REXROTH壓力傳(chuan)感(gan)器(qi)(qi)內部機(ji)(ji)電(dian)(dian)變換(huan)(huan)原理(li)的(de)(de)不(bu)(bu)同，輸出的(de)(de)電(dian)(dian)量(liang)也各不(bu)(bu)相同。有(you)的(de)(de)是將機(ji)(ji)械量(liang)的(de)(de)變化(hua)(hua)變換(huan)(huan)為(wei)電(dian)(dian)動勢、電(dian)(dian)荷的(de)(de)變化(hua)(hua)，有(you)的(de)(de)是將機(ji)(ji)械振(zhen)動量(liang)的(de)(de)變化(hua)(hua)變換(huan)(huan)為(wei)電(dian)(dian)阻、電(dian)(dian)感(gan)等電(dian)(dian)參量(liang)的(de)(de)變化(hua)(hua)。一般說來(lai)，這些(xie)電(dian)(dian)量(liang)并不(bu)(bu)能(neng)直接(jie)被(bei)后(hou)續的(de)(de)顯(xian)示、記錄、分析(xi)儀(yi)器(qi)(qi)所(suo)接(jie)受。因此針對不(bu)(bu)同機(ji)(ji)電(dian)(dian)變換(huan)(huan)原理(li)的(de)(de)傳(chuan)感(gan)器(qi)(qi)，必(bi)須(xu)附以(yi)專配的(de)(de)測量(liang)線(xian)路。測量(liang)線(xian)路的(de)(de)作用是將傳(chuan)感(gan)器(qi)(qi)的(de)(de)輸出電(dian)(dian)量(liang)后(hou)變為(wei)后(hou)續顯(xian)示、分析(xi)儀(yi)器(qi)(qi)所(suo)能(neng)接(jie)受的(de)(de)一般電(dian)(dian)壓信號。

壓力(li)傳(chuan)感器(qi)(qi)是使(shi)用為廣(guang)泛的(de)一種傳(chuan)感器(qi)(qi)。傳(chuan)統的(de)壓力(li)傳(chuan)感器(qi)(qi)以機(ji)械(xie)結構型(xing)的(de)器(qi)(qi)件為主，以彈性(xing)元件的(de)形(xing)變指示壓力(li)，但這種結構尺(chi)寸大、質量重(zhong)，不能提供電學輸出。隨(sui)著半(ban)導體技(ji)術(shu)的(de)發展，半(ban)導體壓力(li)傳(chuan)感器(qi)(qi)也應運而生。其(qi)特(te)點是體積(ji)小、質量輕、準(zhun)確度(du)高、溫度(du)特(te)性(xing)好。特(te)別是隨(sui)著MEMS技(ji)術(shu)的(de)發展，半(ban)導體傳(chuan)感器(qi)(qi)向(xiang)著微型(xing)化發展，而且其(qi)功耗小、可靠性(xing)高。

力士樂REXROTH壓力傳感器特點(dian)：

→測量液壓系統(tong)中的壓力

→10至 630 bar 的 8 個測量(liang)范(fan)圍

→帶薄膜測(ce)量單元的傳感器

→接觸介質的不銹(xiu)鋼(gang)部件

→通過(guo)較(jiao)高的(de)斷裂(lie)壓力、反(fan)極性保護(hu)、過(guo)壓保護(hu)及短路保護(hu)實(shi)現運行安全(quan)性

→精度等級 0.5

→非重復性(xing) < 0.05 %

→較大(da)的工(gong)作(zuo)溫度范圍 –40 至 +85 °C

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