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id="g3pj3cr" class="twoCol"><div id="7ffnrmr" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應</a>?<a href="http://www.cdcfah.com/cp/first-_huanbao/">環(huán)保</a>?<a href="http://www.cdcfah.com/cp/second-huanbao_hjjcyq/">環(huán)境檢測儀器</a>?<a href="http://www.cdcfah.com/cp/third-hjjcyq_zaoyinjipy/">噪音計</a>?普陀區(qū)住宅噪聲檢測收費信息推薦上海綠環(huán)商品檢測供應</p><div id="biidoeu" class="leftbox clearfix"><h1>普陀區(qū)住宅噪聲檢測收費信息推薦上海綠環(huán)商品檢測供應</h1><div id="cz7rwhc" class="proBig"><div id="wuvwxiy" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/SHLHJC1/637449324775067277/1517261.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="dlbff8w" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/SHLHJC1/637449324775067277/1517261.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="2fqwmpk" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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>普陀區(qū)住宅噪聲檢測收費,噪聲檢測</p><p><span>***更新：</span>2021-01-28 03:16:36</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="ly3wcn8" 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: </span>021-62398830</p><p><span>地址: </span>綏德路2弄8號第四層</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="3yyj3hv" class="page-proshow02"><p class="title">詳細說明</p><div id="nlf8viy" class="box"><p><p style="text-indent:25px">環(huán)境噪聲監(jiān)測能力建設(shè)：“九五”期間環(huán)境噪聲監(jiān)測能力建設(shè)需求為：裝備水平上，在中國環(huán)境監(jiān)測總站配備自動采樣．（如電瓶記錄儀，磁帶記錄儀等）和信息分析儀器（如實時分析儀、FFT分析儀、噪聲信息處理儀等），形成較全的環(huán)境噪聲監(jiān)測方法，標準廠家能力和**仲裁能力。在各省級環(huán)境監(jiān)測中心站建立環(huán)境噪聲信息實驗室分析系統(tǒng)，能負責省內(nèi)噪聲監(jiān)測工作的組織、噪聲監(jiān)測技術(shù)的培訓、噪聲監(jiān)測住處的匯總。以及地市間噪聲污染糾紛的仲裁能力，普陀區(qū)住宅噪聲檢測收費，各級環(huán)境監(jiān)測站均能做到按規(guī)定的監(jiān)測時段開展環(huán)境噪聲監(jiān)測，并及時地按報告制度上報監(jiān)測結(jié)果，普陀區(qū)住宅噪聲檢測收費。在技術(shù)力量上，加強省級和重點城市環(huán)境監(jiān)測站環(huán)境噪聲監(jiān)測人員的專業(yè)培訓，普陀區(qū)住宅噪聲檢測收費。當所測噪聲高出背景不足3dB時，測量結(jié)果不能作為任何依據(jù)。普陀區(qū)住宅噪聲檢測收費</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="普陀區(qū)住宅噪聲檢測收費,噪聲檢測" src="https://tyunfile.71360.com/UploadFile/SHLHJC1/637449324775067277/1517261.png"></div><p style="text-indent:25px">噪聲的檢測標準和檢測方法有哪些：室內(nèi)標準：室內(nèi)噪聲標準可分為住宅和非住宅兩種。住宅室內(nèi)噪聲標準是根據(jù)生活安靜的要求和所在區(qū)域環(huán)境噪聲標準，參考住宅窗戶條件制定的，一般不應低于所在區(qū)域的環(huán)境噪聲標準20分貝。中國住宅室內(nèi)的標準規(guī)定為低于所在區(qū)域環(huán)境噪聲標準10分貝，因為中國城市有較多的小工廠緊靠住宅。非住宅的室內(nèi)噪聲標準，是根據(jù)房間用途規(guī)定的。各類標準的適用區(qū)域：0類標準適用于療養(yǎng)區(qū)、高級別墅區(qū)、高級賓館區(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)域分別按嚴于0類標準5分貝執(zhí)行。1類標準適用于以居住、文教機關(guān)為主的區(qū)域。鄉(xiāng)村居住環(huán)境可參照執(zhí)行該類標準。2類標準適用于居住、商業(yè)、工業(yè)混雜區(qū)。3類標準適用于工業(yè)區(qū)。4類標準適用于城市中的道路交通干線道路兩側(cè)區(qū)域，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、次干線兩側(cè)區(qū)域的背景噪聲（指不通過列車時的噪聲水平）限值也執(zhí)行該類標準。徐匯區(qū)低頻噪聲檢測機構(gòu)提高齒輪加工精度、裝配定位精度，所有齒輪驗收時應成對檢驗。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="普陀區(qū)住宅噪聲檢測收費,噪聲檢測" src="https://tyunfile.71360.com/UploadFile/SHLHJC1/637449324936239188/536607.png"></div><p style="text-indent:25px">目前的國內(nèi)聲學振動測試領(lǐng)域主要存在下面三個問題：一、設(shè)備專業(yè)性高，而懂聲振測試及分析的從業(yè)人員較少。二、常用的NVH測試設(shè)備、多通道高精度儀器都是國外的設(shè)備，軟件和硬件打包售賣，價格昂貴。三、特殊領(lǐng)域的測試系統(tǒng)比如高聲強測試國內(nèi)無通用裝備。而很多敏感領(lǐng)域，比如**，航空航天專業(yè)又無法使用國外產(chǎn)品。聲學振動測試行業(yè)格局曾經(jīng)隨著DSP技術(shù)的發(fā)展有過重大變化，以模擬電路為信號處理主力的廠家不再有壟斷地位。而當前隨著現(xiàn)代社會的發(fā)展，通信網(wǎng)和互聯(lián)網(wǎng)的普遍推廣和網(wǎng)絡(luò)延伸，同時智能手機的普及，各種移動設(shè)備處理器的性能突飛猛進，已經(jīng)遠遠超過單通道信號采集和實時簡單處理的運算能力要求。可以想象，與現(xiàn)有的通信網(wǎng)絡(luò)及智能設(shè)備的結(jié)合的聲學振動測試設(shè)備將是行業(yè)格局變化的一個新的契機。</p><p style="text-indent:25px">噪聲的監(jiān)測注意事項：一是測量儀器。所有測量儀器均應符合相應標準，使用前必須校準。首先測量噪聲級時，使用精密和普通聲級計，如需測量噪聲頻譜，需要聲級計上佩帶濾波器;其次測量等效聲級時，使用積分聲級計;再次測量脈沖噪聲則使用脈沖聲級計;較后測量聲強或分析噪聲信號時使用聲強計、實時分析儀等。二是測量條件。首先測量中要考慮背景噪聲的影響。當所測噪聲高出背景噪聲不足10dB時，應按規(guī)定修正測量結(jié)果;當所測噪聲高出背景不足3dB時，測量結(jié)果不能作為任何依據(jù)，只能作為參考。其次當環(huán)境天氣風速大于四級時，應停止室外測量。較后測量時要避免高溫、高濕、強磁場、地面和墻面反射等因素的影響。對此需要加強對機動車噪聲的管理工作，出臺相關(guān)法律法規(guī)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="普陀區(qū)住宅噪聲檢測收費,噪聲檢測" src="https://tyunfile.71360.com/UploadFile/SHLHJC1/637449324950936634/3129208.png"></div><p style="text-indent:25px">噪聲的壞處：使工作效率降低。研究發(fā)現(xiàn)，噪聲超過85分貝，會使人感到心煩意亂，人們會感覺到吵鬧，因而無法專心地工作，結(jié)果會導致工作效率降低。損傷聽覺、視覺部位我們都有這樣的經(jīng)驗，從飛機里下來或從鍛壓車間出來，耳朵總是嗡嗡作響，甚至聽不清對方說話的聲音，過一會兒才會恢復。這種現(xiàn)象叫做聽覺疲勞，是人體聽覺部位對外界環(huán)境的一種保護性反應。如果人長時間遭受強烈噪聲作用，聽力就會減弱，進而導致聽覺部位的器質(zhì)性損傷，造成聽力下降。強的噪聲可以引起耳部的不適，如耳鳴、耳痛、聽力損傷。據(jù)測定，超過115 分貝的噪聲還會造成耳聾。據(jù)臨床醫(yī)學統(tǒng)計，若在80分貝以上噪音環(huán)境中生活，造成耳聾者可達50％。醫(yī)學**研究認為，家庭噪音是造成兒童聾啞的病因之一。環(huán)境噪聲測量時，須注意使用之前應使用活塞發(fā)聲器或聲級校準器對聲級計進行校準。普陀區(qū)住宅噪聲檢測收費</p><p style="text-indent:25px">噪聲又稱雜音，屬于隨機信號，可用統(tǒng)計學方法加以描述，即其統(tǒng)計量是可測的。普陀區(qū)住宅噪聲檢測收費</p><p style="text-indent:25px">聲強測量法：當聲強探頭在聲源附近移動時，聲波入射角與傳聲器膜片外法向方向為90°時具有較小的方向靈敏度，輸出聲強為0。當聲強探頭改變位置并使其夾角小于或大于90°時，聲強探頭輸出正或負聲強，且隨夾角增加在0～180°范圍內(nèi)聲強較全值增加。因此，用聲強測量法能區(qū)分出聲波入射的方向，從而找出噪聲聲源，并可測量可能聲源的位置。聲強測量法不需要特殊的聲學環(huán)境，適宜作現(xiàn)場測量。由于聲強是矢量，不僅能反映噪聲的大小還表示噪聲的輻射方向，因此測量汽車或發(fā)動機表面聲強分布就可以知道聲音的輻射情況。但聲強測量的測試效率較低，一方面為準確確定噪聲源不得不選擇適當?shù)臏y點和側(cè)面，進行細致的、多方面的聲強分布研究；而另一方面噪聲大時多對應于發(fā)動機滿負荷工作狀態(tài)，由于降溫和通風設(shè)施欠缺不允許被試發(fā)動機長時間工作于滿負荷下，而反復啟動一則效率低，二則工況難以一致，給測量帶來了許多不便，甚至使試驗無法進行。普陀區(qū)住宅噪聲檢測收費</p><p style="text-indent:25px">上海綠環(huán)商品檢測有限公司致力于儀器儀表，是一家服務(wù)型的公司。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細節(jié)，公司旗下環(huán)境監(jiān)測，公共場所衛(wèi)生檢測，建設(shè)工程衛(wèi)生學評價，室內(nèi)空氣檢測深受客戶的喜愛。公司從事儀器儀表多年，有著創(chuàng)新的設(shè)計、強大的技術(shù)，還有一批**的專業(yè)化的隊伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。上海綠環(huán)商品檢測憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3042898.html</p></div></div></div></div></div><div id="8b8nijz" class="page-right twoColRt"><div 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