期刊
MEASUREMENT SCIENCE AND TECHNOLOGY
卷 18, 期 6, 页码 1763-1767出版社
IOP PUBLISHING LTD
DOI: 10.1088/0957-0233/18/6/S15
关键词
accelerometers; fibre optic sensors; interferometric; flexural disc; remote vehicle monitoring
Mechanical principles of fibre-optic disc accelerometers (FODA) different from those assumed in previous calculation methods are presented. An FODA with a high sensitivity of 82 rad/ g and a resonance frequency of 360 Hz is designed and tested. In this system, the minimum measurable demodulation phase of the phase-generated carrier (PGC) is 10(-5) rad, and the minimum acceleration reaches 120 ng theoretically. This kind of FODA, with its high responsivity, all-optic-fibre configuration, small size, light weight and stiff shell housing, ensures effective performance in practice.
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