Share Email Print
cover

Proceedings Paper

High-precision phase shift of optic fiber sensor applied to laser dynamic-fixed distance measurement
Author(s): Yongjun Qi; Zeying Chi
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

A method about optic fiber sensor technology applied to laser dynamic-fixed distance ranging system was introduced in this paper. The laser diode was modulated by continual sine signal in the system. According to the instinctive characteristic of optic fiber that the fiber can produce high precision phase shift, the system measured the predetermined ranging distance by means of measuring the phase difference between the measuring light signal and the reference light signal caused by their different light courses. Based on the phase demodulation theory, the function of optic fiber sensor in the system was described in this paper, an important reformation of the phase demodulation system was introduced, and the evaluation of the application and development prospect of the research was given as well.

Paper Details

Date Published: 9 May 2000
PDF: 5 pages
Proc. SPIE 4077, International Conference on Sensors and Control Techniques (ICSC 2000), (9 May 2000); doi: 10.1117/12.385529
Show Author Affiliations
Yongjun Qi, Nanjing Univ. of Science and Technology (China)
Zeying Chi, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 4077:
International Conference on Sensors and Control Techniques (ICSC 2000)
Desheng Jiang; Anbo Wang, Editor(s)

© SPIE. Terms of Use
Back to Top