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class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="dnfc3p7" class="box"><p><p style="text-indent:25px">工廠為什么要做噪聲檢測：噪聲對人們的生活影響日益嚴(yán)重，噪聲干擾居民的工作、學(xué)習(xí)、休息和睡眠，嚴(yán)重的還會危害人體的健康。其中工廠噪聲又是城市噪聲的重要來源。工業(yè)噪聲是指機(jī)械設(shè)備運轉(zhuǎn)時產(chǎn)生的噪聲。按其噪聲源特性可分為：氣流噪聲、機(jī)械噪聲和電磁噪聲。從物理定義而言，振幅和頻率上完全無規(guī)律的震蕩稱之為噪聲。從環(huán)境保護(hù)角度而論，凡是人們所不需要的聲音統(tǒng)稱為噪聲。糾正錯誤觀念，只要聲音大了，即使是音樂也是噪聲什么是工業(yè)噪聲呢？工業(yè)企業(yè)廠界噪聲的定義：指在工業(yè)生產(chǎn)活動中使用固定設(shè)備等產(chǎn)生的、在廠界處進(jìn)行測量和控制的干擾周圍生活環(huán)境的聲音。人長期在噪音環(huán)境（75dBA及以上）中工作或生活，崇明區(qū)工業(yè)噪聲檢測價格，會造成聽覺疲勞、視力下降，嚴(yán)重者會造成長久性聽力損傷，甚至導(dǎo)致噪聲耳聾。同時，崇明區(qū)工業(yè)噪聲檢測價格，崇明區(qū)工業(yè)噪聲檢測價格，還會引起惡心、記憶力衰退、心律不齊、血壓波動，導(dǎo)致神經(jīng)衰弱，引發(fā)及動脈硬化。降低勞動生產(chǎn)率：在噪聲環(huán)境中工作，員工情緒煩燥不安，注意力無法集中，易導(dǎo)致工作失誤，嚴(yán)重影響工作質(zhì)量降低工作效率，甚至造成工傷事故。而且特強(qiáng)噪聲對儀器設(shè)備和建筑結(jié)構(gòu)的也有嚴(yán)重的危害。波峰因數(shù)是交流電壓的峰值與有效值之比，如正弦波的波峰因數(shù)為。崇明區(qū)工業(yè)噪聲檢測價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="崇明區(qū)工業(yè)噪聲檢測價格,噪聲檢測" src="https://tyunfile.71360.com/UploadFile/SHLHJC1/637449324969940385/755914.png"></div><p style="text-indent:25px">噪聲檢測中應(yīng)注意的問題：1.數(shù)據(jù)收集和整理問題噪聲檢測儀器設(shè)備的好壞，對數(shù)據(jù)收集與整理工作有著重要影響。若是收集的數(shù)據(jù)不夠真實、準(zhǔn)確，未及時整理噪聲數(shù)據(jù)，將不利于噪音檢測水平的提升，也無法為環(huán)境評價工作提供可靠的參考依據(jù)，導(dǎo)致噪聲污染問題持續(xù)加重。由于現(xiàn)階段我國噪聲檢測儀器設(shè)備還不夠先進(jìn)，功能較少，實際應(yīng)用效果不好，造成收集的數(shù)據(jù)準(zhǔn)確度不達(dá)標(biāo)，信息量也很少，不利于噪聲檢測與整治工作的正常開展。2.不過我國噪聲污染儀器設(shè)備還很落后，使噪聲檢測工作中出現(xiàn)了很多問題，如部分地區(qū)雖然安裝有儀器設(shè)備，但是受到地理因素等影響，儀器設(shè)備對噪聲檢測的效率并不高，經(jīng)常要投入大量人力、物力和財力，且較終治理噪聲污染的效果也不好，不能滿足相關(guān)環(huán)保規(guī)定。因此需要盡快應(yīng)用先進(jìn)的儀器設(shè)備，保證噪聲檢測工作正常進(jìn)行。崇明區(qū)工業(yè)噪聲檢測價格可用其滿度波峰因數(shù)間接反映放大器的動態(tài)范圍般測量正弦波的電壓表。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="崇明區(qū)工業(yè)噪聲檢測價格,噪聲檢測" src="https://tyunfile.71360.com/UploadFile/SHLHJC1/637449324982909083/9123692.png"></div><p style="text-indent:25px">噪聲測定儀的測量方法:聲壓級測量兩手平握聲級計，將傳聲器指向被測聲源，計權(quán)網(wǎng)絡(luò)開關(guān)置于“線性”位置，透明輸出旋鈕順時針轉(zhuǎn)到底，再調(diào)節(jié)黑色輸入旋鈕使指針有適當(dāng)偏轉(zhuǎn)，由透明輸出旋鈕兩條紅線所指的量程加上指示器指針的讀數(shù)，即可獲得所測聲壓級。例如：透明輸出旋鈕兩條紅線間指90dB，指針指示為+4dB，則被測聲壓級為90+4=94dB.當(dāng)所測聲壓級小，黑色輸入旋鈕置于70dB位置而指針仍無反應(yīng)時，可按反時針方向轉(zhuǎn)動透明輸出旋鈕，待指針有適當(dāng)偏轉(zhuǎn)時，即可讀數(shù)。例如透明輸出旋鈕兩條紅線間指50dB，指針指向-ldB，則被測聲壓級為50+（-1）=49dB。</p><p style="text-indent:25px">不同區(qū)域噪聲檢測方法：若是廠界存在圍墻，則噪聲檢測點必須在圍墻以上，應(yīng)根據(jù)實際狀況合理設(shè)置布點的數(shù)量。接下來要按照各噪聲測點位置開展噪聲檢測工作，同時認(rèn)真記錄相關(guān)數(shù)據(jù)，確保將工業(yè)等場所噪聲檢測結(jié)果準(zhǔn)確顯示出來。三是建筑施工噪聲檢測。在建筑施工場地噪聲檢測過程中，應(yīng)從被檢測建筑物的建筑方案出發(fā)，將噪聲檢測位置與氛圍合理確定下來。應(yīng)較全掌握建筑物形成污染源位置，之后在建筑施工現(xiàn)場邊界線上選擇污染源較近的檢測點，并從施工現(xiàn)場實際情況出發(fā)，有針對性作出調(diào)整，保證獲得較佳的噪聲檢測結(jié)果。一般要求電壓表的3dB帶寬△f3db大于8～10倍的噪聲帶寬。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="崇明區(qū)工業(yè)噪聲檢測價格,噪聲檢測" src="https://tyunfile.71360.com/UploadFile/SHLHJC1/637449324871053716/8633920.png"></div><p style="text-indent:25px">噪聲測定儀的測量方法及注意事項:測量方法1.使用前準(zhǔn)備裝上電池，將開關(guān)置于“電池檢查”位置，30秒鐘后指示燈亮，指針應(yīng)在紅線范圍內(nèi)，否則表示電壓不足，應(yīng)更換新電池。將開關(guān)放置在“快”或“慢”檔的位置（根據(jù)需要而定），此時指針應(yīng)回到－∞處。2.校正用活塞發(fā)生器校正。將計權(quán)網(wǎng)絡(luò)開關(guān)置于線性位置，順時針轉(zhuǎn)動輸出衰減器（透明旋鈕）轉(zhuǎn)到底，使旋鈕上的兩條紅線對準(zhǔn)面板上的紅線，將輸入衰減器（黑色旋鈕）上的l20dB刻度對準(zhǔn)紅線并在透明輸出旋鈕紅線之間。將活塞發(fā)生器套在電容傳聲器上，打開活塞發(fā)生器電源開關(guān)，活塞發(fā)生器即發(fā)出l24±0.2dB聲壓級的聲音。調(diào)節(jié)微調(diào)電位器，使指針指示出相應(yīng)的聲壓級讀數(shù)。如無活塞發(fā)生器，用儀器內(nèi)部電器校正信號校正。環(huán)境噪聲測量時，須注意使用之前應(yīng)使用活塞發(fā)聲器或聲級校準(zhǔn)器對聲級計進(jìn)行校準(zhǔn)。青浦區(qū)社會生活環(huán)境噪聲檢測服務(wù)機(jī)構(gòu)</p><p style="text-indent:25px">室內(nèi)噪聲標(biāo)準(zhǔn)可分為住宅和非住宅兩種。崇明區(qū)工業(yè)噪聲檢測價格</p><p style="text-indent:25px">噪聲監(jiān)測要點：1、監(jiān)測因子：一般為Ld（晝間等效連續(xù)A聲級）、Ln（夜間等效連續(xù)A聲級），有突發(fā)噪聲或偶發(fā)噪聲時夜間需同時測量Lmax（較大A聲級）【Lmax必須寫上前面的限定詞語】。2、監(jiān)測布點方案：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)測點位布設(shè)原則請查看“兔子總結(jié)第15期噪聲現(xiàn)狀監(jiān)測與敏感點環(huán)境預(yù)測噪聲預(yù)測與評價”）3、監(jiān)測時間及頻次：對敏感建筑物的環(huán)境噪聲監(jiān)測應(yīng)在周圍環(huán)境噪聲源正常工作條件下測量，根據(jù)噪聲源的運行工況，分晝、夜兩個時段連續(xù)進(jìn)行。根據(jù)環(huán)境噪聲源的特性，可優(yōu)化測量時段。分為固定聲源、交通噪聲源（流動聲源）。崇明區(qū)工業(yè)噪聲檢測價格</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。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細(xì)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(xué)評價，室內(nèi)空氣檢測深受客戶的喜愛。公司秉持誠信為本的經(jīng)營理念，在儀器儀表深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為重點，發(fā)揮人才優(yōu)勢，打造儀器儀表良好品牌。上海綠環(huán)商品檢測秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實”的經(jīng)營理念，全力打造公司的重點競爭力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2895877.html</p></div></div></div></div></div><div id="qproaho" class="page-right twoColRt"><div 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