To obtain information from the external environment, people must rely on their sensory organs. However, relying solely on human sensory organs is far insufficient for studying natural phenomena and laws, as well as for production activities. To adapt to this situation, sensors are required. Therefore, it can be said that sensors are an extension of the human five senses, also known as electronic senses. With the advent of the new technological revolution, the world has entered the information age. In the process of utilizing information, the primary challenge is to acquire accurate and reliable data, and sensors are the main means and approach for obtaining information in the natural and production fields. In modern industrial production, especially in automated manufacturing processes, various sensors are used to monitor and control parameters throughout the production process, ensuring equipment operates in normal or optimal conditions and achieving the best product quality. Therefore, it can be said that without numerous high-quality sensors, modern production would lose its foundation.

In recent years, the global sensor market has continued to grow steadily, with companies in various countries accelerating the development and industrialization of sensors. Globally, Eastern Europe, the Asia-Pacific region, and Canada are the fastest-growing regions for the sensor market, while the United States, Germany, and Japan are the countries with the largest sensor market distribution. Today, let us take a look at well-known sensor manufacturers in Europe, North America, and Asia.

One, a well-known German sensor manufacturer

Germany regards military sensors as a priority development technology. German sensors fully leverage the inherent advantages of an established industrial powerhouse. Furthermore, German manufacturers integrate their strengths in brand reputation, technical R&D, and quality management, inevitably significantly enhancing the market competitiveness of their products. On one hand, greater attention is paid to saving raw material costs; on the other hand, investment in human capital is emphasized to maintain technological leadership in products, thereby sustaining a high market share!

1 Siemens AG Siemens AG

Siemens has remained active in the Chinese market and holds a leading position in the industrial, energy, and healthcare sectors. The company is dedicated to product development and manufacturing, designing and installing complex systems and engineering projects, and customizing a range of solutions. At the same time, it is a globally renowned sensor manufacturer with high-quality sensors.

Main sensor products: temperature/pressure sensors, sensors used in industrial automation products.

2 WIKA Alexander Wiegand GmbH & Co. KG WIKA Alexander Wiegand GmbH & Co. KG

WIKA is a well-known company in the international pressure and temperature instrumentation market, with an annual turnover of nearly 5 billion euros. Approximately 3 hundred 5 million sets of measuring instruments worldwide are produced by WIKA. While supplying high-quality measuring instruments, the company also provides customers with related comprehensive solutions and integrates them into customers' production processes.

Main sensor products: temperature/pressure sensors, etc.

3 EPCOS AG EPCOS AG

EPCOS develops, manufactures, and sells electronic component modules and systems, focusing on rapidly growing cutting-edge technology markets, including automotive electronics, information and communication technology, industrial electronics, and consumer electronics. EPCOS has a dense network of marketing outlets worldwide, with 60% of its products holding a leading position in the global market.

Main sensor products: temperature/level/pressure sensors, etc.

　　4 First Sensor Technology GmbH

First Sensor Technology Company was spun off from the core research department of the Technical University of Berlin in Germany in 1999. Due to its strong technical capabilities, spirit of innovation, precise grasp of customer needs, and high responsibility towards its employees, it has now become a corporate leader in the pressure sensing technology market. The company focuses on the research of pressure sensors and has been able to increase the maximum operating temperature of its products to 225 °C; it produces millions of pressure sensor chips annually and possesses cleanrooms ranging from 10 ten-thousand class to ten-thousand class.

Main sensor products: force-sensitive chips, pressure sensors, etc.

5 Balluff GmbH Balluff GmbH

German company Balluff was established in 1921 and is a world-leading sensor manufacturer. Its products include a complete series of BNS electronic and electromechanical limit switches, BOS photoelectric switches, BES inductive proximity switches, capacitive switches, BMF magnetic switches, BTL linear displacement sensors, RFID identification systems, and various connector products. In broad industrial application fields, especially in the mechanical equipment sector, it provides users with innovative and experienced sensor application solutions.

Main sensor products: photoelectric sensors, displacement sensors, inductive/capacitive proximity sensors, etc.

6 Hans TurckGmbH & Co. KG Hans Turck GmbH & Co. KG

Turck Group was established in the early sixties, with branch factories in the United States, Switzerland, and China, and branches and offices in countries and regions such as the United Kingdom, the Netherlands, Belgium, and Japan. It has developed into a specialized multinational group. The company is one of the world's largest specialized companies producing proximity switch sensors, industrial fieldbuses, intrinsically safe isolation barriers, and various quick connectors for industrial use.

Main sensor products: inductive, magnetic induction, and capacitive proximity switch sensors, photoelectric sensors, intrinsically safe isolation barriers, flow switch sensors, various connectors for bus products, etc.

7 Pepperl+Fuchs GmbH Pepperl+Fuchs GmbH

Pepperl+Fuchs is one of the most famous and largest specialized sensor companies globally, offering a comprehensive range of products in large volumes with reliable quality. The company was founded in 1945 and launched the revolutionary first generation of inductive sensors to the world in 1958, successfully applying them in the chemical and petroleum industries. From inductive sensors to ultrasonic sensors, from photoelectric sensors to rotary encoders, from identification systems to fieldbus systems, and from level and point level sensors to safety light curtains, as well as explosion-proof sensors, safety barriers, and isolation barriers, the company provides specialized research and high-quality products for all these categories.

Main sensor products: inductive/capacitive/magnetic proximity switches, distance/ranging sensors, photoelectric sensors, encoders, vision sensors, through-beam sensors, tilt sensors, ultrasonic sensors, etc.

8 SICK AG SICK

SICK was established in 1946. Today, SICK has established branches in more than 40 countries worldwide, offering a comprehensive range of sensor types with good product quality. In 2008, SICK achieved sales revenue exceeding 7 billion euros.

Main sensor products: ultrasonic sensors, capacitive/inductive/electromagnetic proximity sensors, magnetic cylinder sensors, color mark sensors, fluorescent sensors, color sensors, distance sensors, etc.

9 di-soricIndustrie-electronic GmbH & Co. KG di-soric

The company was founded in 1986. It has obtained ISO9001 certification and introduced an advanced fully automated ERP logistics and warehouse management system. Upholding the consistent rigorous and pragmatic style of German companies, its products feature high quality and high reliability, with 100% inspection. The company invests heavily in R&D and has obtained many patented achievements. Products such as U type/L type photoelectric through-beam sensors have become standard products in the sensor industry.

Main sensor products: focused/through-beam/reflective sensors, programmable color mark sensors, capacitive label sensors, inductive ring sensors, ring/angle/fork/frame grid sensors, proximity switches, etc.

　　10 SensortechnicsGmbH

Sensortechnics is a renowned German manufacturer of precision pressure sensors, now a subsidiary of Augusta Technologie AG. The company offers products covering a pressure range from 1 mbar to 1000mbar. It develops and manufactures pressure sensors and sensing systems, level sensors and switches, as well as oxygen sensors and flow sensors; it also specializes in producing sensors and highly customized complex integrated remote sensing systems, providing customers with OEM fluid control systems. Please follow the WeChat official account: Industrial Intelligence (roboTInfo) Even Jack Ma is following

Main sensor products: pressure sensors, miniature oxygen sensors, photoelectric level switches, electronic pressure switches, etc.

11 Ahlborn Mess- undRegelungstechnik GmbH Ahlborn

The company specializes in producing data acquisition systems and data loggers. Due to the adoption of core patented technologies, application is very convenient, with software, systems, and sensors all available. The company offers a wide variety of sensors with good applicability and has unique expertise in sensor applications; it holds unique advantages and convenience in measuring large generators and compressor equipment.

Main sensor products: indoor parameter measurement, meteorological parameters, water quality analysis, infrared temperature measurement sensors.

12 Proxitron GmbH Proxitron

The company has 2 0 years of history in the hot metal detection and proximity sensor industry, and its brand enjoys a good reputation worldwide. Product quality represents not only long-term reliability but also safety and authority. The company's proximity switches are among the most robust products in the world for harsh conditions. Infrared hot metal detectors are the characteristic products of Proxitron, which can be used for hot metal detection and identification on steel pipe production lines or for judging whether object temperatures are correct.

Main sensor products: high-temperature sensors, thermal flow sensors, infrared temperature measurement sensors, light grids, etc.

13 ChrisTIan Bürkert GmbH & Co. KG Bürkert

The company is a global leader in the field of fluid control, having established distributors and partners in 40 countries and regions worldwide, building various customer networks. Each year, company employees are dedicated to developing new and highly advanced products and solutions, as well as system integration process measurement and control unit solutions. The company invests heavily in R&D, offering advanced technical solutions and good service.

Main sensor products: flow sensors, gas sensors, pressure sensors, analytical sensors, temperature sensors, etc.

14 Infineon Technologies AG Infineon Technologies

Headquartered in Neubiberg, Germany, Infineon Technologies AG provides semiconductor and system solutions for three major technological challenge areas of modern society: energy efficiency, connectivity, and security. Infineon invests an average of 17% of its annual sales revenue in R&D and holds 22900 patents globally. As one of the leading semiconductor companies worldwide, it produces semiconductor sensors with excellent performance.

Main sensor products: pressure sensors, magnetic sensors, tire pressure sensors, etc.

Two, a well-known Swiss sensor manufacturer

　　15 Metallux SA

Founded in 1986, Metallux is a world-leading manufacturer of thick-film technology electronic devices. The company has a broad business scope capable of meeting the special needs of enterprises and users. Its customers cover the automotive, electronics, pharmaceutical, and other industrial sectors.

Main sensor products: linear and rotary sensors, ceramic and stainless steel pressure sensors, metal foil sensors, etc.

16 KELLER AG für Druckmesstechnik Keller Messtechnik AG

Keller Messtechnik AG of Switzerland is a world-renowned manufacturer of diffused silicon piezoresistive pressure sensors. It possesses strong R&D capabilities and a complete product range, from low-cost industrial models to high-precision types meeting laboratory requirements. Its products are widely used in aviation, marine vessels, trains, automotive pressure measurement systems, construction machinery, petroleum, petrochemical, power stations, environmental protection, metallurgy, air conditioning, and other fields.

Main sensor products: diffused silicon pressure sensors and transmitters, ceramic capacitive pressure sensors and transmitters, diffused silicon and ceramic capacitive level sensors and transmitters, digital pressure gauges, pressure calibrators, etc.

17 Endress+HauserInstruments International AG E+H Company

E+H was founded in 1953, with its headquarters in Reinach, Switzerland. It has established large-scale production centers in major industrial countries such as Germany, Switzerland, France, the United States, and Japan, and has 70 independent subsidiaries distributed globally. The company's quality management and comprehensive quality assurance system have both reached the ISO9001 international standard.

Main sensor products: relevant sensors for process control applications.

18 BaumerGroup Baumer Group

Over the past few decades, the Baumer Group has gained an outstanding reputation worldwide as an internationally recognized leading supplier of sensors, long providing innovative, high-quality sensor products for factory and process automation industry applications. It offers a rich portfolio of standard products based on various sensor technologies.

Main sensor products: photoelectric sensors, inductive sensors, capacitive sensors, ultrasonic sensors, force/strain/pressure sensors, magnetic sensors, etc.

19 MEMSENS Company

MEMSENS is a Swiss company specializing in the development and manufacture of pressure sensors and pressure transmitters. Currently, the company offers two main product categories to the market: OEM pressure sensors and matching pressure transmitters. In addition to several standard products, it primarily designs and provides non-standard products and technical services for users, with main services including sensor technology development and consultation. MEMSENS is located in the center of Swiss microelectronics and micromachining technology, surrounded by renowned European and global universities and research institutions, with which it maintains close contacts and cooperation.

Main sensor products: sensor cores, isolated pressure sensors, pressure transmitters, etc.

Three, a well-known Italian sensor manufacturer

　　20 MICROTEL Tecnologie ElettronicheS.p.A.

The company has a team of engineers with many years of experience in ceramic thick-film technology. In 1989, Microtel established a sensor division, which has the independent authority to design and develop ceramic pressure sensors. Since the mid-90s, Microtel began forming a European group company, focusing on technological production, and established relevant divisions in Germany, France, and Italy. Microtel is a member of the International Society for Microelectronics and Packaging and participates in European research and development programs.

Main sensor products: ceramic thick-film pressure sensors, etc.

　　21 DatalogicS.p.A.

The Datalogic Automation Division is one of the major manufacturers of automatic identification systems in the global industrial sector, providing customers with more comprehensive automation solutions, including industrial sensors, industrial safety protection, automatic barcode scanning systems, machine vision systems, and RFID solutions. Its famous series of color mark sensors, including TLu, TL80, TL10, S60-W, and S50-W, hold a leading position in the global color mark sensor market.

Main sensor products: color mark sensors, miniature sensors, tubular sensors, reflective and fluorescent sensors, color sensors, mini sensors, fiber optic color sensors, etc.

　　22 GefranS.p.A

The Gefran Group is headquartered in Italy and has 6 manufacturing plants worldwide. It has certain advantages in the production and application of melt pressure sensors.

Main sensor products: linear displacement sensors, tension sensors, melt pressure sensors, pressure sensors, temperature sensors, relative humidity sensors, etc.

Four, a well-known American sensor manufacturer

As early as the 80s, the United States claimed that the world had entered the sensor era. In the early 80s, the United States established the National Technology Group (BGT) to help the government organize and lead sensor technology development efforts among major companies and national enterprises and institutions. Among the 22 technologies crucial to long-term national security and economic prosperity in the United States, 6 are directly related to sensor information processing technology. Among the key technologies vital to protecting the quality advantage of U.S. weapon systems, 8 are passive sensors. In 2000, the U.S. Air Force listed 15 key technologies helpful for enhancing Air Force capabilities in the 21th century, with sensor technology ranking second.

The U.S. development model followed a path of military first, then civilian use, and improvement first, then widespread adoption. It has significant characteristics:

(One) Great emphasis is placed on research into functional materials for sensors:

(Two) attaches great importance to sensor technology development: for example, the annual equipment investment of Honeywell's Solid State Sensor Development Center in the United States amounts to 5000 ten thousand US dollars. It currently possesses the most advanced complete sets of equipment and production lines, including computer-aided design, single crystal growth, processing, pattern generators, step-and-repeat photography, automatic photoresist coating and photolithography, plasma etching, sputtering, diffusion, epitaxy, evaporation, ion implantation, chemical vapor deposition, scanning electron microscopy, packaging, shielding, and dynamic testing. Furthermore, it claims that updating most of these instruments and equipment approximately every three years is necessary to maintain its technological leadership.

(Three) emphasizes process research: while sensor principles are neither difficult nor confidential, manufacturing processes are highly proprietary. Many evaluate "sensors" not as ordinary industrial products, but as perfect examples of craftsmanship. In terms of R&D, there are approximately 1, 300 manufacturers producing and developing sensors in the United States, along with more than 100 research institutes and universities.

23 MeasurementSpecialties Inc. US MEAS Sensors

Measurement Specialties - US MEAS Sensors masters world-leading MEMS manufacturing technology and professionally produces various types of sensors. Its products are widely used in aerospace, national defense, mechanical equipment, industrial automatic control, automotive electronics, medical care, home appliances, HVAC, petrochemicals, air compressors, meteorological detection, and instrumentation. The company was the first in the industry to achieve mass production technology for silicon MEMS, the first to commercialize LVDT, and the first to transform Piezo Film technology into low-cost commercial sensors and vital signs sensors.

Main sensor products: pressure and dynamic pressure sensors, displacement sensors, tilt and angular displacement sensors, Hall encoders, magnetoresistive sensors, acceleration sensors, vibration sensors, humidity sensors, temperature sensors, etc.

24 HoneywellInternaTIonal Inc. Honeywell International Inc.

Honeywell International Inc. is a diversified multinational corporation that is a world leader in technology and manufacturing, globally, its business covers numerous fields. Mircro Switch (Micro Switch) was founded in 1935, and later joined Honeywell to become part of Honeywell's Sensing and Control strategic division. It was the first in the world to develop the STC3000 series of intelligent pressure sensors, demonstrating technological leadership. Currently, it has more than 20 series and nearly sixty thousand products, with three hundred thousand users worldwide. For nearly half a century, Honeywell's Sensing and Control division has, with its excellent product quality and reliability, as well as continuous technological innovation, earned a high reputation worldwide.

Main sensor products: diffused silicon pressure sensors and transmitters, ceramic capacitive pressure transmitters, diffused silicon and ceramic capacitive level transmitters, digital pressure gauges, pressure calibrators, etc.

25 KellerAmerica, Inc. Keller America Inc.

Keller is closely related to the development of piezoresistive technology. Shortly after Mr. Keller developed the first piezoresistive pressure sensor, he founded Keller in 1975, which has since grown into a global leader providing pressure measurement solutions. The company produces 100 ten thousand sensors annually and owns 10 series of OEM pressure sensor products.

Main sensor products: pressure sensors, pressure transmitters, etc.

26 EmersonElectric Co. Emerson Electric Co.

Company Profile: Emerson Electric Co. was established in St. Louis, Missouri, USA, in 1890 as a manufacturer of motors and fans. After more than 100 years of effort, Emerson has grown from a regional manufacturer into a global group providing technical solutions. It ranks among the Fortune 500 largest companies and has long been ranked in the top two within the electronics industry.

Main sensor products: vibration sensors, P H sensors, etc.

27 Rockwell Rockwell Automation Ltd.

Company Profile: Rockwell Automation is an industrial automation giant with a century-long history. It holds a leading position globally in industrial automation power, control, and information technology solutions. It entered China in 1988, establishing a production base in Shanghai to provide world-class products, solutions, service support, and technical training for Chinese manufacturing. Meanwhile, Rockwell Automation provides expert support for customers in various industrial fields, such as mining, cement, crane and marine applications, subways, semiconductors, water and wastewater treatment, tires, oil and petrochemicals, metallurgy, automotive, food and beverage, and power and energy.

Main sensor products: pressure sensors, temperature sensors, capacitive proximity sensors, inductive proximity sensors, photoelectric sensors, ultrasonic sensors, etc.

28 GeneralElectric Company General Electric Company

General Electric Company (GE) is a diversified technology, media, and financial services company, and one of the world's renowned sensor manufacturers, dedicated to continuous innovation, invention, and reinvention to solve customer problems. GE consists of four business groups, each comprising multiple departments with shared growth. GE offers a broad range of products and services, from aircraft engines, power generation equipment, water treatment, and security technologies, to medical imaging, commercial and consumer finance, media, and industrial products.

Main sensor products: vehicle-mounted sensors, pressure sensors, temperature sensors, optical sensors (components), etc.

29 RaytekCorporaTIon Raytek Corporation

US Raytek Corporation is one of the world's largest manufacturers of non-contact infrared thermometers, with infrared temperature sensor sales ranking first in the industry globally. The company offers approximately 13 series and hundreds of varieties of infrared thermometers and temperature sensors, covering a temperature measurement range of -50℃ to +3000℃. RAYTEK (Raytek) infrared thermometers are widely used in many fields, including equipment fault diagnosis, metallurgy and heat treatment, electric power, railways, and food.

Main sensor products: temperature sensors, etc.

30 PCBPiezotronics, Inc. US PCB

PCB is a world-renowned manufacturer of sensors and measuring instruments. Founded in 1967, the company is dedicated to the research, development, and manufacturing of piezoelectric measurement technology. Its pioneering ICP sensors (with built-in integrated circuit charge amplifiers) enjoy a prestigious reputation worldwide. The acceleration, pressure, force, and torque sensors produced, along with corresponding measuring instruments, are widely used in aviation, aerospace, shipbuilding, weaponry, nuclear industry, petrochemicals, hydropower, electric power, light industry, transportation, and vehicles.

Main sensor products: sensors for acceleration, pressure, force, torque, shock, vibration, acoustics, modal, and underwater acoustic measurements, as well as supporting instruments and equipment.

31 BannerEngineering Corp. Banner Engineering International Co., Ltd.

Company Profile: Headquartered in Minnesota, USA, Banner Engineering is a top global expert in automation technology and provider of total solutions. Throughout more than 40 years of development, innovation has always been the driving force behind product application and R&D. The company offers over 22000 types of products, boasting one of the most comprehensive product lines.

Main sensor products: photoelectric sensors, vision sensors, rotary encoders, etc.

32 MeritSensor Systems

Merit is a leader in the field of piezoresistive pressure sensors. Its products operate in temperature ranges from -40°C to +150°C, providing high-performance solutions for various application areas.

Main sensor products: piezoresistive pressure chips, pressure sensors, etc.

33 US STS

The company is one of the largest and most capable professional sensor manufacturers in the world. It provides various models of conventional sensors, as well as intrinsically safe (explosion-proof) and vibration-resistant load cells capable of withstanding high temperatures up to 200°C and low temperatures down to -50°C, various weighing components, display controllers, and transmitters (including multi-stage explosion-proof devices). Its load cells hold a 60% market share in the United States, and its products have entered more than 60 industrialized countries.

Main sensor products: load cells, high-temperature sensors, etc.

Five, a well-known Japanese sensor manufacturer

Japan ranks sensor technology as the foremost among its ten major technologies. Japanese business leaders claim that "whoever dominates sensor technology can dominate the new era." Japan attaches great importance to the development and utilization of sensor technology, listing it as one of the 6 core technologies for national priority development. Among the key research projects for the 90s formulated by the Science and Technology Agency of Japan, there were 70 key topics, 18 of which were closely related to sensor technology. Japan emphasizes practical application and commercialization, adopting an approach of widespread adoption first followed by improvement, progressing from introduction, digestion, and imitation to independent improvement, design, and innovation. The former approach costs more, while the latter costs less and is faster. In terms of R&D, there are approximately 800 manufacturers in Japan producing and developing sensors.

34 Yokogawa Electric Corporation Yokogawa Electric Corporation

Yokogawa Electric Corporation is a globally renowned leader in measurement, industrial automation control, and information systems. Since its establishment in 1915, it has been committed to providing users with cutting-edge professional technology, supporting customers in reforms to improve operational efficiency. Its Measurement Instruments Division, the core of its measurement technology business, offers products with high stability and reliability, along with measurement technologies that consistently stay ahead of the times. Through its merger with Ando Electric Co., Ltd., it further expanded its production scope for communication measurement instruments. In the field of information processing, cutting-edge technology has also been fully leveraged; currently, medical image information systems are already deployed in many hospitals, contributing to the support of healthcare and informatization at medical sites.

Main sensor products: EJA resonant pressure sensors, P H sensors, flow sensors, etc.

35 OMRON Corporation OMRON Corporation

OMRON Group's product varieties span dozens of categories, covering extensive fields such as industrial automation control systems, electronic components, automotive electronics, social systems, and health and medical equipment. It is a globally renowned manufacturer of automation control and electronic devices, mastering world-leading core technologies in sensing and control.

Main sensor products: temperature/humidity sensors, discrete sensors, etc.

36 Fuji Electric Group Fuji Electric Group

Fuji Electric Group maximizes corporate group value by creating economic profits, taking contributions to society, shareholders, and investors as its basic management policy. To achieve this goal, a pure holding company structure, dividing the overall business into subsidiaries, was introduced starting in 2003-10. Through the self-supporting and rapid operations of specialized companies, it forms a collection of "the strongest specialized companies in the industry." The company's silicon capacitive sensors and transmitters feature unique technical solutions, particularly in static pressure protection.

Main sensor products: pressure sensors, capacitive sensors, and transmitters, etc.

37 KEYENCE Corporation KEYENCE Corporation

With the rapid development of industrial automation, KEYENCE, as a major supplier of sensors and measuring instruments, continuously develops and manufactures newer, more reliable products to meet the needs of various manufacturing industries. The company is committed to supporting its extensive user base and assisting them in becoming leaders in their respective industries.

Main sensor products include: fiber optic sensors, photoelectric sensors, digital laser sensors, contact sensors, RGB color sensors, proximity sensors, pressure sensors, etc.

Six, a well-known sensor manufacturer in India

　　38 SunproInstruments （India） Pvt. Ltd.

The company was established in 1933, and is a specialized company for the production and marketing of instrumentation electronics. To maintain its competitive advantage in the global market and continuously enhance its technology, The research and development department has consistently met customer needs with high-quality products. The main application areas of the products are foundries, sugar mills, heat treatment machinery manufacturing, agricultural equipment manufacturing, and meteorological equipment manufacturing.

Main sensor products: pressure sensors, wind speed sensors, temperature and humidity sensors, etc.

　　39 Haris Sensor Technologies Pvt. Ltd.

The company is a pioneer in India in the production of pressure, flow indicators, and digital transmission systems; it provides state-of-the-art sensors for Indian industry, military facilities, atomic research, and space research organizations.

Main sensor products: pressure sensors, flow/level sensors and transmitters, etc.

　　40 Syscon Instruments Pvt. Ltd.

The company initially supplied products to research institutes and universities, and its products have now entered the automotive and other industrial sectors. Through collaborations with foreign companies, the products can meet the needs of more complex and sensitive measurement test instruments and systems.

Main sensor products: load cells, displacement sensors, pressure sensors, torque sensors, vibration sensors, machine tool sensors, drilling tool sensors, grinding tool sensors, etc.

41 Ajay Sensors & Instruments Company

The company has developed into a supplier exporting temperature sensors, humidity sensors, atmospheric temperature/humidity, and barometric pressure sensors, enjoying a certain reputation in the electronics field. It has extensive experience in the production of pressure sensors, temperature sensors, signal conditioners, and controllers.

Seven, a well-known sensor manufacturer in South Korea

42 South Korean GreenSensor company

By introducing new technologies and developing new products, Green sensor company produces high-quality products that meet customer needs.

Main sensor products: pressure sensors, high-temperature pressure sensors, differential pressure sensors, temperature sensors, etc.

　　43 Wise ControlInc.

South Korean Wise Control Company, with over forty years of history, leveraging continuous innovation and excellent quality advantages, has achieved an international leading position in the fields of pressure, temperature, and natural gas measurement. The company has highly specialized production lines, modern production facilities, service centers, and more than 60 branches worldwide.

Main sensor products: capacitive pressure sensors, etc.

　　44 Sensor System Technology Co.， Ltd.

The company was established in 1998, mainly developing high-precision sensors, and is a professional sensor manufacturing enterprise.

Main sensor products: pressure sensors and transmitters, electronic pressure switches, temperature sensors, thermocouples, etc.

　　45 Autonics

Autonics is a leading supplier of automation solutions in South Korea, with core products including various sensors, controllers, motion equipment, measurement equipment, laser marking systems, connection equipment, etc., having 13 international offices including those in South Korea, China, Japan, India, and the United States, capable of providing comprehensive automation solutions to global customers.

Main sensor products: photoelectric sensors, fiber optic sensors, door sensors, light curtains, proximity switches, pressure sensors, rotary encoders, etc.

Eight, a well-known sensor manufacturer in China

Compared with advanced foreign countries, China's sensor technology lags behind by 10 years in scientific research and development, and lags behind by 15 years in production technology. In recent years, R&D bases such as the State Key Laboratory of Sensor Technology, the State Key Laboratory of Micro/Nano, and the State Key Laboratory of Robotics have been established, and the sensitive element and sensor industry has been preliminarily established. Currently, China already has 1, 688 enterprises engaged in the production and R&D of sensors. Domestic sensor manufacturing professionals are heavily investing capital, with the goals of increasing variety, improving quality, and enhancing economic benefits, accelerating the industrialization of sensors, striving to achieve a variety share of 70~80% for domestically produced sensors and instrument components in the Chinese market within the next few years, and over 60% for high-end products.

46 ShenyangAcademy of Instrumentation Science Shenyang Academy of Instrumentation Science

In 1995, approved by the State Planning Commission of China, the National Engineering Research Center for Sensors was established at the Shenyang Academy of Instrumentation Science. This center is the only national-level institution in China engaged in engineering-oriented scientific research and production testing of sensor technology. It professionally conducts research on MEMS technology, basic process technologies for silicon microchips and force/thermal/magnetic sensors, and sensor engineering technologies. It possesses multiple flexible production lines for silicon-based force-sensitive and micro-electromechanical systems (MEMS) sensors, transmitters, and related instruments. It is equipped with a sensor CAD design center, a sensor reliability and testing center, more than 200 units of specialized process equipment and instruments, and supporting infrastructure including standard production sites and laboratories. It masters and possesses independent core technologies and capabilities for the design, processing, packaging, testing, rapid R&D, and mass production of complete products ranging from sensor sensitive chips to sensors and related instruments. Main sensor products: force/thermal/magnetic sensors, transmitters, etc.

47 Research Instituteof Tsinghua University in Shenzhen

In 1996-12, the Shenzhen Municipal Government and Tsinghua University, adhering to the principles of complementary advantages and strong alliance, jointly established the Research Institute of Tsinghua University in Shenzhen to explore new models for integrating industry, academia, and research. The joint establishment of the institute by the city and the university pioneered a precedent in China. Shenzhen Collihigh Technology Co., Ltd. (abbreviated as Tsinghua Collihigh) is a high-tech enterprise established by the Research Institute of Tsinghua University. The company successfully industrialized its independently owned intellectual property rights for the national "Eighth Five-Year Plan" and "Ninth Five-Year Plan" key scientific research projects—quartz resonant force-sensitive sensors—and was listed by the State Planning Commission as a national-level high-tech industrialization demonstration base.

Main sensor products: gas sensors and gas detection systems, etc.

48 Beijing Collihigh SensorTechnology Center

Beijing Kunlun Coast Sensor Technology Center is a large professional industrial control enterprise alliance group. Relying on major scientific research units such as the Institute of Mechanics and the Institute of Acoustics of the Chinese Academy of Sciences, and the Ministry of Aerospace Industry, it has formed long-term scientific research cooperation relationships with universities such as Tsinghua University. It specializes in the design, production, and sales of various sensors, transmitters, measurement and control instruments, thermal instruments, field controllers, computer control systems, data acquisition systems, various environmental monitoring systems, specialized control system application software, and embedded system development and applications. Its products have broad application prospects in fields such as telecommunications, electric power, petrochemicals, environmental protection, papermaking, metallurgy, food, medical care, and HVAC.

Main sensor products: temperature/temperature and humidity transmitters, pressure/differential pressure/liquid level/marine pressure/ultrasonic level/submersion transmitters, displacement/weighing/electrical quantity sensors, etc.

49 ELCO (Tianjin) Electronics Co., Ltd. Attraction of the Activity

As a provider of local industrial automation products and a supplier of intelligent manufacturing solutions in China, ELCO holds a leading position in numerous fields such as automobiles, automotive parts, construction machinery, robotics, food and pharmaceuticals, printing and packaging, textile machinery, logistics equipment, and electronics manufacturing. ELCO provides a full series of top-down services from the system layer, control layer, network layer to the execution layer for the overall planning and implementation of smart factories. Its products and solutions cover, but are not limited to, cloud platforms, MES manufacturing execution systems, industrial fieldbuses, industrial Ethernet, industrial wireless communication, IoT gateway chips, automated production lines composed of robots and intelligent equipment, integration of automated electrical control systems, intelligent logistics and warehousing systems, IoT integrated development solutions and services, to achieve truly intelligent manufacturing, thereby bringing about significant improvements in productivity and production efficiency.

Main sensor products: inductive sensors, capacitive sensors, photoelectric sensors, ultrasonic sensors, magnetic induction sensors, hot/cold metal detection, pressure/flow sensors, linear displacement sensors, etc.

　　Today, the old industrial powers such as Germany, Japan, and the United States remain active in the international market. In these countries, the application scope of sensors is very broad, many manufacturers have achieved large-scale production, and some companies have an annual production capacity reaching tens of millions or even hundreds of millions of units. In contrast, the application scope of sensors in China is relatively narrow, with most still confined to aerospace and industrial measurement and control. According to relevant data, the annual output value of the largest sensor company in China is only 55000 units. Moreover, the market for high-precision, advanced sensors and new types of sensors is almost entirely monopolized by foreign brands or joint ventures.

However, China's sensor industry is now facing its best historical moment, with large market demand and national policy support. On one hand, many domestic enterprises are striving to develop their own new technologies, and enterprise management models have greatly improved; on the other hand, the international AMA German Sensor Association also participates to provide support. Quality, price, and functionality are aspects that domestic enterprises will need to focus on improving in the future.

In the future, domestic sensors must also navigate the transition from industrial process detection to functionally independent equipment and instruments, such as everyday blood pressure monitors which belong to this category. It is widely believed that domestic enterprises will make greater achievements in learning from others' strong points to offset their weaknesses, thereby striving to stand on the same starting line as foreign enterprises as soon as possible, and advancing towards miniaturization, networking, and specialization of sensors. We look forward to significant achievements by future Chinese sensors, but Chinese sensor enterprises still have a long way to go and require the joint efforts of a vast number of practitioners.