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A novel interferometric fiber-optic magnetometer with double digital closed-loop detection scheme

  • Beihang University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A novel interferometric fiber-optic magnetometer with double digital closed-loop detection scheme is presented in this paper. The particular design of optical circuit is performed to the conventional Michelson interferometer based fiber-optic magnetometer. The digital correlation detection technique with double closed-loop is applied to demodulate the weak magnetic field. One digital closed-loop with square-wave phase modulation is realized to eliminate the low-frequency environmental phase drift. The other is utilized to suppress the hysteresis effects of the magnetostrictive material and recover the magnetic field to be measured. Simulation results on the digital closed-loop algorithms verify the feasibility of the proposed scheme.

Original languageEnglish
Title of host publicationICEOE 2011 - 2011 International Conference on Electronics and Optoelectronics, Proceedings
PagesV4304-V4307
DOIs
StatePublished - 2011
Event2011 International Conference on Electronics and Optoelectronics, ICEOE 2011 - Dalian, China
Duration: 29 Jul 201131 Jul 2011

Publication series

NameICEOE 2011 - 2011 International Conference on Electronics and Optoelectronics, Proceedings
Volume4

Conference

Conference2011 International Conference on Electronics and Optoelectronics, ICEOE 2011
Country/TerritoryChina
CityDalian
Period29/07/1131/07/11

Keywords

  • digital closed-loop
  • digital correlation detection
  • fiber-optic magnetometer
  • square-wave phase modulation

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