一、電感的用途有哪些
很多人不知(zhi)道電感主要三(san)種作用,下面小編來具(ju)體說(shuo)說(shuo)。
1、阻交通直
對(dui)于直流電(dian)(dian),電(dian)(dian)感(gan)是相(xiang)當于短路的,而對(dui)于交流電(dian)(dian),電(dian)(dian)感(gan)是對(dui)其有阻礙(ai)作用(yong)的,交流電(dian)(dian)的頻率越(yue)高,電(dian)(dian)感(gan)對(dui)它(ta)的阻礙(ai)作用(yong)越(yue)大。
2、變壓器
因為(wei)電(dian)感只會對(dui)電(dian)壓(ya)(ya)、電(dian)流(liu)進行變化(hua),而不(bu)能對(dui)功率進行變化(hua),如果(guo)電(dian)壓(ya)(ya)和電(dian)流(liu)都(dou)為(wei)正比顯然是(shi)不(bu)合情理的。
3、RL低通濾波器
通(tong)過電(dian)感的信(xin)號會(hui)慢慢變小,直到(dao)達到(dao)某一個頻(pin)率(lv),當高于這個頻(pin)率(lv)之后的電(dian)流再也無法(fa)通(tong)過,這時候(hou)就(jiu)形成(cheng)了低通(tong)濾波器,這個頻(pin)率(lv)就(jiu)叫做(zuo)截(jie)止頻(pin)率(lv),公式為f=R/(2πL)。
二、電感耦合等離子發射光譜儀介紹
電(dian)(dian)感(gan)耦(ou)合等(deng)(deng)離(li)子(zi)發(fa)射光譜儀,是指以(yi)電(dian)(dian)感(gan)耦(ou)合等(deng)(deng)離(li)子(zi)體作為激發(fa)光源,根據(ju)處于激發(fa)態的(de)(de)待測(ce)(ce)(ce)元(yuan)素原(yuan)子(zi)回到基態時發(fa)射的(de)(de)特征譜線(xian)對待測(ce)(ce)(ce)元(yuan)素進(jin)行(xing)分析(xi)的(de)(de)儀器。待測(ce)(ce)(ce)元(yuan)素原(yuan)子(zi)的(de)(de)能級(ji)結構不(bu)同(tong)(tong)(tong),因此(ci)發(fa)射譜線(xian)的(de)(de)特征不(bu)同(tong)(tong)(tong),據(ju)此(ci)可(ke)對樣(yang)品進(jin)行(xing)定(ding)(ding)(ding)性(xing)分析(xi);而待測(ce)(ce)(ce)元(yuan)素原(yuan)子(zi)的(de)(de)濃(nong)度(du)不(bu)同(tong)(tong)(tong),因此(ci)發(fa)射強度(du)不(bu)同(tong)(tong)(tong),可(ke)實現元(yuan)素的(de)(de)定(ding)(ding)(ding)量測(ce)(ce)(ce)定(ding)(ding)(ding)。ICP-AES可(ke)同(tong)(tong)(tong)時測(ce)(ce)(ce)定(ding)(ding)(ding)周(zhou)期表中多數元(yuan)素(金屬元(yuan)素及(ji)磷、硅(gui)、砷(shen)、硼等(deng)(deng)非金屬元(yuan)素),且均(jun)有較好的(de)(de)檢出限。根據(ju)基體特性(xing)和濃(nong)度(du),精密度(du)一般優(you)于4%。檢測(ce)(ce)(ce)器線(xian)性(xing)范圍可(ke)達到4?5個數M級(ji)。由(you)于氫氟酸(suan)會腐蝕(shi)玻璃進(jin)樣(yang)系(xi)統(tong),所以(yi)在(zai)樣(yang)品測(ce)(ce)(ce)定(ding)(ding)(ding)時必(bi)須保證待測(ce)(ce)(ce)液中不(bu)含氟離(li)子(zi)或(huo)者使用(yong)耐氫氣酸(suan)的(de)(de)進(jin)樣(yang)系(xi)統(tong)。
三、電感線圈是什么材料
不同的電感需要的材料會不一樣,比如導線是基本材料,可以使用裸線,也可以使用漆包線,紗包線等等,線材可以是銅質也有銅包鋁的。有的電感還需要磁性材料,其形狀牌號也不相同。所以具體的信息大家可以先到電感十大品牌進行一(yi)個(ge)基(ji)本的了解哦!
四、電感線圈的作用是什么
1、阻流作用
電(dian)(dian)(dian)(dian)感(gan)(gan)線(xian)(xian)圈(quan)線(xian)(xian)圈(quan)中(zhong)的(de)(de)自感(gan)(gan)電(dian)(dian)(dian)(dian)動勢總是(shi)與線(xian)(xian)圈(quan)中(zhong)的(de)(de)電(dian)(dian)(dian)(dian)流變化抗(kang)衡(heng)。電(dian)(dian)(dian)(dian)感(gan)(gan)線(xian)(xian)圈(quan)對交流電(dian)(dian)(dian)(dian)流有阻(zu)(zu)(zu)礙(ai)作(zuo)(zuo)用(yong),阻(zu)(zu)(zu)礙(ai)作(zuo)(zuo)用(yong)的(de)(de)大小(xiao)稱感(gan)(gan)抗(kang)xl,單位是(shi)歐姆。它與電(dian)(dian)(dian)(dian)感(gan)(gan)量(liang)l和(he)交流電(dian)(dian)(dian)(dian)頻(pin)(pin)率f的(de)(de)關系為xl=2πfl,電(dian)(dian)(dian)(dian)感(gan)(gan)器主(zhu)要可(ke)分為高頻(pin)(pin)阻(zu)(zu)(zu)流線(xian)(xian)圈(quan)及低頻(pin)(pin)阻(zu)(zu)(zu)流線(xian)(xian)圈(quan)。
2、調諧與選頻作用
電(dian)(dian)(dian)(dian)感(gan)線(xian)圈與(yu)電(dian)(dian)(dian)(dian)容(rong)器并聯可組成lc調諧(xie)電(dian)(dian)(dian)(dian)路(lu)。即電(dian)(dian)(dian)(dian)路(lu)的固有振(zhen)(zhen)蕩頻(pin)率f0與(yu)非交(jiao)流信(xin)號的頻(pin)率f相等(deng),則(ze)回(hui)路(lu)的感(gan)抗(kang)與(yu)容(rong)抗(kang)也相等(deng),于(yu)是電(dian)(dian)(dian)(dian)磁能量就(jiu)在(zai)電(dian)(dian)(dian)(dian)感(gan)、電(dian)(dian)(dian)(dian)容(rong)來回(hui)振(zhen)(zhen)蕩,這lc回(hui)路(lu)的諧(xie)振(zhen)(zhen)現象。諧(xie)振(zhen)(zhen)時(shi)電(dian)(dian)(dian)(dian)路(lu)的感(gan)抗(kang)與(yu)容(rong)抗(kang)等(deng)值(zhi)又反向,回(hui)路(lu)總電(dian)(dian)(dian)(dian)流的感(gan)抗(kang)最(zui)小,電(dian)(dian)(dian)(dian)流量最(zui)大(指f=“f0“的交(jiao)流信(xin)號),lc諧(xie)振(zhen)(zhen)電(dian)(dian)(dian)(dian)路(lu)具有選擇頻(pin)率的作用,能將某一(yi)頻(pin)率f的交(jiao)流信(xin)號選擇出來。