TY - JOUR
T1 - 光子晶体光纤温度压力传感器
AU - Liu, Tian Mu
AU - Jiang, Yi
AU - Cui, Yang
N1 - Publisher Copyright:
© 2020, Science Press. All right reserved.
PY - 2020/4/1
Y1 - 2020/4/1
N2 - An hybride optical fiber sensor is presented for the measurement of temperature and pressure in high temperature environment. The sensor is based on the configuration of an extrinsic Fabry-Perot interferometer(EFPI),which is formed by a Hollow Core Fiber(HCF) sandwiched between a section of Single Mode Fiber(SMF) and a section of of Photonic Crystal Fiber(PCF), and an intrinsic Fabry-Perot Interferometer(IFPI),which is formed by a section of PCF. Temperature measurement is achieved by thermal expansion effect and thermooptic effect, while pressure measurement is realized by the change of refractive index of gas. The demodulation of the sensor was realized by a self-made white light interferometry demodulator. In the environment of different temperature and pressure, the temperature and pressure optical fiber sensors whose cavity length is 306 μm and 1 535 μm were measured continuously. The experimental results show that the pressure sensitivity decreased with the increase of temperature. 1 460.5 nm/MPa is achieved at the temperature of 28℃ and the temperature response of the EFPI cavity is 17.4 nm/℃. The sensor is able to operate stably at temperature of 28~800℃ and pressure of 0~10 MPa.
AB - An hybride optical fiber sensor is presented for the measurement of temperature and pressure in high temperature environment. The sensor is based on the configuration of an extrinsic Fabry-Perot interferometer(EFPI),which is formed by a Hollow Core Fiber(HCF) sandwiched between a section of Single Mode Fiber(SMF) and a section of of Photonic Crystal Fiber(PCF), and an intrinsic Fabry-Perot Interferometer(IFPI),which is formed by a section of PCF. Temperature measurement is achieved by thermal expansion effect and thermooptic effect, while pressure measurement is realized by the change of refractive index of gas. The demodulation of the sensor was realized by a self-made white light interferometry demodulator. In the environment of different temperature and pressure, the temperature and pressure optical fiber sensors whose cavity length is 306 μm and 1 535 μm were measured continuously. The experimental results show that the pressure sensitivity decreased with the increase of temperature. 1 460.5 nm/MPa is achieved at the temperature of 28℃ and the temperature response of the EFPI cavity is 17.4 nm/℃. The sensor is able to operate stably at temperature of 28~800℃ and pressure of 0~10 MPa.
KW - Extrinsic Fabry-Perot interferometers
KW - Fast Fourier transform
KW - Fiber sensor
KW - Photonic crystal fiber
KW - Temperature and pressure sensor
UR - http://www.scopus.com/inward/record.url?scp=85084491350&partnerID=8YFLogxK
U2 - 10.3788/gzxb20204904.0406001
DO - 10.3788/gzxb20204904.0406001
M3 - 文章
AN - SCOPUS:85084491350
SN - 1004-4213
VL - 49
JO - Guangzi Xuebao/Acta Photonica Sinica
JF - Guangzi Xuebao/Acta Photonica Sinica
IS - 4
M1 - 0406001
ER -