Research on grating signal processing based on DSP

Yong Xu; Chaoming Li; Xinrong Chen; Qing Xu; Haotian Wang; Zhe Huang

doi:10.1117/12.2573371

10 October 2020 Research on grating signal processing based on DSP

Yong Xu, Chaoming Li, Xinrong Chen, Qing Xu, Haotian Wang, Zhe Huang

Proceedings Volume 11551, Holography, Diffractive Optics, and Applications X; 115511E (2020) https://doi.org/10.1117/12.2573371
Event: SPIE/COS Photonics Asia, 2020, Online Only

Conference Poster

Abstract

Grating displacement measurement technology has been widely used in the field of position detection technology. In order to accurately measure the linear displacement of an object, a contactless displacement measurement technique is proposed. The single grating displacement sensing structure is adopted, and the interference fringes are collected by the linear array CCD camera driven by FPGA (field programmable gate array). The collected grating fringe signals are denoised, counted and subdivided based on DSP (digital signal processor). In this method, the subsequent circuit is simplified since the subdivision and digitization are completed with image capture by CCD simultaneously and the automatic real-time measurement of the target to be measured is realized. At the same time, the precision of the system is analyzed deeply.

Citation Download Citation

Yong Xu, Chaoming Li, Xinrong Chen, Qing Xu, Haotian Wang, and Zhe Huang "Research on grating signal processing based on DSP", Proc. SPIE 11551, Holography, Diffractive Optics, and Applications X, 115511E (10 October 2020); https://doi.org/10.1117/12.2573371

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available