電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感元(yuan)件，也稱為電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感器，是(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路中的(de)(de)基本(ben)組(zu)件，主要(yao)功能(neng)是(shi)儲存磁場能(neng)量并依(yi)據其(qi)內部磁通(tong)量的(de)(de)變化(hua)產(chan)(chan)生感應(ying)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動勢(shi)。當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)通(tong)過電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感線(xian)(xian)圈時(shi)，會在(zai)其(qi)中建立磁場，當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)改變時(shi)，磁場會隨之變化(hua)，根據法拉第電(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁感應(ying)定律，這種(zhong)變化(hua)會產(chan)(chan)生電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動勢(shi)，阻(zu)止電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)的(de)(de)快速變化(hua)，起(qi)到“阻(zu)抗”交(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)、放大信號或進行濾波的(de)(de)作用(yong)(yong)。此(ci)外(wai)，一體(ti)成型(xing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感生產(chan)(chan)工藝，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感還(huan)有(you)諧振特性，貼(tie)片電(dian)(dian)(dian)(dian)(dian)(dian)(dian)感一體(ti)成型(xing)，可用(yong)(yong)于頻率選擇和信號隔離。在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)、變壓器、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源、無線(xian)(xian)通(tong)信等(deng)領域都有(you)廣泛應(ying)用(yong)(yong)。

電(dian)(dian)感(gan)的(de)價(jia)格(ge)因(yin)多種因(yin)素(su)而異，包(bao)括電(dian)(dian)感(gan)的(de)類(lei)型(xing)（如(ru)色(se)環電(dian)(dian)感(gan)、貼片(pian)電(dian)(dian)感(gan)、大電(dian)(dian)感(gan)或小信(xin)號電(dian)(dian)感(gan)）、規格(ge)（如(ru)電(dian)(dian)感(gan)值、工作(zuo)頻率(lv)、封(feng)裝形(xing)式）、品牌、材料和生產成本等(deng)。一般來說，小型(xing)的(de)普(pu)通色(se)環電(dian)(dian)感(gan)可能(neng)(neng)幾(ji)毛錢(qian)一個，而的(de)精密電(dian)(dian)感(gan)或大功(gong)率(lv)電(dian)(dian)感(gan)價(jia)格(ge)可以(yi)(yi)達到幾(ji)十元甚至上(shang)百元。購買時(shi)需根據具(ju)體需求選擇(ze)，從幾(ji)元到幾(ji)百元都有可能(neng)(neng)。在電(dian)(dian)商平(ping)臺上(shang)搜索時(shi)，可以(yi)(yi)輸入電(dian)(dian)感(gan)型(xing)號或參數，查看不同供(gong)應商的(de)報價(jia)，浙江電(dian)(dian)感(gan)，以(yi)(yi)獲(huo)得(de)的(de)價(jia)格(ge)信(xin)息(xi)。