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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2008.1
- 수록면
- 717 - 722 (6page)
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초록· 키워드
오류제보하기
We have proposed and demonstrated an gas-flow sensor using optical fiber bragg grating(FBG). The flow sensor has no
electronics and no mechanical parts in its sensing part and the structure is thus simple and immune to electromagnetic interference(EMI).
The FBG sensor was consisted of the sensing element and a coil heater. The metal coil was used to supply the current to the FBG. While
some currents supply to the coil, the refractive index of the FBG under the coil is changed and thus the wavelength shift of fiber optic
sensor was induced. In this work, the wavelength shift according to flow-rate was experimentally studied and was used to evaluate the
gas flow-rate in a gas tube. As a result, it was possible to measure the flow-rate in a linear range from 5 to 20 ℓ/min with a resolution
of approximately 1ℓ/min at the applied currents of 100 ㎃ and 120 ㎃. The measured sensitivities were 15.3 pm/ℓ/min for 100 ㎃ and
20.2 pm/ℓ/min for 120 ㎃.
목차
등록된 정보가 없습니다.
참고문헌 (10)
참고문헌 신청
Hung, S. T. / 2000 / The development and application of microthermal sensors with mesh-membrane supporting structure / Sensors and Actuators A 84 : 70 ~ 75
Kaltsas, G. / 2002 / Characterization of a silicon thermal gas-flow sensor with porous silicon thermal isolation / IEEE Sensors J 2 (5) : 463 ~ 475
Lim, J. / 2001 / DP flow sensor using optical fiber grating / Sensors and Actuators A 92 : 102 ~ 108
Lin, G. C. / 1998 / Thermal performance of metal-clad fiber Bragg grating sensors / IEEE Photon. Technol. Lett 10 (3) : 406 ~ 408
Nemoto, T. / 1998 / An optical fiber flow speed sensor of increased sensitivity / Elect. Eng. Jpn : 1 ~ 8
Kaltsas, G. / 2002 / Characterization of a silicon thermal gas-flow sensor with porous silicon thermal isolation / IEEE Sensors J 2 (5) : 463 ~ 475
Lim, J. / 2001 / DP flow sensor using optical fiber grating / Sensors and Actuators A 92 : 102 ~ 108
Lin, G. C. / 1998 / Thermal performance of metal-clad fiber Bragg grating sensors / IEEE Photon. Technol. Lett 10 (3) : 406 ~ 408
Nemoto, T. / 1998 / An optical fiber flow speed sensor of increased sensitivity / Elect. Eng. Jpn : 1 ~ 8
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