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Product Name | Magnetostrictive level gauge |
Measuring medium | silo, pool, corrosive liquid, |
Repeatability | better than ±0.002% FS |
Output | 4~20mA, 0~5V, 0~10V, ±5V, ±10V, RS-485 |
Medium temperature | -20 ~ 150 ° C |
Rod material | 304, 316L, 304 outsourcing PTFE anti-corrosion casing |
Rang | Hard rod: 150mm~7000mm, soft rod: longer 16000mm |
power consumption | 50mA |
Installation form | threaded , connector , positioning ring, suspension |
Name | Magnetostrictive level gauge |
Product Keywords | float level transmitter,float type level transmitter,magnetic level gauge with transmitter |
The structural part of the magnetostrictive liquid level sensor is composed of a stainless steel tube (a measuring rod), a magnetostrictive wire (waveguide wire), a movable float (with a permanent magnet inside), and the like. When the sensor is operating, the circuit portion will excite a pulsed current on the waveguide wire that will generate a pulsed electromagnetic field around the waveguide wire as it propagates along the waveguide wire. A float is arranged outside the sensor rod, and the float can move up and down along the rod as the liquid level changes. There is a set of permanent magnetic rings inside the float. When the pulsed current magnetic field meets the magnetic ring magnetic field generated by the float, the magnetic field around the float changes so that the waveguide wire made of magnetostrictive material generates a torsional wave pulse at the position where the float is located. This pulse is along a fixed speed. The waveguide wire is transmitted back and detected by the detection mechanism. By measuring the time difference between the pulse current and the torsional wave, the position of the float, that is, the position of the liquid surface, can be accurately determined.
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