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中船重工安譜（湖北）儀器供應(yīng)</p><div id="7m8m4qn" class="leftbox clearfix"><h1>北京便攜式CO分析儀**** 誠(chéng)信服務(wù) 中船重工安譜（湖北）儀器供應(yīng)</h1><div id="bkhe27q" class="proBig"><div id="srdfpln" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/anpuyq/637127161010039062/4427614.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="g3gqspw" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/anpuyq/637127161010039062/4427614.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="eyqspro" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>湖北省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>北京便攜式CO分析儀****,便攜式CO分析儀</p><p><span>***更新：</span>2020-10-19 13:04:29</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="edkrik2" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">中船重工安譜（湖北）儀器有限公司</a></p><p><span>聯(lián)系人：</span>李雪</p><p><span>郵箱: </span>lx@hzgli.com</p><p><span>電話: </span>19171399710</p><p><span>傳真: </span>0571_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0571-86094492</p><p><span>地址: </span>高新區(qū)蘭臺(tái)路13號(hào)</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="gk3ijah" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="crogiug" class="box"><p><p> </p> <p> <br /> </p> <p> 一氧化碳(CO)是**為常見(jiàn)的一種0有害的可燃可爆性氣體，它給工業(yè)安傘生產(chǎn)帶來(lái)了巨大的危害。因此研制一種能夠?qū)崟r(shí)準(zhǔn)確地測(cè)量一氧化碳?xì)怏w濃度的氣體檢測(cè)儀是非常必要的。目前應(yīng)用于一氧化碳?xì)怏w的檢測(cè)方式主要有氣相色譜法、光干涉法、半導(dǎo)體氣體傳感器、紅外光譜吸收式。一等，以上四種一氧化碳?xì)怏w濃度測(cè)量方法各有優(yōu)缺點(diǎn)。然而紅外光譜吸收法表現(xiàn)出更多的優(yōu)點(diǎn)，紅外光譜吸收式的基本原理L亂為：將窄帶光源波長(zhǎng)對(duì)準(zhǔn)被測(cè)氣體某一吸收峰，用正弦信號(hào)對(duì)激光波長(zhǎng)進(jìn)行調(diào)制，調(diào)制后的激光通過(guò)被測(cè)氣體，由于氣體的吸收效應(yīng)，波長(zhǎng)調(diào)制轉(zhuǎn)換為強(qiáng)度調(diào)制，當(dāng)激光中心波長(zhǎng)對(duì)準(zhǔn)氣體吸收峰的中心處，北京便攜式CO分析儀****，輸出光包含有調(diào)制頻率的二次諧波信號(hào)，而且信號(hào)幅度正比于氣體的濃度。通過(guò)提取吸收信號(hào)的二次諧波，便可實(shí)現(xiàn)氣體濃度的測(cè)量。與差分吸收法相比，諧波檢測(cè)法具有更高的分辨率。本文采用紅外光譜吸收式來(lái)實(shí)現(xiàn)對(duì)一氧化碳?xì)怏w濃度的測(cè)量。在一氧化碳?xì)怏w檢測(cè)儀的設(shè)計(jì)過(guò)程中，北京便攜式CO分析儀****，北京便攜式CO分析儀****，將拉格朗日插值思想應(yīng)用于數(shù)據(jù)處理。本文主要對(duì)一氧化碳?xì)怏w檢測(cè)儀中算法的設(shè)計(jì)進(jìn)行研究，對(duì)數(shù)據(jù)進(jìn)行比較好化處理。中船重工安譜儀器生產(chǎn)的GFC-500A便攜式紅外CO分析儀采用非分光紅外光譜技術(shù)，質(zhì)量可靠。北京便攜式CO分析儀****</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京便攜式CO分析儀****,便攜式CO分析儀" src="http://tyunfile.71360.com/UploadFile/anpuyq/637127161010039062/4427614.png"></div><p> 一氧化碳¨o是瓦斯中主要的有害氣體，無(wú)色、無(wú) 味、可燃、比重較空氣輕，容易引起人的窒息死亡。當(dāng) 空氣中一氧化碳的濃度達(dá)到12．5％一74％時(shí)，遇到火花就會(huì)發(fā)生劇烈。生活中，煤氣灶及家用天然氣漏氣、煤爐燃燒不充分等都會(huì)產(chǎn)生一氧化碳，工業(yè)生產(chǎn)的從業(yè)者如煤礦工人等都會(huì)接觸到一氧化碳。 </p> <p> 傳統(tǒng)的電化學(xué)一氧化碳傳感器利用氣體在敏感電極表面發(fā)生氧化反應(yīng)，產(chǎn)生電流并通過(guò)外電路流經(jīng)電極的原理來(lái)檢測(cè)氣體濃度。長(zhǎng)期以來(lái)，電化學(xué)CO傳感器因其靈敏度高、經(jīng)濟(jì)可靠等特點(diǎn)而得到迅速發(fā)展。但是由于其對(duì)氣體的選擇性差，很容易中毒等，導(dǎo)致其誤報(bào)的概率大。該紅外一氧化碳檢測(cè)儀基于氣體對(duì)紅外光選擇性吸收的原理，根據(jù)檢測(cè)紅外光被吸收的程度，判定被測(cè)氣體的濃度值∞3，避免了中毒(指?jìng)鞲衅鞔呋瘎┦?活力，不能與被測(cè)試氣體發(fā)生反應(yīng)而產(chǎn)生電信號(hào)的現(xiàn)象)。采用32位DSP作為**處理器，處理速度快、實(shí)時(shí)性好、精確度高，能夠準(zhǔn)確測(cè)量出一氧化碳濃度值，ZigBee無(wú)線收發(fā)數(shù)據(jù)的設(shè)計(jì)，克服了實(shí)際線路損壞的影響，使檢測(cè)儀的實(shí)用性更強(qiáng)，為煤礦的安全生產(chǎn)提供了重要保證。北京便攜式CO分析儀****中船重工安譜生產(chǎn)的便攜式紅外CO分析儀質(zhì)量好，廠家直銷。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京便攜式CO分析儀****,便攜式CO分析儀" src="http://tyunfile.71360.com/UploadFile/anpuyq/637127161997363281/3180751.png"></div><p> 隨著氣體濃度檢測(cè)傳感器的小型化，氣體濃度檢測(cè)儀器的集成程度也越來(lái)越高，儀器體積**降低。安全氣體濃度檢測(cè)設(shè)備目前向著小型化、微型化發(fā)展，智能化傳感器的智能化就是在其中嵌入處理器，儀器的智能化是目前大多數(shù)儀表的發(fā)展方向，氣體濃度檢測(cè)儀也正朝著這個(gè)方向邁進(jìn)，智能化比將成為未來(lái)氣體濃度檢測(cè)儀的發(fā)展方向。 </p> <p> 中船重工安譜GFC-500A便攜式紅外CO分析儀采用非分光紅外光譜技術(shù)。 </p> <p> 技術(shù)指標(biāo) </p> <p> 檢測(cè)原理非分光紅外光譜技術(shù)（NDIR)檢測(cè)種類CO檢測(cè)范圍0～50ppm檢測(cè)精度≤±·S重復(fù)性≤≤90秒預(yù)熱時(shí)間≥30分零點(diǎn)漂移≤·S/24h量程漂移≤±·S/24h單位ppm或mg/m3，可切換氣體流量（1～）L/min </p> <p> 尺寸247mm×211mm×118mm </p> <p> 重量≤Kg </p> <p> 產(chǎn)品優(yōu)勢(shì) </p> <p> ◆精度高、穩(wěn)定性好、抗干擾能力強(qiáng)； </p> <p> ◆支持內(nèi)部催化自動(dòng)校零和外部標(biāo)氣手動(dòng)校零兩種方式； </p> <p> ◆內(nèi)置鋰電池供電，工作時(shí)間長(zhǎng)達(dá)5小時(shí)，可供戶外使用； </p> <p> ◆儀器內(nèi)置存儲(chǔ)器，可存儲(chǔ)5000組數(shù)據(jù)，也可將數(shù)據(jù)導(dǎo)出到PC機(jī)； </p> <p> ◆提供RS485接口，可用于和上位機(jī)通信； </p> <p> ◆具有聲光報(bào)警功能，報(bào)警閾值可調(diào)。 </p> <p> 應(yīng)用領(lǐng)域GFC-500A便攜式紅外CO分析儀可廣泛應(yīng)用于環(huán)境監(jiān)測(cè)、疾控、化工、石油、倉(cāng)儲(chǔ)等領(lǐng)域。 </p><p> 樣品的分析取樣點(diǎn)要選擇在氣體具有代表性的地點(diǎn)，才能測(cè)得真實(shí)的濃度，用采樣袋采樣前先用現(xiàn)場(chǎng)空氣洗 3 - 4 次，然后再采樣，并保證足夠的采氣量（至少 500ml），并防止漏氣，被測(cè)氣路要盡可能地短，以減少滯后時(shí)間。為避免污染，樣品氣體要經(jīng)過(guò)玻璃纖維膜去除顆粒物，并干燥后再進(jìn)入儀器。結(jié)果計(jì)算每一臺(tái)紅外分析器都附有一條分析信號(hào)輸出特性曲線（mA - ppm 曲線）記錄儀表上指示的電流 mA 值，在曲線上可查出相應(yīng)的 ppm 值，再通過(guò) </p> <p> 公式 CO（mg / m3）= l. 25C（ppm）計(jì)算出需要的**終結(jié)果?；蛘页?ppm 值與 mA 值的函數(shù)關(guān)系，進(jìn)而換算 mg / m3 值與 mA 的函數(shù)關(guān)系，可通過(guò)輸出 mA 值直接計(jì)算出 mg / m3 值 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京便攜式CO分析儀****,便攜式CO分析儀" src="http://tyunfile.71360.com/UploadFile/anpuyq/637127043693906250/9264575.jpg"></div><p> BP神經(jīng)網(wǎng)絡(luò)簡(jiǎn)介誤差反向傳播(ErrorBackpagation，BP)神經(jīng)網(wǎng)絡(luò)是20世紀(jì)80年代中后期由Rumelhart、lelland等科學(xué)家成立的ParallelDistributedcession小組提出的[30]，它能學(xué)習(xí)和儲(chǔ)存大量輸入-輸出模式的映射關(guān)系，已經(jīng)證明，BP神經(jīng)網(wǎng)絡(luò)不再局限在處理簡(jiǎn)單的線性問(wèn)題上，更具有實(shí)現(xiàn)任何復(fù)雜的非線性映射的能力，而且無(wú)需事前揭示描述這種映射關(guān)系的數(shù)學(xué)模型或方程，特別適合求解內(nèi)部機(jī)制復(fù)雜的問(wèn)題。解決了多層神經(jīng)網(wǎng)絡(luò)的學(xué)習(xí)問(wèn)題，極大地促進(jìn)了神經(jīng)網(wǎng)絡(luò)的發(fā)展，成為目前應(yīng)用*****的神經(jīng)網(wǎng)絡(luò)模型之一。在Lambert-Beer定律中的吸收系數(shù)&是一個(gè)非常復(fù)雜的量，它受環(huán)境溫度、壓強(qiáng)、氣體種類、入射光波長(zhǎng)等因素的影響，并且是非線性關(guān)系，無(wú)法獲得準(zhǔn)確的解析式，如果在測(cè)量co2氣體濃度時(shí)將環(huán)境溫度、壓強(qiáng)等看成理想狀態(tài)，吸收系數(shù)&考慮成定值，貝IJ失去了在實(shí)際應(yīng)用中的意義。與大多數(shù)紅外co2氣體濃度測(cè)量裝置采用**小二乘法對(duì)不同環(huán)境下co2氣體的測(cè)量結(jié)果進(jìn)行直線、多項(xiàng)式或**擬合不同，本論文考慮到BP神經(jīng)網(wǎng)絡(luò)在解決非線性問(wèn)題上具有獨(dú)特的優(yōu)越性，決定采用這一種新型的建模方案來(lái)建立一個(gè)“三輸入-單輸出”模型。將紅外探測(cè)器輸出的參考通道信號(hào)、測(cè)量通道信號(hào)。北京便攜式CO分析儀****</p><p style="text-indent:25px">北京便攜式CO分析儀****</p><p> 中船安譜（湖北）儀器有限公司研發(fā)生產(chǎn)的GFC-500A便攜式紅外CO分析儀采用非分光紅外光譜技術(shù)，基本原理是CO分子對(duì)特定紅外光具有吸收效應(yīng)，基本關(guān)系符合Beer-Lambert定律。該儀器通過(guò)設(shè)計(jì)穩(wěn)定可靠的多次反射吸收池來(lái)提高檢測(cè)靈敏度，并采用氣體濾波技術(shù)增強(qiáng)復(fù)雜環(huán)境下的抗干擾能力。精度高、穩(wěn)定性好、抗干擾能力強(qiáng)。 </p> <p> 中船安譜便攜式紅外CO分析儀符合《公共場(chǎng)所衛(wèi)生檢驗(yàn)方法》的國(guó)家標(biāo)準(zhǔn)，滿足J《一氧化碳、二氧化碳紅外線氣體分析器》中規(guī)定的計(jì)量檢測(cè)要求，已通過(guò)國(guó)家計(jì)量部門的型式評(píng)價(jià)，并取得了生產(chǎn)許可證書(shū)。產(chǎn)品可廣泛應(yīng)用于環(huán)境監(jiān)測(cè)、化工、石油、倉(cāng)儲(chǔ)、疾控等領(lǐng)域。 </p> <p> 產(chǎn)品優(yōu)勢(shì) </p> <p> ◆ 精度高、穩(wěn)定性好、抗干擾能力強(qiáng)； </p> <p> ◆ 支持內(nèi)部催化自動(dòng)校零和外部標(biāo)氣手動(dòng)校零兩種方式； </p> <p> ◆ 內(nèi)置鋰電池供電，工作時(shí)間長(zhǎng)達(dá)5小時(shí)，可供戶外使用； </p> <p> ◆ 儀器內(nèi)置存儲(chǔ)器，可存儲(chǔ)5000組數(shù)據(jù)，也可將數(shù)據(jù)導(dǎo)出到PC機(jī)； </p> <p> ◆ 提供RS485接口，可用于和上位機(jī)通信； </p> <p> ◆ 具有聲光報(bào)警功能，報(bào)警閾值可調(diào) 北京便攜式CO分析儀****</p><p style="text-indent:25px">中船重工安譜（湖北）儀器有限公司成立于2016年6月，位于全國(guó)旅游名城——湖北省宜昌市。公司由中國(guó)船舶集團(tuán)有限公司批準(zhǔn)，是一家央企控股的高科技儀器公司。公司由中船重工第七一〇研究所、中船重工科技投資發(fā)展有限公司及**技術(shù)持有者共同注資成立。公司定位面向“**、環(huán)境監(jiān)測(cè)、生命健康”三個(gè)方向，開(kāi)展**分析檢測(cè)儀器的研發(fā)、生產(chǎn)及銷售。公司成立以來(lái)先后并得到湖北省科技廳、湖北省安監(jiān)局、宜昌市科技局、陸軍裝備部、海軍研究院等軍地多個(gè)部門的項(xiàng)目支持。公司占地面積約3500平米，下設(shè)化學(xué)實(shí)驗(yàn)室、機(jī)械實(shí)驗(yàn)室、電學(xué)實(shí)驗(yàn)室、光學(xué)實(shí)驗(yàn)室、聯(lián)調(diào)總裝實(shí)驗(yàn)室等多個(gè)實(shí)驗(yàn)室，同時(shí)設(shè)有**的生產(chǎn)車間，能達(dá)到年產(chǎn)量10000臺(tái)套儀器生產(chǎn)水平。公司以建設(shè)一支“上下一心、勇猛頑強(qiáng)、專業(yè)***、成長(zhǎng)迅速”的人才隊(duì)伍為目標(biāo)，現(xiàn)有員工70余人，其中博士2人，碩士30余人，高級(jí)工程師3人，湖北省英才計(jì)劃**1名。公司技術(shù)人員涵蓋機(jī)械、電子、光學(xué)、軟件、化學(xué)分析、自動(dòng)控制、精密儀器、系統(tǒng)仿真等各個(gè)專業(yè)。公司秉承“客戶***，技術(shù)**”的發(fā)展理念，始終以“攀探測(cè)***，護(hù)華夏安全”使命為己任，聚焦軍民用市場(chǎng)客戶需求，立志成為世界前列的高科技精密儀器公司。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/1620696.html</p></div></div></div></div></div><div id="7vpr7zb" 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