便携式硫化氢检测仪  

Design of Portable Detection Instrument for Hydrogen Sulfide

作　　者：朱亮[1] 严龙[1] 邹兵[1] 姜素霞[1] 

机构地区：[1]中国石油化工股份有限公司青岛安全工程研究院,山东青岛266071

出　　处：《仪表技术与传感器》2011年第3期31-33,共3页Instrument Technique and Sensor

摘　　要：针对天然气开采利用过程中存在的H2S泄漏检测问题,利用集成了A/D转换器的高性能微处理器MSP430F249为核心,设计了便携式H2S检测仪,重点介绍了设计原理及软硬件实现方法。用电化学式H2S传感器将现场H2S气体浓度转换为模拟信号输出,数字式温湿度传感器将现场温湿度转换为数字信号输出,MSP430F249处理这些信号并实时显示结果,最终完成检测和报警功能。实验结果表明该检测仪具有测量精度高、功耗低、携带方便等特点。In terms of the Hydrogen Sulfide leak detection problems in the process of mining and using of natural gas,this paper designed a portable detection instrument for Hydrogen Sulfide,based on high performance MSP430F249 which integrated A/D converter.It introduced emphatically the design principle and the method to realize software and hardware.Converting field concentration of Hydrogen Sulfide gas to analog signal output by using electrochemistry Hydrogen Sulfide sensor,converting field temperature and humidity to digital signal output by using digital sensor,MSP430F249 processed these signals,displayed the real-time results and finally completed functions of detection and alarm.The results show that the detection instrument has high accurate,low power consumption and portable.

关 键 词：H2S传感器 MSP430F249 电化学原理 SHT11 便携式 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]