German KARLIK sensors, KARLIK models, KARLIK prices

KARLIK sensors are sensors that can sense temperature and convert it into usable output signals. Temperature sensors are the core component of temperature measuring instruments and come in a wide variety. According to the measurement method, they can be divided into two major categories: contact and non-contact. According to sensor materials and electronic component characteristics, they are divided into two types: resistance thermometers and thermocouples.

KARLIK sensor classification

1) Potentiometric displacement sensors convert mechanical displacement into resistance or voltage output that has a linear or arbitrary functional relationship with it. Ordinary linear potentiometers and circular potentiometers can be used as linear displacement and angular displacement sensors, respectively. However, potentiometers designed for the purpose of measuring displacement require a definite relationship between displacement change and resistance change. The movable brush of the potentiometric displacement sensor is connected to the measured object. The displacement of the object causes a resistance change at the moving end of the potentiometer. The amount of resistance change reflects the magnitude of the displacement, while the increase or decrease in resistance indicates the direction of displacement. Usually, a power supply voltage is applied to the potentiometer to convert the resistance change into a voltage output. In wire-wound potentiometers, the resistance changes in steps based on the turn-to-turn resistance as the brush moves, so their output characteristics are also stepped. If this type of displacement sensor is used as a displacement feedback element in a servo system, excessive step voltage may cause system oscillation. Therefore, the resistance value per turn should be minimized during the manufacture of the potentiometer. Another major disadvantage of potentiometric sensors is that they are prone to wear. Their advantages are: simple structure, large output signal, ease of use, and low price. 2) Magnetostrictive displacement sensors accurately measure the actual displacement value of the detected product by detecting the absolute position of the active magnetic ring using non-contact measurement technology. The high precision and high reliability of this sensor have been widely applied in thousands of actual cases. Since the active magnetic ring, which determines the position, and the sensitive element do not have direct contact, the sensor can be used in extremely harsh industrial environments and is not easily affected by oil stains, solutions, dust, or other pollution. The IP protection rating is above IP67. In addition, the sensor uses high-tech materials and advanced electronic processing technology, so it can be used in high-temperature, high-pressure, and high-vibration environments. The sensor output signal is an absolute displacement value; even if the power is interrupted and reconnected, data will not be lost, and there is no need to re-zero. Since the sensitive element is non-contact, even continuous repeated detection will not cause any wear to the sensor, which can greatly improve detection reliability and service life. Magnetostrictive displacement sensors utilize the magnetostrictive principle to accurately measure position by generating a strain pulse signal through the intersection of two different magnetic fields. The measuring element is a waveguide, and the sensitive element inside the waveguide is made of special magnetostrictive material. The measurement process involves generating a current pulse in the electronics housing of the sensor. This current pulse travels through the waveguide, generating a circumferential magnetic field outside the waveguide. When this magnetic field intersects with the magnetic field generated by the active magnetic ring sleeved on the waveguide (which changes with position), a strain mechanical wave pulse signal is generated inside the waveguide due to the magnetostrictive effect. This strain mechanical wave pulse signal travels at a fixed speed of sound and is quickly detected by the electronics housing. Since the transmission time of this strain mechanical wave pulse signal within the waveguide is proportional to the distance between the active magnetic ring and the electronics housing, measuring the time allows for highly precise determination of this distance. Since the output signal is a true absolute value, rather than a proportional or amplified signal, there is no signal drift or value change, and no periodic recalibration is required. Magnetostrictive displacement sensors are high-precision, long-stroke absolute position measurement displacement sensors manufactured based on the magnetostrictive principle. They adopt a non-contact measurement method. Since the active magnetic ring used for measurement and the sensor itself do not have direct contact, they are not subject to friction or wear, resulting in long service life, strong environmental adaptability, high reliability, good safety, and convenience for system automation. Even in harsh industrial environments, they can operate normally. In addition, they can withstand high temperatures, high pressures, and strong vibrations, and are now widely used in the measurement and control of mechanical displacement.

KARLIK sensor working principle

Magnetostrictive displacement (level) sensors utilize the magnetostrictive principle to accurately measure position by generating a strain pulse signal through the intersection of two different magnetic fields. The measuring element is a waveguide, and the sensitive element inside the waveguide is made of special magnetostrictive material. The measurement process involves generating a current pulse in the electronics housing of the sensor. This current pulse travels through the waveguide, generating a circumferential magnetic field outside the waveguide. When this magnetic field intersects with the magnetic field generated by the active magnetic ring sleeved on the waveguide (which changes with position), a strain mechanical wave pulse signal is generated inside the waveguide due to the magnetostrictive effect. This strain mechanical wave pulse signal travels at a fixed speed of sound and is quickly detected by the electronics housing. Since the transmission time of this strain mechanical wave pulse signal within the waveguide is proportional to the distance between the active magnetic ring and the electronics housing, measuring the time allows for highly precise determination of this distance. Since the output signal is a true absolute value, rather than a proportional or amplified signal, there is no signal drift or value change, and no periodic recalibration is required.

KARLIK sensor application areas

It can be widely used for level measurement and control of various liquid tanks in industries such as petroleum, chemical, water conservancy, pharmaceuticals, food, and beverages, as well as in aerospace refueling systems, automotive refueling systems, diesel refueling systems, various hydraulic tanks, hydrological monitoring, and water treatment. Magnetostrictive displacement sensors are high-precision, long-stroke absolute position measurement displacement sensors manufactured based on the magnetostrictive principle. They adopt an internal non-contact measurement method. Since the active magnetic ring used for measurement and the sensor itself do not have direct contact, they are not subject to friction or wear, resulting in long service life, strong environmental adaptability, high reliability, good safety, and convenience for system automation. Even in harsh industrial environments (such as places prone to oil stains, dust, or other pollution), they can operate normally [01]. In addition, they can withstand high temperatures, high pressures, and strong vibrations, and are now widely used in the measurement and control of mechanical displacement. Its stroke can reach 3 meters or longer, with a nominal accuracy of 0.05% F·S. For sensors with a stroke of 1 meters or more, the accuracy can reach 0.02% F, S, and repeatability can reach 0.002% F·S. Therefore, it is widely used in industries such as petrochemical, aerospace, electric power, and water conservancy.

Weidou Intelligent Technology professionally sells German KARLIK sensors, KARLIK proximity sensors, KARLIK distance sensors, KARLIK vision sensors, KARLIK displacement sensors, KARLIK load cells, KARLIK speed sensors, KARLIK photoelectric sensors, KARLIK position sensors, KARLIK angle sensors, KARLIK tactile sensors, KARLIK temperature sensors, KARLIK pressure sensors, KARLIK flow sensors, KARLIK level sensors, KARLIK motion sensors, KARLIK process sensors. Original imports from Germany. Welcome customers to inquire and order.