*IFM易福門PI2794壓力傳感器工作原理
*IFM易福(fu)門PI2794壓力傳(chuan)(chuan)感(gan)器(qi)工(gong)作原(yuan)理(li)
電(dian)(dian)(dian)容(rong)(rong)(rong)式傳(chuan)(chuan)感(gan)器(qi)的(de)(de)(de)初始電(dian)(dian)(dian)容(rong)(rong)(rong)量很小,而連接傳(chuan)(chuan)感(gan)器(qi)和電(dian)(dian)(dian)子線路(lu)的(de)(de)(de)引線電(dian)(dian)(dian)纜電(dian)(dian)(dian)容(rong)(rong)(rong)、電(dian)(dian)(dian)子線路(lu)的(de)(de)(de)雜(za)散電(dian)(dian)(dian)容(rong)(rong)(rong)以及(ji)電(dian)(dian)(dian)容(rong)(rong)(rong)極板與周圍導體構成的(de)(de)(de)電(dian)(dian)(dian)容(rong)(rong)(rong)等寄生電(dian)(dian)(dian)容(rong)(rong)(rong)卻較大。寄生電(dian)(dian)(dian)容(rong)(rong)(rong)的(de)(de)(de)存(cun)在不但降低了(le)測(ce)量靈(ling)敏度,而且引起非線性輸出(chu)。由于寄生電(dian)(dian)(dian)容(rong)(rong)(rong)是隨(sui)機變化的(de)(de)(de).因而使傳(chuan)(chuan)感(gan)器(qi)處于不穩定的(de)(de)(de)工(gong)作狀(zhuang)態.影響測(ce)量準確度。
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