Yuav Ua Li Cas Ntsuam Xyuas Stator nrog Multimeter (3-Txoj Kev Ntsuas Kev Qhia)
Txheem
Lub alternator, muaj xws li ib tug stator thiab rotor, powers lub cav los ntawm converting mechanical zog rau hauv hluav taws xob thiab kuj tsub lub roj teeb. Vim li ntawd, yog tias muaj ib yam dab tsi mus rau stator lossis rotor, koj lub tsheb yuav muaj teeb meem txawm tias lub roj teeb zoo.
Txawm hais tias lub rotor muaj kev ntseeg siab, nws yog qhov ua rau tsis ua haujlwm vim nws muaj stator coils thiab xaim. Yog li ntawd, xyuas cov stator nrog ib tug zoo multimeter yog ib qho tseem ceeb kauj ruam nyob rau hauv kev daws teeb meem alternators.
Cov kauj ruam hauv qab no yuav pab koj ntsuas tus stator nrog digital multimeter.
Yuav ua li cas txheeb xyuas stator nrog multimeter?
Yog tias koj muaj teeb meem them koj lub tsheb lossis maus taus, nws yog lub sijhawm los tshem koj DMM.
Ua ntej, teeb lub DMM rau ohms. Ntxiv mus, thaum koj kov cov 'meter' xov hlau, lub vijtsam yuav tsum tso saib 0 ohms. Tom qab npaj DMM, sim lub roj teeb nrog lub ntsuas ntsuas.
Yog tias DMM nyeem ib ncig ntawm 12.6V, koj lub roj teeb zoo thiab qhov teeb meem feem ntau yog nrog stator coil lossis stator hlau. (1)
Muaj peb txoj hauv kev los ntsuas cov stator:
1. Stator static test
Kev kuaj zoo li qub raug pom zoo yog tias koj muaj teeb meem them koj lub tsheb lossis maus taus. Tsis tas li ntawd, qhov no yog qhov kev sim nkaus xwb uas koj tuaj yeem khiav thaum koj lub tsheb yuav tsis pib. Koj tuaj yeem tshem tawm cov stator ntawm lub cav tsheb lossis sim nws hauv lub cav nws tus kheej. Tab sis ua ntej kuaj xyuas qhov tseem ceeb ntawm kev tiv thaiv thiab xyuas kom luv luv hauv cov xov hlau stator, xyuas kom tseeb tias lub cev muaj zog tawm. (2)
Hauv qhov kev ntsuam xyuas static stator, cov kauj ruam hauv qab no tau ua:
(a) Tua lub cav
Txhawm rau txheeb xyuas cov stators hauv hom static, lub cav yuav tsum raug muab tua. Raws li tau hais ua ntej, yog tias lub tsheb yuav tsis pib, qhov kev xeem stator static yog tib txoj hauv kev los ntsuas cov stator.
(b) Teem lub multimeter
Teem lub multimeter rau DC. Ntxig cov hlau lead dub ntawm lub multimeter rau hauv COM jack dub, uas txhais tau tias Common. Cov hlau liab yuav nkag mus rau hauv qhov liab nrog cov cim "V" thiab "Ω". Xyuas kom tseeb tias cov xaim liab tsis txuas rau hauv Ampere connector. Nws yuav tsum tsuas yog nyob rau hauv Volts / Resistance qhov.
Tam sim no, txhawm rau ntsuas kev txuas ntxiv, tig lub pob DMM thiab teeb tsa rau lub cim beep raws li koj yuav hnov ib lub suab nrov kom paub tseeb tias txhua yam zoo nrog lub voj voog. Yog tias koj tsis tau siv lub multimeter ua ntej, thov nyeem nws cov neeg siv phau ntawv ua ntej siv nws.
(c) Khiav qhov kev xeem zoo li qub
Txhawm rau txheeb xyuas qhov txuas ntxiv, ntxig ob qhov kev sojntsuam multimeter rau hauv stator sockets. Yog tias koj hnov ib lub suab nrov, lub Circuit Court zoo.
Yog tias koj muaj peb-theem stator, koj yuav tsum tau ua qhov kev sim no peb zaug, ntxig cov khoom siv multimeter mus rau theem 1 thiab theem 2, theem 2 thiab theem 3, thiab tom qab ntawd theem 3 thiab theem 1. Yog tias lub stator zoo, koj yuav tsum hnov ib tug beep nyob rau hauv txhua rooj plaub.
Cov kauj ruam tom ntej yog xyuas kom luv luv hauv stator. Tshem ib lub xaim ntawm lub qhov (socket) stator thiab kov lub stator kauj, hauv av lossis lub tsheb chassis. Yog tias tsis muaj suab nrov, ces tsis muaj luv luv Circuit Court nyob rau hauv stator.
Tam sim no, txhawm rau txheeb xyuas qhov tseem ceeb tsis kam, teeb tsa DMM pob qhov rooj rau Ω cim. Ntxig lub multimeter coj mus rau hauv stator sockets. Kev nyeem ntawv yuav tsum nyob nruab nrab ntawm 0.2 ohms thiab 0.5 ohms. Yog tias qhov kev nyeem ntawv tawm ntawm qhov ntau los yog sib npaug rau infinity, qhov no yog qhov pom tseeb ntawm stator tsis ua haujlwm.
Peb qhia koj kom nyeem koj lub tsheb daim ntawv qhia kev pabcuam kom paub txog kev nyeem ntawv zoo.
2. Stator dynamic xeem
Qhov kev ntsuas dynamic stator yog ua ncaj qha rau ntawm lub tsheb thiab txhawb nqa multimeter hauv AC hom. Qhov no kuaj lub rotor, uas muaj cov hlau nplaum thiab rotates nyob ib ncig ntawm lub stator. Txhawm rau ua qhov kev ntsuam xyuas dynamic stator, cov kauj ruam hauv qab no tau ua:
(a) Tig lub ignition
Ua raws li cov txheej txheem tib yam li kev ntsuas zoo li qub, ntxig lub multimeter coj mus rau hauv stator sockets. Yog hais tias lub stator yog peb-theem, qhov kev ntsuam xyuas no yuav tsum tau ua peb zaug los ntawm kev ntxig cov probes rau hauv lub qhov (socket) ntawm theem 1 thiab theem 2, theem 2 thiab theem 3, theem 3 thiab theem 1. Nrog rau qhov hluav taws xob tawm, koj yuav tsum tsis txhob siv. ib qho kev nyeem ntawv thaum ua qhov kev xeem no.
(b) Ignition nrog ignition hloov
Pib lub cav thiab rov ua qhov hluav taws kub saum toj no rau txhua khub ntawm theem. Lub multimeter yuav tsum qhia kev nyeem ntawv txog 25V.
Yog tias qhov kev nyeem ntawv rau ib khub ntawm theem qis heev, hais ib ncig ntawm 4-5V, uas txhais tau hais tias muaj teeb meem nrog ib qho ntawm cov theem thiab nws yog lub sijhawm los hloov cov stator.
(c) Ua kom lub cav ceev
Kho lub cav, nce rpm mus txog 3000 thiab rov kuaj dua. Lub sijhawm no lub multimeter yuav tsum qhia tus nqi ntawm 60 V, thiab nws yuav nce ntxiv nrog rau tus lej ntawm kev hloov pauv. Yog tias qhov kev nyeem ntawv qis dua 60V, qhov teeb meem yog nrog lub rotor.
(d) Regulator rectifier xeem
Lub regulator khaws cov voltage tsim los ntawm stator hauv qab qhov kev txwv tsis pub dhau. Txuas koj lub tsheb stator mus rau tus tswj hwm thiab teeb tsa DMM los xyuas cov amps ntawm qhov ntsuas qis tshaj. Qhib lub ignition thiab tag nrho cov igniters thiab disconnect lub roj teeb tsis zoo cable.
Txuas lub DMM coj nyob rau hauv series ntawm tus ncej tsis zoo ntawm lub roj teeb thiab tus ncej tsis zoo. Yog tias tag nrho cov kev xeem dhau los tau OK, tab sis lub multimeter nyeem tsawg dua 4 amps thaum lub sij hawm qhov kev xeem no, lub regulator rectifier yog faulty.
3. Kev soj ntsuam
Static thiab dynamic yog ob txoj hauv kev los ntsuas cov stator. Tab sis, yog tias koj pom cov cim pom tseeb ntawm kev puas tsuaj rau stator, piv txwv li yog tias nws zoo li hlawv tawm, qhov no yog qhov pom tseeb ntawm tus stator phem. Thiab koj tsis xav tau ib tug multimeter rau qhov no.
Ua ntej koj mus, koj tuaj yeem tshawb xyuas lwm cov kev qhia hauv qab no. Mus txog rau peb tsab xov xwm tom ntej!
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tswv yim pom zoo
(1) Ohm - https://www.britannica.com/science/ohm
(2) lub cav tsheb - https://auto.howstuffworks.com/engine.htm
