Puas yog clamp meter zoo dua lossis multimeter zoo dua?
Clamp meters thiab multimeters muaj lawv tus kheej qhov zoo thiab qhov tsis zoo raws li qhov chaw sib txawv uas cov kws siv hluav taws xob siv lawv. Nws tsis yooj yim sua kom hais tias lawv zoo lossis phem. Clamp meters tau muab faib ua txhua yam pointer clamp meters thiab digital clamp meters. Nws qhov txiaj ntsig loj tshaj plaws yog tias nws tuaj yeem ntsuas qhov loj ntawm qhov tam sim no hauv kab yam tsis muaj kev cuam tshuam cov kab ntsuas. Txawm hais tias hom clamp meter yog clamped, nws feem ntau tsuas yog ntsuas AC tam sim no, thiab tseem muaj qee qhov clamp ammeters tshwj xeeb uas siv los ntsuas DC tam sim no. Qhov nrov tshaj plaws digital clamp meters tau qhia hauv daim duab hauv qab no. Txhawm rau kom ntseeg tau qhov raug thiab kev nyab xeeb ntawm kev ntsuas, cov kev kuaj hauv qab no yuav tsum tau ua ntawm lub clamp ammeter ua ntej siv.
① Kev tshuaj xyuas qhov tshwm sim: yuav tsum tsis muaj qhov tsis xws li kev puas tsuaj, tshwj xeeb tshaj yog ua tib zoo saib xyuas tias lub puab tsaig yuav tsum raug kaw kom nruj, thiab cov tub ntxhais hlau yuav tsum tsis muaj xeb thiab av.
②Yog tias nws yog lub ntsuas ntsuas ntsuas qhov ntsuas qhov ntsuas, tus taw tes yuav tsum taw tes rau "{{0}}" nyob rau lub sijhawm no, txwv tsis pub nws yuav tsum tau hloov mus rau "0".
③ Kwv yees qhov loj ntawm qhov ntsuas tam sim no thiab xaiv lub iav tsim nyog. Lub hauv paus ntsiab lus ntawm kev xaiv iav yog: kho cov iav uas ntau dua qhov ntsuas tus nqi thiab ze rau nws. Thaum ntsuas, qhib lub puab tsaig, clamp cov hlau los ntsuas rau hauv lub puab tsaig, kaw lub puab tsaig, deflect ob txhais tes, thiab nyeem cov ntsuas tam sim no. Ua ntej nyeem ntawv, lub clamp ammeter yuav tsum tau muab tso rau hauv lub tiaj li sai tau (mechanical pointer clamp meter), digital clamp meter tsis muaj teeb meem.
Cov teeb meem xav tau kev saib xyuas hauv clamp ammeter ntsuas
① Cov hnab looj tes yuav tsum tau hnav thaum lub sijhawm kuaj (cov hnab looj tes insulated yuav tsum huv thiab qhuav cov hnab looj tes), thiab tus neeg saib xyuas yuav tsum tau muab yog tias tsim nyog.
② Thaum hloov lub zog rau kev ntsuas, cov hlau yuav tsum tau muab tshem tawm ntawm lub puab tsaig ua ntej, thiab tom qab ntawd muab khi rau hauv cov hlau rau kev ntsuas tom qab hloov lub zog.
③ Lub voltage ntawm cov hlau nyob rau hauv kev ntsuam xyuas tsis tuaj yeem tshaj qhov voltage ntawm lub clamp meter.
④ Nws yog txwv tsis pub siv clamp meter los ntsuas cov rwb thaiv tsev tsis zoo thiab cov xov hlau liab qab.
⑤ Thaum ntsuas, ua tib zoo saib xyuas kom muaj kev nyab xeeb ntawm cov khoom nyob ze, thiab ceev faj kom tsis txhob ua rau theem-rau-theem luv-circuit thiab theem-rau-hauv av luv-circuit.
⑥ Ib puag ncig kub tsis haum rau ntsuas kab tam sim no. Nws tsis tsim nyog ntsuas nyob ze ntawm qhov chaw sib nqus muaj zog. Sab nraud magnetic teb muaj kev cuam tshuam zoo rau qhov ntsuas tus nqi. Lub clamp ammeter yuav tsum tsis txhob ntsuas ntawm ib sab ntawm cov khoom siv siab tam sim no xws li busbars, lub cev muaj peev xwm loj, thiab transformers. Nws yuav tsum tau ntsuas nyob rau hauv lwm qhov chaw kom txo tau qhov yuam kev tshwm sim los ntawm lub magnetic teb. luv luv.
⑦ Nws tsis haum rau kev ntsuas hauv qhov chaw ntub dej thiab nag xob nag cua, vim tias lub ntsuas ntsuas clamp yuav tsum ntsuas ncaj qha los ntawm tes, thiab cov cuab yeej siv hluav taws xob ua haujlwm, lub puab tsaig thiab cov tes tuav ntawm lub clamp ammeter thiab tes ntawm cov neeg ntsuas yuav tsum tau ua kom huv si thiab qhuav thaum ntsuas.
⑧ Lub clamp ammeter muaj qhov yuam kev loj hauv kev ntsuas tsis yog kev lag luam tam sim no. Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm clamp-on ammeter txiav txim siab tias yuav tsum siv lub ntsuas ntsuas clamp-on meter raws li qhov ntsuas ntsuas. Ntxiv nrog rau kev ntsuas sine yoj tam sim no, yuav muaj qhov yuam kev hauv kev ntsuas ntawm lwm cov waveform tam sim no. Feem ntau, qhov yuam kev waveform ntawm khib-order harmonics yog loj dua qhov kev txiav txim spectral waves. , tshwj xeeb tshaj yog 3rd harmonic yuam kev yog qhov loj tshaj plaws, thiab ib nrab-yoj rectified tam sim no yog ntsuas nrog lub clamp ammeter, thiab qhov yuam kev kuj tseem loj.
⑨ Tom qab siv, lub iav txoj hauj lwm yuav tsum tau teem rau lub siab tshaj plaws tam sim no theem. Yog tias muaj lub ntsej muag saib, muab tso rau hauv lub ntsej muag saib, thiab muab tso rau hauv qhov chaw qhuav, tsis muaj plua plav, tsis muaj roj corrosive thiab qhov chaw tsis muaj kev vibration.
⑩ High-voltage tam sim no ntsuas tsis tau, thiab qhov voltage ntawm lub voj voog nyob rau hauv kev ntsuam xyuas tsis tuaj yeem tshaj qhov ntsuas hluav taws xob ntawm lub clamp ammeter. Clamp meters tsis tuaj yeem ntsuas cov khoom siv hluav taws xob siab. Multimeter muaj qhov zoo ntawm ntau lub hom phiaj, ntau yam, thiab siv tau yooj yim. Nws yog cov cuab yeej siv feem ntau hauv kev ntsuas hluav taws xob. Hauv kev kho hluav taws xob ua haujlwm nws tuaj yeem siv los ntsuas qhov tsis kam, AC thiab DC voltage thiab DC tam sim no. Qee qhov multimeters kuj tuaj yeem ntsuas qhov tseem ceeb ntawm cov transistors thiab cov capacitance ntawm capacitor. Mastering kev siv multimeters yog ib qho kev txawj ntse hauv electrotechnical technology. Multimeters muaj xws li pointer multimeters thiab digital multimeters. Lub pointer multimeter yog ib qho kev ntsuas ntau yam nrog lub ntsuas lub taub hau raws li cov ntsiab lus tseem ceeb, thiab ntsuas tus nqi yog nyeem los ntawm tus pointer ntawm lub taub hau meter.
