音(yin)(yin)響(xiang)(xiang)氣密(mi)(mi)性(xing)檢(jian)測的(de)原理：音(yin)(yin)響(xiang)(xiang)氣密(mi)(mi)性(xing)檢(jian)測中間有(you)下(xia)凹的(de)音(yin)(yin)響(xiang)(xiang)膜(mo)，且音(yin)(yin)響(xiang)(xiang)膜(mo)中間有(you)許多(duo)小口，我(wo)們可以先(xian)將(jiang)有(you)音(yin)(yin)響(xiang)(xiang)膜(mo)的(de)那一面向上(shang)，放入(ru)模具中，檢(jian)測時(shi)上(shang)方(fang)(fang)器(qi)具會(hui)(hui)向下(xia)移(yi)l動卡在(zai)音(yin)(yin)響(xiang)(xiang)膜(mo)上(shang)方(fang)(fang)固定(ding)；2.當儀(yi)器(qi)啟動的(de)時(shi)候儀(yi)器(qi)會(hui)(hui)通(tong)過上(shang)方(fang)(fang)器(qi)具往音(yin)(yin)響(xiang)(xiang)里(li)面充(chong)氣，同時(shi)儀(yi)器(qi)氣壓(ya)會(hui)(hui)慢慢往上(shang)升，當氣壓(ya)充(chong)入(ru)到設定(ding)值(zhi)的(de)時(shi)候，音(yin)(yin)響(xiang)(xiang)內部將(jiang)處于一個恒定(ding)的(de)狀(zhuang)態(tai)，板，這時(shi)候傳(chuan)感(gan)器(qi)會(hui)(hui)判定(ding)流(liu)量(liang)值(zhi)來檢(jian)測出回音(yin)(yin)筒的(de)流(liu)量(liang)大小是否符(fu)合標準(zhun)。

如(ru)(ru)(ru)何維(wei)(wei)護(hu)(hu)氣密性(xing)檢(jian)(jian)測(ce)儀(yi)？今天，英諾太科(ke)就如(ru)(ru)(ru)何維(wei)(wei)護(hu)(hu)氣密性(xing)檢(jian)(jian)測(ce)儀(yi)？做個詳細說明，具體步(bu)驟(zou)如(ru)(ru)(ru)下：1、探頭(tou)清(qing)潔(jie)：利用(yong)附送(song)的防(fang)護(hu)(hu)罩防(fang)止(zhi)灰塵(chen)、水汽、l油(you)(you)脂阻塞探頭(tou)，電堆，在使用(yong)本(ben)儀(yi)器前，均(jun)要(yao)檢(jian)(jian)查探頭(tou)和(he)防(fang)護(hu)(hu)罩確無灰塵(chen)或(huo)油(you)(you)脂。(1)拉下防(fang)護(hu)(hu)罩(2)用(yong)工業毛巾或(huo)壓縮空氣清(qing)潔(jie)防(fang)護(hu)(hu)罩.(3).如(ru)(ru)(ru)果探頭(tou)本(ben)身也(ye)臟，可浸入像酒精等(deng)溫和(he)清(qing)洗劑幾秒鐘，金屬(shu)雙(shuang)極板價格(ge)，然后用(yong)壓縮空氣或(huo)工業毛巾清(qing)潔(jie)，嚴禁用(yong)像汽l油(you)(you)、礦物(wu)油(you)(you)等(deng)溶劑，這樣(yang)易降(jiang)低儀(yi)器靈(ling)敏度。

1、差壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)法(fa)氣(qi)密(mi)性(xing)檢(jian)測(ce)(ce)(ce)(ce)原理：差壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)法(fa)氣(qi)密(mi)性(xing)檢(jian)測(ce)(ce)(ce)(ce)是(shi)利用(yong)氣(qi)體流(liu)(liu)量公式(shi)通過(guo)測(ce)(ce)(ce)(ce)量容(rong)(rong)器(qi)(qi)(qi)內(nei)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)力的(de)變化來計(ji)算泄漏(lou)量的(de)檢(jian)測(ce)(ce)(ce)(ce)方法(fa)。密(mi)閉的(de)容(rong)(rong)器(qi)(qi)(qi)由(you)于泄漏(lou)，必然造成容(rong)(rong)器(qi)(qi)(qi)內(nei)氣(qi)體質量的(de)流(liu)(liu)失，使得容(rong)(rong)器(qi)(qi)(qi)內(nei)原有(you)的(de)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)力減(jian)低(di)，因此可以通過(guo)測(ce)(ce)(ce)(ce)量容(rong)(rong)器(qi)(qi)(qi)內(nei)氣(qi)體壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)力降低(di)的(de)數值計(ji)算出(chu)實際容(rong)(rong)器(qi)(qi)(qi)泄漏(lou)的(de)氣(qi)體量。差壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)法(fa)氣(qi)密(mi)性(xing)檢(jian)測(ce)(ce)(ce)(ce)的(de)工作循環包括(kuo)4個過(guo)程(cheng)，雙極板價格，即(ji)充(chong)氣(qi)過(guo)程(cheng)、平衡過(guo)程(cheng)、檢(jian)測(ce)(ce)(ce)(ce)過(guo)程(cheng)和(he)排氣(qi)過(guo)程(cheng)。(1)充(chong)氣(qi)過(guo)程(cheng)：將系統壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)力調定(ding)到測(ce)(ce)(ce)(ce)試壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)力，打開充(chong)氣(qi)閥、測(ce)(ce)(ce)(ce)漏(lou)閥，標準(zhun)容(rong)(rong)器(qi)(qi)(qi)和(he)被測(ce)(ce)(ce)(ce)工件充(chong)入壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)力等(deng)于測(ce)(ce)(ce)(ce)試壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)力的(de)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)縮空氣(qi)，由(you)于氣(qi)體流(liu)(liu)動(dong)的(de)影響，此時(shi)系統內(nei)部壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)力、溫度都會波動(dong)，必須(xu)持續充(chong)氣(qi)直至標準(zhun)容(rong)(rong)器(qi)(qi)(qi)、被測(ce)(ce)(ce)(ce)工件充(chong)氣(qi)完(wan)全。