Tam sim no ntsuas tus qauv rau AC clamp ammeters
Nyob rau hauv circuits nrog high tam sim no, clamp ammeters feem ntau yog siv rau kev ntsuas, uas muaj kev nyab xeeb;
Teem lub multimeter mus rau qhov tam sim no ntau yam, thiab tom qab ntawd txuas nws hauv cov kab hauv Circuit Court ntawm qhov tam sim no ntsuas. Nws yuav tsum raug sau tseg tias yog tias nws yog DC Circuit Court, yuav tsum tau them nyiaj rau polarity. Txawm hais tias ntsuas tam sim no lossis qhov hluav taws xob, lub ntsuas hluav taws xob yuav tsum tau hloov kho rau cov iav sib thooj, uas yog, lub iav ntawm lub ntsuas hluav taws xob yuav tsum siab dua qhov voltage lossis tam sim no tus nqi ntawm cov khoom ntsuas. Kho rau tus nqi siab tshaj plaws thaum tsis paub meej.
Thaum ntsuas tam sim no, lub ammeter yuav tsum tau txuas nrog hauv series nrog lub load, vim hais tias tam sim no nyob rau hauv series Circuit Court yog sib npaug txhua qhov chaw, yog li tam sim no dhau los ntawm ammeter yog lub load tam sim no yuav tsum tau ntsuas. Yog tias kev sib txuas tsis raug, nws txuas nrog rau qhov sib npaug nrog lub nra, vim tias qhov kev tiv thaiv sab hauv ntawm lub ammeter me me heev. Nyob rau hauv qhov voltage ntawm lub load, ib tug loj tam sim no yuav dhau los ntawm, ua rau kev puas tsuaj rau lub ammeter.
Thaum ntsuas qhov hluav taws xob, nws yuav tsum tau txuas lub voltmeter nyob rau hauv parallel nrog lub load, vim hais tias nyob rau hauv ib tug parallel Circuit Court, qhov voltage nyob rau hauv tej ceg yog sib npaug zos, uas yog, qhov voltage ntawm ob kawg ntawm lub voltmeter yog qhov tseeb voltage ntawm lub load. Yog hais tias lub voltmeter yog muab tso rau hauv lub load Circuit Court, qhov tseeb voltage ntsuas tsis tau.
Cov qauv ntawm lub clamp hom ammeter yog qhov tseeb AC tam sim no transformer. Nws yog sib npaug rau lub transformer nrog tsuas yog ib tug tig ib tig thiab ntau lem ib tig, nrog rau lwm yam load yog yav dhau los AC ammeter.
Thaum lub clamp ammeter clamps ib theem hlau, nws yog sib npaug rau muaj winding. Nyob rau ntawm lub sijhawm no, kev ua haujlwm tam sim no ua rau cov hlau nplaum sib nqus hauv cov hlau txuas ntawm lub clamp ammeter, thiab cov hlau nplaum sib nqus tau dhau los ntawm cov cua ntsawj ntshab thib ob kom ua rau cov hluav taws xob theem nrab thiab tsim tam sim no hauv cov khoom nruab nrab. Qhov loj ntawm qhov nruab nrab tam sim no yog ncaj qha proportional rau thawj tam sim no, yog li tus nqi qhia los ntawm lub 'meter' tuaj yeem cuam tshuam ncaj qha rau qhov loj ntawm thawj qhov chaw ua haujlwm tam sim no. Yog li nws tsis tas yuav txiav lub voj voog los ntsuas qhov tam sim no.
