Fiber optic interferometric force sensor with reduced temperature sensitivity

Zychowicz, Łukasz

doi:10.1117/12.2281002

Cited by 1 publication

(1 citation statement)

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“…Tang et al reported a sensitive force sensor using two identical fiber Bragg gratings (FBGs), achieving a sensitivity of (1.16 ± 0.06) × 10 3 dB/N [ 10 ]. Zychowicz presented a fiber-optic force sensor, operating in the configuration of a birefringent fiber based on a Sagnac interferometer, with a measurement range of 0–2 N [ 11 ]. Tsuda et al developed a small-diameter FBG sensor to detect the impact damage of carbon fiber reinforced plastic [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Fiber Fabry-Perot Force Sensor with Small Volume and High Performance for Assessing Fretting Damage of Steam Generator Tubes

Huang¹,

Wang²,

Li³

et al. 2017

Sensors

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Measuring the radial collision force between the steam generator tube (SGT) and the tube support plate (TSP) is essential to assess the fretting damage of the SGT. In order to measure the radial collision force, a novel miniaturized force sensor based on fiber Fabry-Perot (F-P) was designed, and the principle and characteristics of the sensor were analyzed in detail. Then, the F-P force sensor was successfully fabricated and calibrated, and the overall dimensions of the encapsulated fiber F-P sensor were 17 mm × 5 mm × 3 mm (L × W × H). The sensor works well in humid, high pressure (10 MPa), high temperature (350 °C), and vibration (40 kHz) environments. Finally, the F-P force sensors were installed in a 1:1 steam generator test loop, and the radial collision force signals between the SGT and the TSP were obtained. The experiments indicated that the F-P sensor with small volume and high performance could help in assessing the fretting damage of the steam generator tubes.

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Section: Introductionmentioning

confidence: 99%