How it works.

The operation of the system is based on the use of a differential magnetoresistive sensor, by means of which a magnetic field gradient over a magnetized scale is recorded; in the process of displacement of the sensor along the scale, a sinusoidal or cosine signal is generated. Later, by means of built-in electronics, these analog signals are interpolated to achieve resolution up to 1 μm. As a magnetic scale, a steel strip 1.5 mm thick wich is magnetized with a certain interval. The displacement speed of the measuring head with the built-in sensor depends on the required measurement accuracy and the frequency with which it is necessary to obtain data and can vary from 0.13 to 25 m/s. The system has digital and analog outputs according to industry standards for reading data.