Lub tshuab pa taws (roj teeb) yog lub tshuab tsim hluav taws xob, uas yog ib qho tseem ceeb ntawm cov txheej txheem tiv thaiv ntawm lub cav tsheb. Cov kab xev hloov txoj hlua hluav taws xob tsawg hauv qhov hloov hluav taws xob los ntawm qhov hloov mus rau hauv txoj hlua hluav taws xob ntau.
Tsim nyog
- - ciaj ntswj nrog lub qhov "10";
- - ohmmeter.
Cov Lus Qhia
Kauj ruam 1
Ua ntej tshaj plaws, kuaj xyuas cov yas npog ntawm lub qhov hluav taws xob txuas rau cov khoom siv kho tshuab kev puas tsuaj, kab nrib pleb, av, roj to thiab cuam tshuam dhau. Yog tias koj pom ib yam dab tsi, kauj yuav tsum tau hloov.
Kauj ruam 2
Koj tuaj yeem kuaj lub kauj roj (bobbin) tsis tas tshem tawm ntawm lub tsheb, tab sis txawm li cas los xij, ntawm kev tawm tswv yim ntawm cov kws tsav tsheb, cov kws kho tsheb, nws zoo dua rau tshem nws, kom yooj yim, ntawm koj lub tsheb. Txhawm rau tshem tawm, coj lub khawm qhov (socket) ntawm "10".
Kauj ruam 3
Txij li thaum ib lub bobbin muaj qhov sib txuas, theem pib winding thiab kab hluav taws xob txuas, nws yog thawj qhov tsim nyog los xyuas qhov tsis kam ntawm thawj kev sib tw ntawm cov hluav taws xob ntawm qhov hluav taws xob tiv thaiv, uas tau txais qhov cuam tshuam tsawg ntawm cov hluav taws xob tam sim no. Txhawm rau ua qhov no, koj yuav tsum tau txuas ib qho ntawm ohmmeter mus rau qhov chaw qis hluav taws xob ntawm koj lub bobbin. Nco ntsoov tias qhov tsis kam ntawm 25 ° C yuav tsum yog (0.42 ± 0.05) ohms rau cov pa roj teeb 8352.12 thiab (0.43 ± 0.04) ohms rau cov pa roj teeb hluav taws xob 3122.3705. Yog tias nws txawv ntawm tus qauv tus nqi, ces nws yuav tsum tau hloov.
Kauj ruam 4
Tom ntej no, koj yuav tsum tau kuaj xyuas qhov tsis kam ntawm qhov txuas ntawm lub tshuab hluav taws xob theem ob ntawm lub tshuab hluav taws xob (bobbin), uas qhov hluav taws xob muaj qhov siab. Txhawm rau ua qhov no, txuas lub ohmmeter rau lub dav hluav taws xob lub dav hlau "B" ntawm bobbin thiab rau lub siab-davhlau ya nyob twg. Tab sis tsis txhob hnov qab tias qhov tawm tsam ntawm qhov kub txog 25 ° C yuav tsum yog (5, 00 ± 1, 00) kOhm rau cov pa roj taws 8352.12 thiab (4, 08 ± 0, 40) kOhm rau lub kauj tiv hluav taws xob 3122.3705. Yog tias nws txawv ntawm tus qauv tus nqi, ces nws yuav tsum tau hloov. Tseem ceeb tshaj plaws, nco ntsoov tshem tawm cov txuas hluav taws xob los ntawm lub roj hluav taws xob.
Kauj ruam 5
Thiab thaum kawg, koj yuav tsum xyuas lub rwb thaiv tsev tiv thaiv "av". Thiab rau qhov no koj xav tau txuas ib qho ntawm ohmmeter rau lub cev ntawm lub bobbin thiab hloov pauv rau txhua qhov ntawm nws cov terminals. Yog tias qhov kam tiv taus ntawm cov pa roj carbon monoxide qis dua li ntawm 50 megohms, qhov no txhais tau hais tias nws puas ruaj khov thiab ib qho tshiab yuav tsum muab nruab.
