Bincike da ci gaban jagorancin fasahar gano ultrasonic

Duban dan tayi kanta nazarin fasaha

1. Laser duban dan tayi fasahar ganowa

Fasahar gano Laser ultrasonic shine a yi amfani da Laser pulsed don samar da bugun jini na ultrasonic don gano kayan aiki. Laser na iya tayar da raƙuman ruwa na ultrasonic ta hanyar samar da sakamako na roba na thermal ko amfani da kayan tsaka-tsaki. Abubuwan da ake amfani da su na duban dan tayi na laser sun fi nunawa a cikin bangarori uku:

(1) Zai iya zama gano nesa mai nisa, duban dan tayi na laser na iya zama yaduwa mai nisa, raguwa a cikin tsarin yaduwa yana da ƙananan;

(2) lamba ba kai tsaye ba, ba sa buƙatar lamba kai tsaye ko kusa da kayan aikin, amincin ganowa yana da girma;

(3) Babban ƙudurin ganowa.

Dangane da fa'idodin da ke sama, ganowar ultrasonic Laser ya dace musamman don gano ainihin-lokaci da gano kan-layi na kayan aikin a cikin yanayi mai tsauri, kuma ana nuna sakamakon ganowa ta hanyar saurin daukar hoto na ultrasonic.

Duk da haka, Laser duban dan tayi kuma yana da wasu rashin amfani, irin su ultrasonic ganowa tare da babban ƙuduri amma in mun gwada da rashin hankali. Saboda tsarin ganowa ya ƙunshi tsarin laser da ultrasonic, cikakken tsarin gano ultrasonic Laser yana da girma a cikin girma, hadaddun tsari da tsada.

A halin yanzu, fasahar duban dan tayi na Laser yana haɓaka ta hanyoyi biyu:

(1) Bincike na ilimi game da tsarin motsa jiki na laser ultrafast da kuma hulɗar da ƙananan halayen laser da ƙananan ƙwayoyin cuta;

(2) Saka idanu akan layi a cikin masana'antu.

2.Fasahar ganowa ta Electromagnetic ultrasonic

Electromagnetic ultrasonic wave (EMAT) shine amfani da hanyar shigar da lantarki don tadawa da karɓar raƙuman ruwa na ultrasonic. Idan babban mitar wutar lantarki ya zagaya cikin wani nada kusa da saman karfen da aka auna, za a sami mitar mitar da aka auna a karfen da aka auna. Idan ana amfani da filin maganadisu akai-akai a waje da ƙarfe da aka auna, abin da aka jawo zai haifar da ƙarfin Lorentz na mitar iri ɗaya, wanda ke aiki akan ma'aunin ƙarfe da aka auna don haifar da girgiza lokaci-lokaci na tsarin crystal na ƙarfe da aka auna, don tada raƙuman ruwa na ultrasonic. .

Electromagnetic ultrasonic transducer ya ƙunshi babban-frequencycoil, filin maganadisu na waje da madubin aunawa. Lokacin gwada workpiece, waɗannan sassa uku suna shiga tare don kammala canjin ainihin fasaha na duban dan tayi tsakanin wutar lantarki, maganadisu da sauti. Ta hanyar gyare-gyaren tsarin coil da matsayi na matsayi, ko gyare-gyaren ma'auni na jiki na maɗaukaki mai girma, Don canza yanayin ƙarfin da aka gwada, don haka samar da nau'in duban dan tayi.

3.Fasahar gano duban dan tayi mai hade da iska

Fasahar gano iska mai haɗe-haɗe da fasahar ganowa sabuwar hanyar gwaji mara lahani ta ultrasonic mara lahani tare da iska a matsayin matsakaicin hada biyu. Fa'idodin wannan hanyar ba su da alaƙa, ba masu cin zarafi ba, kuma gaba ɗaya mara lalacewa, guje wa wasu lahani na gano duban dan tayi na gargajiya. A cikin 'yan shekarun nan, an yi amfani da fasahar gano ultrasonic iska mai hade da iska a cikin gano lahani na kayan hade, kimanta aikin kayan aiki, da ganowa ta atomatik.

A halin yanzu, da bincike na wannan fasaha yafi mayar da hankali a kan halaye da kuma ka'idar iska hada guda biyu excitation ultrasonic filin, da kuma bincike na high dace da low amo iska hada guda biyu bincike. Ana amfani da software na simintin filin wasa da yawa na COMSOL don yin ƙira da kwatankwacin filin ultrasonic mai haɗa iska, don yin nazarin lahani na ƙima, ƙididdigewa da ƙima a cikin ayyukan da aka bincika, wanda ke haɓaka haɓakar ganowa kuma yana ba da bincike mai fa'ida don aikace-aikacen aikace-aikace. na mara lamba duban dan tayi.

Nazari akan fasahar taimakon duban dan tayi

Binciken fasaha na taimakon duban dan tayi ya fi mayar da hankali ne akan rashin canza hanyar duban dan tayi da ka'ida, bisa ga yin amfani da wasu fannonin fasaha (kamar sayan bayanai da fasahar sarrafawa, fasahar samar da hoto, fasahar fasaha ta wucin gadi, da dai sauransu). , Fasahar matakan ganowa na ultrasonic (sayan sigina, siginar siginar da sarrafa siginar, ƙirar lahani) ingantawa, don samun ƙarin ingantaccen sakamakon ganowa.

1.Nfasahar sadarwar zamaniilimin kimiyya

Cibiyar sadarwa ta Neural (NNs) ƙirar lissafi ce ta algorithm wacce ke kwaikwayon halayen halayen NNs na dabba kuma yana aiwatar da sarrafa bayanai masu daidaitawa. Cibiyar sadarwa ta dogara ne akan rikitarwa na tsarin kuma ta cimma manufar sarrafa bayanai ta hanyar daidaita haɗin kai tsakanin adadi mai yawa na nodes.

2.3D dabarar hoto

A matsayin muhimmin jagorancin ci gaba na ci gaban fasaha na fasaha na ganowa na ultrasonic, fasahar 3 D (Three-Dimensional Imaging) fasahar ta jawo hankalin masana da yawa a cikin 'yan shekarun nan. Ta hanyar nuna hoton 3D na sakamakon, sakamakon ganowa ya fi ƙayyadaddun bayanai da fahimta.

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