A Fiber-Optic Sensor for Simultaneous Temperature and Pressure Measurements Based on a Fabry-Perot Interferometer and a Fiber Bragg Grating

被引:12
作者
Fadeev, K. M. [1 ,2 ]
Larionov, D. D. [1 ]
Zhikina, L. A. [1 ,2 ]
Minkin, A. M. [1 ,2 ]
Shevtsov, D., I [1 ,2 ]
机构
[1] Perm Sci Ind Instrument Making Co, Perm 614990, Russia
[2] Perm Natl Res Polytech Univ, Perm 614990, Russia
关键词
Temperature measurement - Etching - Pressure measurement - Quartz - Fiber optic sensors;
D O I
10.1134/S0020441220050024
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper presents a sensor for simultaneous pressure and temperature measurements, which is made entirely of quartz components and uses a Fabry-Perot interferometer and a fiber Bragg grating (FBG). This combination allows simultaneous temperature and pressure measurements, as well as the reduction of the contribution of temperature to the pressure measurement. The sensitive element is a quartz-glass membrane manufactured by etching. The sensitivity of the sensor to the pressure is 50 nm/bar; the sensitivity to the temperature is 4.6 nm/degrees C on the Fabry-Perot interferometer side and 10 pm/degrees C on the FBG side. It has been shown that the FBG can be used as a thermal compensating element.
引用
收藏
页码:543 / 546
页数:4
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