一、電容器是什么元件

電容器是儲(chu)存(cun)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)量(liang)和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)能（電(dian)(dian)(dian)(dian)(dian)(dian)(dian)勢能）的元件。一個(ge)(ge)導體(ti)被(bei)另(ling)一個(ge)(ge)導體(ti)所包圍，或者由一個(ge)(ge)導體(ti)發出(chu)的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)場線全部終止(zhi)在(zai)另(ling)一個(ge)(ge)導體(ti)的導體(ti)系，稱為(wei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容器。當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容器的兩個(ge)(ge)極板(ban)之(zhi)間加(jia)上(shang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)時，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容器就會儲(chu)存(cun)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容器的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容量(liang)在(zai)數值上(shang)等于(yu)一個(ge)(ge)導電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極板(ban)上(shang)的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)荷量(liang)與兩個(ge)(ge)極板(ban)之(zhi)間的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)之(zhi)比(bi)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容器的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容量(liang)的基本單位(wei)是法拉（F）。在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)圖中(zhong)通常用字母C表示電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容元件。

電(dian)(dian)(dian)(dian)容器是電(dian)(dian)(dian)(dian)子設備中大(da)量使用(yong)(yong)的電(dian)(dian)(dian)(dian)子元件之一，所以(yi)被廣泛應用(yong)(yong)于隔直、耦合、旁(pang)路(lu)、濾波、調諧回路(lu)、能量轉換或儲能、控制(zhi)電(dian)(dian)(dian)(dian)路(lu)等方面。隨著新材料(liao)，新技術的出現，大(da)容量的電(dian)(dian)(dian)(dian)容可能會代(dai)替可充電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)池，而廣泛應用(yong)(yong)于各個領域。

該圖片由注冊用戶"天空之城"提供，版權聲明反饋

二、電容器的種類有哪些

根據分析統計，電容器主(zhu)要分為(wei)以下10類：

1、按照結(jie)構分三大類：固定電容器(qi)(qi)、可變(bian)電容器(qi)(qi)和微(wei)調電容器(qi)(qi)。

2、按電(dian)(dian)介質(zhi)分類(lei)：有機(ji)介質(zhi)電(dian)(dian)容(rong)(rong)器(qi)、無機(ji)介質(zhi)電(dian)(dian)容(rong)(rong)器(qi)、電(dian)(dian)解電(dian)(dian)容(rong)(rong)器(qi)、電(dian)(dian)熱電(dian)(dian)容(rong)(rong)器(qi)和空(kong)氣介質(zhi)電(dian)(dian)容(rong)(rong)器(qi)等。

3、按用途(tu)分(fen)有：高頻(pin)(pin)旁(pang)路電(dian)容(rong)(rong)器、低頻(pin)(pin)旁(pang)路電(dian)容(rong)(rong)器、濾(lv)波電(dian)容(rong)(rong)器、調諧電(dian)容(rong)(rong)器、高頻(pin)(pin)耦(ou)合(he)電(dian)容(rong)(rong)器、低頻(pin)(pin)耦(ou)合(he)電(dian)容(rong)(rong)器、小(xiao)型電(dian)容(rong)(rong)器。

4、按制造材料的(de)不同可以分為：瓷介(jie)電容(rong)、滌綸電容(rong)、電解(jie)電容(rong)、鉭(tan)電容(rong)，還有(you)先進的(de)聚丙烯電容(rong)等(deng)等(deng)。

5、高頻旁路：陶瓷電容(rong)(rong)器(qi)、云(yun)母電容(rong)(rong)器(qi)、玻璃膜電容(rong)(rong)器(qi)、滌綸電容(rong)(rong)器(qi)、玻璃釉電容(rong)(rong)器(qi)。

6、低頻旁(pang)路：紙介電容器(qi)、陶瓷電容器(qi)、鋁電解(jie)電容器(qi)、滌(di)綸電容器(qi)。

7、濾(lv)波：鋁電解(jie)電容(rong)(rong)器(qi)(qi)、紙介電容(rong)(rong)器(qi)(qi)、復合紙介電容(rong)(rong)器(qi)(qi)、液體鉭(tan)電容(rong)(rong)器(qi)(qi)。

8、調諧：陶瓷(ci)電容器(qi)(qi)、云母電容器(qi)(qi)、玻璃膜(mo)電容器(qi)(qi)、聚苯乙烯電容器(qi)(qi)。

9、低(di)耦合：紙介電(dian)容器(qi)(qi)、陶瓷電(dian)容器(qi)(qi)、鋁電(dian)解電(dian)容器(qi)(qi)、滌綸電(dian)容器(qi)(qi)、固體(ti)鉭(tan)電(dian)容器(qi)(qi)。

10、小(xiao)型電(dian)(dian)(dian)(dian)容(rong)(rong)：金屬(shu)(shu)化紙(zhi)介(jie)電(dian)(dian)(dian)(dian)容(rong)(rong)器(qi)、陶(tao)瓷電(dian)(dian)(dian)(dian)容(rong)(rong)器(qi)、鋁電(dian)(dian)(dian)(dian)解電(dian)(dian)(dian)(dian)容(rong)(rong)器(qi)、聚苯乙烯(xi)電(dian)(dian)(dian)(dian)容(rong)(rong)器(qi)、固體鉭電(dian)(dian)(dian)(dian)容(rong)(rong)器(qi)、玻璃釉電(dian)(dian)(dian)(dian)容(rong)(rong)器(qi)、金屬(shu)(shu)化滌綸電(dian)(dian)(dian)(dian)容(rong)(rong)器(qi)、聚丙烯(xi)電(dian)(dian)(dian)(dian)容(rong)(rong)器(qi)、云母電(dian)(dian)(dian)(dian)容(rong)(rong)器(qi)。