光纤法珀温度传感器的设计_测控专业.doc

摘要:由于光纤传感器具有较其它的传感器有独特的优点，近几年来，光纤传感器与测量技术发展成为仪器仪表领域新的发展方向。光纤法珀温度传感器由于具有体积小、重量轻、灵敏度高、耗电少、不受电磁场的干扰、绝缘性能好等优点，具有很大的开发研究价值。本课题设计并制作了一种新型的光纤法珀温度传感器。

　　　本文首先阐述了光纤法珀温度传感器的测量原理和传感器的优点。再结合光纤法珀温度传感器的原理，具体从光纤法珀传感器材料的选择上进行介绍并说明了传感器的制作过程。接着推导了法珀腔长随温度变化的函数关系。然后，简单分析了光纤法珀传感器的解调原理，并利用光纤法珀传感器的解调原理设定了法珀传感器的初始腔长。

关键词：温度传感器  光纤  测量原理  法珀腔长

ABSTRACT:Due to the fiber optic sensor which compare with other sensor has a unique advantage，in recent years，optical fiber sensor and measuring technology become a new development direction in the field of instrumentation. Fiber optic temperature sensor has small volume， light weight，high sensitivity，less consumption，not affected by the interference of electromagnetic field，good insulation quality and great value of development.This topic is the design and construction of a new kind of optical F-P temperature sensor.

　　　Firstly，this article elaborated the advantages of the F-P senor and the principle of measurement of the temperature sensor.Then combine with the principle of optical F-P temperature sensor，illustrate the choice of optical  F-P temperature sensor materials concretely and shows the manufacturing operation of senor. Then the method is deduced cavity length with a function of temperature change.Then,analyse demodulation principle of F-P sensor simply.And use the demodulation principle of optical F-P sensor setting the the initial length of cavity of  F-P sensor.

Keywords:  temperature sensor；optical fiber； principle of measurement； F-P cavity length