Ultrasound sojntsuam / Transducer
Functions:
Ultrasonic sojntsuam kho mob yog ib qho khoom siv rau kev xa tawm thiab tau txais ultrasonic nthwv dej thaum kuaj ultrasonic. Qhov kev ua tau zoo ntawm kev sojntsuam ncaj qha cuam tshuam rau cov yam ntxwv ntawm ultrasonic thiab cuam tshuam rau kev tshawb nrhiav kev ua haujlwm ntawm ultrasonic. Kev sojntsuam siv nyob rau hauv kev kuaj ultrasonic yog lub transducer uas siv cov nyhuv piezoelectric ntawm cov khoom kom paub txog kev hloov hluav taws xob thiab lub zog suab. Cov khoom tseem ceeb ntawm kev sojntsuam yog lub wafer, uas yog ib daim ntawv siv lead ua lossis polycrystalline nrog cov nyhuv piezoelectric. Nws txoj haujlwm yog hloov hluav taws xob thiab acoustic zog rau ib leeg.
Muaj ntau hom kev kho mob ultrasonic sojntsuam. Nyob rau hauv cov nqe lus ntawm lawv txoj kev ua hauj lwm, muaj hluav taws xob scanning thiab mechanical scanning. Cov qub muaj xws li linear array, convex array thiab electronic phased array. Lub tom kawg muaj ib hom kiv cua tshuab (mechanical sector sojntsuam). Hauv kev sojntsuam kiv cua tshuab, oscillator thiab rotating scanning tau raug hloov los ntawm kev sojntsuam tig vim lawv lub suab nrov, hnav yooj yim thiab cov duab tsis zoo. Rotary kiv cua muaj qhov zoo ntawm lub suab qis, tsis muaj kev vibration, me me ntawm qhov chaw sib cuag thiab cov duab zoo. Lub tshuab hluav taws xob phased array sector sojntsuam muaj qhov zoo ntawm qhov ntim me me, lub teeb yuag, kev daws teeb meem siab, thiab tuaj yeem tso saib ob lossis ntau qhov ntawm M hom tib lub sijhawm. Qhov ze ntawm qhov pom ntawm cov hluav taws xob linear array yog qhov loj, thiab nws yog ib qho yooj yim los soj ntsuam kev sib raug zoo ntawm cov kabmob, tab sis qhov kev sojntsuam tsis yooj yim rau kev khiav lag luam, thiab xav tau qhov loj "suab qhov rais" uas tsis haum rau kev tshawb nrhiav intercostal. Cov kiv cua scan nrog convex array muaj qhov loj nyob ze ntawm lub zeem muag, qhov loj dua qhov pom kev deb, qhov sib cuag me me ntawm kev sojntsuam thiab lub cev saum npoo tshaj li cov kab array, yooj yim rau kev khiav lag luam, thiab yog tsim rau intercostal thiab pelvic scanning. Nws yog feem ntau siv hauv kev kuaj mob plab viscera.
Hauv cov voj voog kho mob, 4D duab yog hais txog lub tswv yim ntawm kev ntxiv sijhawm rau cov duab peb sab, piv txwv li cov duab stereoscopic dynamic.
Thaum 4D duab txhim kho tau siv rau stereoscopic scanning, 4D fetal ultrasound pom muaj peev xwm kuaj tau zoo rau kev hloov pauv hauv lub hlwb hauv lub hlwb thiab lwm yam fetal malformations. Tshwj xeeb, raws li xibfwb Anders Selbing txoj kev tshawb fawb, 4D cov duab tuaj yeem siv los saib xyuas cov qauv ntawm lub hlwb hauv plab tom qab pob txha taub hau nyob ze.
Cim npe nrov: ultrasound sojntsuam ultrasound transducer, Tuam Tshoj, lwm tus neeg, manufacturers, hoobkas, luv nqi
