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href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</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>?松江區(qū)高頻噪聲檢測服務(wù)為先上海綠環(huán)商品檢測供應(yīng)</p><div id="q8ey8om" class="leftbox clearfix"><h1>松江區(qū)高頻噪聲檢測服務(wù)為先上海綠環(huán)商品檢測供應(yīng)</h1><div id="qmksywk" class="proBig"><div id="ouiywcs" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/SHLHJC1/637449324910438479/921874.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="u00u8kq" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/SHLHJC1/637449324910438479/921874.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="wu8sgmy" 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>松江區(qū)高頻噪聲檢測,噪聲檢測</p><p><span>***更新：</span>2021-01-09 02:20:02</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="omkay20" 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(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="cgmm0ay" class="page-proshow02"><p class="title">詳細說明</p><div id="msiy8ki" class="box"><p><p style="text-indent:25px">區(qū)域噪聲污染控制方法：區(qū)域噪聲能夠?qū)⒊鞘性肼曃廴厩闆r較全反映出來，是一項極其重要的指標。尤其是對于市中心而言，車輛數(shù)量較大，道路交通擁擠，若是可以設(shè)置更多過街天橋與人行地道，并對車輛行駛道路范圍作出限制，則能夠讓行人獲得更大的空間。如此一來，可以有效控制車輛的行駛量，減低車輛造成的區(qū)域噪聲污染。做好噪聲管理工作因為噪聲污染具備客觀性特點，所以無法有效避免，應(yīng)較大限度降低噪聲，確?？刂圃谌藗兡軌虺惺芊秶鷥?nèi)，避免對人們身心健康造成危害。在噪聲污染治理過程中，松江區(qū)高頻噪聲檢測，應(yīng)該學(xué)習(xí)發(fā)達國家的成功經(jīng)驗，采取減少噪聲車輛，松江區(qū)高頻噪聲檢測，松江區(qū)高頻噪聲檢測、合理規(guī)劃城市、優(yōu)化道路設(shè)計、完善制度法規(guī)等。在城市噪聲污染中，交通噪聲占據(jù)的比例較大，特別是機動車。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)，在實踐中不斷作出修改與調(diào)整，保證其適用性與先進性。周期性變化噪聲用快擋讀取較大值并讀取隨時間變化的噪聲值，也可以測量等效聲級。松江區(qū)高頻噪聲檢測</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="松江區(qū)高頻噪聲檢測,噪聲檢測" src="https://tyunfile.71360.com/UploadFile/SHLHJC1/637449324910438479/921874.png"></div><p style="text-indent:25px">噪聲檢測要求：1、測量儀器：測量儀器精度為II型及II型以上的積分平均聲級計或環(huán)境噪聲自動監(jiān)測儀器，其性能需符合《聲級計的電、聲性能及測試方法》(GB 3785—83) 和《積分平均聲級計》(GB/T17181—1997)的規(guī)定，并定期校驗。測量前后使用聲校準器校準測量儀器的示值偏差不得大于0.5dB，否則測量無效。聲校準器應(yīng)滿足《聲校準器》(GB/T15173—94)對1級或2級聲校準器的要求，測量時傳聲器應(yīng)加防風(fēng)罩。2、測點選擇：根據(jù)監(jiān)測對象和目的，可選擇以下3種測點條件(指傳聲器所置位置)進行環(huán)境噪聲的測量：（1）一般戶外：距離任何反射物(地面除外)至少3.5m外測量,距地面高度1.2m以上，必要時可置于高層建筑上，以擴大監(jiān)測受聲范圍。使用監(jiān)測車輛測量，傳聲器應(yīng)固定在車頂部1.2m高度處。（2）噪聲敏感建筑物戶外：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。（3）噪聲敏感建筑物室內(nèi)：距離墻面和其他反射面至少1m。距窗約1.5m處，距地面1.2~1.5m高。松江區(qū)高頻噪聲檢測測量時要避免高溫、高濕、強磁場、地面和墻面反射等因素的影響。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="松江區(qū)高頻噪聲檢測,噪聲檢測" src="https://tyunfile.71360.com/UploadFile/SHLHJC1/637449324923778264/1912157.png"></div><p style="text-indent:25px">噪聲的檢測標準和檢測方法有哪些：1.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(yīng)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。2.檢測方法：環(huán)境噪聲檢測測量儀器精度為 2 型及2 型以上的積分平均聲級計或環(huán)境噪聲自動監(jiān)測儀器，其性能需符合GB3785 和GB/T 17181 的規(guī)定，并定期校驗。測量前后使用聲校準器校準測量儀器的示值偏差不得大于0.5 dB，否則測量無效。聲校準器應(yīng)滿足GB/T 15173 對1 級或2 級聲校準器的要求。測量時傳聲器應(yīng)加防風(fēng)罩。</p><p style="text-indent:25px">噪聲標準和校準系統(tǒng)：噪聲標準是輸出電平準確已知的標準噪聲源，通常由電阻負載、傳輸線和加熱電阻爐或致冷杜瓦瓶構(gòu)成。它完全遵循奈奎斯特定理工作,輸出噪聲功率P＝kTB,經(jīng)過準確測溫并嚴格計算傳輸線產(chǎn)生的影響,即可精確推知其輸出噪聲電平。1000K左右的熱標準精確度可達4K,78K的液氮冷標準精確度可達0.3K，而4.2K的液氦冷標準精確度可達0.05K。校準系統(tǒng)是用來精確比較二個噪聲源間電平差值的測量系統(tǒng)，與噪聲標準源配套構(gòu)成噪聲標準裝置。校準系統(tǒng)實際上是一個高靈敏度、高精度的測試接收機，常稱作輻射計。常用的型式有全功率接收式輻射計、狄克輻射計及其改進型（零平衡指示式）、附加噪聲注入式輻射計和相關(guān)接收式輻射計等。輻射計標準系統(tǒng)中，讀取噪聲電平差值的精密衰減器是確定系統(tǒng)精確度的關(guān)鍵部件。輸出超噪比為15.5分貝的氣體放電噪聲源的校準精度可達0.03分貝；液氮致冷的780K冷負載噪聲源的校準精度為0.06K。室內(nèi)噪聲標準可分為住宅和非住宅兩種。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="松江區(qū)高頻噪聲檢測,噪聲檢測" src="https://tyunfile.71360.com/UploadFile/SHLHJC1/637449324982909083/9123692.png"></div><p style="text-indent:25px">噪聲是一種惡性刺激物，長期作用于人的系統(tǒng)，可使大腦皮層的興奮和克制失調(diào)，條件反射異常，出現(xiàn)頭暈、、耳鳴、多夢、、心慌、記憶力減退、注意力不集中等癥狀，嚴重者可產(chǎn)生精神錯亂。這種癥狀，藥物治療療效很差，但當(dāng)脫離噪聲環(huán)境時，癥狀就會明顯好轉(zhuǎn)。噪聲可引起植物神經(jīng)系統(tǒng)功能紊亂，表現(xiàn)在血壓升高或降低，心率改變，心臟病加劇。噪聲會使人唾液、胃液分泌減少，胃酸降低，胃蠕動減弱，食欲不振，引起胃潰瘍。噪聲對人的內(nèi)分泌機能也會產(chǎn)生影響，如：導(dǎo)致女性性機能紊亂，月經(jīng)失調(diào)，流產(chǎn)率增加等。噪聲對兒童的智力發(fā)育也有不利影響，據(jù)調(diào)查，3歲前兒童生活在75分貝的噪聲環(huán)境里，他們的心腦功能發(fā)育都會受到不同程度的損害，在噪聲環(huán)境下生活的兒童，智力發(fā)育水平要比安靜條件下的兒童低20％。噪聲對人的心理影響主要是使人煩惱、激動、易怒，甚至失去理智。此外，噪聲還對動物、建筑物有損害，在噪聲下的植物也生長不好，有的甚至死亡。求電壓表具有的滿度波峰因數(shù)就可勝任。普陀區(qū)建筑工地噪聲檢測服務(wù)</p><p style="text-indent:25px">噪聲存在于一切電子系統(tǒng)中，嚴重地影響通信系統(tǒng)接收微弱信號的能力，即影響通信的質(zhì)量。松江區(qū)高頻噪聲檢測</p><p style="text-indent:25px">檢測流程：1.采樣人員采樣檢測每日，現(xiàn)場采樣人員都要將實地采回來的樣品進行檢測，然后出具檢測報告。不同企業(yè)有不同的檢測項目，好像酒樓食肆一類的企業(yè)，就以噪聲以及廢水為主要檢測項目。在取樣之前，檢測人員首先會對企業(yè)進行實地考察，找出噪聲檢測點位和污水排放口檢測點。2.尋找噪聲源對其檢測接下來采樣人員便需要尋找到噪聲源，找到之后，檢測人員就要對噪聲源進行噪聲監(jiān)測。為了確保檢測數(shù)據(jù)的準確性，采樣人員手中的檢測儀器每年都要經(jīng)過強制檢定才能繼續(xù)使用。3.檢測數(shù)據(jù)記錄在冊在保證儀器正常的情況下，檢測人員將檢測數(shù)據(jù)及相關(guān)信息記錄在冊作為原始數(shù)據(jù)。而對于無法在現(xiàn)場得出數(shù)據(jù)的項目，現(xiàn)場采樣人員就會將它們進行采樣。為了使檢測數(shù)據(jù)更準確，有時檢測人員（現(xiàn)場采樣人員）需要親身落井，進行采樣。松江區(qū)高頻噪聲檢測</p><p style="text-indent:25px">上海綠環(huán)商品檢測有限公司位于綏德路2弄8號第四層，交通便利，環(huán)境優(yōu)美，是一家服務(wù)型企業(yè)。是一家有限責(zé)任公司企業(yè)，隨著市場的發(fā)展和生產(chǎn)的需求，與多家企業(yè)合作研究，在原有產(chǎn)品的基礎(chǔ)上經(jīng)過不斷改進，追求新型，在強化內(nèi)部管理，完善結(jié)構(gòu)調(diào)整的同時，良好的質(zhì)量、合理的價格、完善的服務(wù)，在業(yè)界受到寬泛好評。以滿足顧客要求為己任；以顧客永遠滿意為標準；以保持行業(yè)優(yōu)先為目標，提供***的環(huán)境監(jiān)測，公共場所衛(wèi)生檢測，建設(shè)工程衛(wèi)生學(xué)評價，室內(nèi)空氣檢測。上海綠環(huán)商品檢測將以真誠的服務(wù)、創(chuàng)新的理念、***的產(chǎn)品，為彼此贏得全新的未來！</p></p><br /><p>文章來源地址: 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