CT mishonga mune zvekurapa yakave yakashandiswa zvakanyanya munharaunda dzose dzezvipatara pamusoro pehutano hwemahofisi pamwe nekugadzirirwa kwezvinhu zvakadai zvechiremba. Saka, chirwere chekurapa chinowanzosangana mumakina. Iye zvino tava kuona muchidimbu chivako chekutanga chemichina yeTCT uye chinonyanya kukosha kwekukundikana.
A, CT muchina wekutanga chimiro
Pashure pemakore ekufambira mberi, CT mhizha yakagadziridzwa yakanyatsogadziriswa, kuwedzera iyo detector mashizha, kupenya kwekukurumidza kunowedzera. Mhando dzakawanda. Asi iyo yakagadzirirwa inonyanya iyo hardware, kune zvikamu zvitatu zvikuru:
1, ine chikamu uye ine X-ray detector gantry.
2 inonyaradza nekombiyuta
3, ndeyekusimudza mubhedha wevarwere.
Chimiro nekushanda kubva pakuona kwemaonero kunogona kugoverwa mu: kutonga kwekombiyuta kuongorora nekugadzirwa kwechifananidzo chechikamu chechimiro chechimiro chechirwere chiri kuisa scan - scan frame uye pasi bed. Ita yakakwirira-X-ray generator uye X-ray tube uye kubudisa ruzivo uye chikamu chekuona deta. Maererano nezvinhu izvi zvakasikwa zvikamu zveC CT zvakakundikana kutsanangura kushandiswa kwemashoko ekutanga uye kune chikonzero.
Muchidimbu CT mhosho yakasarudzwa, zvinyorwa uye zvigadziro
CT inokonzera kukanganisa kunogona kugoverwa kuva mhando mitatu: Kutanga, nekuda kwemamiriro ezvakatipoteredza kunokonzera kukanganisa hakusi kwomuitiro. Yechipiri inokonzerwa nokushanda kusina kunaka kwechikanganiso. Chechitatu, CT inowanzokwegura, chimiro chekuita. Parameter drift inotungamirira kumagetsi kupfeka kana kukundikana.
1 kukanganisa kwezvakatipoteredza zvinhu
Sezvo mutambo weC CT chipinda, humidhi, chiyero chekuchenesa mweya, CT kugadzikana kwekugadzirisa kushandiswa kwesimba kunokonzerwa nekuchinja kwezvakatipoteredza izvo zvatinonzi kusakona. Semuenzaniso: mafambiro asina kunaka, kutonhorera kwekamuri yakanyanya kukwirira kunotungamirira kune zvimwe zvigadzirwa (zvakadai semagetsi kana kuti transformer) inopisa kana kupisa, kupisa bhodhi kukanganisa. Kukanganiswa kwemichina yekuchengetedza, maziso uye masangano akabatana anokonzera kupisa kwekushisa kwakanyanya uye zvimwe zvigadzirwa zvezvifananidzo; CT supply voltage surges inogona kuita kuti kombiyuta isashande zvakanaka, mhepo inoramba isina kugadzikana, kunyange kukamanikidzwa haisi tsika, X-ray kusagadzikana, pakupedzisira kunotungamirira kumhando yezvifananidzo, nezvimwe; kuchenesa mweya hakusi kunaka kwakasvibiswa nyore nyore kutungamirira kumakombiyuta upenyu hwakaoma hupfupika. Pane hutachiona hwehutachiona hwekutapurika kwemashoko nekuda kweguruva kuunganidza mutungamiriri; kana hunyoro hukuru kwazvo, huchaita kuti kushayikwa kwezvinhu zvigadzirwa zvemagetsi zvishomanana kukanganisa. Zvinhu zvakasikwa zvakananga kana zvisina kukonzerwa zvinokonzerwa neCCT zvinokuvadza zvikuru, uye zvinokonzera kukanganisa kusingaperi. Nokudaro, mamiriro ekushanda sezvinobvira, CT kukanganisa, upenyu hurefu hwehupenyu.
2 kukanganisa kwevanhu kunokonzerwa nokushanda kusina kunaka
Zvinokanganisa kukanganisa kwevanhu zvinhu ndezvi: kusagadzikana kwemazuva kana kupisa-gadzirisa chirongwa chekugadzirisa, zvichiita kuti kuwirirana kwechifananidzo chacho chisati chakanaka kana chakanaka, zvichiita kuti CT yekutadza kutsvaga zvikanganiso haibvumirwi kupedza mufananidzo; varwere vanopfeka chifananidzo chesimbi chakagadzirwa nezvibereko; panguva imwechete inotungamirira kune zvakasiyana siyana zvekushanda kweC CT; sarudza scanning parameters yakawedzerwa mufananidzo wezvigadziriswa nekuda kwezvisina kunaka nezvimwewo. CT kazhinji kacho kukanganisa kwevanhu hakuzotungamiri pamigumisiro inokuvadza, chero bedzi dzichinyatsoziva zvikonzero zvekugadzirisa nzira yekugadzirisa zvakare kana kubviswa kwekutanga, kazhinji inokwanisa kubudirira kupedza matambudziko.
3 · CT Hardware inokanganisa kwavo kukuru kugadzirwa kutadza
Kukosha kwevakawanda vakakura CT kunowirirana nemitemo yezvinyorwa zvinowanzoitika zvekukundikana kwekukundikana kwekufamba kwenguva yakange yakagadzirwa nemasikisi, iyo inowedzera kukwirira kwepamusoro pamwedzi mitanhatu yekutanga, mwedzi mitanhatu pashure penguva refu (5- 8 makore) munguva yekusanyarara pasi pasi makore manomwe kana masere ndokubva atanga kuwedzera zvishoma nezvishoma.
kutadza kwezvikamu zvemishini
Izvi zvinotevera kunyanya kubva pamatatu makuru makuru akaiswa;
Nehuwandu hwehupenyu hwezvigadzirwa, kushandiswa kwemajini asiwo nekuwedzera kwegore rose. Pakutanga CT inoshandiswa kutsinhanisa kuchinja kwemaitiro mumutambo wenguva yekuvharaza kukwanisa kupfupika kwekufambisa nekukurumidza-yunifomu-yakadzika kusimuka, uye yakaramba ichidzokorora, yakatungamirira kune imwe yepamusoro yekushandiswa kwema mechanical. Semuenzaniso, kasi inowanzoonekwa isingachinji, iri nyore kuita kuti fini irege kurega, kubhurwa, kugumburwa, bhanhire rakaoma zvakare rakasununguka. Uye kabheji kupfeka, kuputsika uye zvimwe kukundikana. Nhasi huwandu hweTCT huri kushandisa slip ring teknolojia, imwe nzira yekushandura yunifomu, uye imwe yemagetsi ekupedzisira inoshandisawo magnetic drive teknolojia, iyo yakaderedza kudengenyeka kwemichina yakakosha. Zvisinei, nemhaka yekushandiswa kwezvindori zvindori, zvinounzawo chimwe chikanganiso, nokuti slip ring rinokonzera kupesana ichaendesa kune nguva yakareba kusasangana kwakashata, uye inotanga kukanganisa kwekukundikana kwemagetsi uye magetsi, zvakadai sokusununguka kwekutonga, kumusoro kuvharidza, kupisa (kureka kwemberi ring), Vamwe (slip ring ring transmission) kurasikirwa kwemashoko. Saka iva nechokwadi chokuti iwe unogara uchingoridza rin'i yekugadzirisa uye kugadzirisa. Zvimwe zvikamu zvinowanzogadziriswa pakugadzirisa kushandiswa, zvakadai se-X-ray collimator mechanical chikamu chiri nyore kubuda kunze kwekutonga, yakanamatira; kukundikana kusina mushure mekuita kwenguva refu; motokari yekudzora sarudzo yemhepo inopisa inogonawo kuitika nekuda kwekupfeka kana kukuvara zvakadai sokurasikirwa kwepulse phenomena.
b · X-ray chikamu chemhosva chakagadzirwa
X-ray CT makambani ekugadzira michina inobva kune zvikamu zvinotevera: high-frequency inverter, high voltage transformers, maviri-ray tube uye kutungamirira dunhu, high voltage cable. Chimwe chechikamu chikuru che inverter chinoshandiswa kuchinjwa kuva pasi-frequency yakawedzerwa kune high-voltage transformer primary. Zvikanganiso zvakajairika ndezvi:
(1) kukundikana-ray tube pachayo: zvakadai sokufuratira anode kukundikana, kuratidzirwa senzwi guru rinotenderera. Zvakakomba kwete kushandura. Yakagadziriswa, kubudiswa kwakagadzirwa apo anode kudarika mamiriro ezvinhu; ruvara rwechimwe chikamu chekanganiso, iyo inopera. Nokuti hakuna mazairo; X-ray tube girazi yekutanga kushaya kukonzera kukonzerwa nekuguma kana kuputika, kwete kuvhara, kuvhara pasi, kupisa-kupisa moto uye nezvimwe zvakadaro.
(2) inokonzera chikamu chepamusoro-chepamusoro chekanganiso: inverter circuit failure, kuputsika, nezvimwewo, high-voltage transformer short-circuit, high voltage capacitor ignition, kuparara. Izvo zvinokundikana zvinowanzokonzera kuti fuse yakakodzana yave yakavhunika. Panguva imwechete haigone kubudiswa pachena, kana kuvepo kwekudzivirira kwekuzvidzivirira kwekukanganisa.
(3) high-voltage cable error: iyo inowanzobatanidza yakavhara, inokonzera kupisa, kupisa-voltage kana kukwirira kwemhepo, high voltage cable kutanga CT X-ray tube rotation mushure mekushandisa kwenguva yakareba, nekuda kwekusvimha nekuchema kunokonzera kupfupika kwepakati mukati -kuvhenekera tambo, izvi zvinokundikana zvinowanzoenderana nefuse inoputirwa.
c · komputa chikamu chemhosva
Kakombiyuta chikamu kukundikana kunogona kunge kwakanyanya kuduku, zviri nyore kugadzirisa, zvakadai seowanowanzo, keyboard, trackball, zvimwe zvinetso zviduku. Yakawanda ndiyo dambudziko rakaoma, tepi inotungira, kusagadzikana kwema-magneto-optical, iyo inokonzerwa nedhiyo disk uye kushandiswa kwenguva yakareba, nzvimbo yakaipa inowedzera zvishoma, zvichiita kuti kuve kwekukuvara kwose.
Unoda kuziva zvakawanda nezve CT muchina, X-ray michina inoshandisa yakakwira voltage zvedongo capacitor, ndapota shanya www.hv-caps.com
