基于ZigBee技术的无线红外CO检测仪

Wirelessinfrared CO detector based on ZigBee technology

为了减少一氧化碳(CO)爆炸给国民经济造成了巨大损伤,本文所述CO检测仪能够无线监测环境空气中痕量CO浓度。选择激射中心波长为4.8μm中红外量子级联激光器(QCL)作为光源,再配合长光程herriott气室提高了CO浓度检测下限。同时,采用Zig Bee通信技术,可将现场CO浓度数据无线传输给远端设备监控。实验表明,该仪器CO浓度检测下限为2 ppm,并且操作人员可以通过替换在不同波长下运行的中红外QCL来测量其它气体。

In order to decrease the loss of national economy causing by carbon monoxide （ CO） explosion, presen-ted is a CO detector developed for wireless monitoring of trace CO in air. Using a quantum cascade laser （ QCL） with a center wavelength at 4. 8 μm combing with long optical path herriott cell are utilized, which can enhance the CO low detection level. Meanwhile, ZigBee communication technology is utilized which is capable of transmitting on-site CO concentration date to remote monitoring equipment wirelessly. The experimental results show that the CO low detection level is 2 ppm, and operator could substitute a QCL operating at a different wavelength to measure other gases.