Split encoder capable of guaranteeing assembly precision

Abstract

A split encoder capable of guaranteeing assembly precision comprises an encoder main shaft and a base, the encoder main shaft is arranged in the base, a code disc is fixedly arranged on the encoder main shaft, and at least three unit basic function blocks are arranged on the base in the circumferential direction; any unit basic function block comprises a PCBA function block, a digital memory, a semiconductor-based processing block, a sensing read head and a sensing read head assist device, in the same unit basic function block, the PCBA function block is arranged above the code disc, the sensing read head is arranged on the lower side of the PCBA function block, and the sensing read head assist device is arranged below the code disc. According to the invention, a plurality of sensing read heads with planes forming angles mutually are installed in a split manner, so that the coaxiality jerk value can be mutually corrected, the influence of coded disc installation eccentricity, shafting shaking and temperature change on the encoder is reduced, the strict limitation on the installation and debugging of a single sensing read head is eliminated, and the detection precision is improved. Coaxiality jerk value can be measured, eccentricity can be detected, eccentricity early warning information can be sent, and the angle measurement precision of the encoder is improved.

Description

technical field [0001] The invention relates to the field of physics, in particular to a measuring device, in particular to a split encoder capable of ensuring assembly accuracy. Background technique [0002] Absolute encoder is a high-precision sensor for measuring angle. It has the advantages of strong resolution, high measurement accuracy and reliable operation. It is the most commonly used position sensor for measuring the angular position of the shaft. Absolute encoder is a sensor product integrating machinery and electronics. Unlike some types of sensors that do not require mechanical precision and mainly rely on electronic performance and technology to improve the accuracy of the entire sensor, absolute encoders require high-precision mechanical design, processing, assembly, and high-precision code discs. And the complex processing of electronic scheme and software algorithm can ensure the accuracy of the whole encoder. The accuracy of the encoders in the prior art ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a split encoder capable of ensuring assembly accuracy. The split encoder capable of ensuring assembly accuracy should solve the technical problem that the encoders in the prior art cannot guarantee assembly accuracy

Images