German SLC-LABTEC sensors, SLC-LABTEC models, SLC-LABTEC prices

SLC-LABTEC pressure sensors for liquid level measurement. Submersible static pressure level transmitters (level gauges) operate on the principle that the static pressure of the measured liquid is proportional to its height. They use advanced imported isolated diffused silicon sensing elements or ceramic capacitive pressure sensors to convert static pressure into electrical signals. After temperature compensation and linearization, these are converted into standard electrical signals (typically 4 to 20mA/15VDC).

SLC-LABTEC 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 the 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. Due to the stepwise change in resistance based on turn resistance as the wiper moves, wire-wound potentiometers exhibit a stepped output characteristic. If such displacement sensors are used as feedback elements in servo systems, 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 product under test. The high precision and reliability of these sensors have been widely demonstrated in thousands of practical applications. Since the moving magnetic ring used for position determination does not directly contact the sensing element, the sensor can be used in extremely harsh industrial environments and is less susceptible to oil stains, solutions, dust, or other contaminants, with an IP protection rating of IP67 or higher. Furthermore, the sensor uses high-tech materials and advanced 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. As the sensing 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 by generating a strain pulse signal through the intersection of two different magnetic fields, based on the magnetostrictive effect. The measuring element is a waveguide, with the sensitive element inside made of special magnetostrictive material. The measurement process involves generating a current pulse in the sensor's electronics chamber, which travels through the waveguide, creating a circular magnetic field around it. When this magnetic field intersects with the field generated by the moving magnetic ring sleeved on the waveguide (which changes with position), a strain mechanical wave pulse signal is generated within the waveguide due to magnetostriction. This strain mechanical wave pulse travels at a fixed speed of sound and is quickly detected by the electronics chamber. 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 chamber, 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 periodic recalibration is not required. Magnetostrictive displacement sensors are high-precision, long-stroke absolute position displacement 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 can withstand high temperatures, high pressures, and strong vibrations, and are now widely used in the measurement and control of mechanical displacement.

SLC-LABTEC sensor operating principle

Magnetostrictive displacement (level) sensors accurately measure position by generating a strain pulse signal through the intersection of two different magnetic fields, based on the magnetostrictive principle. The measuring element is a waveguide, with the sensitive element inside made of special magnetostrictive material. The measurement process involves generating a current pulse in the sensor's electronics chamber, which travels through the waveguide, creating a circular magnetic field around it. When this magnetic field intersects with the field generated by the moving magnetic ring sleeved on the waveguide (which changes with position), a strain mechanical wave pulse signal is generated within the waveguide due to magnetostriction. This strain mechanical wave pulse travels at a fixed speed of sound and is quickly detected by the electronics chamber. 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 chamber, 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 periodic recalibration is not required.

SLC-LABTEC sensor application areas

Widely used for liquid level measurement and control in various tanks across 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 displacement 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 can 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 strokes of 1 meters or more, sensor accuracy can reach 0.02% F, S, and repeatability can reach 0.002% F·S. Therefore, they are widely used in industries such as petrochemical, aerospace, electric power, and water conservancy.

Weidou Intelligent Technology specializes in selling German SLC-LABTEC sensors, SLC-LABTEC proximity sensors, SLC-LABTEC distance sensors, SLC-LABTEC vision sensors, SLC-LABTEC displacement sensors, SLC-LABTEC load cells, SLC-LABTEC speed sensors, SLC-LABTEC photoelectric sensors, SLC-LABTEC position sensors, SLC-LABTEC angle sensors, SLC-LABTEC tactile sensors, SLC-LABTEC temperature sensors, SLC-LABTEC pressure sensors, SLC-LABTEC flow sensors, SLC-LABTEC level sensors, SLC-LABTEC motion sensors, and SLC-LABTEC process sensors. Original imports from Germany. Welcome inquiries and orders from customers.