German BESTAXX sensor BESTAXX model BESTAXX price

BESTAXX sensors, also known as displacement sensors, are a type of sensor used to detect the distance to an object to perform a preset function, and have been widely applied. Main products include mobile phone proximity sensors and long-distance measurement sensors, which are used in smart belts. Proximity sensors can be classified into optical proximity sensors, infrared proximity sensors, ultrasonic proximity sensors, and others based on their working principles. Most proximity sensors used in mobile phones are infrared proximity sensors, which feature an infrared emitting tube and an infrared receiving tube. When the infrared light emitted by the transmitting tube is received by the receiving tube, it indicates a short distance, requiring the screen to be turned off to prevent accidental operation. When the receiving tube does not receive the infrared light emitted by the transmitting tube, it indicates a long distance, and there is no need to turn off the screen. The working principles of other types of proximity sensors are similar; they determine distance by emitting and receiving a substance, such as ultrasonic waves or light pulses.

BESTAXX 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 displacement 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. The object's displacement causes a change in resistance at the potentiometer's moving end. 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 wire-wound potentiometers, the resistance changes in steps corresponding to the 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 accurately measure the actual displacement of a product by detecting the absolute position of a moving magnetic ring using non-contact measurement technology. The high precision and reliability of these sensors have been widely demonstrated in thousands of practical applications. Since the moving magnetic ring that determines the position does not directly contact the sensitive element, the sensor can be used 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, and there is no need for re-zeroing. Since the sensitive element is non-contact, repeated detection does not cause any wear on the sensor, significantly improving detection reliability and service life. Magnetostrictive displacement sensors accurately measure position by utilizing the magnetostrictive principle, where the intersection of two different magnetic fields generates a strain pulse signal. 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 magnetic 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 the magnetostrictive effect. This strain mechanical wave pulse signal 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 signal 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 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 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 system automation. 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.

BESTAXX sensor working principle

Magnetostrictive displacement (level) sensors accurately measure position by utilizing the magnetostrictive principle, where the intersection of two different magnetic fields generates a strain pulse signal. 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 magnetic 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 the magnetostrictive effect. This strain mechanical wave pulse signal 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 signal 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 no periodic recalibration is required.

BESTAXX sensor application areas

Widely applicable 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 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 system automation. 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 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, they are widely used in the petrochemical, aerospace, electric power, and water conservancy industries.

Weidou Intelligent Technology specializes in selling German BESTAXX sensors, BESTAXX proximity sensors, BESTAXX distance sensors, BESTAXX vision sensors, BESTAXX displacement sensors, BESTAXX torque sensors, BESTAXX speed sensors, BESTAXX photoelectric sensors, BESTAXX position sensors, BESTAXX angle sensors, BESTAXX tactile sensors, BESTAXX temperature sensors, BESTAXX pressure sensors, BESTAXX flow sensors, BESTAXX level sensors, BESTAXX motion sensors, and BESTAXX process sensors. Original German imports. Welcome inquiries and orders from users.