中文摘要：

一个光纤维气体传感器主要由二部分组成：光部分和察觉电路。在为察觉电路调试，光部分通常担任信号来源。处于调试条件，光部分能被许多因素容易影响，例如导致为激光的波长和紧张的不稳定性的周围的温度或开车电流的变化；为双横梁的传感器，光纤维的不同拐弯和压力将导致紧张和阶段的变化；从描准仪， coupler，和在系统的另外的光设备的紧张噪音将也导致光部分的杂质基于的信号来源。以便戏剧性地改进察觉电路的调试效率并且弄短研究和开发的时期，这篇论文描述模拟信号来源，由一块单个芯片组成微型电子计算机(SCM ) ，一个放大器电路，和一个 voltage-to-current 变换电路。认识到光纤维气体传感器的快速的调试察觉电路而不是光部分能被用来基于的信号来源。这模拟信号来源与许多另外的优点表演很好，例如简单操作，小尺寸，和轻重量。

英文摘要：

An optical fiber gas sensor mainly consists of two parts： optical part and detection circuit. In the debugging for the detection circuit, the optical part usually serves as a signal source. However, in the debugging condition, the optical part can be easily influenced by many factors, such as the fluctuation of ambient temperature or driving current resulting in instability of the wavelength and intensity for the laser; for dual-beam sensor, the different bends and stresses of~the optical fiber will lead to the fluctuation of the intensity and phase; the intensity noise from the collimator, coupler, and other optical devices in the system will also result in the impurity of the optical part based signal source. In order to dramatically improve the debugging efficiency of the detection circuit and shorten the period of research and development, this paper describes an analog signal source, consisting of a single chip microcomputer （SCM）, an amplifier circuit, and a voltage-to-current conversion circuit. It can be used to realize the rapid debugging detection circuit of the optical fiber gas sensor instead of optical part based signal source. This analog signal source performs well with many other advantages, such as the simple operation, small size, and light weight.