一、電唱機的唱頭是什么東西

電唱機的唱頭(tou)是(shi)(shi)它(ta)的關(guan)鍵設備之一(yi)，它(ta)直(zhi)接(jie)影(ying)響黑膠唱片的音色。唱頭(tou)里(li)有磁(ci)鐵(tie)，有線(xian)圈，不(bu)論是(shi)(shi)磁(ci)鐵(tie)振動線(xian)圈固定(ding)、或(huo)是(shi)(shi)磁(ci)鐵(tie)固定(ding)線(xian)圈振動，都會因此(ci)(ci)而切(qie)割(ge)磁(ci)力線(xian)，產生電流(liu)(liu)，而此(ci)(ci)電流(liu)(liu)的大小是(shi)(shi)隨著(zhu)音樂(le)訊(xun)號振動的大小發出的。將這些電流(liu)(liu)轉換成(cheng)電壓形式，輸(shu)入(ru)前(qian)級(ji)，再經過(guo)前(qian)級(ji)里(li)一(yi)個RlAA等化線(xian)路還原(yuan)，繼(ji)續進入(ru)訊(xun)號放大部(bu)分，最(zui)后就從喇叭發出音樂(le)了。

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二、電唱機唱頭的種類都有哪些

電(dian)唱(chang)機(ji)(ji)的(de)(de)唱(chang)頭(tou)是(shi)將唱(chang)針的(de)(de)機(ji)(ji)械(xie)振動轉變成(cheng)電(dian)信號的(de)(de)換(huan)能(neng)器，它(ta)有多種換(huan)能(neng)方法，因此唱(chang)頭(tou)的(de)(de)類型也眾(zhong)多，主要有以下幾種：

1、動鐵式

動鐵(tie)(tie)式(shi)唱(chang)頭在(zai)針(zhen)桿尾端鑲有小(xiao)塊(kuai)純(chun)(chun)(chun)鐵(tie)(tie)作振動子，純(chun)(chun)(chun)鐵(tie)(tie)位置處在(zai)磁路(lu)空氣隙中(zhong)，當針(zhen)尖在(zai)聲槽(cao)紋(wen)路(lu)里運行時，純(chun)(chun)(chun)鐵(tie)(tie)也(ye)在(zai)空氣隙中(zhong)不(bu)停(ting)地運動，從而改變了磁路(lu)內(nei)的(de)(de)磁阻(zu)(zu)，使繞在(zai)磁鐵(tie)(tie)極靴上(shang)的(de)(de)線(xian)圈產生感應電壓。動鐵(tie)(tie)式(shi)唱(chang)頭的(de)(de)振動系統質(zhi)地輕盈(ying)，機械阻(zu)(zu)抗能做得很小(xiao)，有利于電聲技術指標的(de)(de)提高。

2、動磁式

動(dong)(dong)(dong)(dong)(dong)(dong)(dong)磁(ci)就是活動(dong)(dong)(dong)(dong)(dong)(dong)(dong)磁(ci)石(shi)(shi)的意(yi)思(si)，唱(chang)(chang)(chang)(chang)片轉動(dong)(dong)(dong)(dong)(dong)(dong)(dong)時帶動(dong)(dong)(dong)(dong)(dong)(dong)(dong)唱(chang)(chang)(chang)(chang)針(zhen)(zhen)振(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)，唱(chang)(chang)(chang)(chang)針(zhen)(zhen)振(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)活動(dong)(dong)(dong)(dong)(dong)(dong)(dong)了針(zhen)(zhen)桿，針(zhen)(zhen)桿尾部安裝一顆小磁(ci)石(shi)(shi)，唱(chang)(chang)(chang)(chang)針(zhen)(zhen)振(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)亦同時振(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)小磁(ci)石(shi)(shi)，而(er)(er)發聲線圈(quan)(quan)(quan)繞著鈇(fu)芯(xin)受磁(ci)石(shi)(shi)振(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)干擾(rao)，因而(er)(er)感(gan)應出(chu)交(jiao)流電信號而(er)(er)發聲，這就是動(dong)(dong)(dong)(dong)(dong)(dong)(dong)磁(ci)唱(chang)(chang)(chang)(chang)頭(tou)(tou)的原理。由于線圈(quan)(quan)(quan)及鈇(fu)芯(xin)固定在唱(chang)(chang)(chang)(chang)頭(tou)(tou)內，所以(yi)(yi)線圈(quan)(quan)(quan)可繞較多而(er)(er)不受唱(chang)(chang)(chang)(chang)針(zhen)(zhen)活動(dong)(dong)(dong)(dong)(dong)(dong)(dong)重量(liang)限制，因此動(dong)(dong)(dong)(dong)(dong)(dong)(dong)磁(ci)唱(chang)(chang)(chang)(chang)頭(tou)(tou)輸出(chu)較大，約有(you)1.5至4mv，而(er)(er)且(qie)唱(chang)(chang)(chang)(chang)針(zhen)(zhen)和線圈(quan)(quan)(quan)是分(fen)離的兩個(ge)個(ge)體，所以(yi)(yi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)磁(ci)唱(chang)(chang)(chang)(chang)頭(tou)(tou)多數(shu)設計是唱(chang)(chang)(chang)(chang)針(zhen)(zhen)和線圈(quan)(quan)(quan)可以(yi)(yi)分(fen)開，以(yi)(yi)便唱(chang)(chang)(chang)(chang)針(zhen)(zhen)損耗后(hou)可以(yi)(yi)隨意(yi)更換。

3、動圈式

動(dong)(dong)圈(quan)(quan)(quan)唱(chang)(chang)頭(tou)即活動(dong)(dong)音圈(quan)(quan)(quan)之意，一如動(dong)(dong)磁(ci)頭(tou)的(de)(de)針(zhen)(zhen)(zhen)尖及針(zhen)(zhen)(zhen)桿(gan)結(jie)構，只是(shi)唱(chang)(chang)針(zhen)(zhen)(zhen)尾不是(shi)安裝磁(ci)石，而(er)(er)是(shi)安裝線(xian)(xian)圈(quan)(quan)(quan)，而(er)(er)針(zhen)(zhen)(zhen)桿(gan)活動(dong)(dong)帶動(dong)(dong)線(xian)(xian)圈(quan)(quan)(quan)，磁(ci)石就(jiu)固(gu)定在(zai)線(xian)(xian)圈(quan)(quan)(quan)左(zuo)右，針(zhen)(zhen)(zhen)桿(gan)帶動(dong)(dong)線(xian)(xian)圈(quan)(quan)(quan)而(er)(er)受磁(ci)石感應線(xian)(xian)圈(quan)(quan)(quan)出交(jiao)流電信號(hao)而(er)(er)發(fa)聲(sheng)，這(zhe)就(jiu)是(shi)動(dong)(dong)圈(quan)(quan)(quan)的(de)(de)原理。由于(yu)針(zhen)(zhen)(zhen)桿(gan)的(de)(de)動(dong)(dong)能很(hen)(hen)小，線(xian)(xian)圈(quan)(quan)(quan)也只能用很(hen)(hen)經很(hen)(hen)細的(de)(de)線(xian)(xian)圈(quan)(quan)(quan)，因此線(xian)(xian)圈(quan)(quan)(quan)感應交(jiao)流電信號(hao)很(hen)(hen)小，只有0.15至0.4mv左(zuo)右。動(dong)(dong)圈(quan)(quan)(quan)唱(chang)(chang)頭(tou)由于(yu)發(fa)聲(sheng)線(xian)(xian)圈(quan)(quan)(quan)是(shi)直接感受振動(dong)(dong)而(er)(er)發(fa)聲(sheng)，所以很(hen)(hen)多(duo)人認(ren)為動(dong)(dong)圈(quan)(quan)(quan)唱(chang)(chang)頭(tou)聲(sheng)音較動(dong)(dong)磁(ci)唱(chang)(chang)頭(tou)好。

4、光電式

光電式唱(chang)頭的針桿上裝有一塊極其(qi)輕薄的遮(zhe)光片(pian)(pian)，當針尖在針槽里運(yun)行時，位于(yu)微型燈泡和光敏器件之間的遮(zhe)光片(pian)(pian)亦(yi)隨之不停地運(yun)動，由于(yu)光通量(liang)的變化而使光敏器件輸出相應的電信號。

5、陶瓷式

陶(tao)(tao)瓷式唱頭的換能器(qi)用(yong)具有壓(ya)電效應(ying)的陶(tao)(tao)瓷材(cai)料制成。該唱頭工藝(yi)簡單，價格不(bu)高，但所需針壓(ya)較大，對唱盤使用(yong)壽(shou)命不(bu)利。

三、電唱機唱頭通用嗎

不通用。

不同類型的電唱機唱(chang)(chang)(chang)頭輸(shu)出電壓有所不(bu)同，隨(sui)便使用(yong)不(bu)合適(shi)型號(hao)的(de)唱(chang)(chang)(chang)頭，可能會導致電路損(sun)壞，影響(xiang)電唱(chang)(chang)(chang)機(ji)的(de)使用(yong)。一般建(jian)議大家根據電唱(chang)(chang)(chang)機(ji)的(de)型號(hao)選擇合適(shi)類型的(de)唱(chang)(chang)(chang)頭。