Toshiba PVT-712BT 11MC4 Micro Convex Ultrasound Probe Hospital sesebelisoa sa bongaka

Li-probe tse ling tsa Toshiba tseo re ka fanang ka tsona:

Ntlha ea tsebo

Li-transducers

Li-transducer tsa Ultrasonic li fetolela AC hore e be ultrasound, hammoho le ka morao. Ultrasonics, hangata e bua ka li-transducers tsa piezoelectric kapa li-capacitive transducers. Likristale tsa piezoelectric li fetola boholo le sebopeho ha motlakase o sebelisoa; Matla a motlakase a AC a li etsa hore li sisinyehe ka lebelo le tšoanang 'me li hlahise molumo oa ultrasonic. Li-transducer tsa capacitive li sebelisa libaka tsa electrostatic lipakeng tsa diaphragm tse tsamaisang le poleiti e tšehetsang.

Mokhoa oa beam oa transducer o ka khethoa ke sebaka se sebetsang sa transducer le sebopeho, bolelele ba maqhubu a ultrasound, le lebelo la molumo oa mokhoa oa ho hasana. Lits'oants'o li bonts'a libaka tsa molumo oa transducer e sa tsepameng le e tsepamisitseng maikutlo metsing, ka mokhoa o hlakileng ka maemo a fapaneng a matla.

Kaha lisebelisoa tsa piezoelectric li hlahisa motlakase ha ho sebelisoa matla ho tsona, li ka boela tsa sebetsa e le li-detectors tsa ultrasonic. Litsamaiso tse ling li sebelisa li-transmitters le li-receiver tse arohaneng, ha tse ling li kopanya mesebetsi ka bobeli ho transceiver e le 'ngoe ea piezoelectric.

Li-transmitters tsa Ultrasound li ka boela tsa sebelisa melao-motheo e seng ea piezoelectric. joalo ka magnetostriction. Lisebelisoa tse nang le thepa ena li fetola boholo hanyenyane ha li pepesehetse matla a khoheli, 'me li etsa li-transducer tse sebetsang.

Microphone ea capacitor ("condenser") e na le diaphragm e tšesaane e arabelang maqhubu a ultrasound. Liphetoho sebakeng sa motlakase pakeng tsa diaphragm le poleiti e tšehetsang e haufi-ufi e fetola melaetsa ea molumo ho maqhubu a motlakase, a ka matlafatsoang.

Molao-motheo oa diaphragm (kapa membrane) o boetse o sebelisoa ho li-micro-machined ultrasonic transducers (MUTs).

Lisebelisoa tsena li entsoe ka theknoloji ea silicon micro-machining (theknoloji ea MEMS), e leng molemo ka ho khetheha bakeng sa ho etsoa ha li-transducer arrays. Ho thothomela ha diaphragm ho ka lekanyetsoa kapa ho susumetsoa ka mokhoa oa elektronike ho sebelisa matla a pakeng tsa diaphragm le poleiti e tšehetsang e haufi-ufi (CMUT), kapa ka ho eketsa lesela le lesesaane la lisebelisoa tsa motlakase tsa piezo ho diaphragm (PMUT). Ntle le moo, liphuputso tsa morao-rao li bonts'itse hore ho thothomela ha diaphragm ho ka lekanyetsoa ka resonator e nyane ea optical ring e kopantsoeng ka har'a diaphragm (OMUS).

Ultrasonic Transducers le tsona li sebelisoa ka acoustic levitation.