醫(yī)院噪聲檢測(cè)公司推薦咨詢上海綠環(huán)商品檢測(cè)供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="噪聲的檢測(cè)標(biāo)準(zhǔn)和檢測(cè)方法有哪些：室內(nèi)標(biāo)準(zhǔn)：室內(nèi)噪聲標(biāo)準(zhǔn)可分為住宅和非住宅兩種。住宅室內(nèi)噪聲標(biāo)準(zhǔn)是根據(jù)生活安靜的要求和所在區(qū)域環(huán)境噪聲標(biāo)準(zhǔn)，參考住宅窗戶條件制定的，一般不應(yīng)低于所在區(qū)域的環(huán)境噪聲標(biāo)準(zhǔn)20分貝。中國(guó)住宅室內(nèi)的標(biāo)準(zhǔn)規(guī)定為低于所在區(qū)"><meta name="keywords" content="醫(yī)院噪聲檢測(cè)公司,噪聲檢測(cè)"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" 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src="https://tyunfile.71360.com/UploadFile/SHLHJC1/637449324718045812/3185742.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3vh87sh" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/SHLHJC1/637449324718045812/3185742.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="etace4q" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>醫(yī)院噪聲檢測(cè)公司,噪聲檢測(cè)</p><p><span>***更新：</span>2021-01-16 03:17:56</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="s77ibza" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海綠環(huán)商品檢測(cè)有限公司</a></p><p><span>聯(lián)系人：</span>程莉君</p><p><span>郵箱: </span>chenglijun139@163.com</p><p><span>電話: </span>18717976244</p><p><span>傳真: </span>021_62384557</p><p><span>網(wǎng)址: </span>http://www.x-gpi.com</p><p><span>手機(jī): </span>021-62398830</p><p><span>地址: </span>綏德路2弄8號(hào)第四層</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="lpc743l" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="pjlnkeq" class="box"><p><p style="text-indent:25px">噪聲的檢測(cè)標(biāo)準(zhǔn)和檢測(cè)方法有哪些：室內(nèi)標(biāo)準(zhǔn)：室內(nèi)噪聲標(biāo)準(zhǔn)可分為住宅和非住宅兩種。住宅室內(nèi)噪聲標(biāo)準(zhǔn)是根據(jù)生活安靜的要求和所在區(qū)域環(huán)境噪聲標(biāo)準(zhǔn)，參考住宅窗戶條件制定的，一般不應(yīng)低于所在區(qū)域的環(huán)境噪聲標(biāo)準(zhǔn)20分貝。中國(guó)住宅室內(nèi)的標(biāo)準(zhǔn)規(guī)定為低于所在區(qū)域環(huán)境噪聲標(biāo)準(zhǔn)10分貝，因?yàn)橹袊?guó)城市有較多的小工廠緊靠住宅。非住宅的室內(nèi)噪聲標(biāo)準(zhǔn)，是根據(jù)房間用途規(guī)定的。各類標(biāo)準(zhǔn)的適用區(qū)域：0類標(biāo)準(zhǔn)適用于療養(yǎng)區(qū)、高級(jí)別墅區(qū)、高級(jí)賓館區(qū)等特別需要安靜的區(qū)域。位于城郊和鄉(xiāng)村的這一類區(qū)域分別按嚴(yán)于0類標(biāo)準(zhǔn)5分貝執(zhí)行。1類標(biāo)準(zhǔn)適用于以居住、文教機(jī)關(guān)為主的區(qū)域。鄉(xiāng)村居住環(huán)境可參照?qǐng)?zhí)行該類標(biāo)準(zhǔn)。2類標(biāo)準(zhǔn)適用于居住、商業(yè)、工業(yè)混雜區(qū)。3類標(biāo)準(zhǔn)適用于工業(yè)區(qū)。4類標(biāo)準(zhǔn)適用于城市中的道路交通干線道路兩側(cè)區(qū)域，醫(yī)院噪聲檢測(cè)公司，穿越城區(qū)的內(nèi)河航道兩側(cè)區(qū)域。穿越城區(qū)的鐵路主，醫(yī)院噪聲檢測(cè)公司、次干線兩側(cè)區(qū)域的背景噪聲（指不通過(guò)列車時(shí)的噪聲水平）限值也執(zhí)行該類標(biāo)準(zhǔn)，醫(yī)院噪聲檢測(cè)公司。噪聲監(jiān)測(cè)是對(duì)干擾人們學(xué)習(xí)、工作和生活的聲音及其聲源進(jìn)行的監(jiān)測(cè)活動(dòng)。醫(yī)院噪聲檢測(cè)公司</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="醫(yī)院噪聲檢測(cè)公司,噪聲檢測(cè)" src="https://tyunfile.71360.com/UploadFile/SHLHJC1/637449324718045812/3185742.png"></div><p style="text-indent:25px">銑床產(chǎn)生噪聲的原因：通過(guò)歸納這些噪聲所產(chǎn)生的原因，都與齒輪的嚙合情況、齒輪的設(shè)計(jì)加工和裝配安裝有很大的關(guān)聯(lián)。在齒輪精度中，齒輪本身的齒形誤差就會(huì)產(chǎn)生大量的噪聲。檢測(cè)證明，對(duì)于高精密傳動(dòng)齒輪，設(shè)計(jì)齒形時(shí)我們可以采用中凸的齒形曲線，轉(zhuǎn)動(dòng)承載中噪聲較小。但需要在專門的精密儀器上測(cè)量，所以往往忽略對(duì)此項(xiàng)誤差的檢查，本來(lái)可以降低噪聲反過(guò)來(lái)卻造成銑床噪聲過(guò)大。另一個(gè)引起機(jī)床噪聲的因素是齒距偏差。齒輪在制造生產(chǎn)中都會(huì)產(chǎn)生誤差，不會(huì)消除只能降低齒距偏差。通常都要檢測(cè)，只要齒距精度控制在良好的范圍內(nèi)，噪聲影響不明顯。但是當(dāng)齒輪精度要求不高時(shí)，或是該項(xiàng)誤差達(dá)不到精度要求，就會(huì)引起噪聲。醫(yī)院噪聲檢測(cè)公司進(jìn)行噪聲測(cè)量時(shí)應(yīng)注意對(duì)背景聲進(jìn)行修正。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="醫(yī)院噪聲檢測(cè)公司,噪聲檢測(cè)" src="https://tyunfile.71360.com/UploadFile/SHLHJC1/637449324969940385/755914.png"></div><p style="text-indent:25px">環(huán)境噪聲測(cè)量注意事項(xiàng)有哪些：（1）環(huán)境噪聲測(cè)量主要是要取得指定區(qū)域噪聲的隨時(shí)間和地點(diǎn)不同的分布情況，測(cè)量時(shí)要根據(jù)與測(cè)量目的相對(duì)應(yīng)的有關(guān)標(biāo)準(zhǔn)的要求開(kāi)展測(cè)量工作。（2）選擇測(cè)量?jī)x器時(shí)，首先應(yīng)根據(jù)測(cè)量需要，決定儀器的精度等級(jí)和性能規(guī)格，即要求所使用的儀器在頻率計(jì)權(quán)、時(shí)間計(jì)權(quán)和允許誤差等方面具有標(biāo)準(zhǔn)規(guī)定的性能，包括一起的統(tǒng)計(jì)分析功能、自動(dòng)檢測(cè)與記錄功能和足夠的動(dòng)態(tài)范圍等。（3）環(huán)境噪聲測(cè)量時(shí)，須注意使用之前應(yīng)使用活塞發(fā)聲器或聲級(jí)校準(zhǔn)器對(duì)聲級(jí)計(jì)進(jìn)行校準(zhǔn)。（4）進(jìn)行噪聲測(cè)量時(shí)應(yīng)注意對(duì)背景聲進(jìn)行修正。</p><p style="text-indent:25px">噪聲振動(dòng)測(cè)試行業(yè)現(xiàn)狀：噪聲振動(dòng)的測(cè)試是指對(duì)聲振現(xiàn)象進(jìn)行客觀度量的一項(xiàng)專門技術(shù)，在科學(xué)研究，社會(huì)服務(wù)及工程領(lǐng)域都有普遍的應(yīng)用。根據(jù)國(guó)家“十三五”規(guī)劃及市場(chǎng)發(fā)展方向，我國(guó)噪聲與振動(dòng)控制行業(yè)的技術(shù)和市場(chǎng)熱點(diǎn)將集中在鐵路、公路與軌道交通運(yùn)輸業(yè)、電力行業(yè)、城市環(huán)境噪聲在線監(jiān)測(cè)與聲地圖技術(shù)，建筑聲學(xué)處理與噪聲控制以及新型聲學(xué)材料的研究開(kāi)發(fā)等方面。噪聲與振動(dòng)測(cè)量?jī)x器、各種智能化的自動(dòng)加工裝備的噪聲振動(dòng)在線監(jiān)測(cè)，環(huán)境噪聲評(píng)估技術(shù)，噪聲振動(dòng)控制工業(yè)化設(shè)計(jì)咨詢和“一攬子系統(tǒng)解決方案”服務(wù)等都是值得關(guān)注的技術(shù)和市場(chǎng)趨勢(shì)。而且特強(qiáng)噪聲對(duì)儀器設(shè)備和建筑結(jié)構(gòu)的也有嚴(yán)重的危害。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="醫(yī)院噪聲檢測(cè)公司,噪聲檢測(cè)" src="https://tyunfile.71360.com/UploadFile/SHLHJC1/637437362640688700/8493263.png"></div><p style="text-indent:25px">應(yīng)用場(chǎng)景:NVH測(cè)試:NVH一般是指汽車制造質(zhì)量的一個(gè)綜合性問(wèn)題，需要將用戶的較直觀的感受分解到汽車各部件的性能上去。各大整車廠近20%的研發(fā)費(fèi)用都是花費(fèi)在車輛的NVH問(wèn)題上。在當(dāng)前整個(gè)汽車行業(yè)不景氣的情況下，加大研發(fā)的投入是所有整車廠的選擇。要解決這個(gè)問(wèn)題，一般需要多點(diǎn)多參數(shù)的同步測(cè)試，以便分析各部件的關(guān)聯(lián)關(guān)系。因此要解決NVH問(wèn)題，測(cè)試系統(tǒng)采集和分析同樣重要。目前市面上流行的多通道多參數(shù)的測(cè)試系統(tǒng)基本都是國(guó)外設(shè)備的天下，且測(cè)試軟件都綁定硬件。此類領(lǐng)域測(cè)試裝備的特點(diǎn)是：通道數(shù)多，信號(hào)分析能力要求高。對(duì)于無(wú)法在現(xiàn)場(chǎng)得出數(shù)據(jù)的項(xiàng)目，現(xiàn)場(chǎng)采樣人員就會(huì)將它們進(jìn)行采樣。醫(yī)院噪聲檢測(cè)公司</p><p style="text-indent:25px">在某些場(chǎng)合強(qiáng)度要求不高時(shí)，可大膽地使用非金屬材料作為選擇齒輪的材料。醫(yī)院噪聲檢測(cè)公司</p><p style="text-indent:25px">噪聲監(jiān)測(cè)要點(diǎn)：1、監(jiān)測(cè)因子：一般為L(zhǎng)d（晝間等效連續(xù)A聲級(jí)）、Ln（夜間等效連續(xù)A聲級(jí)），有突發(fā)噪聲或偶發(fā)噪聲時(shí)夜間需同時(shí)測(cè)量Lmax（較大A聲級(jí)）【Lmax必須寫(xiě)上前面的限定詞語(yǔ)】。2、監(jiān)測(cè)布點(diǎn)方案：一般規(guī)定是可選擇在噪聲敏感建筑物外，距墻壁或窗戶1m處，距地面高度1.2m以上（別忘記“以上”倆字）。(PS：背景值監(jiān)測(cè)點(diǎn)位布設(shè)原則請(qǐng)查看“兔子總結(jié)第15期噪聲現(xiàn)狀監(jiān)測(cè)與敏感點(diǎn)環(huán)境預(yù)測(cè)噪聲預(yù)測(cè)與評(píng)價(jià)”）3、監(jiān)測(cè)時(shí)間及頻次：對(duì)敏感建筑物的環(huán)境噪聲監(jiān)測(cè)應(yīng)在周圍環(huán)境噪聲源正常工作條件下測(cè)量，根據(jù)噪聲源的運(yùn)行工況，分晝、夜兩個(gè)時(shí)段連續(xù)進(jìn)行。根據(jù)環(huán)境噪聲源的特性，可優(yōu)化測(cè)量時(shí)段。分為固定聲源、交通噪聲源（流動(dòng)聲源）。醫(yī)院噪聲檢測(cè)公司</p><p style="text-indent:25px">上海綠環(huán)商品檢測(cè)有限公司擁有從事商品、環(huán)境、公共衛(wèi)生的檢測(cè)及評(píng)價(jià)服務(wù)；檢測(cè)技術(shù)開(kāi)發(fā)、轉(zhuǎn)讓自研成果，并提供相關(guān)的技術(shù)咨詢和技術(shù)服務(wù)，室內(nèi)空氣檢測(cè)，廢氣廢水噪聲監(jiān)測(cè)，土壤監(jiān)測(cè)，公共場(chǎng)所衛(wèi)生檢測(cè)，生活飲用水檢測(cè)，空調(diào)通風(fēng)系統(tǒng)檢測(cè)與評(píng)價(jià)等等多項(xiàng)業(yè)務(wù)，主營(yíng)業(yè)務(wù)涵蓋環(huán)境監(jiān)測(cè)，公共場(chǎng)所衛(wèi)生檢測(cè)，建設(shè)工程衛(wèi)生學(xué)評(píng)價(jià)，室內(nèi)空氣檢測(cè)。目前我公司在職員工以90后為主，是一個(gè)有活力有能力有創(chuàng)新精神的團(tuán)隊(duì)。公司業(yè)務(wù)范圍主要包括：環(huán)境監(jiān)測(cè)，公共場(chǎng)所衛(wèi)生檢測(cè)，建設(shè)工程衛(wèi)生學(xué)評(píng)價(jià)，室內(nèi)空氣檢測(cè)等。公司奉行顧客至上、質(zhì)量為本的經(jīng)營(yíng)宗旨，深受客戶好評(píng)。公司憑著雄厚的技術(shù)力量、飽滿的工作態(tài)度、扎實(shí)的工作作風(fēng)、良好的職業(yè)道德，樹(shù)立了良好的環(huán)境監(jiān)測(cè)，公共場(chǎng)所衛(wèi)生檢測(cè)，建設(shè)工程衛(wèi)生學(xué)評(píng)價(jià)，室內(nèi)空氣檢測(cè)形象，贏得了社會(huì)各界的信任和認(rèn)可。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2866104.html</p></div></div></div></div></div><div id="icegd8f" 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title="六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u id="qgqbi"></u><noframes id="qgqbi"></noframes><menu id="qgqbi"></menu><blockquote id="qgqbi"></blockquote><track id="qgqbi"><label 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