Encoder error source analysis method based on spectral analysis

• Main Author: AI CHENGUANG
• Format: Patent
• Language: Chinese; English
• Published: 29.12.2020
• 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

The invention discloses an encoder error source analysis method based on spectral analysis. The method comprises the following steps that data collection and analysis are carried out, specifically, data of a measured encoder are obtained through an encoder error measurement device, and the data are input into a computer for analysis; computer drawing is carried out, specifically, an error curve graph and an error spectrogram are made by the computer according to the data, and an error spectrum segment is defined; and a maximum error source is analyzed, specifically, error amplitudes of the encoder in periodic frequencies are obtained according to the error spectrogram, and a maximum error factor of the encoder is judged. According to the encoder error source analysis method based on spectral analysis, the source conditions of various errors of the encoder can be obtained so that people can conveniently analyze the generation reasons, the encoder error contribution degree condition canbe obtained, the next ste