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Prototype fibre-optic-based ultrahigh pressure remote sensor using dual-wavelength coherence reading

Prototype fibre-optic-based ultrahigh pressure remote sensor using dual-wavelength coherence reading

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© The Institution of Electrical Engineers
Published

A prototype singlemode fibre-based ultrahigh pressure remote sensor based on a Fizeau cavity using a dual-wavelength coherence reading technique has been constructed capable of remote operation at distances up to 10km. A range to resolution of ̃1.67×104:1 and an overall measurement accuracy of ̃±0.67% over a pressure range of ̃1000bar have been achieved.

Inspec keywords: fibre optic sensors; light interferometers; remote sensing by laser beam; measurement errors; pressure sensors; light coherence

Other keywords: measurement accuracy; singlemode; pressure range; Fizeau cavity; dual-wavelength coherence reading; remote operation; 10 km; range to resolution; Fizeau interferometer; fibre-optic-based ultrahigh pressure remote sensor

Subjects: Fibre optics; Optical interferometry; Fibre optic sensors; Pressure and vacuum measurement; Fibre optic sensors; fibre gyros; Pressure measurement

References

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