基于红外吸收原理的无线瓦斯巡检仪  

Wireless gas detector design based on infrared absorption principle

作　　者：沈斌[1] 秦宪礼[1] 

机构地区：[1]黑龙江科技学院安全工程学院,哈尔滨150027

出　　处：《黑龙江科技学院学报》2011年第2期108-111,共4页Journal of Heilongjiang Institute of Science and Technology

基　　金：黑龙江省重大科技攻关项目(GA04A501);黑龙江省教育厅科学技术研究项目(10551279)

摘　　要：针对传统光学瓦斯检定仪存在的量程范围小、测量精度低、不具备数据传输功能等问题，根据红外吸收气体检测原理研制一种无线接入式瓦斯巡检仪。该仪器硬件结构由红外瓦斯传感器、控制单元、LCD显示器、声光报警电路、功能键盘电路、时钟电路、无线通信模块和电源模块等部分组成，无线通信采用半双工模式的无线通信协议。实验结果表明，该瓦斯检巡仪量程为0～10％，检测精度为0．0l％，井下通信距离可达120m。它提高了瓦斯检测的量程和准确性，实现了数据的无线传送，为瓦斯巡检员远程作业定位管理系统的构建奠定了基础。This paper is aimed at an alternative to the conventional optical gas detector which suffers from smaller scale range, lower accuracy, and absence of data transmission function by developing a wire- less access-type gas detector depending on infrared absorption gas detection principle. This detector＇ s hardware consists of infrared gas sensor, control unit, LCD, sound and light alarm circuit, keyboard cir- cuit, clock circuit, wireless communication module, and power module. Wireless communication builds on half-duplex mode wireless communication protocol. The results show that the detector boasts a range from 0 to 10%, a detection accuracy of 0.01%, and an underground communication distance of up to 120 m. This gas detector, capable of a longer range and a gTeater accuracy of gas detection and the wire- less data transmission, provides a basis for developing the remote gas detection and location management system.

关 键 词：瓦斯检测 红外吸收原理 无线接入 NRF9E5 

分 类 号：TD712.55[矿业工程—矿井通风与安全]