【摘要】：為了提高環(huán)境氣體監(jiān)測精度,降低設備維護成本需求,設計了一種多組分氣體同時或近同時在線檢測系統(tǒng)。該系統(tǒng)基于TDLAS技術(shù)采用DFB可調(diào)諧激光測量氣體濃度,能夠?qū)崿F(xiàn)760 nm O_2和2 326 nm CO混合氣體同時在線監(jiān)測。設計發(fā)射單元、接收單元等模塊,分析TDLAS可調(diào)諧激光檢測、PID溫度控制、鎖相檢測原理。結(jié)合火電廠煙道氧量濃度測試,對系統(tǒng)進行了驗證。實驗結(jié)果表明:與傳統(tǒng)的工業(yè)氣體測量裝置相比,該系統(tǒng)能獲得更高的精度、更快的響應速度以及良好的穩(wěn)定性,適應惡劣環(huán)境能力強,具有較好的實用性及可行性。
[Abstract]:In order to improve the accuracy of environmental gas monitoring and reduce the cost of equipment maintenance, a multi-component gas online detection system at the same time or near the same time is designed. Based on TDLAS technology, the DFB tunable laser is used to measure the gas concentration, which can realize the simultaneous on-line monitoring of 760 nm O 鈮，

本文編號：2498543