An Active Stabilization Technique Of A Homodyne Interferometer Based On PTDC For High Frequency Hydrophone Calibration

DOI

10.2991/icmeis-15.2015.59How to use a DOI?

Keywords

active stabilization; homodyne interferometry; high frequency hydrophone calibration

Abstract

Under plane wave conditions, the ultrasonic pressure could be derived by the detected displacement with a stabilized homodyne interferometer, and then compare with the voltage output of the hydrophone, it could calibrate the hydrophone. Generally, what is noteworthy is that the disfigurement of the homodyne interferometer easily influenced by the low frequency noise in environment such as acoustic noise and water surface agitation. As a result, signal faded. Based on direct current phase tracking, an active stabilization technique was devised to maintain the quadrature working point for the interferometer. While the interferometer stabilization was maintained, most of environmental noises could be effectively compensated, and the ultrasonic signal fading problem could be figured out. An active stabilization technique of a homodyne type Michelson interferometer for calibrating the high frequency hydrophone is described in this article.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Shuaishuai Chang
AU  - Haijiang Zhu
AU  - Ping Yang
PY  - 2015/08
DA  - 2015/08
TI  - An Active Stabilization Technique Of A Homodyne Interferometer Based On PTDC For High Frequency Hydrophone Calibration
BT  - Proceedings of the 3rd International Conference on Mechanical Engineering and Intelligent Systems (ICMEIS 2015)
PB  - Atlantis Press
SP  - 317
EP  - 324
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmeis-15.2015.59
DO  - 10.2991/icmeis-15.2015.59
ID  - Chang2015/08
ER  -