Nws feem ntau pom tau tias ntau tus neeg pib tshiab yog tossing ntawm qhov kev tawm tsam thaum kho lub voj voog, thiab nws yog dismantled thiab welded. Qhov tseeb, nws tau raug kho ntau heev. Tsuav koj nkag siab txog cov yam ntxwv ntawm kev puas tsuaj, koj tsis tas yuav siv sijhawm ntau.
Kev ua haujlwm tsis zoo yog qhov feem ntau ntawm cov khoom siv hluav taws xob, tab sis nws tsis yog cov khoom uas muaj kev puas tsuaj ntau tshaj plaws. Qhib Circuit Court yog hom kev puas tsuaj feem ntau. Nws yog qhov tsawg uas tus nqi kuj yuav loj dua, thiab tus nqi kuj yuav me dua. Feem ntau muaj xws li carbon film resistors, hlau zaj duab xis resistors, hlau qhov txhab resistors thiab pov hwm resistors.
Thawj ob hom resistors yog siv dav tshaj plaws. Ib qho ntawm cov yam ntxwv ntawm lawv qhov kev puas tsuaj yog tias qhov kev puas tsuaj ntawm qhov tsis zoo (hauv qab 100Ω) thiab kev ua haujlwm siab (siab tshaj 100kΩ) yog siab, thiab tus nqi nruab nrab tsis kam (xws li ntau pua ohms mus rau kaum ntawm kiloohms) Kev puas tsuaj tsawg heev; Qhov thib ob, thaum cov resistors tsis tshua muaj kev puas tsuaj, lawv feem ntau hlawv thiab blackened, uas yog yooj yim mus nrhiav tau, thaum high-resistance resistors tsis tshua muaj puas.
Wirewound resistors feem ntau yog siv rau siab tam sim no limiting, thiab cov kuj tsis loj. Thaum cylindrical hlau qhov txhab resistors hlawv tawm, ib txhia yuav tig dub los yog saum npoo yuav tawg los yog tawg, thiab ib txhia yuav tsis muaj ib tug. Cement resistors yog ib hom hlau qhov txhab tiv thaiv, uas tuaj yeem tawg thaum hlawv tawm, txwv tsis pub yuav tsis muaj qhov pom. Thaum lub fuse resistor kub hnyiab tawm, ib daim tawv nqaij yuav tawg tawm ntawm qee qhov chaw, thiab qee qhov tsis muaj kab, tab sis lawv yuav tsis hlawv lossis tig dub. Raws li cov yam ntxwv saum toj no, koj tuaj yeem tsom mus rau kev kuaj xyuas qhov tsis kam thiab sai sai nrhiav qhov kev puas tsuaj.
Raws li cov yam ntxwv tau teev tseg saum toj no, peb tuaj yeem ua ntej saib seb cov resistors qis ntawm lub rooj tsavxwm tau hlawv cov cim dub, thiab tom qab ntawd raws li cov yam ntxwv uas feem ntau ntawm cov resistors qhib los yog qhov tsis kam yuav loj dua thiab cov resistors siab. yooj yim puas. Peb tuaj yeem siv multimeter ncaj qha ntsuas qhov tsis kam ntawm ob qho kawg ntawm qhov siab-resistor ntawm lub rooj tsav xwm Circuit Court. Yog hais tias qhov ntsuas tsis kam yog siab dua qhov nominal tsis kam, qhov kev tiv thaiv yuav tsum raug puas tsuaj (nco ntsoov tias qhov kev tiv thaiv yog qhov ruaj khov ua ntej cov zaub hauv qhov xaus, vim tias tej zaum yuav muaj cov khoom sib luag hauv Circuit Court, muaj cov nqi thiab cov txheej txheem tawm), yog qhov ntsuas tsis kam yog me dua qhov nominal tsis kam, nws feem ntau tsis quav ntsej. Nyob rau hauv txoj kev no, txhua qhov kev tawm tsam ntawm lub rooj tsav xwm hluav taws xob tau ntsuas dua, thiab txawm tias ib txhiab yog "tua tsis raug", ib tus yuav tsis nco.