航(hang)(hang)空航(hang)(hang)天(tian)領(ling)(ling)域對密封性(xing)(xing)能(neng)要(yao)求(qiu)極高，標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)漏(lou)(lou)(lou)(lou)孔(kong)在此類場景中(zhong)用于(yu)校準(zhun)(zhun)(zhun)(zhun)航(hang)(hang)天(tian)器密封件(jian)檢漏(lou)(lou)(lou)(lou)設(she)備(bei)，確(que)保(bao)燃料艙(cang)、艙(cang)體(ti)等關(guan)鍵部件(jian)無泄(xie)(xie)漏(lou)(lou)(lou)(lou)，確(que)保(bao)飛(fei)行**與任務順利執行。在**設(she)備(bei)領(ling)(ling)域，標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)漏(lou)(lou)(lou)(lou)孔(kong)用于(yu)校準(zhun)(zhun)(zhun)(zhun)氧艙(cang)的(de)(de)檢漏(lou)(lou)(lou)(lou)儀器，確(que)保(bao)艙(cang)體(ti)密封性(xing)(xing)能(neng)達(da)標(biao)(biao)，避(bi)免(mian)氧氣泄(xie)(xie)漏(lou)(lou)(lou)(lou)引發**問題，是確(que)保(bao)患者(zhe)**的(de)(de)重(zhong)要(yao)計量(liang)工(gong)具(ju)。標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)漏(lou)(lou)(lou)(lou)孔(kong)的(de)(de)重(zhong)復性(xing)(xing)是重(zhong)要(yao)性(xing)(xing)能(neng)指(zhi)標(biao)(biao)，指(zhi)在相(xiang)同條件(jian)下多次測量(liang)的(de)(de)泄(xie)(xie)漏(lou)(lou)(lou)(lou)率偏(pian)差程度。重(zhong)復性(xing)(xing)越好(hao)，表(biao)明漏(lou)(lou)(lou)(lou)孔(kong)性(xing)(xing)能(neng)越穩定，適用于(yu)對精度要(yao)求(qiu)高的(de)(de)長(chang)期校準(zhun)(zhun)(zhun)(zhun)工(gong)作(zuo)。標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)漏(lou)(lou)(lou)(lou)孔(kong)在電池密封檢漏(lou)(lou)(lou)(lou)中(zhong)經(jing)常使(shi)用。廣(guang)東正壓標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)漏(lou)(lou)(lou)(lou)孔(kong)范圍(wei)

系列漏(lou)(lou)孔(kong)為(wei)(wei)通(tong)道(dao)(dao)型定(ding)(ding)(ding)值(zhi)標準(zhun)漏(lou)(lou)孔(kong)，漏(lou)(lou)孔(kong)元件為(wei)(wei)微通(tong)道(dao)(dao)毛(mao)細管，其漏(lou)(lou)率(lv)(lv)或校準(zhun)精度(du)0.1g/a，支持客戶漏(lou)(lou)率(lv)(lv)或年(nian)泄漏(lou)(lou)量(liang)定(ding)(ding)(ding)制，如1g/a，2.5g/a，5g/a，…，也(ye)可(ke)以定(ding)(ding)(ding)制其他漏(lou)(lou)率(lv)(lv)單位，如Pa·m?/s(≥5x10-6Pa·m3/s)，大漏(lou)(lou)率(lv)(lv)10~100g/a亦可(ke)定(ding)(ding)(ding)制。本產(chan)(chan)(chan)品(pin)結合了(le)國內(nei)外定(ding)(ding)(ding)值(zhi)漏(lou)(lou)孔(kong)的特點專門研制的一套知識產(chan)(chan)(chan)權的標準(zhun)儀(yi)器，該(gai)產(chan)(chan)(chan)品(pin)很好地適應國內(nei)外制冷等行(xing)業對產(chan)(chan)(chan)品(pin)檢漏(lou)(lou)過程嚴(yan)格把控的需求。冷媒標準(zhun)漏(lou)(lou)孔(kong)(定(ding)(ding)(ding)值(zhi))特點是(shi)漏(lou)(lou)率(lv)(lv)穩定(ding)(ding)(ding)、可(ke)重復充灌、使用成本較低(di)等廣(guang)東正壓標準(zhun)漏(lou)(lou)孔(kong)范圍(wei)標準(zhun)漏(lou)(lou)孔(kong)是(shi)計量(liang)檢測工作的重要基礎器具 。

標(biao)準(zhun)(zhun)漏(lou)(lou)(lou)孔(kong)(kong)(kong)(kong)(kong)的(de)(de)(de)(de)常見(jian)問題，外(wai)部標(biao)準(zhun)(zhun)漏(lou)(lou)(lou)孔(kong)(kong)(kong)(kong)(kong)校準(zhun)(zhun)，檢(jian)(jian)(jian)漏(lou)(lou)(lou)儀(yi)(yi)(yi)的(de)(de)(de)(de)外(wai)部校準(zhun)(zhun)是(shi)(shi)非常重要(yao)(yao)的(de)(de)(de)(de)。考慮到各個(ge)(ge)廠(chang)(chang)家(jia)對自(zi)己(ji)利益的(de)(de)(de)(de)保護，目前對標(biao)準(zhun)(zhun)漏(lou)(lou)(lou)孔(kong)(kong)(kong)(kong)(kong)存在比(bi)較大的(de)(de)(de)(de)兩(liang)個(ge)(ge)誤區(qu)：誤區(qu)1：多個(ge)(ge)檢(jian)(jian)(jian)漏(lou)(lou)(lou)儀(yi)(yi)(yi)廠(chang)(chang)家(jia)特別是(shi)(shi)國外(wai)廠(chang)(chang)家(jia)說只能用自(zi)己(ji)的(de)(de)(de)(de)漏(lou)(lou)(lou)孔(kong)(kong)(kong)(kong)(kong)，包括(kuo)外(wai)置(zhi)與(yu)內置(zhi)，這(zhe)是(shi)(shi)一(yi)個(ge)(ge)典型(xing)性的(de)(de)(de)(de)謬誤說法。因(yin)為氦(hai)質(zhi)譜(pu)檢(jian)(jian)(jian)漏(lou)(lou)(lou)儀(yi)(yi)(yi)準(zhun)(zhun)不(bu)(bu)準(zhun)(zhun)，應符(fu)合標(biao)準(zhun)(zhun)漏(lou)(lou)(lou)孔(kong)(kong)(kong)(kong)(kong)。而標(biao)準(zhun)(zhun)漏(lou)(lou)(lou)孔(kong)(kong)(kong)(kong)(kong)準(zhun)(zhun)不(bu)(bu)準(zhun)(zhun)，是(shi)(shi)**標(biao)準(zhun)(zhun)規定的(de)(de)(de)(de)檢(jian)(jian)(jian)測機構(gou)而不(bu)(bu)是(shi)(shi)廠(chang)(chang)家(jia)。誤區(qu)2就(jiu)是(shi)(shi)檢(jian)(jian)(jian)漏(lou)(lou)(lou)儀(yi)(yi)(yi)內置(zhi)漏(lou)(lou)(lou)孔(kong)(kong)(kong)(kong)(kong)檢(jian)(jian)(jian)測通過(guo)，檢(jian)(jian)(jian)漏(lou)(lou)(lou)儀(yi)(yi)(yi)就(jiu)沒有(you)問題。這(zhe)也是(shi)(shi)一(yi)個(ge)(ge)認識的(de)(de)(de)(de)誤區(qu)，實際上每一(yi)臺(tai)檢(jian)(jian)(jian)漏(lou)(lou)(lou)儀(yi)(yi)(yi)要(yao)(yao)做到寬量程(cheng)都精確(que)是(shi)(shi)非常困難的(de)(de)(de)(de)。

蘭(lan)州510所建(jian)立了(le)國內測(ce)量范(fan)(fan)圍較寬，不確定(ding)(ding)度較小的(de)正(zheng)(zheng)(zheng)壓漏(lou)率(lv)校(xiao)(xiao)(xiao)(xiao)準(zhun)(zhun)(zhun)裝(zhuang)(zhuang)置(zhi)。計量院(yuan)在(zai)2010年(nian)前后也(ye)搭建(jian)了(le)一套試(shi)驗(yan)(yan)用正(zheng)(zheng)(zheng)壓漏(lou)孔(kong)校(xiao)(xiao)(xiao)(xiao)準(zhun)(zhun)(zhun)裝(zhuang)(zhuang)置(zhi)。并與(yu)今年(nian)正(zheng)(zheng)(zheng)式立項建(jian)立正(zheng)(zheng)(zheng)壓漏(lou)孔(kong)校(xiao)(xiao)(xiao)(xiao)準(zhun)(zhun)(zhun)裝(zhuang)(zhuang)置(zhi)，涵蓋了(le)專題中第二，三種正(zheng)(zheng)(zheng)壓漏(lou)孔(kong)的(de)校(xiao)(xiao)(xiao)(xiao)準(zhun)(zhun)(zhun)。上海(hai)市計量測(ce)試(shi)技術研究院(yuan)在(zai)2004年(nian)建(jian)立國內一套正(zheng)(zheng)(zheng)常開展量值溯源(yuan)的(de)正(zheng)(zheng)(zheng)壓漏(lou)率(lv)校(xiao)(xiao)(xiao)(xiao)準(zhun)(zhun)(zhun)校(xiao)(xiao)(xiao)(xiao)準(zhun)(zhun)(zhun)裝(zhuang)(zhuang)置(zhi)，并通過(guo)CNAC實驗(yan)(yan)室認證(zheng)。近(jin)幾年(nian)來該裝(zhuang)(zhuang)置(zhi)每年(nian)完(wan)成(cheng)超過(guo)500件標準(zhun)(zhun)(zhun)漏(lou)孔(kong)的(de)校(xiao)(xiao)(xiao)(xiao)準(zhun)(zhun)(zhun)服(fu)務，在(zai)長期的(de)校(xiao)(xiao)(xiao)(xiao)準(zhun)(zhun)(zhun)過(guo)程(cheng)中驗(yan)(yan)證(zheng)了(le)裝(zhuang)(zhuang)置(zhi)和校(xiao)(xiao)(xiao)(xiao)準(zhun)(zhun)(zhun)規(gui)范(fan)(fan)在(zai)量值的(de)不確定(ding)(ding)度、長期穩定(ding)(ding)性方面(mian)的(de)成(cheng)熟。為國內起草該范(fan)(fan)圍的(de)正(zheng)(zheng)(zheng)壓漏(lou)孔(kong)的(de)校(xiao)(xiao)(xiao)(xiao)準(zhun)(zhun)(zhun)規(gui)范(fan)(fan)做好(hao)了(le)技術準(zhun)(zhun)(zhun)備。標準(zhun)(zhun)(zhun)漏(lou)孔(kong)受氣流影響(xiang)需(xu)穩定(ding)(ding)狀(zhuang)態使用 。

10-7Pa·m3/s量級以下的(de)(de)漏(lou)(lou)(lou)(lou)孔(kong)，在正常(chang)情況下是(shi)不(bu)需要關閉出口(kou)閥門的(de)(de)，但是(shi)由于客(ke)戶不(bu)清(qing)楚漏(lou)(lou)(lou)(lou)孔(kong)的(de)(de)一(yi)(yi)些結構(gou)，通常(chang)會關閉閥門。對于滲氦型漏(lou)(lou)(lou)(lou)孔(kong)，如果(guo)長時間關閉閥門會積攢一(yi)(yi)定的(de)(de)氦氣，使(shi)得滲透元件的(de)(de)邊界條(tiao)件遭(zao)到破壞，使(shi)用(yong)時短(duan)時間內(nei)漏(lou)(lou)(lou)(lou)率值(zhi)便會偏大，打開閥門經(jing)過(guo)一(yi)(yi)段(duan)時間(24小時)平衡后,漏(lou)(lou)(lou)(lou)率值(zhi)會還原(yuan)。滲氦型標(biao)準(zhun)漏(lou)(lou)(lou)(lou)孔(kong)的(de)(de)應用(yong)包(bao)括氦質(zhi)(zhi)譜檢(jian)(jian)漏(lou)(lou)(lou)(lou)儀校(xiao)準(zhun)、作為氦質(zhi)(zhi)譜檢(jian)(jian)漏(lou)(lou)(lou)(lou)儀內(nei)部標(biao)準(zhun)漏(lou)(lou)(lou)(lou)孔(kong)、氦質(zhi)(zhi)譜檢(jian)(jian)漏(lou)(lou)(lou)(lou)儀小的(de)(de)可檢(jian)(jian)漏(lou)(lou)(lou)(lou)率校(xiao)準(zhun)以及實際漏(lou)(lou)(lou)(lou)孔(kong)漏(lou)(lou)(lou)(lou)率的(de)(de)確(que)定等。標(biao)準(zhun)漏(lou)(lou)(lou)(lou)孔(kong)使(shi)用(yong)壓力不(bu)能超(chao)過(guo)額(e)定值(zhi) 。河南鹵(lu)素漏(lou)(lou)(lou)(lou)孔(kong)特點(dian)

標(biao)準(zhun)漏孔在半導體制造檢漏中經(jing)常使用(yong)。廣東正壓標(biao)準(zhun)漏孔范圍(wei)

不同(tong)的(de)(de)(de)氣體對(dui)于標(biao)準(zhun)(zhun)漏孔(kong)的(de)(de)(de)泄(xie)(xie)漏率(lv)有著(zhu)一定影響，通常校準(zhun)(zhun)以氮氣或氦氣為介質，實(shi)際使用時需(xu)要根據檢(jian)測氣體的(de)(de)(de)性(xing)質來進(jin)行修正，提高檢(jian)測結果的(de)(de)(de)準(zhun)(zhun)確(que)性(xing)。標(biao)準(zhun)(zhun)漏孔(kong)的(de)(de)(de)安裝(zhuang)方(fang)式應(ying)該符合操作規程，以確(que)保連接緊密(mi)、無(wu)額外(wai)的(de)(de)(de)泄(xie)(xie)漏，避免因安裝(zhuang)不當影響校準(zhun)(zhun)或者檢(jian)測結果。部(bu)分漏孔(kong)的(de)(de)(de)設計有專屬接口，方(fang)便與不同(tong)設備對(dui)接。隨(sui)著(zhu)檢(jian)漏技(ji)術的(de)(de)(de)發(fa)展，標(biao)準(zhun)(zhun)漏孔(kong)的(de)(de)(de)性(xing)能不斷提升，出現了(le)可調(diao)節泄(xie)(xie)漏率(lv)、智能化(hua)監控等新型產品，滿足了(le)更(geng)復雜(za)場景下的(de)(de)(de)計量(liang)需(xu)求。廣東正壓標(biao)準(zhun)(zhun)漏孔(kong)范圍