Abstract: The application of detecting SF6 leaking by IR laser imaging system has an important signification. If the emission line of the grating tunable laser is right within the absorb range of SF6, the reflecting line can be received by the IR detector and the system will display the SF6 leaking situation. SF6 gas will absorb more IR spectrum around the center of 10.56μm, so high stability laser output and single output frequency are requested.
~ l~ai>/ Key words: IR imaging, gas sensing, application of spectrum, SF6, CO2 laser
1/>#L6VAZ ^PY*INv 摘 要：激光紅外光學(xué)成像技術(shù)應(yīng)用于探測SF6氣體泄漏具有重要的現(xiàn)實意義，利用光柵可調(diào)co2激光器使輸出譜線正好在SF6吸收范圍，紅外探測器就能接收反射回的譜線從而顯示氣體泄漏狀況；SF6氣體對以10.56μm為中心的紅外光譜吸收率非常高，要求激光輸出穩(wěn)定性好，且輸出單一頻率。
__\Tv>Y LHjGlBy 關(guān)鍵字：紅外成像,氣體探測,光譜應(yīng)用,SF6 ,CO2激光器
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