新型交直(zhi)流(liu)傳(chuan)感器(qi)(qi)的(de)(de)(de)(de)誤(wu)差影響(xiang)因素包括： 誤(wu)差控制電(dian)(dian)路比(bi)例環 節(jie)比(bi)例系(xi)(xi)數(shu) KPI 、積(ji)分(fen)環節(jie)的(de)(de)(de)(de)積(ji)分(fen)時間(jian)常(chang)(chang)數(shu) τ1 、反饋繞(rao)組(zu) WF 的(de)(de)(de)(de)復阻(zu)(zu)抗 ZF 、激磁(ci)繞(rao)組(zu)匝(za) 數(shu) N1、反饋繞(rao)組(zu)匝(za)數(shu) NF、終(zhong)端(duan)測(ce)量電(dian)(dian)阻(zu)(zu) RM 及(ji)采(cai)樣(yang)電(dian)(dian)阻(zu)(zu) RS1。通(tong)(tong)過減(jian)小終(zhong)端(duan)測(ce)量電(dian)(dian)阻(zu)(zu) RM 阻(zu)(zu)值， 降低(di)激磁(ci)繞(rao)組(zu)匝(za)數(shu) N1 ，增大(da)采(cai)樣(yang)電(dian)(dian)阻(zu)(zu) RS1 阻(zu)(zu)值， 及(ji)增大(da)各個放大(da)電(dian)(dian)路開(kai)環增益均(jun) 可降低(di)新型交直(zhi)流(liu)電(dian)(dian)流(liu)傳(chuan)感器(qi)(qi)的(de)(de)(de)(de)穩態誤(wu)差。傳(chuan)統鐵磁(ci)元(yuan)件分(fen)析過程中(zhong)(zhong)常(chang)(chang)見的(de)(de)(de)(de)影響(xiang)因素， 系(xi)(xi)統的(de)(de)(de)(de)磁(ci)性誤(wu)差， 如(ru)外界(jie)電(dian)(dian)磁(ci)干擾、繞(rao)組(zu)繞(rao)線的(de)(de)(de)(de)不(bu)均(jun)勻性導(dao)致的(de)(de)(de)(de)漏磁(ci)通(tong)(tong)及(ji)鐵磁(ci)元(yuan)件本身(shen) 漏磁(ci)通(tong)(tong)的(de)(de)(de)(de)影響(xiang)， 以及(ji)一(yi)次繞(rao)組(zu)偏心導(dao)致的(de)(de)(de)(de)一(yi)次繞(rao)組(zu)磁(ci)勢不(bu)對(dui)稱所帶來的(de)(de)(de)(de)誤(wu)差， 在(zai)系(xi)(xi)統建模中(zhong)(zhong)未以考慮。 另(ling)外， 系(xi)(xi)統的(de)(de)(de)(de)容(rong)性誤(wu)差， 如(ru)繞(rao)組(zu)匝(za)與匝(za)之(zhi)(zhi)間(jian)的(de)(de)(de)(de)匝(za)間(jian)電(dian)(dian)容(rong)， 不(bu)同繞(rao)組(zu)之(zhi)(zhi)間(jian) 的(de)(de)(de)(de)寄生(sheng)電(dian)(dian)容(rong)， 在(zai)一(yi)定程度(du)上(shang)對(dui)系(xi)(xi)統的(de)(de)(de)(de)誤(wu)差也(ye)有影響(xiang)。霍爾(er)電(dian)(dian)流(liu)傳(chuan)感器(qi)(qi)在(zai)測(ce)量電(dian)(dian)流(liu)時可能會受到(dao)噪聲的(de)(de)(de)(de)影響(xiang)，例如(ru)熱(re)噪聲、散粒噪聲和閃爍(shuo)噪聲等(deng)。珠海電(dian)(dian)流(liu)傳(chuan)感器(qi)(qi) 原理

根據自激(ji)振蕩(dang)磁(ci)(ci)通(tong)門(men)傳感器(qi)(qi)線性度設計(ji)原則設計(ji)飽和閾值(zhi)電(dian)流(liu)(liu)(liu) Ith，激(ji)磁(ci)(ci)電(dian)流(liu)(liu)(liu)峰值(zhi) Im 以滿足 Im>>Ith 。其(qi)(qi)中(zhong)零(ling)磁(ci)(ci)通(tong)交直流(liu)(liu)(liu)檢(jian)測器(qi)(qi)由比較放(fang)(fang)(fang)(fang)大(da)器(qi)(qi) U1 供電(dian)，因此需要考慮(lv)比較放(fang)(fang)(fang)(fang) 大(da)器(qi)(qi) U1 的(de)(de)帶(dai)載(zai)能力及 U1 的(de)(de)各項性能參數對自激(ji)振蕩(dang)磁(ci)(ci)通(tong)門(men)傳感器(qi)(qi)測量(liang)精度的(de)(de)影響。選 擇高精密(mi)運(yun)算放(fang)(fang)(fang)(fang)大(da)器(qi)(qi) OP27G，為(wei)雙電(dian)源供電(dian)，供電(dian)電(dian)壓大(da)為(wei)±15 V，帶(dai) 100 歐(ou)負載(zai) 下，輸出電(dian)流(liu)(liu)(liu)可達 40 mA，屬于(yu)(yu)(yu)大(da)電(dian)流(liu)(liu)(liu)輸出型運(yun)算放(fang)(fang)(fang)(fang)大(da)器(qi)(qi)。同(tong)時 OP27G 運(yun)算放(fang)(fang)(fang)(fang)大(da)器(qi)(qi)具 有(you)頻帶(dai)寬，噪(zao)(zao)聲(sheng)小的(de)(de)特(te)點，其(qi)(qi)輸入(ru)失調電(dian)流(liu)(liu)(liu)小于(yu)(yu)(yu) 35 nA，單位增益帶(dai)寬積為(wei) 8 MHz，當 測量(liang)低于(yu)(yu)(yu) 10 Hz 的(de)(de)低頻信號，其(qi)(qi)電(dian)路噪(zao)(zao)聲(sheng)峰值(zhi)小于(yu)(yu)(yu) 80 nVp-p。嘉興工控級電(dian)流(liu)(liu)(liu)傳感器(qi)(qi)提出了基于(yu)(yu)(yu)自激(ji)振蕩(dang)磁(ci)(ci)通(tong)門(men)原理(li)結(jie)合磁(ci)(ci)積分器(qi)(qi)原理(li)的(de)(de)交直流(liu)(liu)(liu)電(dian)流(liu)(liu)(liu)檢(jian)測方法。

無錫納吉伏公司基于自(zi)(zi)激振(zhen)(zhen)蕩(dang)(dang)磁通(tong)(tong)門(men)(men)技術并(bing)結(jie)(jie)合(he)傳(chuan)(chuan)統電(dian)(dian)(dian)流(liu)(liu)(liu)比(bi)較儀結(jie)(jie)構設計了(le)新(xin)型(xing)交(jiao)(jiao)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)(liu)傳(chuan)(chuan)感(gan)器(qi)，介(jie)紹了(le)其系(xi)統組成及(ji)工作(zuo)原理。通(tong)(tong)過分析(xi)新(xin)型(xing)交(jiao)(jiao)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)傳(chuan)(chuan)感(gan)器(qi)的(de)誤(wu)(wu)(wu)差來源，對(dui)傳(chuan)(chuan)統自(zi)(zi)激振(zhen)(zhen)蕩(dang)(dang)磁通(tong)(tong)門(men)(men)傳(chuan)(chuan)感(gan)器(qi)進(jin)行(xing)改(gai)進(jin)，提出了(le)本文(wen)方案中基于雙鐵芯結(jie)(jie)構自(zi)(zi)激振(zhen)(zhen)蕩(dang)(dang)磁通(tong)(tong)門(men)(men)傳(chuan)(chuan)感(gan)器(qi)的(de)交(jiao)(jiao)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)檢(jian)測(ce)(ce)器(qi)，同時(shi)也對(dui)解調電(dian)(dian)(dian)路進(jin)行(xing)了(le)相關(guan)優化改(gai)進(jin)。并(bing)結(jie)(jie)合(he)自(zi)(zi)動控制理論(lun)建立了(le)新(xin)型(xing)交(jiao)(jiao)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)(liu)傳(chuan)(chuan)感(gan)器(qi)的(de)交(jiao)(jiao)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)穩態誤(wu)(wu)(wu)差模型(xing)，明(ming)確了(le)影響新(xin)型(xing)交(jiao)(jiao)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)傳(chuan)(chuan)感(gan)器(qi)穩態測(ce)(ce)量誤(wu)(wu)(wu)差的(de)各項因素，為設計新(xin)型(xing)交(jiao)(jiao)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)傳(chuan)(chuan)感(gan)器(qi)提供(gong)理論(lun)依據及(ji)參(can)考方向。依據上述(shu)理論(lun)研(yan)究，設計了(le)高(gao)線性度與靈敏度的(de)交(jiao)(jiao)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)(liu)檢(jian)測(ce)(ce)器(qi)，依據誤(wu)(wu)(wu)差抑制方法及(ji)優化設計原則對(dui)其信號(hao)處理電(dian)(dian)(dian)路、電(dian)(dian)(dian)流(liu)(liu)(liu)反饋(kui)電(dian)(dian)(dian)路、終端測(ce)(ce)量電(dian)(dian)(dian)阻和電(dian)(dian)(dian)磁屏蔽進(jin)行(xing)相應設計。然后結(jie)(jie)合(he)零磁通(tong)(tong)交(jiao)(jiao)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)檢(jian)測(ce)(ce)器(qi)的(de)優化設計，完成了(le)高(gao)精度交(jiao)(jiao)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)(liu)傳(chuan)(chuan)感(gan)器(qi)樣機研(yan)制。

隨著智能(neng)(neng)電(dian)網的(de)快速(su)建設，交(jiao)直(zhi)流(liu)(liu)(liu)混合配(pei)電(dian)網的(de)不(bu)斷發展及配(pei)電(dian)網一體化配(pei)電(dian)成套設備的(de)不(bu)斷升級，交(jiao)流(liu)(liu)(liu)電(dian)網中出現了(le)直(zhi)流(liu)(liu)(liu)分(fen)量。而傳統(tong)電(dian)能(neng)(neng)計(ji)量設備，如電(dian)磁(ci)式互感(gan)器(qi)及直(zhi)流(liu)(liu)(liu)電(dian)流(liu)(liu)(liu)互感(gan)器(qi)均無法(fa)完成交(jiao)直(zhi)流(liu)(liu)(liu)電(dian)流(liu)(liu)(liu)同(tong)時(shi)測量，因此無錫(xi)納吉伏(fu)公司研發的(de)低成本、結構簡單的(de)高精度(du)交(jiao)直(zhi)流(liu)(liu)(liu)電(dian)流(liu)(liu)(liu)傳感(gan)器(qi)具有重(zhong)要(yao)意(yi)義。基于傳統(tong)單鐵芯自(zi)激振(zhen)蕩(dang)磁(ci)通門傳感(gan)器(qi)起振(zhen)原理(li)的(de)分(fen)析，建立了(le)自(zi)激振(zhen)蕩(dang)磁(ci)通門傳感(gan)器(qi)數學(xue)模型，同(tong)時(shi)對其交(jiao)直(zhi)流(liu)(liu)(liu)電(dian)流(liu)(liu)(liu)測量的(de)適(shi)應(ying)性進行研究，獲取其關鍵(jian)特性與設計(ji)參數之間的(de)定(ding)量關系(xi)。溫度(du)變化和電(dian)氣噪聲可能(neng)(neng)是影響分(fen)流(liu)(liu)(liu)器(qi)精度(du)的(de)主(zhu)要(yao)因素。

根據電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)互感(gan)(gan)(gan)器(qi)檢(jian)測(ce)相關規(gui)范及其章程(cheng)，設計(ji)(ji)合(he)理(li)實驗(yan)(yan)方案，對新(xin)型交(jiao)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)傳感(gan)(gan)(gan)器(qi)主要計(ji)(ji)量性(xing)能(neng)參數進行(xing)測(ce)試(shi)，主要測(ce)試(shi)項目(mu)包括：（1）交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)計(ji)(ji)量性(xing)能(neng)測(ce)試(shi)；（2）直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)計(ji)(ji)量性(xing)能(neng)測(ce)試(shi)；（3）交(jiao)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)同(tong)時(shi)測(ce)量時(shi)交(jiao)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)計(ji)(ji)量性(xing)能(neng)測(ce)試(shi)；為了構建一(yi)(yi)(yi)二(er)次融合(he)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)場(chang)景，實驗(yan)(yan)時(shi)選擇比例直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)疊(die)加法構建一(yi)(yi)(yi)次交(jiao)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)，將交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)分(fen)量和直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)分(fen)量單(dan)獨輸出(chu)，試(shi)驗(yan)(yan)原理(li)框圖(tu)(tu)如圖(tu)(tu)5-1所示(shi)。圖(tu)(tu)中，被(bei)檢(jian)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)傳感(gan)(gan)(gan)器(qi)TAX即為本(ben)文研制的(de)高(gao)精度(du)交(jiao)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)傳感(gan)(gan)(gan)器(qi)，交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)由(you)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)源和升流(liu)(liu)(liu)(liu)(liu)(liu)(liu)器(qi)產(chan)(chan)生，一(yi)(yi)(yi)次電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)同(tong)時(shi)穿過被(bei)檢(jian)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)傳感(gan)(gan)(gan)器(qi)TAX和標準(zhun)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)互感(gan)(gan)(gan)器(qi)TA0，直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)由(you)直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)源產(chan)(chan)生并通過等安匝繞在(zai)被(bei)檢(jian)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)傳感(gan)(gan)(gan)器(qi)TAX上(shang)(shang)。被(bei)檢(jian)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)傳感(gan)(gan)(gan)器(qi)TAX的(de)輸出(chu)在(zai)采樣電(dian)(dian)(dian)阻(zu)上(shang)(shang)RM取出(chu)，一(yi)(yi)(yi)方面接入電(dian)(dian)(dian)子式(shi)互感(gan)(gan)(gan)器(qi)校驗(yan)(yan)儀，用于(yu)和標準(zhun)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)互感(gan)(gan)(gan)器(qi)的(de)輸出(chu)進行(xing)比對，給出(chu)交(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)測(ce)量誤差(cha)；另(ling)一(yi)(yi)(yi)方面接入六位半數字萬用表DMM，與直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)源輸出(chu)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)采樣電(dian)(dian)(dian)阻(zu)Rdc上(shang)(shang)的(de)輸出(chu)電(dian)(dian)(dian)壓進行(xing)比對，確定直(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)測(ce)量誤差(cha)。由(you)于(yu)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)的(de)變(bian)化(hua)速度(du)很快，對電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)傳感(gan)(gan)(gan)器(qi)的(de)帶寬要求很高(gao)。惠(hui)州高(gao)線性(xing)度(du)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)傳感(gan)(gan)(gan)器(qi)價格

磁通(tong)門電(dian)流傳感器可(ke)以用于監測電(dian)池(chi)(chi)的電(dian)量和(he)電(dian)流，提高(gao)電(dian)池(chi)(chi)的使(shi)用效(xiao)率和(he)安全性。珠海電(dian)流傳感器 原理(li)

充(chong)電(dian)(dian)(dian)(dian)(dian)至t1時(shi)(shi)刻(ke)后(hou)，由于鐵(tie)(tie)芯(xin)(xin)C1飽和，激(ji)磁(ci)(ci)感(gan)抗(kang)ZL迅(xun)速變小(xiao)，因(yin)此t1～t2期間(jian)(jian)，激(ji)磁(ci)(ci)電(dian)(dian)(dian)(dian)(dian)流(liu)iex迅(xun)速增大(da)，當激(ji)磁(ci)(ci)電(dian)(dian)(dian)(dian)(dian)流(liu)iex達到(dao)充(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流(liu)Im=ρVOH/RS時(shi)(shi)，電(dian)(dian)(dian)(dian)(dian)路環路增益11ρAv>>1滿足振蕩電(dian)(dian)(dian)(dian)(dian)路起振條件，方(fang)波激(ji)磁(ci)(ci)電(dian)(dian)(dian)(dian)(dian)壓發(fa)生(sheng)反(fan)轉，輸(shu)出電(dian)(dian)(dian)(dian)(dian)壓由正(zheng)(zheng)向(xiang)(xiang)(xiang)峰值(zhi)電(dian)(dian)(dian)(dian)(dian)壓VOH變為反(fan)向(xiang)(xiang)(xiang)峰值(zhi)電(dian)(dian)(dian)(dian)(dian)壓VOL，即t2時(shi)(shi)刻(ke)，VO=VOL。t2時(shi)(shi)刻(ke)起，鐵(tie)(tie)芯(xin)(xin)C1工作(zuo)點由正(zheng)(zheng)向(xiang)(xiang)(xiang)飽和區B開始向(xiang)(xiang)(xiang)線性區A移動。在t2～t3期間(jian)(jian)，鐵(tie)(tie)芯(xin)(xin)C1仍工作(zuo)于正(zheng)(zheng)向(xiang)(xiang)(xiang)飽和區B，激(ji)磁(ci)(ci)感(gan)抗(kang)ZL小(xiao)，而輸(shu)出方(fang)波電(dian)(dian)(dian)(dian)(dian)壓反(fan)向(xiang)(xiang)(xiang)，此時(shi)(shi)加在非(fei)線性電(dian)(dian)(dian)(dian)(dian)感(gan)L上反(fan)相端電(dian)(dian)(dian)(dian)(dian)壓V-=ρVOL，產生(sheng)的充(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流(liu)反(fan)向(xiang)(xiang)(xiang)，因(yin)此非(fei)線性電(dian)(dian)(dian)(dian)(dian)感(gan)L開始迅(xun)速放電(dian)(dian)(dian)(dian)(dian)，激(ji)磁(ci)(ci)電(dian)(dian)(dian)(dian)(dian)流(liu)iex開始降(jiang)(jiang)低，于t3時(shi)(shi)刻(ke)激(ji)磁(ci)(ci)電(dian)(dian)(dian)(dian)(dian)流(liu)iex降(jiang)(jiang)至正(zheng)(zheng)向(xiang)(xiang)(xiang)激(ji)磁(ci)(ci)電(dian)(dian)(dian)(dian)(dian)流(liu)閾值(zhi)I+th。珠海電(dian)(dian)(dian)(dian)(dian)流(liu)傳感(gan)器 原(yuan)理

本文來自沈陽喜納多采暖(nuan)工(gong)程有限公(gong)司(si)：//zjlong.cn/Article/12f399678.html