DC system high-voltage generators tuaj yeem muab faib ua peb pawg raws li inverter zaus: lub zog siv hluav taws xob high-voltage generators, nruab nrab zaus high-voltage generators, thiab high-frequency high-voltage generators. Tam sim no cia peb paub cov tub ntxhais kawm ua ke zoo dua.
1. Fais fab zaus high-voltage generator. Lub sij hawm ua hauj lwm thiab zaus ntawm lub hwj chim zaus high-voltage generator yog 50Hz / 60Hz, thiab cov zis muaj tsis zoo linearity. Txhawm rau tsim cov X-rays txaus uas cuam tshuam rau kev nkag mus thiab ntau npaum li cas rau kev yees duab Suav, nws qhov ntim feem ntau yog qhov loj thiab hnyav. Nyob rau tib lub sijhawm, nws kuj yog vim tias lub tuam txhab koom nrog qhov tsis tshua muaj zaus waveform, nrog kev hloov pauv siab ntawm Kv thiab lub sijhawm ua haujlwm ntev, uas ua rau nws nyuaj rau kev lag luam los tswj cov koob tshuaj sib txawv (qhov luv tshaj plaws yog 3ms), thiab tuaj yeem tsim tau qee yam. koob tshuaj tsawg thiab tsis muaj txiaj ntsig X-ray rau ntau tus menyuam kawm ntawv.
2. Intermediate zaus high-voltage generator. Los ntawm kev siv high-frequency waveform ntawm 400Hz-20kHz, cov zis linearity tau zoo lawm, daws tau cov teeb meem ntawm loj ntim, hnyav hnyav, thiab tsawg npaum li cas ntawm lub hwj chim zaus high-voltage generator. Nws tuaj yeem ua tau raws li qhov xav tau ntawm peb cov kev yees duab X-ray, tab sis nrog kev txhim kho ntawm inverter thev naus laus zis, tseem muaj ntau chav rau kev txhim kho.
3. Kev siv ntau zaus ntawm lub tshuab hluav taws xob ib puag ncig. Lub inverter zaus ntawm high-frequency high-voltage generator yog ntau tshaj 20kHz. Raws li lub inverter zaus nce, Kv cov zis ntawm lub tshuab hluav taws xob high-voltage nyhav yog ib txoj kab ncaj nraim, thiab nws qhov kev hloov pauv Kv muaj qhov cuam tshuam tsawg. Feem ntau, peb tuaj yeem tso saib cov ntaub ntawv hauv waveform raws li txoj kab ncaj nraim, thiab lub voj voog tsim waveform yog luv heev. Lub sijhawm ua haujlwm luv tshaj plaws uas tuaj yeem tswj tau yog 1ms, uas yog qis dua li 3ms ntawm lub tshuab hluav taws xob hluav taws xob high-voltage. Vim nws qhov loj me thiab lub teeb yuag, cov tawv nqaij tsis tshua muaj, cov duab thaij duab zoo tshaj plaws, cov khoom siv loj loj, kev tswj hwm lub sijhawm thiab kev tswj hwm, thiab kev tswj hwm tus nqi luv luv, tam sim no yog qhov kev xaiv rau cov tshuab hluav taws xob hauv Suav teb. Feem ntau, cov tuam txhab ntseeg hais tias qhov zaus inverter ntawm lub tshuab hluav taws xob high-voltage yog qhov siab tshaj 40kHz, uas txhais tau tias nws tau tsim ib qho tseem ceeb thiab qhov tseeb heev. Txawm hais tias qhov siab npaum li cas ntawm kHz, qhov kev pab cuam tiag tiag rau kev txhim kho cov khoom siv hluav taws xob high-voltage yog me me.
Vim muaj qee yam txaus ntshai ntawm DC high-voltage generators thaum kuaj, tshwj xeeb yog them rau qhov kev tiv thaiv tsis siv neeg ua haujlwm ntawm cov khoom hauv kev tsim cov thev naus laus zis. Nws muaj kev tiv thaiv kev ua haujlwm xws li overvoltage, overcurrent, xoom rov qab, kev tiv thaiv hauv av, thiab kev tiv thaiv tshwj xeeb. Thaum ua haujlwm txawv txav tshwm sim, cov cuab yeej tiv thaiv tsis siv neeg yuav pib, nres cov txheej txheem boosting ntawm DC high-voltage generator thiab txo nws mus rau xoom lub xeev. Cov khoom no muaj zog tsis siv neeg tiv thaiv muaj nuj nqi, ua tiav thiab txhim khu kev qha kev tiv thaiv mechanism, thiab tag nrho cov kev qhia yog superior rau cov qauv kev lag luam, ua rau nws muaj kev nyab xeeb thiab yooj yim rau siv.