Yuav Ua Li Cas Ntsuam Xyuas Hall Sensor nrog Multimeter (Cov Lus Qhia)

Kev poob ntawm lub zog, lub suab nrov, thiab kev xav tias lub cav kaw nyob rau hauv qee txoj kev yog cov cim qhia tias koj tab tom cuam tshuam nrog tus tswj tuag lossis cov nyhuv crank sensors hauv koj lub cav. 

Ua raws li cov kauj ruam no los ntsuas Hall effect sensor nrog lub multimeter.

Ua ntej, teem lub DMM rau DC voltage (20 volts). Txuas cov hlau lead dub ntawm lub multimeter mus rau cov hlau lead dub ntawm lub tsev sensor. Lub davhlau ya nyob twg liab yuav tsum tau txuas nrog qhov zoo liab xaim ntawm Hall sensor hlau pawg. Koj yuav tsum tau txais kev nyeem ntawv ntawm 13 volts ntawm DMM. Txuas mus xyuas cov zis ntawm lwm cov xov hlau.

Hall sensor yog ib qho transducer uas tsim tawm qhov hluav taws xob tawm hauv teb rau qhov chaw sib nqus. Hauv tsab xov xwm no, koj yuav kawm paub yuav ua li cas ntsuas Hall sensor nrog multimeter.    

Yuav ua li cas tshwm sim thaum Hall sensors poob?

Kev ua tsis tiav ntawm Hall sensors txhais tau hais tias tus tswj hwm (lub rooj tsav xwm uas muaj hwj chim thiab tswj lub cev muaj zog) tsis muaj cov ntaub ntawv tseem ceeb uas yuav tsum tau ua kom zoo synchronize lub cev muaj zog. Lub cev muaj zog yog siv los ntawm peb cov xov hlau (phase). Peb theem yuav tsum tau lub sij hawm kom raug lossis lub cev muaj zog yuav daig, poob lub zog thiab ua suab nrov.

Koj puas xav tias koj Hall sensors faulty? Koj tuaj yeem sim nrog multimeter los ntawm kev ua raws li peb kauj ruam no.

1. Tshem tawm thiab ntxuav lub sensor

Thawj kauj ruam entails tshem lub sensor los ntawm lub tog raj kheej thaiv. Ceev faj ntawm av, hlau chips thiab roj. Yog tias muaj ib qho ntawm cov no, tshem tawm lawv.

2. Camshaft sensor/crankshaft sensor qhov chaw

Tshawb xyuas lub cav schematic kom nrhiav tau lub camshaft sensor los yog crankshaft txoj hauj lwm sensor nyob rau hauv lub electronic control module (ECM) los yog camshaft sensor. Tom qab ntawd kov ib kawg ntawm lub jumper xaim mus rau lub teeb liab xaim thiab lwm qhov kawg mus rau qhov kawg ntawm qhov kev sojntsuam zoo. Kev sojntsuam tsis zoo yuav tsum kov lub chassis hauv av zoo. Xav txog kev siv tus crocodile clip jumper thaum txuas qhov kev xeem tsis zoo ua rau chassis hauv av - yog tias xav tau.

3. Kev nyeem hluav taws xob ntawm lub tshuab hluav taws xob digital

Tom qab ntawd teeb lub digital multimeter rau DC voltage (20 volts). Txuas cov hlau lead dub ntawm lub multimeter mus rau cov hlau lead dub ntawm lub tsev sensor. Lub davhlau ya nyob twg liab yuav tsum tau txuas nrog qhov zoo liab xaim ntawm Hall sensor hlau pawg. Koj yuav tsum tau txais kev nyeem ntawv ntawm 13 volts ntawm DMM.

Txuas mus xyuas cov zis ntawm lwm cov xov hlau.

Tom qab ntawd txuas cov hlau dub ntawm lub multimeter mus rau cov hlau dub ntawm cov hlua khi. Lub xov tooj liab ntawm lub multimeter yuav tsum kov cov hlau ntsuab ntawm cov xov hlau. Xyuas seb qhov voltage qhia tsib los yog ntau tshaj volts. Nco ntsoov tias qhov hluav taws xob nyob ntawm qhov nkag ntawm lub voj voog thiab yuav txawv ntawm ib lub cuab yeej mus rau lwm qhov. Txawm li cas los xij, nws yuav tsum muaj ntau tshaj li xoom volts yog tias Hall sensors OK.

Maj mam txav cov hlau nplaum ntawm lub kaum sab xis mus rau pem hauv ntej ntawm tus encoder. Tshawb xyuas dab tsi tshwm sim. Thaum koj mus ze rau lub sensor, qhov voltage yuav tsum nce. Thaum koj tsiv mus, qhov voltage yuav tsum txo. Koj lub crankshaft sensor los yog nws cov kev sib txuas yog faulty yog hais tias tsis muaj kev hloov nyob rau hauv voltage.

Summing txog

Hall sensors muaj ntau yam txiaj ntsig xws li kev xav tau ntau yam kev ntseeg siab, kev ua haujlwm siab ceev, thiab cov khoom siv hluav taws xob ua ntej thiab cov kaum sab xis. Cov neeg siv kuj nyiam nws vim nws muaj peev xwm ua haujlwm hauv ntau qhov kub thiab txias. Lawv tau siv dav hauv cov tsheb thauj mus los, cov khoom siv automation, cov cuab yeej tuav dej hiav txwv, cov tshuab ua liaj ua teb, txiav thiab rov qab tshuab, thiab ua cov tshuab ntim khoom. (1, 2, 3)

Ua tib zoo saib qee qhov ntawm peb cov lus hauv qab no.

• Yuav ua li cas kuaj lub capacitor nrog multimeter
• Yuav ua li cas xyuas lub crankshaft txoj hauj lwm sensor nrog ib tug multimeter
• Yuav ua li cas kuaj peb-xaim crankshaft sensor nrog multimeter

tswv yim pom zoo

(1) kev ntseeg siab - https://www.linkedin.com/pulse/how-achieve-reliability-maintenance-excellence-walter-pesenti

(2) qhov kub thiab txias - https://pressbooks.library.ryerson.ca/vitalsign/

tshooj/dab tsi-normal-temperature-ranges/

(3) Agricultural Machinery - https://www.britannica.com/technology/farm-machinery