廈門水(shui)超(chao)器(qi)(qi)械主營：助聽(ting)器(qi)(qi)，老人(ren)助聽(ting)器(qi)(qi)，舞鋼盒式(shi)助聽(ting)器(qi)(qi)，兒童(tong)助聽(ting)器(qi)(qi)，各種品(pin)牌(pai)助聽(ting)器(qi)(qi)等相關產(chan)品(pin)。防聾(long)(long)(long)(long)治聾(long)(long)(long)(long)，服務重(zhong)視耳科保健(jian)，減少聾(long)(long)(long)(long)癥發生(sheng)防聾(long)(long)(long)(long)重(zhong)在科普，治聾(long)(long)(long)(long)重(zhong)在科學關注聽(ting)障兒童(tong)康(kang)復(fu)實(shi)施(shi)聽(ting)力殘疾人(ren)康(kang)復(fu)，共建共享小康(kang)社會。

對于電(dian)(dian)位(wei)來說，參考(kao)(kao)(kao)點是(shi)至(zhi)關重要的(de)。在(zai)同一(yi)電(dian)(dian)路(lu)中，盒(he)式助聽器(qi)哪家配(pei)好，當選(xuan)定不同的(de)參考(kao)(kao)(kao)點，同一(yi)點的(de)電(dian)(dian)位(wei)數值是(shi)不同的(de)。原則上說，參考(kao)(kao)(kao)點可以任意選(xuan)定。在(zai)電(dian)(dian)工領域，盒(he)式助聽器(qi)哪家好，通常選(xuan)電(dian)(dian)路(lu)里的(de)接地(di)點為參考(kao)(kao)(kao)點，在(zai)電(dian)(dian)子電(dian)(dian)路(lu)里，常取機殼為參考(kao)(kao)(kao)點。

廈門水超器(qi)械主營：助(zhu)聽(ting)器(qi)，老(lao)人助(zhu)聽(ting)器(qi)，兒童(tong)助(zhu)聽(ting)器(qi)，各種品牌助(zhu)聽(ting)器(qi)等(deng)相關(guan)產品。防(fang)聾治(zhi)(zhi)聾，服務重(zhong)視(shi)耳科保健，減少聾癥發(fa)生防(fang)聾重(zhong)在科普(pu)，盒式助(zhu)聽(ting)器(qi)找哪家買好(hao)，治(zhi)(zhi)聾重(zhong)在科學關(guan)注(zhu)聽(ting)障兒童(tong)康(kang)復實施(shi)聽(ting)力殘(can)疾人康(kang)復，共建共享小康(kang)社(she)會。

電位差(cha)計主要(yao)結構組件(jian)有(you)測量(liang)盤(pan)、工作(zuo)電流(liu)調(diao)節盤(pan)、溫度補償盤(pan)、測量(liang)選(xuan)擇(ze)開(kai)(kai)關、極性(xing)變換(huan)開(kai)(kai)關、量(liang)限(xian)變換(huan)開(kai)(kai)關、電鍵按鈕、接線(xian)端鈕、面板、屏蔽層及外(wai)殼等。開(kai)(kai)關、按鈕、端鈕等是大(da)家所熟悉的。所謂(wei)“盤(pan)”實質上(shang)是可調(diao)電阻，不過它(ta)呈(cheng)圓(yuan)盤(pan)形(xing)。可調(diao)電阻分兩類

廈門水(shui)超(chao)器(qi)械主營：助(zhu)聽(ting)(ting)器(qi)，老(lao)人助(zhu)聽(ting)(ting)器(qi)，兒童(tong)助(zhu)聽(ting)(ting)器(qi)，各種品(pin)牌助(zhu)聽(ting)(ting)器(qi)等相關(guan)產(chan)品(pin)。防聾(long)治聾(long)，服務重(zhong)(zhong)視耳科(ke)保健，減少聾(long)癥發(fa)生(sheng)防聾(long)重(zhong)(zhong)在科(ke)普，治聾(long)重(zhong)(zhong)在科(ke)學關(guan)注聽(ting)(ting)障兒童(tong)康(kang)復(fu)實(shi)施聽(ting)(ting)力殘疾人康(kang)復(fu)，共建共享小康(kang)社會。

換一個(ge)角度(du)看(kan)，對(dui)于同一電路，可(ke)以因選(xuan)取的(de)正方向(xiang)不同而有不比較電壓(ya)和電位(wei)的(de)概念可(ke)以看(kan)出，電場中某點(dian)的(de)電位(wei)就是(shi)(shi)該點(dian)到參考點(dian)之間的(de)電壓(ya)，電位(wei)是(shi)(shi)電壓(ya)的(de)一個(ge)特殊形式同的(de)表示(shi)，它可(ke)能(neng)是(shi)(shi)正值或(huo)者是(shi)(shi)負值。