A micro-sized incremental angle sensor and its measurement method for fast homing

Abstract

The invention relates to the technical field of angle sensors, and provides a micro-miniature incremental angle sensor for fast zero-seeking, comprising: an input shaft, a light source, a slit disc, an encoder disc, a receiving plate and a sensor base; the input shaft is arranged on the sensor base; above the center of the base; the top end of the input shaft is used to connect with the shaft to be measured, and the bottom end of the input shaft is fixedly connected to the encoder disk; the light source, the slit disk and the receiving plate are respectively fixed on the sensor base, the Above the light source are a slit disk, an encoding disk and a receiving plate in sequence; the slit disk is provided with a first light-passing slit and a second light-passing slit corresponding to the position corresponding to the receiving lamp on the receiving plate; A first light-passing code track is provided at a radially corresponding position to the first light-passing slit on the slit disk, and a second light-passing code track is provided at a radially corresponding position to the second light-passing slit on the slit disk. The invention can complete the zero-seeking function in the shortest time and can avoid hitting the mechanical limit.

Description

technical field [0001] The invention relates to the technical field of angle sensors, in particular to a micro-sized incremental angle sensor for fast zero-seeking and a measuring method thereof. Background technique [0002] Incremental angle sensors should be zeroed first when working. After the sensor is reset, it outputs a random incremental angle value. When the angle sensor rotates clockwise or counterclockwise through the zero angle, an absolute zero signal will be generated, and the angle value will be cleared. After completing the zero search, the sensor will start to work normally, and Computes the absolute angular position. [0003] figure 1 It is a schematic diagram of the homing principle of the incremental angle sensor in the prior art. Such as figure 1 As shown, the homing method of the traditional incremental angle sensor is as follows figure 1 As shown, in addition to the zero position signal, an additional positive limit signal La and negative limit si...

AI Technical Summary

Problems solved by technology

[0008] The present invention mainly solves the technical problems of poor zero-seeking efficiency and low efficiency of traditional incremental angle sensors, and proposes a micro-miniature incremental angle sensor and its measurement method for fast zero-seeking, which are generated by combining two zero-position signals. Absolute zero position signal, after the angle sensor is reset, the zero position signal has the function of indicating the position and orientation of the zero position, the system controls the rotation direction according to the zero position signal, the homing function can be completed in the shortest time, and the collision limit can be avoided

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