Mesebetsi ea indasteri hangata e loantšana le libaka tse metsi tse sutumelletsang limithara tsa phallo ea setso ho fihlela meeling ea tsona—nahana ka metsi a litšila a tletseng seretse, maro a pholileng a bubbly, lik'hemik'hale tse senyang, kapa oli e nang le viscosity e phahameng. Ka mashome a lilemo, limithara tsa phallo ea ultrasonic li ne li thatafalloa ho boloka ho nepahala maemong ana, li sitisoa ke tšitiso ea matšoao, ho senyeha ha likarolo le ho ikamahanya le maemo ho fokolang. Leha ho le joalo, liphetoho tsa morao tjena tsa theknoloji li fetotse lisebelisoa tsena hore e be litharollo tse tšepahalang esita le maemong a thata ka ho fetisisa, li sebetsana le lintlha tsa bohlokoa tsa bohloko ka boqapi ba moralo, kutloisiso le ts'ebetso ea data.
E 'ngoe ea tsoelo-pele e nang le tšusumetso e kholo ke phetoho ho li-configurations tsa transducer tsa litsela tse ngata. Limithara tsa khale tsa ultrasonic li ne li itšetlehile ka tsela e le 'ngoe ea lets'oao pakeng tsa li-transducer tse peli, tse ileng tsa hloleha habonolo haeba li thibetsoe ke lintho tse tiileng kapa li sitisoa ke pherekano. Mefuta ea sejoale-joale ea litsela tse ngata—e nang le li-transducer tse 4 ho isa ho tse 8 tse hlophisitsoeng ka lipaterone tse tšekaletseng kapa tse potolohang—e hlōla sena ka ho hapa data ea phallo ho tsoa likhutlong tse ngata. Mohlala, fektheri ea lik'hemik'hale e sebetsanang le metsi a litšila a nang le lintho tse tiileng tse emisitsoeng tse 15% e bone ho nepahala ho ntlafala ho tloha ho ±3% (ka limithara tsa litsela tse le 'ngoe) ho ea ho ±0.8% kamora ho ntlafatsoa ho ea ho meter ea ultrasonic ea litsela tse 6. Esita le haeba tsela e le 'ngoe e koahetsoe ke seretse, tse ling li ntse li tsoela pele ho fana ka lipalo tse nepahetseng, li felisa tlhoko ea ho lekola bocha khafetsa.
Phihlello e 'ngoe ea bohlokoa ke ts'ebetso ea matšoao a feto-fetohang, e tsamaisoang ke li-algorithms tse tsamaisoang ke AI. Li-bubble kapa khase e koetlisitsoeng e kile ea e-ba lets'oao la lefu bakeng sa li-ultrasound metres, kaha li bonahatsa maqhubu a molumo le ho sotha lipalo tsa phallo. Li-meter tsa kajeno li sebelisa tlhahlobo ea matšoao a nako ea sebele ho khetholla lipakeng tsa li-bubble tse fetohang (tse se nang kotsi) le lipokotho tsa khase tse tsoelang pele (tse nang le mathata). Li fetola maqhubu a matšoao ka bohona—li fetohela maqhubung a tlase (0.5–1 MHz) ho kenella metsing a bubbly, mohlala—kapa li eketsa matšoao a fokolang ho boloka botsitso. Sistimi ea metsi a pholileng ea setsi sa motlakase, eo pele e neng e e-na le liphoso tse fetang 20 tse amanang le li-bubble ka khoeli, joale e tlaleha ka tlase ho tse peli kamora ho kenya li-meter ka theknoloji ena.
Mekhoa e mecha ea saense ea lintho tse bonahalang e boetse e matlafalitse li-ultrasound metara khahlanong le ho bola le ho hohlana. Li-transducer tsa setso, tse entsoeng ka tšepe e sa hloekang e tloaelehileng, li bola kapele ka har'a maro a asiti kapa a caustic (mohlala, pH 2 merafong ea metsi a litšila). Mefuta e mecha e sebelisa li-transducer tsa ceramic kapa Hastelloy C-276: ceramic e hanela ho bola le ho ngoapa ho tsoa linthong tse thata tse khorofo, ha Hastelloy e sebetsana le lik'hemik'hale tse feteletseng joalo ka sulfuric acid. Ka mokhoa o ts'oanang, li-lining tsa meter li fetohile ho tloha ho rabara ho ea ho PTFE kapa ETFE, thepa e mamellang mocheso ho fihlela ho 150°C le ho hanela ho senyeha ho tsoa ho li-solvents tse matla. Ts'ebetso ea merafo e tlalehile hore li-ceramic-transducer metara li nka nako e telele ka makhetlo a 3 ho feta tsa tšepe e sa hloekang meleng ea tsona ea metsi a litšila a asiti.
Metsi a phallang ka tlase le a nang le viscosity e phahameng, ao pele a neng a etsa hore dimithara tsa ultrasound li ngolise dipalo tsa bohata tsa "lefela", jwale a rua molemo ho ntlafatsong ya lebelo le tlase. Theknoloji ya micro-pulse—e romelang ho phatloha ha ultrasound e kgutshwane le e atisang ho hlaha—e nolofalletsa ho lemoha sekgahla sa phallo se tlase ho 0.01 m/s, e leng sa bohlokwa bakeng sa ditshebetso tse kang tlhahiso ya meriana. Bakeng sa matsira a nang le viscosity e phahameng (mohlala, oli ya enjene ya 10,000 cP), dimithara jwale di kenyeletsa di-algorithms tsa phiscosity-compensation tse fetolang dipalo ho latela data ya mocheso wa nako ya nnete (kaha viscosity e fokotseha ka mocheso). Semela sa ditlolo se fumane phoso ena e fokotsehileng ya tekanyo bakeng sa oli e boima ho tloha ho ±4% ho isa ho ±1.2%.
Qetellong, likarolo tsa ho itlhahloba le tsa ho shebella hole li fokolitse moroalo oa tlhokomelo. Limithara tsa sejoale-joale tsa ultrasound li lula li latela litekanyo tsa ts'ebetso—matla a lets'oao, bophelo bo botle ba transducer, mocheso—'me li romela litemoso bakeng sa mathata a kang ho silafala kapa ho tsofala ha likarolo. Tse ling li bile li kenyelletsa ho itlhoekisa ha ultrasound: li-pulse tse khutšoane, tse matla haholo tse ntšang mabone ho tsoa ho li-transducer. Setsi sa kalafo ea metsi a litšila se sebelisang limithara tsena se fokolitse nako ea tlhokomelo ka 60%, ha litsebi li sebetsana le mathata ka mokhoa o potlakileng ho e-na le ho arabela liphosong.
Tsoelo-pele ena e hlalositse bocha seo li-meter tsa phallo ea ultrasonic li ka se etsang, tsa fetola libaka tsa mokelikeli tse kileng tsa ba phephetso hore e be tse laolehang. Ka ho kopanya kutloisiso ea litsela tse ngata, li-algorithms tse feto-fetohang, thepa e tšoarellang, le tlhokomelo e bohlale, li-meter tsa ultrasound tsa kajeno li fana ka ho nepahala, bophelo bo bolelele, le katleho moo lisebelisoa tsa setso li neng li haella. Bakeng sa liindasteri tse itšetlehileng ka tekanyo e nepahetseng ea phallo—ho tloha ts'ebetsong ea lik'hemik'hale ho ea tsamaisong ea metsi a litšila—mahlale ana ha se feela ntlafatso, empa ke lisebelisoa tsa bohlokoa bakeng sa ts'ebetso e tšepahalang.
Nako ea poso: Mphalane-11-2025