Active suppression method and device for angle value noise of magnetoelectric encoder

Abstract

The invention relates to an active suppression method and device for angle value noise of a magnetoelectric encoder. The method comprises the steps that a single-antipode Hall sensor measures an anglevalue signal, an analog-digital converter performs analog-digital conversion on the Hall signal, and a single-antipode angle value is obtained through a single-antipode angle calculation module; thekinematics equation neuron self-adjusting module is used for realizing self-adaptive observation of the angle value of the magnetoelectric encoder; the Kalman filtering iteration coefficient-based active updating module is used for increasing the convergence rate of neuronal angle value observation errors and improving the angle value noise suppression effect of the magnetoelectric encoder. The invention discloses a method capable of actively suppressing high-frequency noise mixed in an angle value signal of a magnetoelectric encoder, which is used for improving the output precision of the angle value of the magnetoelectric encoder.

Description

Technical field: [0001] The invention relates to a method and device for actively suppressing angle value noise of a magnetoelectric encoder, belonging to the technical field of magnetoelectric encoder manufacture. Background technique: [0002] Encoders are used to measure angles and are the core components for motor control. They are widely used in high-tech fields such as mechanical engineering, robotics, aviation, and precision optical instruments, and play a vital role in modern industry. With the accelerated development of the industrialization process, there are higher requirements for the resolution and accuracy of angular displacement sensors. At present, the angular displacement sensors widely used in high-precision servo platforms in the field of industrial control include resolvers, photoelectric encoders and magnetoelectric encoders. [0003] Among them, the optical device of the photoelectric encoder is sensitive to environmental conditions such as pollution, ...

AI Technical Summary

Problems solved by technology

[0005] However, in the field of magnetoelectric encoder application technology, the angle value of the magnetoelectric encoder will still jump back and forth within a certain range due to vibration, temperature changes, magnetic field changes, etc., resulting in the output angle value signal In order to suppress the high-frequency noise mixed in the angle value signal, the present invention proposes a method and device for actively suppressing the angle value noise of a magnetoelectric encoder by referring to this idea

Images