Hxcg Eh Magnetostrictive Displacement Position Transducer Liquid Level Sensor

Overview of EH Magnetostrictive Displacement/Level Sensor:

The change of the magnetization direction in the ferromagnetic substance will cause the change of the lattice spacing of the medium, so that the length and volume of the ferromagnetic substance will change, that is, the phenomenon of magnetostriction, also known as the Wiedemann effect, and its inverse effect is called Villary effect.

The principle of the 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, thereby converting the accurate position. One of the two magnetic fields comes from the permanent magnet in the magnetic ring, and the other comes from the excitation pulse generated by the electronic components in the sensor electronics compartment. The excitation pulse travels at the speed of sound along a waveguide filament made of magnetostrictive material inside the sensor. When intersected with the permanent magnetic field in the magnetic ring, the mechanical vibration of the waveguide wire forms a strain pulse due to the phenomenon of magnetostriction. The strain pulses are quickly detected by sensing circuits in the electronics compartment. From the moment when the excitation pulse is generated to the moment when the strain pulse is detected, the total time multiplied by the fixed speed of sound, 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 is quickly measured. Since the output signal is a true position value, rather than a proportional or re-amplified signal, there is no signal drift or change in value, and there is no need to periodically rescale 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. The sensor does not need to be re-calibrated and does not require regular maintenance.

 

EH magnetostrictive displacement / liquid level sensor standard parameters:

1. Measuring range: 50~5000mm

2. Supply voltage: +12VDC~+24VDC

3. Output form/analog signal: current 4-20mA and 0-20mA, voltage 0-5V and 0-10V, digital signal: RS485, MODBUS

4. Load capacity: voltage signal output load ≥ 4KΩ current signal output load ≤ 500Ω

5. Non-linear error: ≤0.05%FS

6. Repeatability error: ≤0.0005%FS

7. Resolution: ≤0.038mm

8. Hysteresis: ≤0.001%FS

9. Temperature stability: ≤0.002%/ºC

10. Working current: ≤16mA

11. Working pressure: continuous working pressure ≤ 35MPa (MTL built-in high pressure series)

12. Working temperature: T1: -20~+55ºC, T2: -40~+80ºC,

13. Measuring rod material: 0Cr18Ni9 (304) 316 stainless steel (special customization)

14. Electronic warehouse shell material: 0Cr18Ni9 (304) 316 stainless steel (special customization)

15. Lead mode: high temperature resistant twisted pair shielded cable (default length: 1m, can also be provided according to user requirements)

16. Shell protection grade: IP65

 

MTL2 magnetostrictive displacement sensor/liquid level wiring:

Before wiring, please check whether the power supply meets the requirements of +24VDC, and the output power of the power supply must be greater than the total power consumption of the product, calculated according to different ranges of each sensor ≤95mA. If the power supply cannot meet the requirements, please replace the power supply to ensure that the sensor can work normally.

Analog signal output wiring mode of MTL2 magnetostrictive displacement/liquid level sensor:

1. The wiring method of the waterproof connector straight out:

The sensor has five contacts: power supply positive (brown), power supply negative (black), signal output positive (blue), signal output negative (white), housing ground (shielded wire)

2. Aviation plug wiring method:

The sensor has five contacts: power supply positive (brown), power supply negative (black), signal output positive (blue), signal output negative (white), housing ground (shielded wire)

Digital signal output wiring mode of MTL2 magnetostrictive displacement/liquid level sensor:

1. The wiring method of the waterproof connector straight out:

The sensor has five contacts: positive power supply (brown), power ground (black), RS485A (blue), RS485B (white), housing ground (shielded wire)

2. Aviation plug wiring method:

The sensor has five contacts: positive power supply (brown), power ground (black), RS485A (blue), RS485B (white), shell ground (shielded wire)

 

Application fields of MTL2 magnetostrictive displacement sensor:

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 machinery cylinder position preset and feedback, engineering hoisting machinery cylinder position preset and feedback, rolling mill and other steel mill machinery cylinder position preset and feedback, bottle blower cylinder position preset and feedback, injection molding machinery cylinder position preset and feedback Preset and feedback, railway, bridge adjustment, water level detection, sluice control, wood machinery position preset and feedback, oil tank liquid level position preset and feedback, chemical container liquid level position preset and feedback, drinking water And sewage treatment system, geodetic measurement system, position preset and feedback of gate opening, measurement of oil tank level.