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Copyright of Journal of Mechanical & Electrical Engineering is the property of Mechanical & Electrical Engineering Magazine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Mechanical Engineering is the property of Editorial Board of China Mechanical Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Mechanical Engineering is the property of Editorial Board of China Mechanical Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Aiming at the limitation of the movement and installation of the calibrator and the assembly environment, it was difficult to use grating as the precision reference instrument for dense error sampling to achieve high precision measurement. Through the displacement calculation of the time grating angle measuring system and the analysis of the structure of the magnetic field II time grating sensor, the frequency spectrum research was carried out by using the sparse sampling error data, and the compensation model of the angle measuring system was obtained. An automatic sparse sampling and compensation method of time grating angle measurement system error based on laser interferometer was designed. 17 compensation parameters in the compensation model were solved by quantum particle swarm optimization algorithm, and the compensation model was used to compensate the error of angle measurement system. The results indicate that under the condition of sparse sampling, it can quickly and accurately realize automatic error compensation of time grating angle measurement system, and the accuracy of time grating angle measurement system can reach 2. 88 ". [ABSTRACT FROM AUTHOR]

Copyright of Journal of Signal Processing is the property of Journal of Signal Processing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)