an incremental encoder

Abstract

The invention discloses an incremental encoder, which comprises a cylindrical turntable, a magnetic scale, a first magnetic grid reading head, a second magnetic grid reading head and a data processing circuit; On the side of the turntable, and rotate with the rotation of the cylindrical turntable; the first magnetic grid reading head and the second magnetic grid reading head are fixed at a preset distance from the magnetic scale, and the first magnetic grid reading head The second magnetic grid reading head is located on the straight line with the same diameter of the cylindrical turntable, and the first magnetic grid reading head and the second magnetic grid reading head are used to record the data information of the magnetic scale during the rotation of the cylindrical turntable. The first data and the second data are respectively obtained; the data processing circuit is used to obtain the rotation parameters corresponding to the cylindrical turntable according to the first data and the second data. The incremental encoder in this application is not only simple in structure and low in cost, but also has stronger tolerance to environmental conditions, stronger stability and wider application range.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of measuring equipment, in particular to an incremental encoder. Background technique [0002] Incremental encoder is a kind of rotation angle sensor without absolute zero, which can measure the rotation angle, angular velocity and angular acceleration of the shaft; use electronic technology to convert the pulse signal collected by the reading head into the angle, angular velocity and angular acceleration of the rotating shaft. Incremental encoders are widely used because of their relatively simple manufacturing process, relatively high angular resolution, and relatively low production costs. [0003] The most commonly used incremental encoder in the field of industrial control is the incremental photoelectric encoder. The part that records the rotation angle information in the incremental photoelectric encoder is the encoder disk, and the material of the incremental photoelectric ...

AI Technical Summary

Problems solved by technology

The part that records the rotation angle information in the incremental photoelectric encoder is the encoder disk, and the material of the incremental photoelectric encoder disk is generally glass, which has relatively high requirements for the use environment, especially in the working environment of oil, dust, vibration and high temperature Incremental optical encoders significantly degrade the performance of

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