對講(jiang)機(ji)l密封防水(shui)測(ce)試(shi)

對(dui)(dui)(dui)講(jiang)機(ji)(ji)主要(yao)應用(yong)(yong)在公(gong)l安、民航、運(yun)輸、水利、鐵路、制(zhi)造、建筑、服務(wu)等行業，鎮江板，用(yong)(yong)于團體成員間(jian)的(de)(de)聯絡和指揮調度，mea，以(yi)提高溝通效率和提高處理突發事件的(de)(de)快速反應能力。隨著對(dui)(dui)(dui)講(jiang)機(ji)(ji)進入民用(yong)(yong)市場(chang)，人們外出旅(lv)游、購物也開始越來越多地使用(yong)(yong)對(dui)(dui)(dui)講(jiang)機(ji)(ji)。隨著使用(yong)(yong)環(huan)境的(de)(de)復雜，對(dui)(dui)(dui)講(jiang)機(ji)(ji)必須要(yao)有密封防水功(gong)能。

氣密性檢測儀的特點(dian)：

1.數(shu)據儲存(cun) 儀(yi)器可儲存(cun)當(dang)天24小時(shi)的測試數(shu)據  

2.USB接口  支持(chi)U盤(pan)儲存以及導出檢測記錄到電腦(nao)上

3.檢測時(shi)間(jian) 可設置各(ge)階段(duan)測試時(shi)間(jian)(0.1s-999s)

包裝袋密封(feng)性檢(jian)(jian)測方(fang)法(fa)(fa)有(you)哪些？密封(feng)性測試具(ju)體(ti)(ti)(ti)方(fang)法(fa)(fa)不一，國內(nei)(nei)生產實(shi)踐中(zhong)常用GB/T15171——1994標準。1.著色液(ye)浸透法(fa)(fa)這種方(fang)法(fa)(fa)通(tong)常用來檢(jian)(jian)驗(yan)(yan)空(kong)氣含量很少的復合袋的密封(feng)性。方(fang)法(fa)(fa)如下；密封(feng)檢(jian)(jian)測將實(shi)驗(yan)(yan)液(ye)體(ti)(ti)(ti)(與濾紙有(you)明顯色差的著色水溶(rong)液(ye))倒(dao)入(ru)擦掙的試驗(yan)(yan)樣袋內(nei)(nei)，密封(feng)后將袋子平(ping)放(fang)在濾紙上，5min后觀察濾紙上是否有(you)試驗(yan)(yan)液(ye)體(ti)(ti)(ti)滲漏出來，然后將袋子翻轉(zhuan)，對其另一面講行測試。2.水中(zhong)減壓法(fa)(fa)(真空(kong)法(fa)(fa))這種方(fang)法(fa)(fa)又包括真空(kong)泵法(fa)(fa)和真空(kong)發生器法(fa)(fa)，通(tong)常用來檢(jian)(jian)驗(yan)(yan)空(kong)氣含量較多(duo)的復合袋。

氦質譜(pu)檢(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)儀(yi)(yi)(yi)檢(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)原理(li)及(ji)方式(shi)：氦質譜(pu)檢(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)儀(yi)(yi)(yi)的(de)檢(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)方式(shi)，氦質譜(pu)檢(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)儀(yi)(yi)(yi)的(de)檢(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)方式(shi)通常(chang)(chang)有兩(liang)種，雙(shuang)極(ji)板價格，一(yi)種為常(chang)(chang)規檢(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)，石墨(mo)雙(shuang)極(ji)板，另一(yi)種為逆(ni)(ni)擴散(san)檢(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)。逆(ni)(ni)擴散(san)檢(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)是(shi)把被檢(jian)(jian)(jian)(jian)件(jian)接(jie)在(zai)分(fen)子(zi)(zi)泵(beng)出氣(qi)(qi)(qi)(qi)口(kou)一(yi)端，漏(lou)(lou)(lou)(lou)入(ru)的(de)氦氣(qi)(qi)(qi)(qi)由分(fen)子(zi)(zi)泵(beng)出氣(qi)(qi)(qi)(qi)口(kou)逆(ni)(ni)著泵(beng)的(de)排氣(qi)(qi)(qi)(qi)方向進(jin)入(ru)安(an)裝在(zai)泵(beng)的(de)進(jin)氣(qi)(qi)(qi)(qi)口(kou)端的(de)質譜(pu)管內而被檢(jian)(jian)(jian)(jian)測。這一(yi)檢(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)方式(shi)是(shi)基于分(fen)子(zi)(zi)泵(beng)對不(bu)(bu)同質量的(de)氣(qi)(qi)(qi)(qi)體具(ju)(ju)有不(bu)(bu)同壓(ya)(ya)縮比(氣(qi)(qi)(qi)(qi)體在(zai)分(fen)子(zi)(zi)泵(beng)出氣(qi)(qi)(qi)(qi)口(kou)壓(ya)(ya)強(qiang)與(yu)進(jin)氣(qi)(qi)(qi)(qi)口(kou)壓(ya)(ya)強(qiang)之(zhi)比)即利(li)用不(bu)(bu)同氣(qi)(qi)(qi)(qi)體的(de)逆(ni)(ni)擴散(san)程度不(bu)(bu)同程度而設計(ji)的(de)。逆(ni)(ni)擴散(san)原理(li)：逆(ni)(ni)擴散(san)方式(shi)檢(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)允(yun)許(xu)被檢(jian)(jian)(jian)(jian)件(jian)內壓(ya)(ya)強(qiang)較(jiao)高(gao)，氦質譜(pu)檢(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)儀(yi)(yi)(yi)可達300Pa(一(yi)般常(chang)(chang)規檢(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)儀(yi)(yi)(yi)為0.05Pa以下(xia))，適(shi)合檢(jian)(jian)(jian)(jian)大型容器(qi)或有大漏(lou)(lou)(lou)(lou)的(de)器(qi)件(jian)，也適(shi)合吸檢(jian)(jian)(jian)(jian)漏(lou)(lou)(lou)(lou)。逆(ni)(ni)擴散(san)方式(shi)還具(ju)(ju)有質譜(pu)管不(bu)(bu)易受污染，燈絲(si)壽命(ming)長(chang)等優點(dian)。