An optical-fibre hybrid pressure transducer employing a mechanical resonator

Transducers using optical-fibre methods for transmitting the value of a measurand can show great advantages over more conventional devices. This is particularly the case where the primary sensing element is digital in nature, such as in a resonant double-ended tuning fork (DETF) force transducer. A...

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Bibliographic Details
Published in:Sensors and actuators. A, Physical Physical, 1993-06, Vol.37, p.480-483
Main Authors: Lethbridge, J.A., Cheshmehdoost, A., France, C.M., Jones, B.E.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Mechanical instruments, equipment and techniques
Physics
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Summary:Transducers using optical-fibre methods for transmitting the value of a measurand can show great advantages over more conventional devices. This is particularly the case where the primary sensing element is digital in nature, such as in a resonant double-ended tuning fork (DETF) force transducer. A DETF has been used to produce a hybrid optoelectronic pressure transducer with such properties. Results are given and show that the device has a 2.5 bar range, a sensitivity of 525 Hz/bar, and a repeatability of 0.1% of the full-scale range.
ISSN:0924-4247
1873-3069
DOI:10.1016/0924-4247(93)80082-R