電(dian)阻(zu)(zu)有很多種(zhong)。根(gen)據電(dian)阻(zu)(zu)材料,可分(fen)為(wei)繞線(xian)型和(he)非繞線(xian)型。非繞線(xian)型分(fen)為(wei)合(he)成(cheng)型和(he)薄膜(mo)型。薄膜(mo)型包(bao)括碳膜(mo)型、金屬膜(mo)型、金屬箔型、金屬氧(yang)化膜(mo)型、玻(bo)璃釉膜(mo)型等(deng);根(gen)據電(dian)阻(zu)(zu)的特殊用途,可分(fen)為(wei)熱敏(min)(min)(min)電(dian)阻(zu)(zu)、壓(ya)敏(min)(min)(min)電(dian)阻(zu)(zu)、光敏(min)(min)(min)電(dian)阻(zu)(zu)、力敏(min)(min)(min)電(dian)阻(zu)(zu)、磁敏(min)(min)(min)電(dian)阻(zu)(zu)、氣敏(min)(min)(min)電(dian)阻(zu)(zu)、濕敏(min)(min)(min)電(dian)阻(zu)(zu),
滑動電阻和熱敏電阻是汽車上常(chang)見的電阻。
汽車電(dian)(dian)(dian)阻(zu)的作用是限(xian)制(zhi)電(dian)(dian)(dian)路內(nei)電(dian)(dian)(dian)流(liu)(liu)。在電(dian)(dian)(dian)子系(xi)統中,電(dian)(dian)(dian)阻(zu)的作用非常重要。除作為元(yuan)件(jian)的標準電(dian)(dian)(dian)阻(zu)外,其(qi)他(ta)各部件(jian)都(dou)有一(yi)個可影響電(dian)(dian)(dian)路電(dian)(dian)(dian)壓(ya)和電(dian)(dian)(dian)流(liu)(liu)的電(dian)(dian)(dian)阻(zu)值。 固定電(dian)(dian)(dian)阻(zu)器(qi)和可變電(dian)(dian)(dian)阻(zu)器(qi)在機動車電(dian)(dian)(dian)子系(xi)統內(nei)使用。
以下(xia)是對其的擴展介(jie)紹:、
1、電(dian)(dian)(dian)(dian)阻(zu)(zu)的介紹(shao):電(dian)(dian)(dian)(dian)阻(zu)(zu)是描述(shu)導(dao)(dao)體導(dao)(dao)電(dian)(dian)(dian)(dian)性能的物理量,用R表示。電(dian)(dian)(dian)(dian)阻(zu)(zu)的大(da)小(xiao)可以用來衡量導(dao)(dao)體對電(dian)(dian)(dian)(dian)流阻(zu)(zu)礙作用的強弱,即導(dao)(dao)電(dian)(dian)(dian)(dian)性能的好壞。電(dian)(dian)(dian)(dian)阻(zu)(zu)的量值與導(dao)(dao)體的材(cai)料(liao)、形狀、體積以及周圍環境等(deng)因素有關。
2、電阻(zu)的(de)分(fen)類:不同導(dao)體的(de)電阻(zu)按(an)其(qi)性(xing)質的(de)不同還(huan)可分(fen)為兩(liang)種類型。一類稱為線性(xing)電阻(zu)或歐(ou)姆電阻(zu),滿足歐(ou)姆定律; 另一類稱為非(fei)線性(xing)電阻(zu),不滿足歐(ou)姆定律。
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