High-precision magnetic displacement sensor based on GMR angle sensor

The utility model provides a high-precision magnetic displacement sensor based on a GMR angle sensor, which is characterized by comprising a power supply and processing module, one end of the power supply and processing module is fixedly provided with a GMR sensor array module, and the surface of the GMR sensor array module is sleeved with a magnetic ring. The magnetic ring and the surface of the GMR sensor array module are arranged in a spaced mode, the width of the GMR sensor array module is smaller than the inner diameter of the magnetic ring, the GMR sensor array module comprises a plurality of sensors, every two adjacent sensors are arranged in a spaced mode, each sensor is electrically connected with the power source and processing module, and the power source and processing module is electrically connected with the GMR sensor array module. And the magnetic ring is fixedly connected with an external detected part, so that the magnetic ring type magnetic sensor has the advantages of being simple and reli