German innovatest sensor innovatest model innovatest price

innovatest sensors are devices that convert optical signals into electrical signals. Their operating principle is based on the photoelectric effect. The photoelectric effect refers to the phenomenon where electrons in a material absorb photon energy upon illumination, resulting in corresponding electrical effects. Based on the different manifestations of the photoelectric effect, it is categorized into three types: external photoelectric effect, internal photoelectric effect, and photovoltaic effect. Photoelectric devices include phototubes, photomultiplier tubes, photoresistors, photodiodes, phototransistors, and photocells. The performance and characteristic curves of photoelectric devices are analyzed.

innovatest sensor classification

Lasers can be classified into 4 types based on the working medium. (1) Solid-state lasers: The working medium is solid. Common types include ruby lasers, neodymium-doped yttrium aluminum garnet lasers (i.e., YAG lasers), and neodymium glass lasers. Their structures are generally similar, characterized by compactness, robustness, and high power. Neodymium glass lasers achieve the highest pulsed output power, reaching tens of megawatts. (2) Gas lasers: The working medium is gas. Various gas atomic, ion, metal vapor, and gas molecular lasers are available. Common types include carbon dioxide lasers, helium-neon lasers, and carbon monoxide lasers. Shaped like standard discharge tubes, they feature stable output, good monochromaticity, and long service life, but have lower power and conversion efficiency. (3) Liquid lasers: These can be further divided into chelate lasers, inorganic liquid lasers, and organic dye lasers. Among these, organic dye lasers are the most significant, with the key feature of continuously tunable wavelength. (4) Semiconductor lasers: A relatively newer type of laser, with gallium arsenide lasers being the more mature variant. Characteristics include high efficiency, small size, light weight, and simple structure, making them suitable for airborne, naval, and tank applications, as well as portable use by infantry. They can be fabricated into rangefinders and sights. However, they have lower output power, poorer directionality, and are significantly affected by ambient temperature.

innovatest sensor principle

When a laser sensor operates, a laser diode first emits a laser pulse toward the target. After reflection from the target, the laser scatters in various directions. Part of the scattered light returns to the sensor receiver, where it is captured by the optical system and imaged onto an avalanche photodiode. An avalanche photodiode is an optical sensor with internal amplification capabilities, enabling it to detect extremely weak optical signals and convert them into corresponding electrical signals. Commonly used laser distance sensors determine the target distance by recording and processing the time elapsed from the emission of the light pulse to its reception. Laser sensors must measure transmission time with extreme precision due to the high speed of light.

innovatest sensor applications

Oversize vehicle width and height detection: Laser sensors are used for rapid measurement. An industrial PC and the network kernel of the visualization programming software VB enable real-time data transmission and processing with the sensors. User-friendly host control software has also been designed. Field test data show that the system offers good real-time performance and high measurement accuracy, providing practical value. Highway toll stations: Used at highway toll stations for vehicle counting and safety protection. Malaysia's Teras company has already deployed hundreds of BEA laser sensors in its manual and automatic toll collection systems. The laser sensors use the Time-of-Flight (TOF) measurement principle to form 4 planes within the detection zone for vehicle detection. The product also provides features such as rear-end collision prevention and vehicle safety protection. Compared with traditional light curtains, laser sensors offer advantages including high sensitivity, high precision, easy installation, cost-effectiveness, and strong stability. Google's second-generation driverless car: Equipped with laser sensors. In Google's second-generation autonomous vehicle prototype, while the top-mounted laser sensor remains quite prominent, other sensors are installed very discreetly. Distinctive Google driverless car logos are affixed to the front, rear, and both sides of the vehicle. The control and driving principle of the Google driverless car relies on numerous sensors installed around the vehicle to continuously collect precise data about the vehicle itself and its surroundings. An onboard processor analyzes and computes this data, then controls the vehicle's movement based on the results. The driverless car uses GPS devices and sensors to accurately determine the vehicle's position and forward speed, and to identify surrounding pedestrians, vehicles, bicycles, traffic signals, and many other objects. A 360° rotating laser holographic sensor is mounted on the roof of this Lexus vehicle, capable of almost simultaneously sensing conditions in front of, to the sides of, and behind the car. Data collected by the sensor is transmitted via green data cables to the processor located at the right rear of the vehicle. This laser sensor also enables global precise positioning for the driverless car. The original L type Lexus emblem on the front of the car has been removed and replaced with a radar sensor, which measures distance ahead and vehicle speed to assess forward traffic conditions and control safe acceleration and deceleration. Position sensors are also installed on the wheel hubs to detect wheel rotation, aiding in vehicle positioning. The heart of the Google driverless car—the processor—is located at the right rear of the vehicle. Data from all sensors are transmitted here via data cables for software-based analysis and processing, enabling precise sensing and judgment of different objects near the driverless car. In addition to analyzing and judging the current positions of objects around the driverless car, the system uses software to calculate and accurately predict the potential next position of each object. Finally, the driverless car makes safe driving decisions based on all collected data, including controlling vehicle speed and maintaining distance from surrounding vehicles.

Weidou Intelligent Technology specializes in selling German innovatest sensors, innovatest proximity sensors, innovatest distance sensors, innovatest vision sensors, innovatest displacement sensors, innovatest load cells, innovatest speed sensors, innovatest photoelectric sensors, innovatest position sensors, innovatest angle sensors, innovatest tactile sensors, innovatest temperature sensors, innovatest pressure sensors, innovatest flow sensors, innovatest level sensors, innovatest motion sensors, and innovatest process sensors. All products are original imports from Germany. Customers are welcome to inquire and place orders.