高(gao)(gao)频电(dian)(dian)(dian)(dian)力电(dian)(dian)(dian)(dian)子装置无(wu)论是应(ying)(ying)用于工业矿产中(zhong)的(de)(de)(de)(de)(de)电(dian)(dian)(dian)(dian)动(dong)机车(che)，在风机水泵(beng)的(de)(de)(de)(de)(de)交(jiao)流调速，还是新能源发电(dian)(dian)(dian)(dian)中(zhong)的(de)(de)(de)(de)(de)风电(dian)(dian)(dian)(dian)并(bing)网转换技术(shu)以(yi)及对(dui)多余(yu)能量(liang)(liang)的(de)(de)(de)(de)(de)存储和(he)使用等(deng)多个(ge)方面，都需要(yao)在复(fu)杂(za)环境(jing)下对(dui)电(dian)(dian)(dian)(dian)流进(jin)行检(jian)测(ce)，因(yin)此对(dui)电(dian)(dian)(dian)(dian)流传(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)的(de)(de)(de)(de)(de)温(wen)度(du)特性及精确度(du)的(de)(de)(de)(de)(de)要(yao)求(qiu)较高(gao)(gao)。随着电(dian)(dian)(dian)(dian)力电(dian)(dian)(dian)(dian)子高(gao)(gao)频化的(de)(de)(de)(de)(de)进(jin)一(yi)步发展，可以(yi)在高(gao)(gao)温(wen)环境(jing)下测(ce)量(liang)(liang)复(fu)杂(za)电(dian)(dian)(dian)(dian)流波形的(de)(de)(de)(de)(de)电(dian)(dian)(dian)(dian)流传(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)的(de)(de)(de)(de)(de)研制具有(you)(you)很大(da)的(de)(de)(de)(de)(de)价值和(he)应(ying)(ying)用潜(qian)力。目前存在的(de)(de)(de)(de)(de)电(dian)(dian)(dian)(dian)流检(jian)测(ce)技术(shu)和(he)方法有(you)(you)很多，根据测(ce)量(liang)(liang)方法和(he)方式(shi)的(de)(de)(de)(de)(de)不同(tong)，电(dian)(dian)(dian)(dian)流传(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)可分(fen)为非隔离(li)式(shi)与(yu)(yu)电(dian)(dian)(dian)(dian)隔离(li)式(shi)两(liang)种。非隔离(li)式(shi)主要(yao)是指(zhi)分(fen)流电(dian)(dian)(dian)(dian)阻。电(dian)(dian)(dian)(dian)隔离(li)式(shi)主要(yao)包括 霍尔(er)电(dian)(dian)(dian)(dian)流传(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(Hall-transducer)，罗氏线圈(Rogowski Coil)，电(dian)(dian)(dian)(dian)流互感(gan)(gan)(gan)器(qi)(qi)(Current transformer)，磁通门(men)电(dian)(dian)(dian)(dian)流传(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(Fluxgate current sensor)以(yi)及巨(ju)磁阻电(dian)(dian)(dian)(dian)流传(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)(GMR current sensor )等(deng)。功(gong)率(lv)分(fen)析仪还可以(yi)测(ce)量(liang)(liang)和(he)分(fen)析其他与(yu)(yu)功(gong)率(lv)相关的(de)(de)(de)(de)(de)参数，例如电(dian)(dian)(dian)(dian)压和(he)电(dian)(dian)(dian)(dian)流的(de)(de)(de)(de)(de)有(you)(you)效值、峰(feng)值、频率(lv)等(deng)。宁波国产替代(dai)电(dian)(dian)(dian)(dian)流传(chuan)(chuan)(chuan)感(gan)(gan)(gan)器(qi)(qi)价格大(da)全

已知交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)工频(pin)为(wei)(wei)(wei)f=50Hz，假设(she)自(zi)激(ji)振(zhen)荡磁(ci)(ci)(ci)(ci)通(tong)(tong)(tong)门(men)电(dian)(dian)(dian)(dian)路(lu)激(ji)磁(ci)(ci)(ci)(ci)电(dian)(dian)(dian)(dian)压(ya)频(pin)率(lv)fex>>f，且为(wei)(wei)(wei)50Hz的(de)整数(shu)倍，即(ji)满足fex=kf(k为(wei)(wei)(wei)整数(shu))。设(she)一(yi)(yi)(yi)(yi)(yi)次(ci)电(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)中交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)分(fen)(fen)(fen)量(liang)为(wei)(wei)(wei)iac，直流(liu)(liu)(liu)(liu)(liu)(liu)分(fen)(fen)(fen)量(liang)为(wei)(wei)(wei)Id。此时(shi)(shi)可(ke)以将一(yi)(yi)(yi)(yi)(yi)次(ci)电(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)iP表示为(wei)(wei)(wei)为(wei)(wei)(wei)：iP(t)=iac(t)+Id（2－35）由于(yu)激(ji)磁(ci)(ci)(ci)(ci)电(dian)(dian)(dian)(dian)压(ya)频(pin)率(lv)远(yuan)大(da)于(yu)一(yi)(yi)(yi)(yi)(yi)次(ci)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)频(pin)率(lv)，因此可(ke)以将一(yi)(yi)(yi)(yi)(yi)次(ci)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)在每个极短(duan)的(de)激(ji)磁(ci)(ci)(ci)(ci)电(dian)(dian)(dian)(dian)压(ya)周(zhou)期内，看(kan)作(zuo)缓慢变(bian)化(hua)(hua)的(de)直流(liu)(liu)(liu)(liu)(liu)(liu)信号。假设(she)按(an)照自(zi)激(ji)振(zhen)荡磁(ci)(ci)(ci)(ci)通(tong)(tong)(tong)门(men)电(dian)(dian)(dian)(dian)路(lu)频(pin)率(lv)fex将一(yi)(yi)(yi)(yi)(yi)次(ci)电(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)ip进行分(fen)(fen)(fen)段(duan)(duan)(duan)，共分(fen)(fen)(fen)为(wei)(wei)(wei)k段(duan)(duan)(duan)，并(bing)取(qu)每段(duan)(duan)(duan)取(qu)间的(de)电(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)左端点(dian)值(zhi)作(zuo)为(wei)(wei)(wei)该段(duan)(duan)(duan)区间电(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)值(zhi)，则(ze)在分(fen)(fen)(fen)段(duan)(duan)(duan)区间内可(ke)将一(yi)(yi)(yi)(yi)(yi)次(ci)电(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)ip表示为(wei)(wei)(wei)：iP(t)=iac(t1k)+Id,t1k<t<t2k其中每段(duan)(duan)(duan)区间时(shi)(shi)间间隔Δt为(wei)(wei)(wei)自(zi)激(ji)振(zhen)荡磁(ci)(ci)(ci)(ci)通(tong)(tong)(tong)门(men)电(dian)(dian)(dian)(dian)路(lu)周(zhou)期，即(ji)满足：Δt=1/fex=t2k一(yi)(yi)(yi)(yi)(yi)t1k=t3k一(yi)(yi)(yi)(yi)(yi)t2k=...,keN*（2－36）（2－37）此时(shi)(shi)在t1k～t2k期间，可(ke)以将一(yi)(yi)(yi)(yi)(yi)次(ci)电(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)看(kan)作(zuo)近似直流(liu)(liu)(liu)(liu)(liu)(liu)分(fen)(fen)(fen)量(liang)，其大(da)小为(wei)(wei)(wei)t1k时(shi)(shi)刻交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)瞬时(shi)(shi)值(zhi)大(da)小iac(t1k)与(yu)直流(liu)(liu)(liu)(liu)(liu)(liu)分(fen)(fen)(fen)量(liang)Id之和。按(an)照前述对自(zi)激(ji)振(zhen)荡磁(ci)(ci)(ci)(ci)通(tong)(tong)(tong)门(men)直流(liu)(liu)(liu)(liu)(liu)(liu)分(fen)(fen)(fen)量(liang)测(ce)量(liang)原理推导可(ke)得，此时(shi)(shi)在t1k～t2k时(shi)(shi)刻，宁波国产替代电(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)传感器价格大(da)全在科学研究领(ling)域，电(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)测(ce)量(liang)对于(yu)探索(suo)物质的(de)电(dian)(dian)(dian)(dian)子行为(wei)(wei)(wei)、研究化(hua)(hua)学反(fan)应和生物过(guo)程(cheng)等方面(mian)具(ju)有重要意义。

传(chuan)(chuan)感(gan)器技术(shu)(shu)作(zuo)为21世(shi)纪世(shi)界争夺高(gao)(gao)(gao)科技技术(shu)(shu)的(de)(de)(de)制高(gao)(gao)(gao)点的(de)(de)(de)重(zhong)(zhong)要技术(shu)(shu)，同时也(ye)是现代信息技术(shu)(shu)的(de)(de)(de)三(san)大技术(shu)(shu)产(chan)业的(de)(de)(de)支(zhi)柱(zhu)之一。电(dian)(dian)(dian)流传(chuan)(chuan)感(gan)器在电(dian)(dian)(dian)力电(dian)(dian)(dian)子(zi)技术(shu)(shu)控制和变换领域应(ying)用(yong)越来越广。电(dian)(dian)(dian)流传(chuan)(chuan)感(gan)器不论在新能(neng)源技术(shu)(shu)发(fa)展中的(de)(de)(de)并(bing)网控制，对过剩能(neng)量存储以及再分配(pei)，还是在智(zhi)能(neng)电(dian)(dian)(dian)网中的(de)(de)(de)监测以及电(dian)(dian)(dian)能(neng)的(de)(de)(de)分配(pei)转换等(deng)环(huan)节都起着(zhe)极其重(zhong)(zhong)要的(de)(de)(de)作(zuo)用(yong)。电(dian)(dian)(dian)流的(de)(de)(de)精确(que)检(jian)测是高(gao)(gao)(gao)频(pin)(pin)电(dian)(dian)(dian)力电(dian)(dian)(dian)子(zi)应(ying)用(yong)系统可靠高(gao)(gao)(gao)效运行的(de)(de)(de)基础。不同于传(chuan)(chuan)统电(dian)(dian)(dian)力系统中的(de)(de)(de)电(dian)(dian)(dian)流检(jian)测，高(gao)(gao)(gao)频(pin)(pin)电(dian)(dian)(dian)力电(dian)(dian)(dian)子(zi)系统的(de)(de)(de)电(dian)(dian)(dian)流检(jian)测存在很(hen)多特殊的(de)(de)(de)情况。

导致正(zheng)(zheng)(zheng)(zheng)半周波自激振荡(dang)(dang)过程将不会在(zai)原时(shi)(shi)刻进(jin)入饱(bao)和区， 而是略有延后，即铁芯(xin)(xin) C1 工(gong)作(zuo)点将滞(zhi)后进(jin)入正(zheng)(zheng)(zheng)(zheng)向(xiang)(xiang)饱(bao)和区 B；而在(zai)正(zheng)(zheng)(zheng)(zheng)向(xiang)(xiang)饱(bao)和区 B 及负(fu)向(xiang)(xiang) 饱(bao)和区 C 中(zhong)，激磁电(dian)(dian)(dian)流峰值仍然满足 I+m=-I-m=Im=ρVOH/RS，且非线性电(dian)(dian)(dian)感时(shi)(shi)间(jian)常(chang)数未发(fa) 生变(bian)化(hua)， 因此铁芯(xin)(xin) C1 饱(bao)和区自激振荡(dang)(dang)阶段， 激磁电(dian)(dian)(dian)流由(you) I+th1 正(zheng)(zheng)(zheng)(zheng)向(xiang)(xiang)增大至 I+m 的(de)时(shi)(shi)间(jian)间(jian)隔 减小， 而激磁电(dian)(dian)(dian)流由(you) I-th1 负(fu)向(xiang)(xiang)增大至 I-m 的(de)时(shi)(shi)间(jian)间(jian)隔增大。 由(you)上述(shu)分析可(ke)知， 测(ce)量负(fu)向(xiang)(xiang)直(zhi) 流时(shi)(shi)铁芯(xin)(xin)工(gong)作(zuo)点的(de)特征为：铁芯(xin)(xin) C1 工(gong)作(zuo)在(zai)正(zheng)(zheng)(zheng)(zheng)向(xiang)(xiang)饱(bao)和区 B 的(de)时(shi)(shi)间(jian)小于(yu)于(yu)铁芯(xin)(xin) C1 工(gong)作(zuo)在(zai)负(fu) 向(xiang)(xiang)饱(bao)和区 C 的(de)时(shi)(shi)间(jian)，使激磁电(dian)(dian)(dian)流 iex 波形(xing)上出(chu)现了(le)正(zheng)(zheng)(zheng)(zheng)负(fu)半周波波形(xing)上的(de)不对称性，即由(you) 图 2－5 可(ke)知， 在(zai)一(yi)次电(dian)(dian)(dian)流 IP 为负(fu)时(shi)(shi)， 激磁电(dian)(dian)(dian)流 iex 在(zai)一(yi)个周波内， 正(zheng)(zheng)(zheng)(zheng)半周波电(dian)(dian)(dian)流平均值 大于(yu)负(fu)半周波电(dian)(dian)(dian)流平均值，采样电(dian)(dian)(dian)阻(zu) RS 上采样电(dian)(dian)(dian)压 VRs 一(yi)个周波内平均值为正(zheng)(zheng)(zheng)(zheng)。在(zai)电(dian)(dian)(dian)气工(gong)程中(zhong)，电(dian)(dian)(dian)流测(ce)量对于(yu)评估电(dian)(dian)(dian)路的(de)性能和优化(hua)设计至关(guan)重要(yao)。

巨磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)阻（GMR）效应在(zai)微小(xiao)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)场测(ce)(ce)(ce)量(liang)领域实现(xian)了创(chuang)新(xin)性(xing)(xing)的(de)(de)改变，尤其(qi)在(zai)利用(yong)涡流(liu)传(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)进(jin)行无(wu)损检(jian)(jian)(jian)(jian)测(ce)(ce)(ce)方(fang)面(mian)取得了很大的(de)(de)进(jin)展(zhan)。巨磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)阻传(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)具有低(di)功(gong)耗、尺(chi)寸小(xiao)、高(gao)灵(ling)敏(min)度以及(ji)频率与灵(ling)敏(min)度的(de)(de)不相关性(xing)(xing)等特点；同(tong)(tong)霍(huo)尔传(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)相同(tong)(tong)，巨磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)阻芯(xin)片是传(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)主(zhu)要(yao)组成部分，一般也容易受(shou)(shou)到(dao)环境中(zhong)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)场的(de)(de)干扰，不适用(yong)于(yu)电(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)环境复杂的(de)(de)环境，对(dui)复杂波形电(dian)流(liu)也不能做(zuo)出准确的(de)(de)检(jian)(jian)(jian)(jian)测(ce)(ce)(ce)。磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)通(tong)(tong)(tong)门(men)传(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)(Fluxgatecurrentsensor)，一开(kai)始(shi)主(zhu)要(yao)用(yong)于(yu)弱磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)场的(de)(de)检(jian)(jian)(jian)(jian)测(ce)(ce)(ce)，比如地(di)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)场检(jian)(jian)(jian)(jian)测(ce)(ce)(ce)、铁(tie)矿石检(jian)(jian)(jian)(jian)测(ce)(ce)(ce)、位移检(jian)(jian)(jian)(jian)测(ce)(ce)(ce)和(he)管道泄漏检(jian)(jian)(jian)(jian)测(ce)(ce)(ce)等方(fang)面(mian)。随着这种技(ji)术(shu)的(de)(de)发展(zhan)，磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)通(tong)(tong)(tong)-2-门(men)传(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)广泛应用(yong)于(yu)太空探(tan)测(ce)(ce)(ce)和(he)地(di)质(zhi)勘探(tan)中(zhong)。磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)通(tong)(tong)(tong)门(men)电(dian)流(liu)传(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)结构类似霍(huo)尔电(dian)流(liu)传(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)，是基于(yu)检(jian)(jian)(jian)(jian)测(ce)(ce)(ce)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)路的(de)(de)饱和(he)特性(xing)(xing)而设计的(de)(de)。磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)通(tong)(tong)(tong)门(men)电(dian)流(liu)传(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)采用(yong)高(gao)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)导率的(de)(de)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)芯(xin)，通(tong)(tong)(tong)过(guo)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)芯(xin)的(de)(de)交替饱和(he)，产(chan)生的(de)(de)感(gan)(gan)(gan)(gan)应电(dian)压和(he)被测(ce)(ce)(ce)电(dian)流(liu)之间存(cun)在(zai)着一定的(de)(de)数(shu)量(liang)关系，从(cong)而可以得到(dao)被测(ce)(ce)(ce)电(dian)流(liu)。它实际上检(jian)(jian)(jian)(jian)测(ce)(ce)(ce)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)场的(de)(de)变化，通(tong)(tong)(tong)过(guo)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)与电(dian)的(de)(de)联系来得到(dao)被测(ce)(ce)(ce)电(dian)流(liu)。近几年，随着软磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)材料的(de)(de)发展(zhan)和(he)电(dian)子(zi)元(yuan)器(qi)(qi)(qi)(qi)(qi)(qi)件的(de)(de)革新(xin)，磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)通(tong)(tong)(tong)门(men)电(dian)流(liu)传(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)性(xing)(xing)能不断(duan)提高(gao)，其(qi)应用(yong)范围不断(duan)扩大，受(shou)(shou)到(dao)越来越多的(de)(de)关注。将磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)调(diao)制(zhi)(zhi)器(qi)(qi)(qi)(qi)(qi)(qi)与磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)(ci)积分器(qi)(qi)(qi)(qi)(qi)(qi)结合，研制(zhi)(zhi)用(yong)于(yu)质(zhi)子(zi)同(tong)(tong)步器(qi)(qi)(qi)(qi)(qi)(qi)系统中(zhong)粒(li)子(zi)流(liu)检(jian)(jian)(jian)(jian)测(ce)(ce)(ce)的(de)(de)宽(kuan)频电(dian)流(liu)互感(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)，扩展(zhan)了电(dian)流(liu)测(ce)(ce)(ce)量(liang)带宽(kuan)。珠海车规级电(dian)流(liu)传(chuan)(chuan)感(gan)(gan)(gan)(gan)器(qi)(qi)(qi)(qi)(qi)(qi)哪(na)家便宜

电(dian)(dian)流测量(liang)是(shi)电(dian)(dian)气(qi)测量(liang)中(zhong)的(de)基本而重(zhong)(zhong)要的(de)方面(mian)之一，在在科(ke)学研究(jiu)、工(gong)业生产还是(shi)日常生活中(zhong)，都发(fa)挥着重(zhong)(zhong)要作用。宁(ning)波国(guo)产替(ti)代(dai)电(dian)(dian)流传感(gan)器价格(ge)大全(quan)

当一(yi)(yi)二次(ci)(ci)磁势平衡(heng)时(shi)，环形铁芯C1及C2磁势平衡(heng)方程满(man)足(zu)：NPIP+NFIF=0（3－1）由(you)式（3－1）可知，当系(xi)统达(da)到平衡(heng)时(shi)，一(yi)(yi)次(ci)(ci)电(dian)(dian)(dian)流(liu)(liu)与反(fan)馈(kui)(kui)(kui)电(dian)(dian)(dian)流(liu)(liu)成比(bi)例，比(bi)例系(xi)数(shu)为(wei)NF/NP。即(ji)通过测(ce)量(liang)反(fan)馈(kui)(kui)(kui)绕(rao)组中(zhong)(zhong)的电(dian)(dian)(dian)流(liu)(liu)幅值大(da)小(xiao)即(ji)可对一(yi)(yi)次(ci)(ci)交直流(liu)(liu)电(dian)(dian)(dian)流(liu)(liu)幅值进行测(ce)量(liang)，反(fan)馈(kui)(kui)(kui)电(dian)(dian)(dian)流(liu)(liu)的相(xiang)位(wei)与一(yi)(yi)次(ci)(ci)电(dian)(dian)(dian)流(liu)(liu)相(xiang)位(wei)相(xiang)反(fan)。实际新型交直流(liu)(liu)传(chuan)感器通过测(ce)量(liang)串(chuan)接在反(fan)馈(kui)(kui)(kui)绕(rao)组中(zhong)(zhong)的终端(duan)测(ce)量(liang)电(dian)(dian)(dian)阻RM上的终端(duan)测(ce)量(liang)电(dian)(dian)(dian)压(ya)(ya)信(xin)(xin)号(hao)VRM间接完成反(fan)馈(kui)(kui)(kui)电(dian)(dian)(dian)流(liu)(liu)测(ce)量(liang)，终端(duan)测(ce)量(liang)电(dian)(dian)(dian)压(ya)(ya)信(xin)(xin)号(hao)VRM与一(yi)(yi)次(ci)(ci)电(dian)(dian)(dian)流(liu)(liu)IP满(man)足(zu)：I=IF=NNR（3－2）式（3－2）表明终端(duan)测(ce)量(liang)电(dian)(dian)(dian)压(ya)(ya)信(xin)(xin)号(hao)VRM与一(yi)(yi)次(ci)(ci)电(dian)(dian)(dian)流(liu)(liu)IP成比(bi)例，其(qi)中(zhong)(zhong)负号(hao)表示两者(zhe)相(xiang)位(wei)相(xiang)反(fan)。同(tong)时(shi)根据式（3－2）可得新型交直流(liu)(liu)电(dian)(dian)(dian)流(liu)(liu)传(chuan)感器的灵敏(min)度SD1为(wei)：dVRMNPRMD1dIPNF宁波(bo)国产(chan)替代电(dian)(dian)(dian)流(liu)(liu)传(chuan)感器价(jia)格大(da)全

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