Product Summary:
In the ferromagnetic material, the change of magnetization direction will cause the change of the lattice spacing of the medium, so that the length and volume of the ferromagnetic material change, namely: magnetostriction phenomenon, also known as the Wiederman effect, its reverse effect is called the Villary effect. The principle of magnetostrictive sensor is to use the intersection of two different magnetic fields to produce a strain pulse signal, and then calculate the time period required for this signal to be detected, so as to convert the exact position. The two fields come from a permanent magnet in the ring and from an excitation pulse generated by an electronic component in the sensor's electronics compartment. The excitation pulse travels at the speed of sound along a waveguide wire made of magnetostrictive material in the sensor. When intersecting with the permanent magnetic field in the magnetic ring, the mechanical vibration generated by the waveguide wire forms a strain pulse due to magnetostriction. The strain pulse is quickly detected by a sensing circuit in the electronic chamber. By multiplying by a fixed speed of sound the total time from the moment the excitation pulse is generated to the time the strain pulse is detected, we can accurately calculate the position of the magnet. The process is continuous, so every time the position of the magnetic ring changes, the new position is quickly measured.
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Low power (two-wire) magnetostrictive displacement sensor Overview:
In the ferromagnetic material, the change of magnetization direction will cause the change of the lattice spacing of the medium, so that the length and volume of the ferromagnetic material change, namely: magnetostriction phenomenon, also known as the Wiederman effect, its reverse effect is called the Villary effect.
The principle of magnetostrictive displacement sensor is to generate a strain pulse signal when two different magnetic fields intersect, and then calculate the time period required for this signal to be detected, so as to convert the exact position. The two fields come from a permanent magnet in the ring and from an excitation pulse generated by an electronic component in the sensor's electronics compartment. The excitation pulse travels at the speed of sound along a waveguide wire made of magnetostrictive material in the sensor. When intersecting with the permanent magnetic field in the magnetic ring, the mechanical vibration generated by the waveguide wire forms a strain pulse due to magnetostriction. The strain pulse is quickly detected by a sensing circuit in the electronic chamber. By multiplying by a fixed speed of sound the total time from the moment the excitation pulse is generated to the time the strain pulse is detected, we can accurately calculate the position of the magnet. The process is continuous, so every time the position of the magnetic ring changes, the new position is quickly measured. Since the output signal is a true position value, rather than a proportional or reamplified signal, there is no signal drift or change of value, let alone the need for periodic re-marking as with other sensors.
Magnetostrictive sensor is non-contact, never wear. It has the advantages of high resolution, high precision, high stability, high reliability, fast response time and long service life. Sensors do not need to be re-calibrated or regularly maintained.
Low power consumption (two-wire system) magnetostrictive displacement sensor
★ Measuring range: 30 ~ 5000mm
Power supply voltage: +13VDC to +26.5VDC
★ Output signal: two-wire system current 4-20mADC (low power consumption)
★ Load capacity: current signal output load ≤500Ω
Linear accuracy: ±1mm
★ Resolution: 1mm
★ Hysteresis: better than 0.002%FS
★ Operating temperature: -40℃ ~ +85℃
Measuring rod material: 0Cr18Ni9 (304) 316 stainless steel (special custom)
Electronic warehouse shell material :0Cr18Ni9 (304) 316 stainless steel (special custom)
★ Lead mode: PVC shielded cable (default length: 1m, can also be provided according to customer requirements)
★ Shell protection grade: IP65, IP67
Low power consumption (two-wire system) magnetostrictive displacement sensor wiring mode:
Direct outlet connection of waterproof connector: power supply (brown), 4-20mA output (blue), housing ground (shielded wire)
Low-power (two-wire) magnetostrictive displacement sensor Application field:
Servo hydraulic cylinder piston position preset and feedback, servo cylinder piston position preset and feedback, grinding machinery position preset and feedback, casting and forging machine position preset and feedback, other machinery such as gantry machine position preset and feedback, roadheader, shield machine, coal mine mechanical cylinder position preset and feedback, engineering lifting mechanical cylinder position preset and feedback, Position presetting and feedback of mechanical oil cylinder in steel rolling mill and other steel mills, position presetting and feedback of oil cylinder in blow bottle, position presetting and feedback of injection machine cylinder, adjustment of railway and bridge, detection of water level, control of sluice gate, position presetting and feedback of wood machinery, position presetting and feedback of oil cylinder liquid level, position presetting and feedback of chemical container liquid level, drinking water and sewage treatment system, Geodetic system, gate opening position preset and feedback, cylinder level measurement.
Low power consumption (two-wire system) magnetostrictive displacement sensor Installation size:
