一种实用的光电检测电路设计与实现  

Design and Realization of Practical Photoelectric Detection Circuit

作　　者：胡丹[1] 张冈[1] 撒继铭[2] 

机构地区：[1]华中科技大学机械科学与工程学院,湖北武汉430074 [2]武汉理工大学信息工程学院,湖北武汉430070

出　　处：《仪表技术与传感器》2010年第11期79-81,84,共4页Instrument Technique and Sensor

基　　金：国家自然科学基金(50974062)

摘　　要：气体检测在人类的日常生活和生产过程中非常重要。光纤传感器采用光而不是电作为信息载体,因此不存在产生电火花的安全隐患问题。光纤气体传感器中,吸收型光纤气体传感器更具有灵敏度高,响应快,抗温等优点。然而,吸收型光纤气体传感器也存在信号微弱,抗干扰能力差等缺点。文中基于对光纤气体传感器系统的研究,提出了一套完整的光电检测电路的设计与实现方法。该电路具有电路结构简单,实用性强,可移植性强等优点,广泛运用于光纤气体传感领域。实验验证了该设计的正确性、精确性、实用性和可靠性。Gas detection is playing a very important role on daily life and production of humankind.Optical fiber sensor transmits information by light instead of electricity,so it will not cause the security risk of EDM.Among all spectrums of optical fiber gas sensor,absorption spectrum has more obvious advantages such as higher sensitivity,quicker response,anti-temperature.However,it also has such shortcomings as weaker signal,and bad anti-disturb capacity.This paper proposed a complete method on the designing and realizing of photoelectric detection circuit,based on the research on the optical fiber gas sensor system.Having such advantages as simplicity of circuit structure,strong practicality and strong portability,the design is applied widely in the filed of optical fiber gas sensor.The experiment verifies the correctness,accuracy,practicality and reliability of the design.

关 键 词：气体检测 光纤传感器 吸收型光纤气体传感器 光电检测电路 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]