Vim li cas lub multimeter tsis muaj kev nyeem ntawv capacitance
Lub peev xwm ntawm lub capacitor tuaj yeem ntsuas tau siv lub multimeter, thiab multimeter kuj tuaj yeem siv los txiav txim seb lub capacitor puas zoo lossis phem. Yog li dab tsi yog qhov teeb meem yog tias peb siv lub multimeter los ntsuas qhov capacitance tab sis tsis muaj lus teb?
1. Multimeter thiab capacitor tsis muaj peev xwm
Ua ntej ntawm tag nrho cov, peb yuav tsum txiav txim seb lub multimeter faulty. Li cas txog nws? Cov txheej txheem los kuaj xyuas qhov tsis ua haujlwm multimeter yog siv lub multimeter los ntsuas qhov tsis kam. Yog tias muaj tus qauv tsis kam, ntsuas tus qauv tsis kam tuaj yeem ntsuas qhov hluav taws xob tsis kam ntawm multimeter. Yog tias koj hnov mob thaum Wang Yongmeter ntsuas qhov tsis kam thiab tus nqi yog qhov qub, ces peb tuaj yeem txiav txim siab tias lub multimeter tsis puas.
Lub capacitor tsis muaj peev xwm, uas tsis tuaj yeem pom ntawm qhov muag liab qab. Yog tias peb siv multimeter thiab tsis muaj lus teb, ces peb yuav tsum hloov nws nrog lub capacitor tshiab thiab siv multimeter los ntsuas nws. Yog tias lub capacitor no teb, ces peb tuaj yeem txiav txim siab seb lub capacitor yav dhau los tsis teb. Ua rau tsis muaj peev xwm.
2. Tsis xaiv lub iav tsim nyog
Txhawm rau ntsuas capacitance, koj tuaj yeem siv qhov kev teeb tsa tsis kam lossis qhov teeb tsa capacitance. Koj tuaj yeem siv analog multimeter lossis digital multimeter. Yog tias koj siv analog multimeter, koj yuav tsum xaiv lub sijhawm zoo. Yog tias lub capacitance loj, peb sim xaiv qhov chaw me me, kom nws pom tseeb dua thaum peb soj ntsuam qhov rov qab mus rau qhov qub. Yog tias lub peev xwm capacitor loj thiab cov iav loj raug xaiv, qhov hloov pauv me me, thiab qee zaum peb tsis tuaj yeem ntes nws ntawm qhov muag liab qab.
Yog tias peb xaiv digital multimeter, peb yuav tsum xub nrhiav lub iav zoo thiab saib xyuas qhov kev hloov pauv ntawm tus nqi. Feem ntau, lub capacitor yuav hloov pauv thaum nws tawm, thiab tom qab ntawd rov qab mus rau cov txheej txheem tawm, qhia tias lub capacitor zoo.
3. Xaiv ib lub multimeter ncaj qha los ntsuas tus nqi capacitance
Nrog rau cov kev paub dhau los, peb tuaj yeem ncaj qha mus yuav ib lub multimeter uas tuaj yeem ntsuas tus nqi capacitance. Teem lub multimeter mus rau qhov chaw capacitance. Muab cov hlau xeem liab tso rau ntawm ib ko taw thiab qhov kev sim dub ntawm lwm tus ko taw. Feem ntau, qhov teeb tsa capacitance ntawm multimeter tsuas muaj ib qho chaw. , txuas nws ncaj qha rau kev ntsuas. Yog hais tias lub capacitance zoo, tus nqi capacitance yuav raug tso tawm ncaj qha rau ntawm qhov screen, thiab tus nqi ntsuas yuav muaj qhov yuam kev ntawm 5% ntawm tus nqi calibration.
