1.固定(ding)電阻器的(de)選用(yong)

固定電阻器有多種類型，選擇哪一種材料和結構的電阻器，應根據應用電路的具體要求而定。 高頻電路應選用分布電感和分布電容小的非線繞電阻器，例如碳膜電阻器、金屬電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)和(he)(he)金屬(shu)氧化膜電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)等。高(gao)增益小(xiao)信號放大(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路應(ying)(ying)(ying)選(xuan)用(yong)低(di)噪聲(sheng)(sheng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)，例如金屬(shu)膜電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)、碳膜電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)和(he)(he)線繞電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)，而不(bu)能使(shi)(shi)用(yong)噪聲(sheng)(sheng)較大(da)的(de)合(he)(he)成碳膜電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)和(he)(he)有機實心(xin)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)。 線繞電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)功(gong)率(lv)較大(da)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)噪聲(sheng)(sheng)小(xiao)，耐高(gao)溫，但體積較大(da)。普通線繞電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)常(chang)用(yong)于低(di)頻電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路或中(zhong)作限流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)、分壓電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)、泄放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)或大(da)功(gong)率(lv)管的(de)偏壓電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)。精(jing)度較高(gao)的(de)線繞電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)多用(yong)于固定衰減器(qi)(qi)(qi)(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)箱、計(ji)算(suan)機及各種精(jing)密電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)儀器(qi)(qi)(qi)(qi)(qi)(qi)中(zhong)。 所選(xuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)值(zhi)應(ying)(ying)(ying)接近應(ying)(ying)(ying)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路中(zhong)計(ji)算(suan)值(zhi)的(de)一(yi)個標稱(cheng)值(zhi)，應(ying)(ying)(ying)優先選(xuan)用(yong)標準系(xi)列的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)。一(yi)般電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路使(shi)(shi)用(yong)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)允許(xu)誤(wu)差為(wei)±5%~±10%。精(jing)密儀器(qi)(qi)(qi)(qi)(qi)(qi)及特殊電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路中(zhong)使(shi)(shi)用(yong)的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)，應(ying)(ying)(ying)選(xuan)用(yong)精(jing)密電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)。所選(xuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)額定功(gong)率(lv)，要(yao)(yao)符合(he)(he)應(ying)(ying)(ying)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路中(zhong)對電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)功(gong)率(lv)容量(liang)的(de)要(yao)(yao)求(qiu)，一(yi)般不(bu)應(ying)(ying)(ying)隨意加大(da)或減小(xiao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)功(gong)率(lv)。若電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路要(yao)(yao)求(qiu)是功(gong)率(lv)型電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)器(qi)(qi)(qi)(qi)(qi)(qi)，則其額定功(gong)率(lv)可高(gao)于實際(ji)應(ying)(ying)(ying)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路要(yao)(yao)求(qiu)功(gong)率(lv)的(de)1~2倍(bei)。

2.熔斷電(dian)阻器的選用(yong)

熔斷電阻(zu)器具有保(bao)護功能(neng)(neng)的(de)電阻(zu)器。選用時(shi)應考(kao)慮其雙重性(xing)能(neng)(neng)，根據電路的(de)具體要求(qiu)選擇其阻(zu)值和(he)功率等參數。既(ji)要保(bao)證(zheng)它(ta)在過(guo)負荷時(shi)能(neng)(neng)快速熔斷，又要保(bao)證(zheng)它(ta)在正常條件下能(neng)(neng)長期穩(wen)定的(de)工(gong)作(zuo)(zuo)。電阻(zu)值過(guo)大或功率過(guo)大，均(jun)不能(neng)(neng)起(qi)到(dao)保(bao)護作(zuo)(zuo)用。

3.熱(re)敏(min)電阻器的選用

熱敏電阻器的種類和型號較多，選哪一種熱敏電阻器，應根據電路的具體要求而定。 正溫度系數熱敏電阻器(PTC)一般用于電冰箱壓縮機起動電路、彩色顯像管消磁電路、電動機過電(dian)流過熱(re)保護電(dian)路(lu)、限流電(dian)路(lu)及恒(heng)溫電(dian)加熱(re)電(dian)路(lu)。壓縮機(ji)起動電(dian)路(lu)中常用的熱(re)敏電(dian)阻器有MZ-01~MZ-04系(xi)列(lie)、MZ81系(xi)列(lie)、MZ91系(xi)列(lie)、MZ92系(xi)列(lie)和(he)MZ93系(xi)列(lie)等。可以根(gen)

據不同類型壓縮機來選用適合它起動的熱敏電阻器，以達到最好的起動效果。彩色電視機、電腦顯示器上使用的消磁熱敏電阻器有MZ71~MZ75系列。可根據電視機、顯示器的工作電壓(220V或110V)、工作電流及消磁線圈的規格等，選用標稱阻值、最大起始電流、最大工作電壓等參數均符合要求的消磁熱敏電阻器。限流用小功率PTC熱敏電阻器有MZ2A~MZ2D系列、MZ21系列，電動機過熱保護用PTC熱敏電阻器有MZ61系列，應選用標稱阻值、開關溫(wen)(wen)(wen)(wen)(wen)度(du)(du)、工作(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)及(ji)耗(hao)散功(gong)率(lv)等(deng)參數符合應(ying)用(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)(lu)要(yao)求的(de)(de)(de)(de)(de)(de)(de)型(xing)(xing)(xing)號(hao)。 負溫(wen)(wen)(wen)(wen)(wen)度(du)(du)系(xi)(xi)(xi)數熱(re)(re)(re)(re)敏(min)(min)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)器(qi)(qi)(qi)(NTC)一(yi)般用(yong)(yong)(yong)于各種(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)產(chan)品(pin)中作(zuo)微波功(gong)率(lv)測(ce)量、溫(wen)(wen)(wen)(wen)(wen)度(du)(du)檢(jian)測(ce)、溫(wen)(wen)(wen)(wen)(wen)度(du)(du)補償、溫(wen)(wen)(wen)(wen)(wen)度(du)(du)控(kong)制(zhi)及(ji)穩壓(ya)用(yong)(yong)(yong)，選(xuan)用(yong)(yong)(yong)時(shi)應(ying)根據應(ying)用(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)(lu)的(de)(de)(de)(de)(de)(de)(de)需要(yao)選(xuan)擇(ze)(ze)合適(shi)的(de)(de)(de)(de)(de)(de)(de)類型(xing)(xing)(xing)及(ji)型(xing)(xing)(xing)號(hao)。常用(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)檢(jian)測(ce)用(yong)(yong)(yong)NTC熱(re)(re)(re)(re)敏(min)(min)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)器(qi)(qi)(qi)有(you)MF53系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)和MF57系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)，每個(ge)系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)又有(you)多種(zhong)型(xing)(xing)(xing)號(hao)(同(tong)(tong)一(yi)類型(xing)(xing)(xing)、不(bu)同(tong)(tong)型(xing)(xing)(xing)號(hao)的(de)(de)(de)(de)(de)(de)(de)NTC熱(re)(re)(re)(re)敏(min)(min)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)器(qi)(qi)(qi)，標準阻(zu)(zu)值也不(bu)相(xiang)同(tong)(tong))可(ke)供選(xuan)擇(ze)(ze)。常用(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)穩壓(ya)用(yong)(yong)(yong)NTC熱(re)(re)(re)(re)敏(min)(min)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)器(qi)(qi)(qi)有(you)MF21系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)、RR827系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)等(deng)，可(ke)根據應(ying)用(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)(lu)設計(ji)的(de)(de)(de)(de)(de)(de)(de)基準電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)值來(lai)選(xuan)用(yong)(yong)(yong)熱(re)(re)(re)(re)敏(min)(min)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)器(qi)(qi)(qi)穩壓(ya)值及(ji)工作(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)。常用(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)補償、溫(wen)(wen)(wen)(wen)(wen)度(du)(du)控(kong)制(zhi)用(yong)(yong)(yong)NTC熱(re)(re)(re)(re)敏(min)(min)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)器(qi)(qi)(qi)有(you)MF11~MF17系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)。常用(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)(de)測(ce)溫(wen)(wen)(wen)(wen)(wen)及(ji)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)控(kong)制(zhi)用(yong)(yong)(yong)NTC熱(re)(re)(re)(re)敏(min)(min)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)器(qi)(qi)(qi)有(you)MF51系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)、MF52系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)、MF54系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)、MF55系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)、MF61系(xi)(xi)(xi)、MF91~MF96系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)、MF111系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)等(deng)多種(zhong)。MF52系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)、MF111系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)的(de)(de)(de)(de)(de)(de)(de)NTC熱(re)(re)(re)(re)敏(min)(min)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)器(qi)(qi)(qi)適(shi)用(yong)(yong)(yong)于-80℃~+200℃溫(wen)(wen)(wen)(wen)(wen)度(du)(du)范圍內(nei)的(de)(de)(de)(de)(de)(de)(de)測(ce)溫(wen)(wen)(wen)(wen)(wen)與(yu)控(kong)溫(wen)(wen)(wen)(wen)(wen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)(lu)。MF51系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)、MF91-MF96系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)的(de)(de)(de)(de)(de)(de)(de)NTC熱(re)(re)(re)(re)敏(min)(min)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)器(qi)(qi)(qi)適(shi)用(yong)(yong)(yong)于300℃以(yi)(yi)下的(de)(de)(de)(de)(de)(de)(de)測(ce)溫(wen)(wen)(wen)(wen)(wen)與(yu)控(kong)溫(wen)(wen)(wen)(wen)(wen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)(lu)。MF54系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)、MF55系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)的(de)(de)(de)(de)(de)(de)(de)NTC熱(re)(re)(re)(re)敏(min)(min)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)器(qi)(qi)(qi)適(shi)用(yong)(yong)(yong)于125℃以(yi)(yi)下的(de)(de)(de)(de)(de)(de)(de)測(ce)溫(wen)(wen)(wen)(wen)(wen)與(yu)控(kong)溫(wen)(wen)(wen)(wen)(wen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)(lu)。MF61系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)、MF92系(xi)(xi)(xi)列(lie)(lie)(lie)(lie)(lie)的(de)(de)(de)(de)(de)(de)(de)NTC熱(re)(re)(re)(re)敏(min)(min)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)器(qi)(qi)(qi)適(shi)用(yong)(yong)(yong)于300℃以(yi)(yi)上的(de)(de)(de)(de)(de)(de)(de)測(ce)溫(wen)(wen)(wen)(wen)(wen)與(yu)控(kong)溫(wen)(wen)(wen)(wen)(wen)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)(lu)。選(xuan)用(yong)(yong)(yong)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)控(kong)制(zhi)熱(re)(re)(re)(re)敏(min)(min)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)器(qi)(qi)(qi)時(shi)，應(ying)注意NTC熱(re)(re)(re)(re)敏(min)(min)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)控(kong)制(zhi)范圍是否符合應(ying)用(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)(lu)的(de)(de)(de)(de)(de)(de)(de)要(yao)求。

4.壓敏電阻器的選用

壓敏(min)(min)電(dian)(dian)(dian)阻器(qi)(qi)主要(yao)(yao)應(ying)用(yong)(yong)于各種電(dian)(dian)(dian)子產品的(de)(de)過電(dian)(dian)(dian)壓保(bao)護電(dian)(dian)(dian)路中(zhong)，它有多種型號和(he)規格。所選壓敏(min)(min)電(dian)(dian)(dian)阻器(qi)(qi)的(de)(de)主要(yao)(yao)參(can)數(包括標稱(cheng)電(dian)(dian)(dian)壓、最大(da)連(lian)續(xu)工作(zuo)電(dian)(dian)(dian)壓、最大(da)-電(dian)(dian)(dian)壓、通(tong)流容(rong)量等)必須符合(he)應(ying)用(yong)(yong)電(dian)(dian)(dian)路的(de)(de)要(yao)(yao)求(qiu)，尤(you)其是標稱(cheng)電(dian)(dian)(dian)壓要(yao)(yao)準確。標稱(cheng)電(dian)(dian)(dian)壓過高(gao)，壓敏(min)(min)電(dian)(dian)(dian)阻器(qi)(qi)起不(bu)到(dao)過電(dian)(dian)(dian)壓保(bao)護作(zuo)用(yong)(yong)，標稱(cheng)電(dian)(dian)(dian)壓過低，壓敏(min)(min)電(dian)(dian)(dian)阻器(qi)(qi)容(rong)易誤動(dong)作(zuo)或被擊穿。

5.光敏電阻器的選用

選用光敏電阻器時，應首先確定應用電路中所需光敏電阻器的光譜特性類型。若是用于各種光電自動控制系統、電子照相機和光報警器等(deng)電子產品(pin)，則(ze)(ze)應(ying)選(xuan)(xuan)(xuan)取用(yong)(yong)可見光(guang)(guang)光(guang)(guang)敏電阻器(qi)(qi)(qi);若(ruo)是用(yong)(yong)于紅外(wai)信(xin)號檢測(ce)及天文(wen)、軍事等(deng)領域的有關自(zi)動控制系統、則(ze)(ze)應(ying)選(xuan)(xuan)(xuan)用(yong)(yong)紅外(wai)光(guang)(guang)光(guang)(guang)敏電阻器(qi)(qi)(qi);若(ruo)是用(yong)(yong)于紫外(wai)線探測(ce)等(deng)儀器(qi)(qi)(qi)中，則(ze)(ze)應(ying)選(xuan)(xuan)(xuan)用(yong)(yong)紫外(wai)光(guang)(guang)光(guang)(guang)敏電阻器(qi)(qi)(qi)。 選(xuan)(xuan)(xuan)好光(guang)(guang)敏電阻器(qi)(qi)(qi)的不譜牧場生類型后(hou)，還應(ying)看所選(xuan)(xuan)(xuan)光(guang)(guang)敏電阻器(qi)(qi)(qi)的主要(yao)參數(包括(kuo)亮(liang)電阻、暗電阻、最高(gao)工作電壓、視(shi)電流(liu)、暗電流(liu)、額定功率(lv)、靈敏度等(deng))是否符合應(ying)用(yong)(yong)電路(lu)的要(yao)求(qiu)。

6.濕(shi)敏(min)電(dian)阻器(qi)的選用(yong)

選用濕敏電阻器時，首先應根據應用電路的要求選擇合適的類型。若用于洗衣機、干衣機等家電中作高濕度檢測，可選用氯化鋰濕敏電阻器;若用于空調器、恒濕機等家電中作中等濕度環境的檢測，則可選用陶瓷濕敏電阻(zu)器;若用于氣象監測、錄像(xiang)機結露(lu)檢測等(deng)方面，則可以選(xuan)用高(gao)分子聚合(he)物濕敏電阻(zu)器或(huo)硒膜濕敏電阻(zu)器。 保證所選(xuan)用濕敏電阻(zu)器的主要(yao)參數(包括測濕范圍、標稱阻(zu)值、工作電壓等(deng))符合(he)應用電路(lu)的要(yao)求。