Encoder device

• Main Author: KUBOTA MUNEAKI
• Format: Patent
• Language: Chinese; English
• Published: 06.06.2023
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; TARIFF METERING APPARATUS; TESTING

An encoder device detects the rotation of a rotating disk (120) provided with a slit (130) by means of an encoder detection unit (140) having a plurality of light-receiving element groups necessary for generating angle data in a single light-receiving unit (142) in a prescribed arrangement, and calculates the rotation angle of the rotating disk (120) by means of an encoder processing unit (150). The encoder processing unit (150) converts a light receiving signal obtained by the plurality of light receiving element groups into angle data for one rotation, and calculates an absolute value accuracy error of the angle data for one rotation on the basis of the angle data and arrangement information relating to the arrangement. A rotation angle is calculated by correcting the absolute accuracy of the angle data of one rotation using the absolute value accuracy error, and the calculated rotation angle is output to the outside, thereby eliminating the absolute value accuracy error. 一种编码器装置，通过编码器检测部(140)检测设有狭缝(130)的旋转