芒果视频下载

數字電位器行業簡介

一、電位器怎么接線

電(dian)(dian)(dian)位(wei)器(qi)是一(yi)(yi)種(zhong)電(dian)(dian)(dian)子元器(qi)件，一(yi)(yi)般具有三(san)(san)個引(yin)出端(duan)，由滑動(dong)軸(zhou)（滑片(pian)）、電(dian)(dian)(dian)阻(zu)體(ti)、外殼電(dian)(dian)(dian)阻(zu)體(ti)以及(ji)三(san)(san)個引(yin)出端(duan)等組成(cheng)，旋轉滑動(dong)軸(zhou)阻(zu)值(zhi)會(hui)發生變化并且按(an)照(zhao)(zhao)某(mou)種(zhong)變化規律變化，同時在在輸(shu)出端(duan)獲得與(yu)位(wei)移量成(cheng)一(yi)(yi)定(ding)關系(xi)的電(dian)(dian)(dian)阻(zu)值(zhi)或其他物理量。如(ru)果按(an)照(zhao)(zhao)按(an)阻(zu)值(zhi)輸(shu)出函數(shu)特性來區分(fen)(fen)電(dian)(dian)(dian)位(wei)器(qi)的話可分(fen)(fen)為直線(xian)式(shi)電(dian)(dian)(dian)位(wei)器(qi)、指(zhi)數(shu)式(shi)電(dian)(dian)(dian)位(wei)器(qi)和(he)對數(shu)式(shi)電(dian)(dian)(dian)位(wei)器(qi)三(san)(san)種(zhong)。

電(dian)位器(qi)的接線(xian)方法(fa)是(shi)：對于一(yi)般的電(dian)位器(qi)，靠(kao)近中(zhong)心的是(shi)滑(hua)(hua)片(pian)，中(zhong)心頭里面就(jiu)是(shi)一(yi)根(gen)電(dian)阻絲(si)(si)，跟電(dian)阻絲(si)(si)兩端兩個(ge)(ge)(ge)引(yin)腳直接連(lian)起來，這兩個(ge)(ge)(ge)引(yin)腳分別連(lian)接輸入信號和(he)地（有(you)些不接），比如(ru)一(yi)個(ge)(ge)(ge)引(yin)腳連(lian)輸入信號，另(ling)一(yi)個(ge)(ge)(ge)管腳接地，此時這電(dian)阻絲(si)(si)兩段上就(jiu)有(you)了總(zong)的電(dian)阻值(zhi)，如(ru)果(guo)(guo)用滑(hua)(hua)片(pian)在這根(gen)電(dian)阻絲(si)(si)上來回滑(hua)(hua)動就(jiu)可以獲(huo)得變化的阻值(zhi)了，但是(shi)如(ru)果(guo)(guo)輸入和(he)輸出信號接反(fan)，那(nei)么滑(hua)(hua)片(pian)滑(hua)(hua)動方向與阻值(zhi)變化相反(fan)。

二、電位器的作用是什么

1、用作分壓器

電(dian)(dian)(dian)(dian)(dian)(dian)位器(qi)是一個連續可(ke)(ke)調的電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)器(qi)，當(dang)調節電(dian)(dian)(dian)(dian)(dian)(dian)位器(qi)的轉(zhuan)柄(bing)或滑柄(bing)時，動觸點在電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)體上滑動。此時在電(dian)(dian)(dian)(dian)(dian)(dian)位器(qi)的輸出端(duan)可(ke)(ke)獲得與(yu)電(dian)(dian)(dian)(dian)(dian)(dian)位器(qi)外加電(dian)(dian)(dian)(dian)(dian)(dian)壓和(he)可(ke)(ke)動臂(bei)轉(zhuan)角或行程成一定關系的輸出電(dian)(dian)(dian)(dian)(dian)(dian)壓。

2、用作變阻器

電(dian)(dian)位器(qi)(qi)用(yong)作變(bian)阻(zu)器(qi)(qi)時，應把(ba)它接成兩端器(qi)(qi)件，這(zhe)樣花電(dian)(dian)位器(qi)(qi)的行(xing)程范圍內，便可(ke)獲得(de)一個(ge)平滑(hua)連(lian)續變(bian)化的電(dian)(dian)阻(zu)值。

3、用作電流控制器

當電位(wei)器作為電流控(kong)制器使用時，其(qi)中一個選定的電流輸出端(duan)必須是滑動(dong)觸點引出端(duan)。

感興趣的話可以到電位器十大品牌查(cha)看更多的信(xin)息(xi)哦！

三、電位器三個引腳怎么接

兩邊的引腳分別接(jie)輸入和地(di)，中間引腳用來獲得(de)電位。

電(dian)(dian)位(wei)器是具有(you)三個引出端、阻(zu)值可按某種變化規律調節的(de)電(dian)(dian)阻(zu)元件。電(dian)(dian)位(wei)器通常由電(dian)(dian)阻(zu)體(ti)和(he)可移動的(de)電(dian)(dian)刷組成。

當電(dian)刷(shua)沿電(dian)阻(zu)體移動(dong)時，在輸出端即(ji)獲得(de)與位(wei)移量成(cheng)(cheng)一定關系的(de)電(dian)阻(zu)值或(huo)電(dian)壓。由于它在電(dian)路中的(de)作用是(shi)獲得(de)與輸入電(dian)壓（外(wai)加(jia)電(dian)壓）成(cheng)(cheng)一定關系得(de)輸出電(dian)壓，因此稱之為電(dian)位(wei)器。

四、電位器的測量方法是什么

1、標稱阻值的檢測

測(ce)量時，選用萬(wan)用表(biao)電(dian)阻(zu)(zu)(zu)檔(dang)的適(shi)當量程，將兩表(biao)筆(bi)分別接在電(dian)位(wei)器(qi)兩個固(gu)定引腳焊片之(zhi)間，先測(ce)量電(dian)位(wei)器(qi)的總阻(zu)(zu)(zu)值(zhi)是否與標(biao)稱阻(zu)(zu)(zu)值(zhi)相同。若測(ce)得的阻(zu)(zu)(zu)值(zhi)為無窮大(da)或較標(biao)稱阻(zu)(zu)(zu)值(zhi)大(da)，則說明該電(dian)位(wei)器(qi)已開路或變(bian)值(zhi)損壞。

2、帶開關電位器的檢測

對于帶(dai)開關(guan)的(de)電位器，除(chu)應(ying)按以上方法檢(jian)(jian)測電位器的(de)標稱阻值及接觸情(qing)況外(wai)，還應(ying)檢(jian)(jian)測其開關(guan)是否(fou)正(zheng)常。先旋(xuan)轉電位器軸柄，檢(jian)(jian)查開關(guan)是否(fou)靈活，接通、斷開時(shi)是否(fou)有清脆(cui)的(de)“喀噠”聲。

3、雙連同軸電位器的檢測

用(yong)萬用(yong)表電(dian)(dian)阻(zu)檔的適(shi)當量程，分別(bie)測量雙(shuang)連電(dian)(dian)位(wei)器(qi)上(shang)兩組電(dian)(dian)位(wei)器(qi)的電(dian)(dian)阻(zu)值(zhi)（即A、C之(zhi)(zhi)間的電(dian)(dian)阻(zu)值(zhi)和A’、C’之(zhi)(zhi)間的電(dian)(dian)阻(zu)值(zhi)）是否相同且(qie)是否與標稱(cheng)阻(zu)值(zhi)相符。