Kev sib raug zoo ntawm kev sib tw ceev ntawm megohmmeter thiab ntsuas qhov ntsuas hluav taws xob tiv thaiv tus nqi
Hais txog kev sib raug zoo ntawm qhov ceev ntawm megohmmeter co thiab ntsuas qhov ntsuas hluav taws xob tiv thaiv tus nqi, txawm tias qhov ceev ntawm megohmmeter co yuav tsis cuam tshuam rau kev ntsuas ntawm cov nqi ruaj khov. Txawm li cas los xij, qhov xwm txheej ntawm kev siv megohmmeter los ntsuas kev tiv thaiv rwb thaiv tsev nrog DC resistance tester yuav txawv.
Kev co ceev ntawm megohmmeter
Qhov ceev ntawm megohmmeter co ntsuas feem ntau tsis cuam tshuam qhov ntsuas ntawm qhov ruaj khov siab ntev ntev npaum li qhov ceev tsis sib xws.
Vim hais tias los ntawm kev ntsuas mechanism ntawm megohmmeter, nws yog woven los ntawm ib tug magnetoelectric ratio meter thiab ib tug DC tes generator.
Qhov loj ntawm lub tshuab hluav taws xob hluav taws xob yog txiav txim siab los ntawm kev sib hloov ceev, thiab qhov ceev ntawm lub rotor rotates (piv txwv li qhov nrawm nrawm ntawm cov hlau nplaum hauv lub kauj), qhov siab dua qhov voltage generated. Raws li kev nyeem ntawv ntawm megohmmeter qhia txog qhov piv ntawm lub tshuab hluav taws xob hluav taws xob rau tam sim no, thaum muaj kev hloov pauv ntawm qhov hluav taws xob, qhov tam sim no dhau los ntawm lub kauj tam sim no ntawm megohmmeter kuj hloov pauv, yog li ntsuas ntsuas kev nyeem ntawv tseem tsis hloov pauv.
Txawm li cas los xij, qhov xwm txheej ntawm kev siv megohmmeter los ntsuas kev tiv thaiv rwb thaiv tsev nrog DC resistance tester yog txawv.
Vim hais tias cov xau tam sim no los ntawm kev rwb thaiv tsev nruab nrab muaj feem xyuam rau qib ntawm kev siv hluav taws xob, tshwj xeeb tshaj yog rau cov rwb thaiv tsev nrog cov teeb meem hauv zos, nws tuaj yeem cuam tshuam tsuas yog thaum qhov hluav taws xob nce mus txog ib theem. Yog tias qhov nrawm nrawm dhau thiab qhov hluav taws xob tsawg dhau, nws yuav ua rau qhov ntsuas ntsuas tau siab dhau.
Tsis tas li ntawd, kev ceev tsis sib xws kuj cuam tshuam rau kev ntsuas ntsuas. Yog tias qhov nrawm hloov ntawm nrawm mus qeeb, qhov hluav taws xob them ntawm ob qho kawg ntawm lub rwb thaiv tsev nruab nrab ntawm kev kub ceev yuav siab tshaj qhov hluav taws xob ntawm lub tshuab hluav taws xob megger, uas ua rau qhov rov qab tam sim no, uas yuav ua rau qhov ntsuas tau siab dua.
Nws tuaj yeem pom tau tias lub shaker yuav tsum tig tsis sib xws ntawm qhov ntsuas ceev, feem ntau teeb tsa ntawm 120 revolutions ib feeb, nrog rau qhov sib txawv ntawm ± 20 feem pua, tab sis tsis ntau tshaj ± 25 feem pua.
Txhawm rau kom ntseeg tau tias qhov kev sib hloov ceev ntawm lub tramegger tsis siab dhau, qee qhov trameggers tau nruab nrog tus tswv xeev hauv lub tshuab crank, uas siv lub zog inertial centrifugal. Thaum lub nrawm nrawm nrawm dhau, tus tswv xeev yuav cia li cais lub tshuab hluav taws xob rotor ntawm lub crank, thiab lub rotor ceev yuav maj mam poob. Thaum qhov ceev poob mus rau ib qho kev ceev, tus regulator yuav rov qab lub tshuab hluav taws xob rotor thiab lub crank rov qab mus rau lawv cov haujlwm qub.
