【摘要】：為了提高環(huán)境氣體監(jiān)測(cè)精度,降低設(shè)備維護(hù)成本需求,設(shè)計(jì)了一種多組分氣體同時(shí)或近同時(shí)在線檢測(cè)系統(tǒng)。該系統(tǒng)基于TDLAS技術(shù)采用DFB可調(diào)諧激光測(cè)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(shí)在線監(jiān)測(cè)。設(shè)計(jì)發(fā)射單元、接收單元等模塊,分析TDLAS可調(diào)諧激光檢測(cè)、PID溫度控制、鎖相檢測(cè)原理。結(jié)合火電廠煙道氧量濃度測(cè)試,對(duì)系統(tǒng)進(jìn)行了驗(yàn)證。實(shí)驗(yàn)結(jié)果表明:與傳統(tǒng)的工業(yè)氣體測(cè)量裝置相比,該系統(tǒng)能獲得更高的精度、更快的響應(yīng)速度以及良好的穩(wěn)定性,適應(yīng)惡劣環(huán)境能力強(qiáng),具有較好的實(shí)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(hào)：2498543