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渦(wo)街飽和(he)蒸(zheng)汽流(liu)(liu)(liu)量(liang)計(ji)是(shi)基于(yu)卡曼渦(wo)街原理，主(zhu)要表現為(wei)在流(liu)(liu)(liu)動(dong)的(de)(de)(de)(de)流(liu)(liu)(liu)體中設置非流(liu)(liu)(liu)線型旋渦(wo)發(fa)(fa)生(sheng)體（阻流(liu)(liu)(liu)體），從(cong)旋渦(wo)發(fa)(fa)生(sheng)體兩(liang)側交替產生(sheng)兩(liang)列有規則(ze)的(de)(de)(de)(de)旋渦(wo)。廣泛(fan)適用(yong)(yong)于(yu)石油、化工(gong)、冶金、熱(re)(re)力、紡織、造紙(zhi)等行(xing)業(ye)對過(guo)熱(re)(re)蒸(zheng)汽、飽和(he)蒸(zheng)汽、壓縮空氣(qi)和(he)一般氣(qi)體、液體的(de)(de)(de)(de)計(ji)量(liang)和(he)控制。由于(yu)渦(wo)街流(liu)(liu)(liu)量(liang)計(ji)本身的(de)(de)(de)(de)結構(gou)和(he)材(cai)料限制，為(wei)了(le)減少(shao)熱(re)(re)收縮等原因產生(sheng)的(de)(de)(de)(de)漏液的(de)(de)(de)(de)可(ke)能性，主(zhu)體一般裝有法蘭(lan)盤，而(er)不用(yong)(yong)螺紋接頭。為(wei)了(le)避(bi)免冷熱(re)(re)的(de)(de)(de)(de)影響，在流(liu)(liu)(liu)量(liang)計(ji)前置放大器部分(fen)采用(yong)(yong)加長管(guan)來安(an)(an)裝。但(dan)是(shi)，有時(shi)也可(ke)根據情況安(an)(an)裝散熱(re)(re)片(pian)。本體，三角柱、法蘭(lan)盤需使用(yong)(yong)...

美(mei)國CASH調(diao)(diao)(diao)壓(ya)(ya)(ya)閥(fa)(fa)(fa)的(de)工(gong)作原理如下:高壓(ya)(ya)(ya)介質(zhi)通過一(yi)個(ge)小孔充到一(yi)個(ge)相對較(jiao)大(da)的(de)腔里(li)實現(xian)減壓(ya)(ya)(ya)，實際上是靠截流減壓(ya)(ya)(ya)，膜片(pian)(pian)或活(huo)塞的(de)兩面一(yi)面是出(chu)口腔，一(yi)面是人為(wei)給(gei)的(de)壓(ya)(ya)(ya)力(li)，并且控制(zhi)小孔大(da)小的(de)閥(fa)(fa)(fa)桿和膜片(pian)(pian)(活(huo)塞)相連，這樣只(zhi)要給(gei)一(yi)個(ge)固定(ding)的(de)壓(ya)(ya)(ya)力(li)，那么出(chu)口腔的(de)壓(ya)(ya)(ya)力(li)就會一(yi)直等于這個(ge)壓(ya)(ya)(ya)力(li)，這個(ge)認為(wei)給(gei)定(ding)的(de)壓(ya)(ya)(ya)力(li)可以有(you)彈(dan)簧或氣(qi)源或液(ye)壓(ya)(ya)(ya)源來提供(gong)。美(mei)國CASH調(diao)(diao)(diao)壓(ya)(ya)(ya)閥(fa)(fa)(fa)根據使(shi)用特點(dian)的(de)分(fen)類：美(mei)國CASH調(diao)(diao)(diao)壓(ya)(ya)(ya)閥(fa)(fa)(fa)根據使(shi)用特點(dian)分(fen):緊湊型調(diao)(diao)(diao)壓(ya)(ya)(ya)閥(fa)(fa)(fa)、中(zhong)等流量(liang)調(diao)(diao)(diao)壓(ya)(ya)(ya)閥(fa)(fa)(fa)、常規高壓(ya)(ya)(ya)調(diao)(diao)(diao)壓(ya)(ya)(ya)閥(fa)(fa)(fa)、二級調(diao)(diao)(diao)壓(ya)(ya)(ya)閥(fa)(fa)(fa)、低壓(ya)(ya)(ya)大(da)流量(liang)調(diao)(diao)(diao)壓(ya)(ya)(ya)閥(fa)(fa)(fa)。緊湊型調(diao)(diao)(diao)壓(ya)(ya)(ya)閥(fa)(fa)(fa):PR系...

美(mei)國(guo)Carver壓(ya)(ya)(ya)(ya)片(pian)(pian)(pian)機(ji)是(shi)(shi)將顆(ke)粒(li)或粉狀(zhuang)(zhuang)物(wu)料(liao)置于模孔(kong)內由沖(chong)頭壓(ya)(ya)(ya)(ya)制成(cheng)(cheng)片(pian)(pian)(pian)劑的(de)機(ji)器。美(mei)國(guo)Carver壓(ya)(ya)(ya)(ya)片(pian)(pian)(pian)機(ji),是(shi)(shi)由一副(fu)沖(chong)模組成(cheng)(cheng)，沖(chong)頭作(zuo)上(shang)(shang)(shang)下(xia)運動將顆(ke)粒(li)狀(zhuang)(zhuang)的(de)物(wu)料(liao)壓(ya)(ya)(ya)(ya)制成(cheng)(cheng)片(pian)(pian)(pian)狀(zhuang)(zhuang)，這一機(ji)器稱單沖(chong)壓(ya)(ya)(ya)(ya)片(pian)(pian)(pian)機(ji)，以后發展成(cheng)(cheng)電動花籃式(shi)壓(ya)(ya)(ya)(ya)片(pian)(pian)(pian)機(ji)。這兩種(zhong)壓(ya)(ya)(ya)(ya)片(pian)(pian)(pian)機(ji)的(de)工(gong)作(zuo)原理仍然(ran)是(shi)(shi)以手工(gong)壓(ya)(ya)(ya)(ya)模為(wei)基礎的(de)單向(xiang)壓(ya)(ya)(ya)(ya)片(pian)(pian)(pian)，即(ji)壓(ya)(ya)(ya)(ya)片(pian)(pian)(pian)時下(xia)沖(chong)固定不動，僅上(shang)(shang)(shang)沖(chong)運動加壓(ya)(ya)(ya)(ya)。這種(zhong)壓(ya)(ya)(ya)(ya)片(pian)(pian)(pian)的(de)方式(shi)，由于上(shang)(shang)(shang)下(xia)受力不一致，造成(cheng)(cheng)片(pian)(pian)(pian)劑內部的(de)密(mi)(mi)度(du)不均(jun)勻，易產生裂片(pian)(pian)(pian)等問題(ti)。美(mei)國(guo)Carver壓(ya)(ya)(ya)(ya)片(pian)(pian)(pian)機(ji)上(shang)(shang)(shang)下(xia)沖(chong)同時均(jun)勻地(di)加壓(ya)(ya)(ya)(ya)，使藥物(wu)顆(ke)粒(li)中的(de)空氣有充裕的(de)時間逸(yi)出模孔(kong)，提高了(le)片(pian)(pian)(pian)劑密(mi)(mi)度(du)的(de)...

美國Carver壓(ya)(ya)(ya)(ya)(ya)片(pian)(pian)(pian)機(ji)將顆(ke)粒(li)狀(zhuang)物壓(ya)(ya)(ya)(ya)(ya)制成(cheng)(cheng)直徑不(bu)大于(yu)13mm的(de)(de)圓(yuan)形(xing)(xing)、異形(xing)(xing)和帶有文字(zi)、符(fu)號，圖形(xing)(xing)片(pian)(pian)(pian)狀(zhuang)物的(de)(de)自動連續(xu)生產設(she)備。壓(ya)(ya)(ya)(ya)(ya)片(pian)(pian)(pian)機(ji)是由一副沖(chong)(chong)(chong)模組成(cheng)(cheng)，沖(chong)(chong)(chong)頭(tou)作上下運(yun)動將顆(ke)粒(li)狀(zhuang)的(de)(de)物料壓(ya)(ya)(ya)(ya)(ya)制成(cheng)(cheng)片(pian)(pian)(pian)狀(zhuang)，這一機(ji)器稱壓(ya)(ya)(ya)(ya)(ya)片(pian)(pian)(pian)機(ji)。美國Carver壓(ya)(ya)(ya)(ya)(ya)片(pian)(pian)(pian)機(ji)的(de)(de)沖(chong)(chong)(chong)頭(tou)和沖(chong)(chong)(chong)模在(zai)壓(ya)(ya)(ya)(ya)(ya)片(pian)(pian)(pian)過程(cheng)中(zhong)受(shou)的(de)(de)壓(ya)(ya)(ya)(ya)(ya)力很大，常用軸承鋼(如crl5等)制作，并熱處(chu)理以提高(gao)其硬(ying)度。沖(chong)(chong)(chong)頭(tou)的(de)(de)類型很多，沖(chong)(chong)(chong)頭(tou)的(de)(de)形(xing)(xing)狀(zhuang)決定(ding)于(yu)藥(yao)片(pian)(pian)(pian)所需的(de)(de)形(xing)(xing)狀(zhuang)。按沖(chong)(chong)(chong)模結構形(xing)(xing)狀(zhuang)可劃(hua)分為(wei)圓(yuan)形(xing)(xing)、異形(xing)(xing)(包括多邊形(xing)(xing)及曲線形(xing)(xing));沖(chong)(chong)(chong)頭(tou)斷面的(de)(de)形(xing)(xing)狀(zhuang)有平面形(xing)(xing)、斜邊形(xing)(xing)、淺凹(ao)形(xing)(xing)、深凹(ao)形(xing)(xing)及綜(zong)合形(xing)(xing)等。平面形(xing)(xing)...

美(mei)(mei)國BARTON巴(ba)頓(dun)液位(wei)計由電(dian)子倉(cang)內電(dian)子電(dian)路產生(sheng)一起始(shi)脈(mo)(mo)沖，此起始(shi)脈(mo)(mo)沖在波(bo)導(dao)絲(si)(si)(si)中(zhong)傳輸時(shi)(shi)，同時(shi)(shi)產生(sheng)了一沿波(bo)導(dao)絲(si)(si)(si)方(fang)向前進的(de)旋轉(zhuan)磁(ci)場，當這(zhe)個(ge)磁(ci)場與磁(ci)環或浮球中(zhong)的(de)*磁(ci)場相遇時(shi)(shi)，產生(sheng)磁(ci)致伸縮效(xiao)應，使波(bo)導(dao)絲(si)(si)(si)發生(sheng)扭動，這(zhe)一扭動被(bei)安裝在電(dian)子倉(cang)內的(de)拾能(neng)機構所感知并(bing)轉(zhuan)換(huan)成相應的(de)電(dian)流脈(mo)(mo)沖，通(tong)過電(dian)子電(dian)路計算(suan)出兩個(ge)脈(mo)(mo)沖之間的(de)時(shi)(shi)間差(cha)，即可測(ce)(ce)出被(bei)測(ce)(ce)的(de)位(wei)移和液位(wei)。美(mei)(mei)國BARTON巴(ba)頓(dun)液位(wei)計穩定性好，滿度、零(ling)位(wei)長期穩定性可達0.1%FS/年。在補償溫度0~70℃范圍內，溫度飄移低于0.1%FS，在整個(ge)允(yun)許工作(zuo)...

3151高(gao)精度(du)(du)智(zhi)能(neng)型壓(ya)(ya)力(li)變(bian)送器是(shi)一種接受壓(ya)(ya)力(li)變(bian)量(liang),經傳(chuan)感(gan)(gan)轉(zhuan)換后,將壓(ya)(ya)力(li)變(bian)化量(liang)按一定比例轉(zhuan)換為(wei)標準輸(shu)出(chu)信(xin)(xin)號(hao)(hao)的(de)(de)儀(yi)表。變(bian)送器的(de)(de)輸(shu)出(chu)信(xin)(xin)號(hao)(hao)傳(chuan)輸(shu)到中控(kong)室進行壓(ya)(ya)力(li)指示、記錄或(huo)控(kong)制。它(ta)主要由測(ce)壓(ya)(ya)元件(jian)傳(chuan)感(gan)(gan)器（也稱作壓(ya)(ya)力(li)傳(chuan)感(gan)(gan)器）、測(ce)量(liang)電(dian)路和過(guo)程連接件(jian)三部分組成。它(ta)能(neng)將測(ce)壓(ya)(ya)元件(jian)傳(chuan)感(gan)(gan)器感(gan)(gan)受到的(de)(de)氣體(ti)(ti)、液(ye)體(ti)(ti)等(deng)(deng)物理壓(ya)(ya)力(li)參數轉(zhuan)變(bian)成標準的(de)(de)電(dian)信(xin)(xin)號(hao)(hao)（如(ru)4~20mADC等(deng)(deng)），以供(gong)給指示報警儀(yi)、記錄儀(yi)、調節器等(deng)(deng)二(er)次儀(yi)表進行測(ce)量(liang)、指示和過(guo)程調節。3151高(gao)精度(du)(du)智(zhi)能(neng)型壓(ya)(ya)力(li)變(bian)送器的(de)(de)原理是(shi)將水壓(ya)(ya)這種壓(ya)(ya)力(li)的(de)(de)力(li)學信(xin)(xin)號(hao)(hao)轉(zhuan)變(bian)成電(dian)流（...

為(wei)利用外力提升(sheng)產品技(ji)(ji)術能級(ji)，上(shang)海自動化(hua)(hua)儀(yi)表有限(xian)公司(si)日前(qian)與上(shang)海核(he)(he)(he)(he)(he)工程(cheng)研(yan)(yan)(yan)究(jiu)設(she)計(ji)(ji)院（簡稱(cheng)“上(shang)海核(he)(he)(he)(he)(he)工院”）簽(qian)訂(ding)《核(he)(he)(he)(he)(he)電(dian)模擬機主/應控制室盤(pan)臺設(she)備合(he)同》（簡稱(cheng)“核(he)(he)(he)(he)(he)電(dian)模擬機項(xiang)目”），標(biao)志著雙方(fang)在核(he)(he)(he)(he)(he)電(dian)領域的合(he)作更加深入、技(ji)(ji)術合(he)作更為(wei)密切。上(shang)海核(he)(he)(he)(he)(he)工程(cheng)研(yan)(yan)(yan)究(jiu)設(she)計(ji)(ji)院是以核(he)(he)(he)(he)(he)電(dian)工程(cheng)研(yan)(yan)(yan)究(jiu)設(she)計(ji)(ji)為(wei)主的研(yan)(yan)(yan)究(jiu)設(she)計(ji)(ji)院，在核(he)(he)(he)(he)(he)電(dian)工程(cheng)研(yan)(yan)(yan)究(jiu)設(she)計(ji)(ji)領域處于國內水平(ping)，在AP1000消化(hua)(hua)吸(xi)收、CAP1000標(biao)準設(she)計(ji)(ji)、CAP1400研(yan)(yan)(yan)發及試驗、核(he)(he)(he)(he)(he)電(dian)主設(she)備和關(guan)鍵材料研(yan)(yan)(yan)制等方(fang)面已取得實質性進展(zhan)和成果。上(shang)海自動化(hua)(hua)儀(yi)表有限(xian)公司(si)與上(shang)海核(he)(he)(he)(he)(he)工院有...

上自(zi)(zi)儀三廠熱電偶工作原理上自(zi)(zi)儀三廠熱電偶作為測(ce)(ce)量溫(wen)度的傳感(gan)器，通常和顯示儀表(biao)(biao)、記錄儀表(biao)(biao)和電子調節器配套(tao)使(shi)用。它可(ke)以直(zhi)接測(ce)(ce)量各種(zhong)生(sheng)產過程中從0℃～1800℃范圍內的液(ye)體、蒸汽和氣(qi)體介質以及(ji)固(gu)體的表(biao)(biao)面溫(wen)度。根據國家(jia)規定(ding)，我廠從1987年起(qi)開(kai)始生(sheng)產符合IEC標準(zhun)分度號的鉑銠30-鉑銠6、鉑銠10-鉑、鎳(nie)鉻-鎳(nie)硅、鎳(nie)鉻-銅(tong)鎳(nie)、銅(tong)-銅(tong)鎳(nie)、鐵-銅(tong)鎳(nie)等型(xing)式熱電偶，應符合JB/T3238-1999標準(zhun)。上自(zi)(zi)儀三廠熱電偶工作原理：兩種(zhong)不同成(cheng)分的導(dao)體兩端(duan)(duan)經焊接、形成(cheng)回(hui)路，直(zhi)接測(ce)(ce)溫(wen)端(duan)(duan)叫測(ce)(ce)量端(duan)(duan)，接線(xian)...