什么是空(kong)(kong)(kong)心線圈(quan)？空(kong)(kong)(kong)心線圈(quan)由兩部分組成(cheng)(cheng)，即空(kong)(kong)(kong)心線圈(quan)。空(kong)(kong)(kong)心顧名思義是指中心什么都(dou)不是，線圈(quan)是指電(dian)線一根一根地(di)纏(chan)繞起來(lai)，電(dian)線之間是絕緣的(de)(de)。當電(dian)流(liu)(liu)流(liu)(liu)過(guo)導線時，線圈(quan)周圍的(de)(de)磁場可以產(chan)生(sheng)磁場，磁場強度和流(liu)(liu)過(guo)線圈(quan)的(de)(de)電(dian)流(liu)(liu)與線圈(quan)匝數(shu)成(cheng)(cheng)正比。

　　在(zai)一定的(de)磁(ci)場(chang)中(zhong)，用(yong)線(xian)(xian)圈(quan)切割磁(ci)力線(xian)(xian)，同樣的(de)磁(ci)場(chang)可(ke)以轉(zhuan)化為電(dian)能。利(li)用(yong)這種磁(ci)電(dian)轉(zhuan)換原理，可(ke)以制作繼電(dian)器(qi)，電(dian)機，馬達(da)，無線(xian)(xian)設備，喇叭等(deng)器(qi)件。導線(xian)(xian)材料(liao)可(ke)以是銅，鐵，鋁，金(jin)等(deng)金(jin)屬器(qi)件，線(xian)(xian)圈(quan)的(de)中(zhong)心(xin)可(ke)以插(cha)入金(jin)屬磁(ci)性器(qi)件中(zhong)以增強(qiang)其磁(ci)場(chang)，當線(xian)(xian)圈(quan)中(zhong)心(xin)只有(you)塑料(liao)骨(gu)架或(huo)沒(mei)有(you)骨(gu)架時形(xing)成空心(xin)線(xian)(xian)圈(quan)，空心(xin)線(xian)(xian)圈(quan)應(ying)用(yong)廣泛，為了滿足(zu)多(duo)種需要，它被(bei)設計成圓(yuan)形(xing)，方形(xing)，橢圓(yuan)形(xing)和多(duo)種異常形(xing)狀。