A brief discussion on the measurement principle, characteristics application of magnetic encoders

Magnetic encoders use magnetic field sensor technology to determine angular position. A permanent magnet attached to the encoder shaft creates a magnetic field that is picked up by the sensor, resulting in a unique, positive position reading.

Magnetic encoder signal processing is the key to high functionality

The technological leap that pushes POSITAL magnetic encoders to the performance level of optical systems is based on a new generation of sensor systems. Custom Hall effect sensors combined with sophisticated signal processing algorithms running on powerful 32-bit microprocessors provide significantly improved resolution accuracy, while latency is only a few microseconds. POSITAL has also developed an incremental interface can now offer a complete encoder solution.

Application of multi-turn encoder measurement technology

POSITAL can also provide absolute multi-turn measurement based on a revolution counter system that is based on an energy harvesting system based on the Wiegand effect. The system does require gears batteries, eliminating batteries brings many benefits. Batteries have a limited service life, are heavy often contain hazardous materials. Gear devices have the disadvantage of being inherently large, complex, expensive susceptible to shock vibration. Regardless of the rotation speed, even at near zero, the energy harvesting system generates a short powerful voltage pulse that is sufficient to power the counting electronics. The result is a revolution counter that is independent of any external power supply. This technology application has been proven in the market allows maintenance-free, reliable absolute position measurement.

Advantages of magnetic encoders

1. Strong durable;

2. The mechanical equipment is simple economical - no batteries gears are required;

3. Compact design concept, suitable for installation in small space.

Magnetic encoder

The magnetic encoder is a high-tech sensor that integrates optical, mechanical electrical precision technologies is used to measure displacement angle.

Magnetic Encoder Characteristics

Small size, many varieties, full functions, high frequency response, high resolution, low power consumption, stable reliable performance, long service life.

Magnetic encoder application

It is widely used in the fields of motor, elevator, CNC machine tool, robot  other automation control fields. It is also widely used in aerospace, industrial assembly line, lifting industry wind power industry.