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Title: Development of metal-ceramic coaxial cable Fabry-Pérot interferometric sensors for high temperature monitoring

Journal Article · · Sensors
DOI:https://doi.org/10.3390/s151024914· OSTI ID:1239302
 [1];  [2];  [1];  [2];  [1]
  1. Univ. of Cincinnati, Cincinnati, OH (United States)
  2. Clemson Univ., Clemson, SC (United States)
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Metal-ceramic coaxial cable Fabry-Pérot interferometric (MCCC-FPI) sensors have been developed using a stainless steel tube and a stainless steel wire as the outer and inner conductors, respectively; a tubular α-alumina insulator; and a pair of air gaps created in the insulator along the cable to serve as weak reflectors for the transmitting microwave (MW) signal. The MCCC-FPI sensors have been demonstrated for high temperature measurements using MW signals in a frequency range of 2–8 GHz. The temperature measurement is achieved by monitoring the frequency shift (Δƒ) of the MW interferogram reflected from the pair of weak reflectors. The MW sensor exhibited excellent linear dependence of Δƒ on temperature; small measurement deviations (±2.7%); and fast response in a tested range of 200–500 °C. The MCCC has the potential for further developing multipoint FPI sensors in a single-cable to achieve in situ and continuous measurement of spatially distributed temperature in harsh environments.

Research Organization:
Univ. of Cincinnati, Cincinnati, OH (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FE0022993
OSTI ID:
1239302
Journal Information:
Sensors, Vol. 15, Issue 10; ISSN 1424-8220
Publisher:
MDPI AGCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 13 works
Citation information provided by
Web of Science

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Cited By (2)

Distributed temperature sensing with unmodified coaxial cable based on random reflections in TDR signal journal December 2018
A Theoretical Study and Numerical Simulation of a Quasi-Distributed Sensor Based on the Low-Finesse Fabry-Perot Interferometer: Frequency-Division Multiplexing journal April 2017

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47 OTHER INSTRUMENTATION
metal-ceramic
coaxial cable
Fabry-Pérot interferometer
sensor
high temperature