Reasons for interfering magnetostrictive displacement sensors:

　　Magnetostrictive displacement sensor (liquid level), through the internal control technology of non-contact precise absolute position detection to measure the magnetic activity detected the actual displacement value of the products; the sensor with high precision and high reliability has been widely used in the actual case of tens of thousands of cases. Because of the absence of direct contact between the magnetic ring and the sensing element, the sensor can be used in very hostile industrial environments and is not susceptible to grease, liquid, dust or other contamination. In addition, the sensor uses high-tech materials and advanced electronic processing technology, so it can be applied in the environment of high temperature, high pressure and high oscillation.

　　1 、 electrostatic induction magnetostrictive displacement sensor

　　Electrostatic induction is due to the existence of parasitic capacitance between two branches of a circuit or component, so that the charge on one branch is transmitted to another branch via parasitic capacitance, so it is also called capacitive coupling.

　　2 、 electromagnetic induction magnetostrictive displacement sensor

　　When there is mutual inductance between two circuits, the change of the current in one circuit is coupled to another by magnetic field. This phenomenon is called electromagnetic induction. For example, the leakage of transformers and coils, parallel wires and so on.

　　3, the leakage of flu should be magnetostrictive displacement sensor

　　Because the components support, internal electronic circuit wiring column, printed circuit board and a capacitor internal medium or poor insulation shell, especially the application of environmental humidity sensor is large, the insulation resistance of insulator leakage current increase will lead to decline, caused by interference. Especially when the leakage current flows into the input stage of the measuring circuit, its influence is especially serious.

　　4 、 radio frequency interference magnetostrictive displacement sensor

　　Mainly is the large-scale power equipment's start, the operation stop disturbance and the higher order disturbance. Such as silicon controlled rectifier system interference, etc..

　　5, other interference magnetostrictive displacement sensors

　　In addition to the above interference, the field safety monitoring system is also vulnerable to mechanical interference, thermal interference and chemical interference due to poor working environment of the system.