Thaum siv tus cwj mem xeem los ntsuas qhov hloov pauv tswj cov hlau nyob, vim li cas xoom kab teeb me ntsis?
Ua ntej, nws yuav tsum tau qhia meej tias txawm hais tias tsis hais seb cov xaim nyob (kev tshaj lij hu ua theem xaim) raug txiav los yog tsis, cov xaim nruab nrab tsis nquag them. Yog tias cov kab nruab nrab raug them, nws qhia tau hais tias muaj teeb meem hauv qee qhov ntawm kab. Yog li cas peb tuaj yeem txheeb xyuas qhov teeb meem nyob qhov twg? Rau cov neeg siv khoom siv hluav taws xob zoo tib yam, qhia qee qhov yooj yim thiab siv tau nrawm tshawb nrhiav thiab ua cov txheej txheem:
1, Hais txog qhov teeb meem no piav qhia, vim li cas rau qhov tshwm sim no feem ntau yog vim oxidation ntawm qhov sib tshooj ntawm xoom xaim, ua rau kev sib cuag tsis zoo. Txawm li cas los xij, qhov xwm txheej no tuaj yeem txiav txim siab raws li qhov teeb meem ntawm txoj kab tseem ceeb xoom xaim tawg, vim qhov tshwm sim txhaum thiab qhov tshwm sim los ntawm cov kab tseem ceeb xoom xaim tawg lossis kev sib cuag tsis zoo sib txawv. Peb yuav tsis soj ntsuam nws ntawm no.
2, Ib kauj ruam los ntawm kev tshawb nrhiav thiab nqaim qhov ntau. Ua ntej, xyuas seb qhov xoom kab nyob rau sab sauv thiab sab hauv lub taub hau ntawm qhov hloov yog qhov qub thaum lub ntsiab hloov nyob rau hauv qhov chaw kaw. Yog tias txoj kab xoom yog qhov qub thiab tsis muaj hluav taws xob, nws feem ntau yog teeb meem nyob rau sab nraub qaum ntawm qhov hloov. Koj tuaj yeem tshawb xyuas cov pob qij txha ntawm cov kab hluav taws xob los ntawm ntu, nrhiav qhov yuam kev, thiab tom qab ntawd rov ua dua thiab qhwv nws. Vim tias qhov teeb meem feem ntau tshwm sim ntawm txoj kab txuas. Qhov tshwm sim feem ntau ntawm qhov xwm txheej no feem ntau yog cov kab hluav taws xob qub thiab qub dhau los ntawm lub sijhawm ntev dhau los. Niaj hnub no, kev sib txuas hauv tsev thiab kev teeb tsa yog kev tshawb fawb heev, thiab qhov teeb meem no feem ntau tsis tshwm sim.
3, Yog tias tsis muaj lub zog ntawm lub xoom kab nyob rau sab saum toj ntawm qhov hloov pauv thaum kuaj cov kab nce thiab nqis, thiab muaj lub zog ntawm pawg hauv qab, qhov xwm txheej no feem ntau yog vim qhov hloov pauv tau tawg. Koj tuaj yeem qhib thiab kaw qhov hloov pauv ob peb zaug, thiab qee zaum nws tuaj yeem rov ua lub zog ib ntus, tab sis nws tseem tsim nyog los hloov qhov hloov pauv raws sijhawm.
Yog tias txoj kab xoom ntawm lub taub hau hloov pauv tseem nyob thaum kuaj xyuas, qhov xwm txheej no feem ntau tsuas yog qhia los ntawm kev hu xov tooj rau kev kho, vim tias tej zaum yuav muaj kev tshuaj xyuas ncej nce toj, uas cov neeg siv tsis tuaj yeem daws tau yooj yim.
Muaj ob txoj hauv kev. Ua ntej, qee qhov hloov pauv phab ntsa muaj qhov taw qhia lub teeb txuas nrog thoob plaws qhov hloov pauv kom cov neeg siv yooj yim pom qhov hloov pauv hauv qhov tsaus ntuj. Thaum lub tshuab hluav taws xob raug kaw, tseem muaj qhov me me tam sim no ntws los ntawm qhov taw qhia lub teeb. Qhov thib ob, txhua lub teeb fluorescent, txawm tias cov raj fluorescent zoo tib yam lossis lub teeb txuag hluav taws xob, muaj qee yam kev ncua sij hawm ploj ntawm lawv cov hmoov fluorescent, hu ua "afterglow". Tam sim no hais tias kev tshawb fawb tau nce siab, nrog cov lus qhia LCD thiab cov khoom siv sib txuam, nws yog ib qho yooj yim los tso saib cov xwm txheej tsis sib luag ntawm tib lub vijtsam. Piv txwv li, lub ntsuas hluav taws xob electrocardiogram qhia txog kab kab rov tav uas hloov pauv nce thiab nqis nrog lub plawv dhia. Txawm li cas los xij, qhov tseeb, txhua qhov kev hloov pauv ntawm kab kab rov tav no tsis tshwm sim tib lub sijhawm, tab sis muaj cov txheej txheem sijhawm. Yav dhau los, nyob rau hauv lub era ntawm tsuas yog CRT qhia, tsuas muaj ib tug taw tes uas hloov nrog lub plawv dhia. Yuav kom tso saib ib kab, yuav tsum tau siv "ntev afterglow" zaub, yog li ntawd lub scanning point tsis tam sim ntawd tawm mus tom qab dhau mus, tab sis maj mam tawm tom qab ib tug ntev lub sij hawm ntawm lub sij hawm, ua rau lub zog ntawm ib tug point. ib qho kev nthuav qhia ntawm kab. Lub oscilloscope lub sijhawm ntawd kuj muaj tib lub ntsiab cai.
Lub xoom kab yog lub voj voog ntawm txhua yam khoom siv hluav taws xob. Vim tias muaj qee qhov kev tiv thaiv nyob rau hauv xoom kab, qhov siab dua qhov tsis kam lossis tam sim no ntawm xoom kab, qhov siab dua qhov sib thooj ntawm nws. Yog li cov kab xoom tsis yog tag nrho tsis muaj qhov hluav taws xob, thiab nws kuj tseem ua tau rau lub ntsuas mem kom ci me ntsis. Tau kawg, yog tias muaj kev sib cuag tsis zoo nyob rau hauv xoom kab Circuit Court, nws yuav ua rau xoom kab voltage siab dua. Yog li nws yog qhov zoo tshaj los ntsuas qhov voltage nrog lub voltmeter.
Lub fuse tawg nyob rau hauv ib theem ntawm lub transformer kuj tuaj yeem ua rau xoom kab kom pom me ntsis thaum ntsuas nrog lub cwj mem hluav taws xob. Thaum lub cev muaj zog raug hlawv tawm thiab ib theem yog grounded nyob deb ntawm txoj kab, nws kuj tuaj yeem ua rau xoom kab teeb me ntsis thaum ntsuas nrog lub cwj mem hluav taws xob. Thaum cov khoom siv hluav taws xob raug txiav tawm ntawm xoom kab, nws kuj tuaj yeem ntsuas los ntawm cov khoom siv hluav taws xob uas cov xoom kab muaj lub cwj mem hluav taws xob uas ci ntsa iab.
Nws yog qhov yooj yim heev, tsuav yog qhov xoom kab hluav taws xob ua tau zoo, qhov tshwm sim tsis tuaj yeem tshwm sim. Yog tias qhov tshwm sim no tshwm sim, nws yog qhov tseeb tias muaj kev cuam tshuam lossis kev ua haujlwm tsis zoo nyob rau hauv qee qhov ntawm xoom kab hluav taws xob, lossis cov khoom siv hluav taws xob txuas nrog hauv series. Txoj kev daws teeb meem yog kom tshem tawm cov xoom kab hluav taws xob los yog ruaj khov txuas nrog cov khoom tsis zoo. Yog tias ob lub tshuab hluav taws xob txuas nrog hauv ib lub voj voog, txiav tawm ib qho khoom siv hluav taws xob thiab tsuas yog khaws ib qho xwb.
