Single-ring five-bit absolute coding disc

Abstract

The invention relates to a single ring five digit absolute coding disk, which belongs to a coding disk in the technical field of photoelectric detection. The technical problem to be solved is to provide the single ring five digit absolute coding disk, and the technical proposal to solve the technical problem is that the single ring five digit absolute coding disk comprises a coded disk and a slit disk which are parallelly arranged on a main shaft of an encoder and kept at a certain distance from each other; the coding disk is rotated along with the main shaft; the coded disk is provided with a circle of code channel which is divided into two sections, namely a non light pass zone from 0 to 180 DEG and a light pass zone from 180 to 360DEG; and the same circumference of the slit disk is uniformly distributed with sixteen slits in the 0 to 180 DEG zone, the included angle between two adjacent slits is 11.25 DEG, the width of the slits is all 0.06 millimeter, and the diameter of the code channel on the coded disk is the same as that of the slits on the slit disk.

Description

technical field [0001] The invention belongs to a single-circle five-position absolute encoder disk related to the technical field of photoelectric testing. Background technique [0002] The photoelectric shaft encoder is a representative photoelectric sensor for angular displacement and angular velocity measurement, and the encoder disc is the core component of the photoelectric shaft encoder for data acquisition, which is composed of a code disc and a slit disc. The so-called absolute code disc means that the code track of the code disc is matched with the slit of the slit disc, and several reading heads are used to take out the electrical signals matched and arranged between the code disc and the slit disc, and after decoding, they are processed into The same periodic binary codes as the disc, these codes represent the absolute position information of the code disc. [0003] With the development and needs of industrialization and high technology, the miniaturization requ...

AI Technical Summary

Problems solved by technology

[0007] The code disc 1 and the slit disc 2 are matched, and the diameters of the corresponding circles are equal. The formed matrix code disc can only output four-digit codes in the first two circles of the code track. At the same time, the radial dimension of the encoder is too large

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