Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Polyimide Film-coated Side-polished Optical Fiber Humidity Sensor

폴리이미드가 코팅된 측면 연마 광섬유를 이용한 습도 센서

  • 김광택 (호남대학교 전자공학과) ;
  • 양재창 (호남대학교 전자공학과)
  • Received : 2022.11.11
  • Accepted : 2023.01.26
  • Published : 2023.01.31
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Abstract

We investigated a humidity sensor based on a polyimide-coated side-polished optical fiber. The polyimide film absorbed moisture, causing the resonant wavelength of the sensor to shift to a longer wavelength owing to the changes in the optical properties of the film. The experimental results showed that the resonant wavelength of the device shifted by 17-18 nm when relative humidity changed from 30% to 90%.

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References

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