magnetostrictive liquid level transmitter working principle

Email: sales01@cxflowmeter.com

whatsapp: 008618049841995

The working principle of magnetostrictive level gauge is mainly based on magnetostrictive effect, which is a physical phenomenon that

 when ferromagnetic material is subjected to external magnetic field, its length will change slightly. The following is a detailed explanation

 of the working principle of magnetostrictive level gauge:

Component composition

Magnetostrictive level gauge mainly consists of the following key components:

Electronic transmitter: responsible for generating and sending current pulses, and receiving and processing the returned distorted wave

 signals.

Float: built-in permanent magnet, moves up and down with the rise and fall of the measured liquid level, and its magnetic field interacts

 with the magnetic field in the probe rod.

Probe rod (also called waveguide or probe rod): made of special magnetostrictive material, used to transmit current pulses and receive 

the returned distorted wave signals.

Workflow

Start pulse: The electronic transmitter periodically sends a short current pulse to the probe rod. This pulse generates a magnetic field

 inside the probe rod that propagates rapidly along the rod.

Magnetic field interaction: The float moves up and down with the rise and fall of the measured liquid level. The permanent magnet inside

 the float forms a static magnetic field around it. When the pulsed magnetic field generated by the transmitter meets the static magnetic

 field of the float, a magnetostrictive effect is induced at the location where the two interact, thereby generating a tiny distortion

 wave (or echo pulse) at that point.

Signal detection: This distortion wave propagates in the opposite direction along the probe rod at a fixed ultrasonic speed. When it reaches

 one end of the probe rod, the electronic transmitter can detect the returning distortion wave signal.

Time measurement and calculation: By accurately measuring the time difference between the emission of the initial pulse and the reception

 of the distortion wave signal, and then according to the speed of the distortion wave propagating in the material, the actual distance of 

the float (and liquid level) relative to the bottom of the sensor can be calculated, thereby determining the height of the liquid level.

Application field

Magnetostrictive level gauges are widely used in various industrial fields for level measurement due to their high accuracy, high stability, 

high reliability and low sensitivity to environmental changes, including but not limited to the chemical, petroleum, food processing and 

water treatment industries. In addition, it also supports remote monitoring and automatic control system integration, easy maintenance

 and long service life.

In summary, magnetostrictive level meter realizes accurate measurement and monitoring of liquid level by utilizing magnetostrictive

 effect and precise time measurement technology.

If you want to know the specific selection and quotation of magnetostrictive level transmitter, 

please contact CIXIFM winny: 

Email: sales01@cxflowmeter.com

whatsapp: 008618049841995