常見的壓力表

波(bo)(bo)(bo)登(deng)(deng)(deng)管(guan)(guan)(guan)壓力表(biao)：波(bo)(bo)(bo)登(deng)(deng)(deng)管(guan)(guan)(guan)敏(min)感元件是彎(wan)成圓形(xing)(xing)，截(jie)面(mian)積顯(xian)橢圓形(xing)(xing)的(de)(de)(de)彈(dan)(dan)性(xing)C形(xing)(xing)管(guan)(guan)(guan)。測(ce)量介質的(de)(de)(de)壓力作用在波(bo)(bo)(bo)動管(guan)(guan)(guan)的(de)(de)(de)內側(ce)，這樣波(bo)(bo)(bo)登(deng)(deng)(deng)管(guan)(guan)(guan)橢圓截(jie)面(mian)會趨(qu)于(yu)(yu)(yu)圓形(xing)(xing)截(jie)面(mian)。由(you)于(yu)(yu)(yu)波(bo)(bo)(bo)登(deng)(deng)(deng)管(guan)(guan)(guan)微小(xiao)變形(xing)(xing)，形(xing)(xing)成一定的(de)(de)(de)環應力。此環應力會使波(bo)(bo)(bo)登(deng)(deng)(deng)管(guan)(guan)(guan)向外延(yan)伸。由(you)于(yu)(yu)(yu)彈(dan)(dan)性(xing)波(bo)(bo)(bo)登(deng)(deng)(deng)管(guan)(guan)(guan)頭(tou)部沒有固定，其就會產生小(xiao)小(xiao)變形(xing)(xing)，其變形(xing)(xing)的(de)(de)(de)大(da)小(xiao)取決于(yu)(yu)(yu)測(ce)量介質的(de)(de)(de)壓力大(da)小(xiao)。波(bo)(bo)(bo)登(deng)(deng)(deng)管(guan)(guan)(guan)的(de)(de)(de)變形(xing)(xing)通(tong)過(guo)機芯(xin)間接地(di)由(you)指(zhi)針顯(xian)示測(ce)量介質的(de)(de)(de)壓力。

防爆數(shu)字(zi)（指針）顯示(shi)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)表(biao)(biao)：精度高(gao)、高(gao)穩定性(xing)，heim測(ce)(ce)力(li)(li)(li)(li)傳感(gan)器廠家，誤差≤1%， 內電(dian)(dian)源、微功耗、不銹鋼外殼，防護堅(jian)固，heim測(ce)(ce)力(li)(li)(li)(li)傳感(gan)器怎么用(yong)(yong)，美觀精致(zhi)。防爆數(shu)字(zi)顯示(shi)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)表(biao)(biao)廣泛應用(yong)(yong)于(yu)(yu)石(shi)油、化工、冶金、電(dian)(dian)站等工業部門或(huo)機電(dian)(dian)設備配套(tao)中測(ce)(ce)量(liang)有爆l炸危險(xian)的(de)各種流體介(jie)(jie)質(zhi)的(de)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)。真(zhen)空(kong)(kong)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)表(biao)(biao)：真(zhen)空(kong)(kong)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)表(biao)(biao)用(yong)(yong)于(yu)(yu)測(ce)(ce)量(liang)對鋼，銅及(ji)銅合金無腐(fu)(fu)蝕(shi)作用(yong)(yong)，無爆l炸危險(xian)的(de)不結晶，不凝固的(de)液(ye)體，氣(qi)體或(huo)蒸汽介(jie)(jie)質(zhi)的(de)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)或(huo)負壓(ya)(ya)(ya)(ya)(ya)。耐震真(zhen)空(kong)(kong)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)表(biao)(biao)表(biao)(biao)用(yong)(yong)于(yu)(yu)振動(dong)和(he)壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)有波動(dong)下，測(ce)(ce)量(liang)無腐(fu)(fu)蝕(shi)，無結晶的(de)介(jie)(jie)質(zhi)的(de)負壓(ya)(ya)(ya)(ya)(ya)。電(dian)(dian)接(jie)點壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)真(zhen)空(kong)(kong)表(biao)(biao)和(he)電(dian)(dian)接(jie)點真(zhen)空(kong)(kong)表(biao)(biao)用(yong)(yong)于(yu)(yu)對銅及(ji)銅合金無腐(fu)(fu)蝕(shi)作用(yong)(yong)，無爆l炸危險(xian)的(de)非結晶、不凝固的(de)液(ye)體，氣(qi)體等介(jie)(jie)質(zhi)的(de)（壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)）和(he)負壓(ya)(ya)(ya)(ya)(ya)的(de)測(ce)(ce)量(liang)，當壓(ya)(ya)(ya)(ya)(ya)力(li)(li)(li)(li)達到(dao)預定值時，借助接(jie)點裝(zhuang)置，能接(jie)通或(huo)斷開控制電(dian)(dian)路，同時發出電(dian)(dian)信號。

隔(ge)膜(mo)壓(ya)(ya)力表(biao)(biao)工(gong)作原理： ? ? 當用(yong)隔(ge)膜(mo)壓(ya)(ya)力表(biao)(biao)測量(liang)壓(ya)(ya)力時，被測量(liang)工(gong)作介質直接作用(yong)在隔(ge)離膜(mo)片上，膜(mo)片向(xiang)上產生向(xiang)上的變形，通過彈(dan)簧管內(nei)的灌充液將介質壓(ya)(ya)力傳遞給彈(dan)簧管，使彈(dan)簧管末(mo)端(duan)產生彈(dan)性形變，借(jie)助(zhu)連桿機(ji)構帶動機(ji)芯(xin)齒輪軸(zhou)轉動，heim測力傳感器(qi)，從而使指針在刻度盤上指示出(chu)被測壓(ya)(ya)力值(zhi)。

膜片壓力表工作原理：

在(zai)壓(ya)力作(zuo)用下(xia)，被(bei)測(ce)量(liang)工作(zuo)介質直(zhi)接作(zuo)用在(zai)彈性膜(mo)片(pian)上，膜(mo)片(pian)向上（測(ce)量(liang)正壓(ya)）或者(zhe)向下(xia)（測(ce)量(liang)負壓(ya)）產生彈性形變(bian)，借助(zhu)固(gu)定(ding)在(zai)膜(mo)片(pian)中心的連桿機(ji)構帶動機(ji)芯(xin)齒輪軸旋(xuan)轉，從而使(shi)指(zhi)針在(zai)刻度盤(pan)上指(zhi)示出被(bei)測(ce)壓(ya)力值。