基本定義

 

什麼是磁傳感器
？就是把磁場
、電流、應力應變、溫度、guangdengyinqiminganyuanjiancixingnengdebianhuazhuanhuanchengdianxinhao，yizhezhongfangshilaijiancexiangyingwuliliangdeqijian。shenmedongxihuichanshengcichang？diqiuhuichanshengcichang，ruguoninengcediqiubiaomiancichangjiukeyizuozhinanzhen，renhedianliudounengchanshengcichang
，dianliuchuanganqiyeshicichangchuanganqi。dianliuchuanganqikeyiyongzaijiayongdianqi、智能電網、電動車
、fenglifadiandengdeng。disanleichuanganqijiaozuoweizhichuanganqi，ruguoniyigecitihecichuanganqixianghuzhijianyouweizhibianhua

，zhegeweizhibianhuashixianxingdejiushixianxingchuanganqi，ruguozhuandongdejiushizhuandongchuanganqi。dajiazaishenghuozhongdouyongdaohenduocichuanganqi
，birushuodiannaoyingpan、指南針，家用電器等等。

 

概述

 

在今天所用的電磁效應的傳感器中，磁旋轉傳感器是重要的一種。磁旋轉傳感器主要由半導體磁阻元件
、永久磁鐵、固定器
、外wai殼ke等deng幾ji個ge部bu分fen組zu成cheng。典dian型xing結jie構gou是shi將jiang一yi對dui磁ci阻zu元yuan件jian安an裝zhuang在zai一yi個ge永yong磁ci體ti的de刺ci激ji上shang
，元yuan件jian的de輸shu入ru輸shu出chu端duan子zi接jie到dao固gu定ding器qi上shang，然ran後hou安an裝zhuang在zai金jin屬shu盒he中zhong，再zai用yong工gong程cheng塑su料liao密mi封feng，形xing成cheng密mi閉bi結jie構gou，這zhe個ge結jie構gou就jiu具ju有you良liang好hao的de可ke靠kao性xing。磁ci旋xuan轉zhuan傳chuan感gan器qi有you許xu多duo半ban導dao體ti磁ci阻zu元yuan件jian無wu法fa比bi擬ni的de優you點dian。除chu了le具ju備bei很hen高gao的de靈ling敏min度du和he很hen大da的de輸shu出chu信xin號hao外wai
，而er且qie有you很hen強qiang的de轉zhuan速su檢jian測ce範fan圍wei，這zhe是shi由you於yu電dian子zi技ji術shu發fa展zhan的de結jie果guo。另ling外wai，這zhe種zhong傳chuan感gan器qi還hai能neng夠gou應ying用yong在zai很hen大da的de溫wen度du範fan圍wei中zhong，有you很hen長chang的de工gong作zuo壽shou命ming、抗灰塵、水和油汙的能力強，因此耐受各種環境條件及外部噪聲。所以，這種傳感器在工業應用中受到廣泛的重視。

 

 

cixuanzhuanchuanganqizaigongchangzidonghuaxitongzhongyouguangfandeyingyong，yinweizhezhongchuanganqiyouzhelingrenmanyidetexing，tongshibuxuyaoweihu。qizhuyaoyingyongzaijichuangsifudianjidezhuandongjiance

、工廠自動化的機器人臂的定位、液壓衝程的檢測、工廠自動化相關設備的位置檢測、旋轉編碼器的檢測單元和各種旋轉的檢測單元等。

 

工作原理

 

dianciliuliangchuanganqishigenjufaladidianciganyingdinglvshejide，zaiceliangguanzhouxianhecichangcilixianxianghuchuizhideguanbishanganzhuangyiduijiancedianji，dangdaodianyetiyanceliangguanzaijiaobiancichangzhong，yucilixianchengchuizhifangxiangyundongshi
，daodianyetiqiegecilixianchanshengganyingdiandongshi
，ciganyingdiandongshiyouceliangguanshangdelianggejiancedianjijianchurutu1。用下列公式表示：

 

 

E=BVD （V）

 

式中：E－感應電動勢 V

 

B－磁場的磁通密度 T

 

V－導電液體平均流速 m/s

 

D－導管的內徑 m

 

 

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