砷化镓吸收式光纤温度传感技术的解调方法  

Demodulation Method about Gallium Arsenide Absorption Fiber Optic Temperature Sensing Technology

作　　者：胡昆[1,2,3] 董玉明[1,3] 傅惠南[2] 焦国华[1,3] 鲁远甫[1,3] 罗星星[1,2,3] 

机构地区：[1]中国科学院深圳先进技术研究院光电工程技术中心,广东深圳518055 [2]广东工业大学机电工程学院,广州510006 [3]香港中文大学,香港沙田999077

出　　处：《光电工程》2015年第10期61-66,共6页Opto-Electronic Engineering

基　　金：国家自然科学基金资助项目(61205101)

摘　　要：针对目前砷化镓吸收式光纤温度传感技术的数据解调方法叙述不详解且解调精度不高,本文以砷化镓光纤温度传感器的吸收光谱随温度变化的关系为基础,研究了一种基于光谱分析的砷化镓吸收式光纤温度传感技术的温度解调方法,提出一种新的数据处理流程。本文采用标准温度测量系统验证了该解调方法和数据处理流程。结果表明,在25℃~70℃区间内,测量精度小于±0.1℃;在70℃~250℃区间,测量精度小于±0.7℃。For the current of the Gallium Arsenide optical fiber temperature sensing technology not described in detail and have low demodulation precision, based on the relationship of absorption spectrum of the Gallium Arsenide fiber optic temperature sensor varying with temperature, a new data processing flow is proposed, and a temperature demodulation method is researched based on the spectral analysis of Arsenide fiber absorption optical fiber temperature sensing technology. This article used standard temperature measurement system to verify the reasonableness of the demodulation method and data processing procedure. The results show that in the range of 25℃~70℃, the measurement accuracy is less than ±0.1℃, and in the range of 70℃~250℃, the measurement accuracy is less than ±0.7℃.

关 键 词：光纤传感 温度 砷化镓 解调方法 数据处理 

分 类 号：TK311[动力工程及工程热物理—热能工程] O241[理学—计算数学]