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Proceedings Paper

The implementation of high speed digital PSD in optically pumping magnetometers
Author(s): Jun Chen; Defu Cheng; Zhijian Zhou; Ming Ma; Chao Wang; Ruifan Hu
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Paper Abstract

The 4He optically pumping magnetometer is a kind of high resolution instrument for measuring magnetic field intensity. Its response speed cannot meet the requirements in some experiments. By analyzing many factors, Phase Sensitive Detector (PSD) which is the key part of the lock-in amplifier processes data at a very slow speed is found. To improve its performance, this paper introduces a parallel digital phase sensitive detector based on coordinate rotation digital computer (CORDIC) algorithm. The cost time of the parallel digital phase sensitive detector is only 5.1% of the previous one. It can greatly enhance the response speed of the 4He optically pumping magnetometer.

Paper Details

Date Published: 23 January 2017
PDF: 7 pages
Proc. SPIE 10322, Seventh International Conference on Electronics and Information Engineering, 103220Q (23 January 2017); doi: 10.1117/12.2265272
Show Author Affiliations
Jun Chen, Jilin Univ. (China)
Defu Cheng, Jilin Univ. (China)
Zhijian Zhou, Jilin Univ. (China)
Ming Ma, Jilin Univ. (China)
Chao Wang, Jilin Univ. (China)
Ruifan Hu, Jilin Univ. (China)

Published in SPIE Proceedings Vol. 10322:
Seventh International Conference on Electronics and Information Engineering
Xiyuan Chen, Editor(s)

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