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<h1>不分光紅外CO分析儀的各組成結(jié)構(gòu)起到的作用介紹</h1> <div id="vgbiibvsk0tz" class="nwdtl_tip"><span>更新時(shí)間：2021-12-22</span><span>瀏覽：1020次</span></div> <div id="vgbiibvsk0tz" class="nwdtl_con"> <div>　　不分光紅外CO分析儀內(nèi)設(shè)有充電線路。儀器光學(xué)部分結(jié)構(gòu)先進(jìn)，電路部分全部采用進(jìn)口大規(guī)模集成電路。體積小，可靠性高，預(yù)熱時(shí)間短，可使用戶工作效率大大提高。主要用于環(huán)保，衛(wèi)生防疫系統(tǒng)監(jiān)測(cè)公共場(chǎng)空氣中的CO濃度，也可用于環(huán)保，人防?？焖贉?zhǔn)確地對(duì)賓館，商場(chǎng)，醫(yī)院，影劇院等公共場(chǎng)所中的CO濃度進(jìn)行測(cè)定。</div><div>　　在儀器的硬件設(shè)計(jì)中紅外光源，探測(cè)器，DSP系統(tǒng)及外圍電路，信號(hào)放大電路的選擇是關(guān)鍵。本儀器紅外光源選擇了IRL715紅外光源，該光源的波長范圍為從可見的光波長到5μm，5V電壓驅(qū)動(dòng)下工作壽命可達(dá)40000h。</div><div>　　不分光紅外CO分析儀是由廢氣取樣裝置、廢氣分析裝置、廢氣濃度指示裝置和校準(zhǔn)裝置等組成，下面咱們來詳細(xì)了解一下：</div><div>　　1、廢氣取樣裝置：廢氣取樣裝置由取樣探頭、濾清器、導(dǎo)管、水分離器和泵等組成。它通過取樣探頭、導(dǎo)管和泵從車輛排氣管里采集廢氣，再用濾清器和水分離器把廢氣中的碳渣、灰塵和水分等除掉，只把廢氣送入分析裝置。</div><div>　　2、廢氣分析裝置：廢氣分析裝置由紅外線光源、氣樣室、旋轉(zhuǎn)扇輪（截光器）、測(cè)量室和傳感器等組成。該裝置按照不分光紅外線分析法，從來自取樣裝置的混有多種成分的廢氣中，測(cè)量出CO和HC的濃度，并以電信號(hào)形式輸送給廢氣濃度指示裝置。</div><div>　　3、濃度指示裝置：從廢氣分析裝置送來的電信號(hào)，在CO指示儀表上CO的濃度以體積百分?jǐn)?shù)（％）表示；在HC指示儀表上HC濃度以正己烷當(dāng)量體積的百萬分?jǐn)?shù)（10-6）表示。</div><div>　　4、校準(zhǔn)裝置是一種為了保持分析儀的指示精度，使之能準(zhǔn)確指示測(cè)量值的裝置。在此裝置中，往往既設(shè)有用加入標(biāo)準(zhǔn)氣樣進(jìn)行校準(zhǔn)的裝置，也設(shè)有用機(jī)械方式簡(jiǎn)易校準(zhǔn)的裝置。</div> 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