German WITEC 3D sensor WITEC 3D model WITEC 3D price

WITEC 3D sensors are the direct source of information for the entire machine vision system, mainly consisting of one or two image sensors, sometimes accompanied by light projectors and other auxiliary equipment. The main function of a vision sensor is to acquire the raw images that the machine vision system needs to process. Image sensors can use laser scanners, line-scan and area-scan CCD cameras or TV cameras, as well as the latest digital cameras.

WITEC 3D sensor classification

1) Potentiometric displacement sensors convert mechanical displacement into resistance or voltage output with a linear or arbitrary functional relationship. Standard linear and rotary potentiometers can be used as linear and angular displacement sensors, respectively. However, potentiometers designed for displacement measurement require a defined relationship between displacement change and resistance change. The movable wiper of a potentiometric displacement sensor is connected to the measured object. Displacement of the object causes a resistance change at the potentiometer's moving terminal. The magnitude of the resistance change reflects the displacement value, while an increase or decrease in resistance indicates the direction of displacement. A supply voltage is usually applied to the potentiometer to convert the resistance change into a voltage output. In wirewound potentiometers, the resistance changes in steps corresponding to the turn-to-turn resistance as the wiper moves, resulting in a stepped output characteristic. If such a displacement sensor is used as a displacement feedback element in a servo system, excessive step voltages can cause system oscillation. Therefore, the resistance per turn should be minimized during potentiometer manufacturing. Another major disadvantage of potentiometric sensors is susceptibility to wear. Their advantages include simple structure, large output signal, ease of use, and low cost. 2) Magnetostrictive displacement sensors precisely detect the absolute position of a moving magnetic ring using non-contact measurement technology to determine the actual displacement of the target product. The high precision and reliability of these sensors have been widely demonstrated in thousands of practical applications. Since the moving magnetic ring that determines position does not directly contact the sensitive element, the sensor can operate in extremely harsh industrial environments and is less affected by oil stains, solutions, dust, or other contaminants, with an IP protection rating of IP67 or higher. Furthermore, the sensor uses advanced materials and electronic processing technology, allowing it to operate in high-temperature, high-pressure, and high-vibration environments. The sensor output is an absolute displacement value; data is not lost even if power is interrupted and reconnected, eliminating the need for re-zeroing. Because the sensitive element is non-contact, repeated measurements do not cause any wear on the sensor, significantly improving detection reliability and service life. Magnetostrictive displacement sensors accurately measure position based on the magnetostrictive principle, generating a strain pulse signal where two different magnetic fields intersect. The measuring element is a waveguide, with the sensitive element inside made of special magnetostrictive material. The measurement process begins when the sensor's electronics generate a current pulse that travels along the waveguide, creating a circular magnetic field around it. When this field intersects with the magnetic field generated by the moving magnetic ring sleeved on the waveguide (which changes with position), the magnetostrictive effect produces a strain mechanical wave pulse signal within the waveguide. This strain mechanical wave pulse travels at a fixed speed of sound and is quickly detected by the electronics. Since the transmission time of this strain mechanical wave pulse within the waveguide is proportional to the distance between the moving magnetic ring and the electronics, measuring the time allows for highly precise determination of this distance. Because the output signal is a true absolute value rather than a proportional or amplified signal, there is no signal drift or value variation, and regular recalibration is not required. Magnetostrictive displacement sensors are high-precision, long-stroke absolute position measurement sensors manufactured based on the magnetostrictive principle. They employ a non-contact measurement method; since the moving magnetic ring used for measurement does not directly contact the sensor itself, friction and wear are avoided, resulting in long service life, strong environmental adaptability, high reliability, good safety, and ease of integration into automated systems. They operate normally even in harsh industrial environments. Additionally, they withstand high temperatures, high pressures, and strong vibrations, and are now widely used in the measurement and control of mechanical displacement.

WITEC 3D sensor operating principle

Magnetostrictive displacement (level) sensors accurately measure position based on the magnetostrictive principle, generating a strain pulse signal where two different magnetic fields intersect. The measuring element is a waveguide, with the sensitive element inside made of special magnetostrictive material. The measurement process begins when the sensor's electronics generate a current pulse that travels along the waveguide, creating a circular magnetic field around it. When this field intersects with the magnetic field generated by the moving magnetic ring sleeved on the waveguide (which changes with position), the magnetostrictive effect produces a strain mechanical wave pulse signal within the waveguide. This strain mechanical wave pulse travels at a fixed speed of sound and is quickly detected by the electronics. Since the transmission time of this strain mechanical wave pulse within the waveguide is proportional to the distance between the moving magnetic ring and the electronics, measuring the time allows for highly precise determination of this distance. Because the output signal is a true absolute value rather than a proportional or amplified signal, there is no signal drift or value variation, and regular recalibration is not required.

WITEC 3D sensor application areas

Widely used for level measurement and control in various liquid tanks in the petroleum, chemical, water conservancy, pharmaceutical, food, and beverage industries, 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 sensors manufactured based on the magnetostrictive principle. They employ an internal non-contact measurement method; since the moving magnetic ring used for measurement does not directly contact the sensor itself, friction and wear are avoided, resulting in long service life, strong environmental adaptability, high reliability, good safety, and ease of integration into automated systems. They operate normally even in harsh industrial environments (such as those prone to oil stains, dust, or other contamination) [01]. Additionally, they withstand high temperatures, high pressures, and strong vibrations, and are now widely used in the measurement and control of mechanical displacement. Their 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, accuracy can reach 0.02% F, S, and repeatability can reach 0.002% F·S, leading to their widespread application in the petrochemical, aerospace, electric power, and water conservancy industries.

Weidou Intelligent Technology specializes in selling German WITEC 3D sensors, WITEC 3D proximity sensors, WITEC 3D distance sensors, WITEC 3D vision sensors, WITEC 3D displacement sensors, WITEC 3D load cells, WITEC 3D speed sensors, WITEC 3D photoelectric sensors, WITEC 3D position sensors, WITEC 3D angle sensors, WITEC 3D tactile sensors, WITEC 3D temperature sensors, WITEC 3D pressure sensors, WITEC 3D flow sensors, WITEC 3D level sensors, WITEC 3D motion sensors, and WITEC 3D process sensors. Original imports from Germany. Customers are welcome to inquire and order.