Isigaba esijwayelekile se-ultrasound sokusetshenziswa kwezilwane

Imishini ye-A-Ultrasound ivame ukusetshenziswa emapulazini ezingulube, ikakhulukazi amapulazi okuzalanisa, angasetshenziswa ukukala ukukhulelwa, i-backfat, imisipha yamehlo, kanye nezinye izinto zokuxosha izinyoni nezilwane nazo zisetshenziswa ku-ultrasound.Ungase usebenzise imishini ye-ultrasound ngokuvamile, kodwa ungase ungazi olunye ulwazi olufanele, lesi sihloko siwukubuyekezwa okulula kobuchwepheshe be-ultrasound obusetshenziswa emapulazini ezingulube.

I-Ultrasound
I-Ultrasound iyigagasi lomsindo wemvamisa ephezulu, ububanzi bendlebe yomuntu ukuzwa igagasi lomsindo lingu-20Hz ukuya ku-20KHz, ngaphezu kuka-20KHz (ukudlidliza izikhathi eziyizinkulungwane ezingu-20 ngomzuzwana) igagasi lomsindo lingaphezu kobubanzi bokungezwa komuntu, ngakho-ke ibizwa nge-ultrasound.
Igagasi lomsindo elisetshenziswa imishini ye-ultrasound evamile liphakeme kakhulu kuno-20KHz, njengemvamisa yesithwebuli sokukhulelwa se-convex ye-electronic esivamile ngu-3.5-5MHz.
Isizathu sokuthi kungani kuzosetshenziswa i-ultrasound ukuze kutholwe imishini ngokuyinhloko kungenxa yokuqondisa kwayo okuhle, ukucabanga okuqinile, nekhono elithile lokungena.Ingqikithi yemishini ye-ultrasound iyi-transducer, eguqula amasignali kagesi abe amaza e-ultrasound ukuze akhishwe, futhi amaza e-ultrasound aboniswa emuva atholwa i-transducer, eguqulwa ibe amasignali kagesi, futhi amasignali kagesi aphinde acutshungulwe ukuze enze izithombe noma imisindo.

I-ultrasound

Njengoba i-motor rotation frequency inomkhawulo ophezulu, i-B-ultrasound ye-probe yemishini izoba nomkhawulo ekucaciseni.Ukuze kutholwe ukulungiswa okuphezulu, ama-electronic probes athuthukisiwe.Esikhundleni sokusebenzisa i-transducer eshayelwa ngomshini ukushwiba, uphenyo lwe-elekthronikhi lubeka inombolo ethi "A-ultrasound" (ama-flashlights) endaweni eyi-convex, ngayinye ebizwa ngokuthi i-array element.I-current elawulwa yi-chip isika uhlu ngalunye ngokushintshana, ngaleyo ndlela ithola ukuthumela nokwamukela isignali esheshayo kune-probe yomshini.

Kodwa ngezinye izikhathi uzothola ukuthi amanye ama-array e-electronic convex array anekhwalithi yokucabanga embi kakhulu kunemishini emihle yokuphenya, ehlanganisa inani lezinhlawulo, okungukuthi, mangaki ama-array asetshenziswa ndawonye, ​​​​16?32 wabo?64 wabo?128?Izakhi ezengeziwe, isithombe siyacaca.Yebo, umqondo wenombolo yesiteshi nawo uyabandakanyeka.

Ngaphezu kwalokho, uzothola ukuthi noma ngabe i-mechanical probe noma i-electronic convex array probe, isithombe siwumkhakha.Isithombe esiseduze sincane, futhi isithombe esikude sizokwelulwa.Ngemva kokuphazanyiswa kokudlulisa nokwamukela amasignali phakathi kwezakhi zohlelo kunqotshwe ngobuchwepheshe, izakhi zohlelo zingahlelwa zibe umugqa oqondile, bese kwakhiwa i-electronic linear probe.Isithombe se-electronic array probe iyisikwele esincane, njengesithombe.Ngakho-ke, uma usebenzisa ama-linear array probes ukukala i-backfat, ukwakheka kwe-lamellar enezingqimba ezintathu ze-backfat kungavezwa ngokuphelele.

Ngokwenza i-probe yomugqa ibe mkhulu kancane, uthola uphenyo lwemisipha yeso.Ingakwazi ukukhanyisa wonke umsipha wamehlo, futhi-ke, ngenxa yentengo ephakeme kakhulu yezinto zokusebenza, ngokuvamile isetshenziselwa ukuzalanisa.

Ingabe akhona ama-C-ultrasounds nama-D-ultrasounds?
Awekho ama-C-ultrasounds, kodwa kukhona ama-D-ultrasounds.D i-ultrasounddoppler ultrasound, kuyinto isicelodIsimiso se-oppler se-ultrasound.Siyazi ukuthi umsindo has adumphumela we-oppler, okuwukuthi lapho isitimela sidlula phambi kwakho, umsindo uhamba ngokushesha bese uhamba kancane.UkusebenzisadIsimiso sika-oppler, angakwazisa ukuthi kukhona okuya ngakuwe noma kude nawe.Isibonelo, uma usebenzisa i-ultrasound ukukala ukugeleza kwegazi, imibala emibili ingasetshenziswa ukumaka ukugeleza kwegazi, futhi ukujula kombala kusetshenziswa ukukhombisa ukugeleza kwegazi.Lokhu kubizwa nge-color ultrasound.

Faka umbala we-ultrasound nombala ongamanga
Kukhona abantu abaningi abathengisa i-B-ultrasound bazokhangisa ukuthi imikhiqizo yabo i-color ultrasound.Ngokusobala akuyona i-ultrasound yombala (i-D-ultrasound) esikhulume ngayo esigabeni esidlule.Lokhu kungabizwa kuphela ngombala womgunyathi.Umgomo ufana ne-TV emnyama nemhlophe enongqimba lwefilimu yombala.Iphuzu ngalinye ku-B-ultrasound limelela ukushuba kwesignali ebonisiwe kulelo banga, elivezwe ngesilinganiso esimpunga, ngakho-ke yimuphi umbala ofana ngokuyisisekelo.

A-i-ultrasoundingaqhathaniswa nekhodi enohlangothi olulodwa (ibhakhodi);I-B-ultrasound ingafaniswa nekhodi enezinhlangothi ezimbili, ngombala wamanga we-B-ultrasound ipendwe ikhodi enezinhlangothi ezimbili;D-i-ultrasoundingafaniswa nekhodi enezinhlangothi ezintathu.