Hloov tswj hluav taws xob hlau nrog lub stylus los ntsuas xoom xaim me ntsis faintly ci dab tsi yog qhov teeb meem
Ua ntej tshaj plaws, nws yuav tsum paub meej tias, txawm hais tias qhov hluav taws xob xaim (lub sij hawm thev naus laus zis rau theem) tsis tau raug txiav tawm, txoj kab xoom hauv qhov xwm txheej tsis raug them. Yog tias tus lej xoom raug them, kab nyob qhov twg muaj teeb meem, ces yuav ua li cas thiaj paub tias qhov teeb meem nyob qhov twg? Rau cov neeg siv hluav taws xob dav dav, sib qhia ib txoj hauv kev yooj yim thiab siv tau sai sai nrhiav thiab daws nrog:
Ua ntej, rau cov lus piav qhia txog qhov teeb meem no, vim tias txoj kab xoom yog me ntsis ci, qhov ua rau ntawm qhov tshwm sim, feem ntau yog xoom kab lap ntawm qhov tshwm sim oxidation, uas ua rau kev sib cuag tsis zoo, tab sis qhov xwm txheej no tuaj yeem txiav txim siab yog lub ntsiab kab xoom kab. tawg teeb meem, vim hais tias lub ntsiab kab xoom kab tawg lossis kev sib cuag tsis zoo, uas ua rau qhov tshwm sim tsis ua haujlwm thiab qhov tshwm sim ntawm qhov sib txawv, ntawm no yuav tsis raug tshuaj xyuas.
Thib ob, segmented tshawb nrhiav, nqaim lub peev xwm, ua ntej kos tus tswv hloov hauv qhov chaw kaw, hloov mus thiab nqis ntawm pawg lub taub hau xoom kab yog qhov qub, yog tias xoom kab yog ib txwm tsis muaj hluav taws xob, feem ntau yog qhov hloov tom qab seem ntawm qhov teeb meem. , koj tuaj yeem tshawb xyuas cov pob qij txha ntawm kab los ntawm ntu, nrhiav qhov yuam kev tom qab rewiring bandage tuaj yeem ua tau. Vim tias qhov teeb meem feem ntau yog nyob rau hauv txoj kab kev sib txuas. Qhov xwm txheej no tshwm sim feem ntau, feem ntau ntev dhau los, cov kab hluav taws xob qub, tam sim no cov kab hluav taws xob sab hauv tsev thiab kev teeb tsa yog kev tshawb fawb heev, feem ntau yuav tsis tshwm sim qhov teeb meem no.
Thib peb, yog tias koj xyuas qhov hloov pauv nce thiab nqis ntawm pawg, tsis muaj lub zog ntawm pawg lub taub hau xoom kab, hauv qab pawg lub taub hau lub zog, qhov no feem ntau yog qhov hloov pauv tsis zoo, koj tuaj yeem qhib thiab kaw qhov hloov pauv ob peb zaug, thiab qee zaum tuaj yeem rov qab mus rau lub zog ib ntus, tab sis yuav tsum tau hloov pauv raws sijhawm.
Xyuas yog tias qhov hloov ntawm pawg lub taub hau xoom kab kuj raug them, qhov xwm txheej no feem ntau tuaj yeem hu rau kev kho xov tooj xwb, vim tias tej zaum yuav muaj kev tshuaj ntsuam xyuas, tus neeg siv tsis tuaj yeem daws tau yooj yim.
Muaj ob txoj hauv kev, ua ntej, qee qhov hloov pauv ntawm phab ntsa txhawm rau tso cai rau cov neeg siv kom pom qhov hloov pauv hauv qhov tsaus ntuj kuj tuaj yeem ua tau zoo, hla kev hloov ntawm lub teeb qhia, thaum lub teeb tawm, qhov taw qhia lub teeb tseem muaj me me tam sim no. los ntawm kev hloov. Qhov thib ob, tag nrho cov teeb fluorescent, txawm tias cov raj fluorescent zoo tib yam lossis lub teeb txuag hluav taws xob, cov phosphor muaj qee lub sij hawm ncua kev ploj tuag, hu ua "afterglow". Niaj hnub no, nrog rau kev nce qib ntawm kev tshawb fawb, cov kua siv lead ua kua thiab cov khoom siv sib xyaw ua ke, nws yog ib qho yooj yim los tso saib tej yam uas tsis tshwm sim tib lub sijhawm hauv tib lub vijtsam. Piv txwv li, lub ntsuas hluav taws xob electrocardiogram (ECG) qhia txog kab uas hloov pauv thiab nqis raws li lub plawv dhia, tab sis qhov tseeb txhua qhov kev hloov pauv hauv kab no tsis yog qhov tshwm sim tib lub sijhawm, tab sis muaj sijhawm. txheej txheem. Nyob rau hauv lub dhau los, thaum tsuas muaj ib tug CRT saib, tsuas muaj ib tug taw tes uas hloov nrog lub plawv dhia, thiab nyob rau hauv thiaj li yuav tso saib ib kab, nws yog tsim nyog los siv ib tug "ntev afterglow" saib, thiaj li hais tias lub scan point tsis. tawm tam sim ntawd tom qab dhau los ntawm, tab sis theej tom qab lub sijhawm ntev dua thiab tom qab ntawd maj mam tawm mus, uas ua rau lub zog ntawm qhov taw tes rau hauv kab ntawm cov zaub. Tseem muaj oscilloscopes nyob rau lub sijhawm ntawd uas tau ua raws li tib txoj cai.
Zero kab yog lub voj voog ntawm txhua yam khoom siv hluav taws xob, vim tias muaj qee qhov kev tiv thaiv ntawm xoom kab, qhov ntau dua qhov kev tiv thaiv ntawm xoom kab lossis ntau dua qhov tam sim no ntawm xoom kab, qhov siab dua qhov sib thooj voltage saum toj no. Yog li cov kab xoom tsis yog tag nrho tsis muaj hluav taws xob, lub stylus yog me ntsis ci kuj ua tau. Tau kawg, yog tias xoom kab hluav taws xob muaj kev sib cuag tsis zoo, thiab lwm yam, yuav ua rau xoom kab hluav taws xob siab. Yog li nws yog qhov zoo dua los siv voltmeter los ntsuas qhov voltage.
Transformer tawm ntawm ib theem ntawm lub fuse yuav kuj ua rau xoom kab nrog ib tug hluav taws xob cwj mem los ntsuas lub teeb, thaum muaj ib tug lub cev muaj zog hlawv tawm nyob rau hauv txoj kab nyob deb tawm muaj ib theem ntawm lub cev muaj zog grounded yuav kuj ua rau hluav taws xob cwj mem. ntsuas qhov zero kab teeb. Zero line disconnected fais fab mov los ntawm cov khoom siv kuj yuav ntsuas qhov xoom kab nrog hluav taws xob cwj mem yog ci dua.
Nws yog qhov yooj yim heev, tsuav yog qhov xoom Circuit Court yog qhov zoo conduction, nws tsis tuaj yeem tshwm sim qhov tshwm sim no. Qhov tshwm sim no paub tseeb tias qhov xoom Circuit Court qhov chaw muaj kev tawg lossis kev ua haujlwm tsis zoo lossis txoj hlua ntawm cov khoom siv hluav taws xob. Txoj kev daws teeb meem yog txiav tawm qhov xoom Circuit Court lossis qhov tsis zoo ntawm qhov kev sib txuas, yog tias lub voj voog rau hauv ob lub cuab yeej, txiav tawm ib qho khoom siv, tsuas yog ib qho khoom siv tau khaws cia.
