氣動位置傳感器-壓力開關

發布日期：2024-05-22 作者：屹誠(cheng) 點擊：

氣(qi)壓(ya)(ya)力達到預置設定(ding)值，電(dian)(dian)(dian)氣(qi)觸點便接通或斷(duan)開的元(yuan)件稱為(wei)壓(ya)(ya)力開關。有時稱為(wei)壓(ya)(ya)力繼電(dian)(dian)(dian)器。它可(ke)用于(yu)檢測壓(ya)(ya)力的大小和有無，并(bing)能發出(chu)電(dian)(dian)(dian)信號，反饋(kui)給(gei)控(kong)(kong)制電(dian)(dian)(dian)路(lu)。如用于(yu)空(kong)氣(qi)壓(ya)(ya)縮機(ji)的自動(dong)啟停，用于(yu)壓(ya)(ya)力控(kong)(kong)制回(hui)路(lu)等。流量、溫(wen)度、液位(wei)元(yuan)…等其他物(wu)理(li)量(liang)，若(ruo)能轉(zhuan)化為壓力信號(hao)，也可用(yong)壓力開關對(dui)這(zhe)些物(wu)理(li)量(liang)的(de)變化進行控制。
按輸入氣(qi)(qi)壓(ya)(ya)力的大(da)小，可(ke)(ke)分(fen)成真(zhen)空型(xing)、低壓(ya)(ya)型(xing)、高壓(ya)(ya)型(xing)和混合壓(ya)(ya)型(xing)壓(ya)(ya)力開(kai)關(guan)。按輸入氣(qi)(qi)壓(ya)(ya)是(shi)否可(ke)(ke)調(diao)，可(ke)(ke)分(fen)成固(gu)定(ding)(ding)式(shi)和可(ke)(ke)調(diao)式(shi)。固(gu)定(ding)(ding)式(shi)壓(ya)(ya)力開(kai)關(guan)用于檢測某一固(gu)定(ding)(ding)氣(qi)(qi)壓(ya)(ya)力是(shi)否達到。可(ke)(ke)調(diao)式(shi)壓(ya)(ya)力開(kai)關(guan)的設(she)定(ding)(ding)壓(ya)(ya)力是(shi)可(ke)(ke)調(diao)的，當達到設(she)定(ding)(ding)壓(ya)(ya)力時，電觸(chu)點(dian)才接通(或斷開)。