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黄冈MTL3 gate opening built-in high-pressure (magnetostrictive) displacement sensor

  • Product classification:The displacement sensor series for gate water conservancy engineering(can be customized)
  • Number of views:1847
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  • Release time:2024-04-08
  • Overview

Product Introduction:

          The change in magnetization direction in ferromagnetic materials can cause a change in the lattice spacing of the medium, resulting in a change in the length and volume of the ferromagnetic material, known as the magnetostriction phenomenon, also known as the Wiedemann effect, and its inverse effect is called the Villarreal 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, in order to convert the accurate position. These two magnetic fields come from one permanent magnet in the magnetic ring and the other excitation pulse generated by electronic components in the sensor electronic compartment. The excitation pulse runs at the speed of sound along the waveguide wire made of magnetostrictive material inside 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 the magnetostriction phenomenon. The strain pulse is quickly detected by the sensing circuit in the electronic chamber. By multiplying the total time from the moment the excitation pulse is generated to the detection of the strain pulse by a fixed sound velocity, we can accurately calculate the position change of the magnet. This process is continuous, so whenever the position of the magnetic ring changes, the new position will be quickly measured. Since the output signal is the true position value, rather than a proportional or amplified signal, there is no signal drift or variation, and there is no need for periodic recalibration like other sensors.

Magnetostrictive sensors are non-contact and never wear out. It has the advantages of high resolution, high precision, high stability, high reliability, fast response time, and long working life. Sensors do not require recalibration or regular maintenance.



Technical parameters and installation dimensions:


ModelMTL3Working stroke50-12000mm 
Resolution

0.05mm


Non-linear error≤±0.05%FS
Repeatability accuracy≤±0.005%FSPower supplyDC24V
Output
4-20mA, 0-20mA, CANopen RS485, SSI Lightning protectioncan be offered
Working Current
≤50mAPolarity protection≤-30VDC
Overpressure protection≤36vdcInsulation protectionDC500V(Housing grounding)
working temperature-40℃~+80Storage temperature-45~90
IPIP68
Vibration shock10Hz-2000HZ, 5g
Installation directionVertical, inclined, horizontalInstallation methodHoop installation (customizable size)
IP
IP68Vibration shock10Hz-2000HZ, 5g
Material304 Stainless steel (fresh water); 316 stainless steel (seawater)
Electrical connectorsWaterproof joint straight lead, cable standard length 10m (length can be customized)


Wiring Connection :

1. The analog signal output of the sensor has five contacts: power supply positive (brown), power supply negative (black), 

signal output positive (blue), signal output negative (white), and shell ground (shielded wire)


2. The digital signal output of the sensor has five contacts: 

power positive (brown), power negative (black), RS485 A (blue), RS485 B (white), and shell ground (shielded wire)



Installation Dimensions :


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Model Slection : 


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  • Application