High Sensitivity Fiber Bragg Grating Pressure Sensor Using Thin Metal Diaphragm

A high sensitivity pressure sensor design without a polymer transducer is demonstrated in this paper. The sensor uses a thin metal diaphragm as a pressure transducer instead of a polymer. The sensor is tested to a maximum pressure of 100 psi and has a sensitivity of 0.0115 nm/psi, which matches the...

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Bibliographic Details
Published in:IEEE sensors journal 2009-12, Vol.9 (12), p.1654-1659
Main Authors: Ahmad, H., Wu Yi Chong, Thambiratnam, K., Zulklifi, M.Z., Poopalan, P., Thant, M.M.M., Harun, S.W.
Format: Article
Language:English
Subjects:
Bragg gratings
Capacitive sensors
Diaphragms
Fiber Bragg grating (FBG)
Fiber gratings
Fibers
Mathematical analysis
optical pressure sensor
Optical sensors
Petroleum
Polymers
pressure sensor
Pressure sensors
Repeatability
Reproducibility
Sensors
Steel
Temperature sensors
Testing
Transducers
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Summary:A high sensitivity pressure sensor design without a polymer transducer is demonstrated in this paper. The sensor uses a thin metal diaphragm as a pressure transducer instead of a polymer. The sensor is tested to a maximum pressure of 100 psi and has a sensitivity of 0.0115 nm/psi, which matches the calculated sensitivity of 0.0127 nm/psi. The sensor is provides accurate measurement of the pressure and shows good repeatability in its readings. The sensor is also tested at the flow loop of the University of Tulsa, and shows a good match with the pressure readings of the flow loop.
ISSN:1530-437X
1558-1748
DOI:10.1109/JSEN.2009.2030388