Magulu a ultrasound omwe amagwiritsidwa ntchito ndi Chowona Zanyama

Zida za A-Ultrasound zimagwiritsidwa ntchito kwambiri m'mafamu a nkhumba, makamaka m'mafamu oswana, omwe angagwiritsidwe ntchito kuyeza mimba, backfat, minofu ya maso, ndi zipangizo zina zothamangitsira mbalame ndi zinyama zimagwiritsidwanso ntchito mu ultrasound.Nthawi zambiri mutha kugwiritsa ntchito zida za ultrasound, koma mwina simukudziwa zina mwazofunikira, nkhaniyi ndikuwunika kosavuta kwaukadaulo wa ultrasound womwe umagwiritsidwa ntchito m'mafamu a nkhumba.

Ultrasound
Ultrasound ndi mafunde apamwamba kwambiri, kuchuluka kwa khutu la munthu kuti amve phokoso la 20Hz mpaka 20KHz, kuposa 20KHz (kugwedezeka kwa 20 zikwi pa sekondi) phokoso la phokoso ndilopitirira kusiyana kwa kumva kwa munthu, kotero kumamveka. amatchedwa ultrasound.
Phokoso lomwe limagwiritsidwa ntchito ndi zida za ultrasound ndi lalitali kwambiri kuposa 20KHz, monga ma frequency a general electronic convex array ultrasound pregnancy scanner ndi 3.5-5MHz.
Chifukwa chomwe ultrasound idzagwiritsire ntchito kuzindikira zida makamaka chifukwa cha kuwongolera kwake, kuwunikira mwamphamvu, komanso kuthekera kwina kolowera.Chofunikira cha zida za ultrasound ndi transducer, yomwe imatembenuza ma sign amagetsi kukhala mafunde a ultrasound kuti atulutsidwe, ndipo mafunde a ultrasound omwe amawonekera kumbuyo amalandiridwa ndi transducer, omwe amasinthidwa kukhala ma siginecha amagetsi, ndipo ma sign amagetsi amasinthidwanso kuti apange zithunzi kapena zomveka.

A ultrasound

Popeza ma frequency ozungulira magalimoto ali ndi malire apamwamba, B-ultrasound ya kafukufuku wamakina idzakhala ndi malire momveka bwino.Kuti tipeze kusamvana kwakukulu, ma probe amagetsi apangidwa.M'malo mogwiritsa ntchito transducer yoyendetsedwa ndi makina kuti agwedezeke, kafukufuku wamagetsi amayika "A-ultrasound" (matochi) angapo mu mawonekedwe a convex, omwe amatchedwa array element.Zomwe zimayendetsedwa ndi chip zimathamangitsa gulu lililonse motsatana, potero zimapeza chizindikiro chofulumira kutumiza ndi kulandira ma frequency kuposa kafukufuku wamakina.

Koma nthawi zina mudzapeza kuti ma probes ena amagetsi owoneka bwino amakhala ndi mawonekedwe oyipa kuposa ma probe amakina abwino, omwe amaphatikizapo kuchuluka kwa masanjidwe, ndiko kuti, ndi magulu angati omwe amagwiritsidwa ntchito palimodzi, 16?32 mwa iwo?64 mwa iwo?128 !Zinthu zambiri zimakhala zomveka bwino.Zachidziwikire, lingaliro la nambala ya tchanelo likukhudzidwanso.

Kupitilira apo, mupeza kuti kaya ndi makina ofufuza kapena makina opangira ma convex array probe, chithunzicho ndi gawo.Chithunzi chapafupi ndi chaching'ono, ndipo chithunzi chakutali chidzatambasulidwa.Pambuyo pa kusokonezedwa kwa kutumiza ndi kulandira ma siginecha pakati pa zinthu zingapo kugonjetsedwera mwaukadaulo, zinthu zingapo zitha kulumikizidwa kukhala mzere wowongoka, ndipo kafukufuku wamagetsi amtundu wamagetsi amapangidwa.Chithunzi cha kafukufuku wamagetsi ndi kagawo kakang'ono, monga chithunzi.Chifukwa chake, mukamagwiritsa ntchito ma probes amzere kuti muyezere backfat, mawonekedwe atatu a lamellar a backfat amatha kuwonetsedwa bwino.

Mwa kupanga kafukufuku wamzere wokulirapo pang'ono, mumapeza kafukufuku wa minofu yamaso.Ikhoza kuunikira minofu yonse ya diso, ndipo ndithudi, chifukwa cha mtengo wamtengo wapatali wa zipangizo, nthawi zambiri zimagwiritsidwa ntchito pakuswana.

Kodi pali C-ultrasounds ndi D-ultrasounds?
Palibe C-ultrasounds, koma pali D-ultrasounds.D ndi ultrasounddoppler ultrasound, ndi ntchito yadoppler mfundo ya ultrasound.Tikudziwa kuti phokoso lili ndi adoppler effect, yomwe ndi pamene sitima ikudutsa patsogolo panu, phokoso limapita mofulumira kenako pang'onopang'ono.Kugwiritsadmfundo ya oppler, akhoza kukudziwitsani ngati chinachake chikusunthira kwa inu kapena kutali ndi inu.Mwachitsanzo, pogwiritsa ntchito ultrasound kuyeza kuthamanga kwa magazi, mitundu iwiri ingagwiritsidwe ntchito kuwonetsa kutuluka kwa magazi, ndipo kuya kwa mtundu kumagwiritsidwa ntchito kusonyeza kutuluka kwa magazi.Izi zimatchedwa mtundu wa ultrasound.

Mtundu wa ultrasound ndi mtundu wabodza
Pali anthu ambiri omwe amagulitsa B-ultrasound adzalengeza kuti mankhwala awo ndi mtundu wa ultrasound.Mwachionekere osati mtundu wa ultrasound (D-ultrasound) womwe tinakambirana m'ndime yapitayi.Izi zitha kutchedwa mtundu wabodza.Mfundoyi ili ngati TV yakuda ndi yoyera yokhala ndi filimu yamtundu.Mfundo iliyonse pa B-ultrasound imayimira kukula kwa chizindikiro chomwe chikuwonekera pamtunda umenewo, wowonetsedwa mu imvi, kotero kuti ndi mtundu uti womwe uli wofanana.

A-ultrasoundakhoza kufananizidwa ndi code ya mbali imodzi (bar code);B-ultrasound ingayerekezedwe ndi code-dimensional code, ndi mtundu wabodza wa B-ultrasound ndi utoto wamitundu iwiri;D-ultrasoundakhoza kufananizidwa ndi code yamagulu atatu.