Ultrasonic Phased Array Technology taw qhia

Muaj pes tsawg leej hauv daim ntaub ntawv kho mob ntawm ultrasonic ntsuam xyuas, uas loj suab tsis yog siv los ua kom ntxaws mas cross-sectional duab ntawm nruab paub. Sonograms kho mob no feem ntau yog ua los nrog tshwj tej caij transducers hu ua phased arrays thiab lawv cas cuab yeej hardware thiab software. Tiam sis txoj kev siv tshuab ultrasonic phased array tsis tag mus kho mob. Xyoo tsis ntev los no, phased array tshuab tau pom mus ua siv nyob rau hauv tej chaw muaj ntawv tshiab ntxiv rau cov lus qhia thiab sim ultrasonic visualization uas muaj xws li xyuas weld, soj ntsuam, thickness profiling, thiab in-service speed nrhiav kom tau nyiaj. Daim ntawv no yog qhia txog ib nyuag qhia li cas phased array tshuab ua hauj lwm thiab seb lawv yuav ua haujlwm muaj ultrasonic nondestructive los soj ntsuam.

Lub phased array lawv yog dab tsi?

Pa ultrasonic transducers rau NDT feem ntau muaj xws li ywg ib tib lub caij uas cov generates thiab tau txais nyiaj tsis suab loj, los yog ob tug paired hais, ib rau kis thiab ib tug kom tau txais cov nyiaj. Probes phased array, ntawm qhov tod tes, mas muaj xws li ib tug transducer los ua ke nrog ntawm 16 mus li 256 me neeg uas nthuav tau neb yuav pulsed nyias. Cov no yuav tau txheej txheem ntawm ib sawb (tawm array), ib ntiv nplhaib tawm (annular array), vas matrix (yeej array), los yog ib tug zoo lawm ntau. Qho rooj plaub uas muaj pa transducers, phased array probes yuav tau tsim kom ncaj cuag siv, ua ib feem ntawm ib lub raj nplaim teeb los ua ke nrog ib nplais, los yog siv immersion nrog suab coupling mus txog tus dej kev. Transducer frequencies yog feem ntau nyob rau hauv ntau ntawm 2 MHz mus rau 10 MHz. Lub phased array lawv yuav kuj yog ib tug sophisticated lub computer kuas ntsuas uas muaj cuab kav rau tsav, lub caij tej sojntsuam, tau thiab digitizing tus returning echoes, thiab plotting uas ncha lus qhia ntau yam txheem tawm tswv yim. Tsis zoo li qhov khuam pa detectors, phased array tshuab yuav cheb ib nqaj hauv ib chav ntawm lub ces kaum refracted losis ib txog kev tawm suab, los yog dynamically siab ntawm ib tug xov tooj ntawm depths sib txawv, li no ua yooj thiab muaj peev xwm ua rau kev tshawb setups.