I-Toshiba PVT-712BT 11MC4 iMicro Convex Ultrasound Probe yeSibhedlele isixhobo soNyango

Ezinye iiprobe zeToshiba esinokuzinika:

Inqaku lolwazi

IiTransducers

I-Ultrasonic transducers iguqula i-AC ibe yi-ultrasound, kunye ne-reverse. I-Ultrasonics, ngokuqhelekileyo ibhekisela kwi-piezoelectric transducers okanye i-capacitive transducers. Iikristale zePiezoelectric zitshintsha ubungakanani kunye nokumila xa kusetyenziswa umbane; I-voltage ye-AC ibenza i-oscillate kwi-frequency efanayo kwaye ivelise isandi se-ultrasonic. I-Capacitive transducers isebenzisa imimandla ye-electrostatic phakathi kwe-diaphragm eqhubayo kunye ne-backing plate.

Ipateni ye-beam ye-transducer inokumiselwa ngummandla we-transducer osebenzayo kunye nokuma, i-wavelength ye-ultrasound, kunye nesantya somsindo we-propagation medium. Imizobo ibonisa iindawo ezivakalayo zomntu ongagxilwanga kunye ne-transducer egxininisekileyo ye-ultrasonic emanzini, ngokucacileyo kumanqanaba ahlukeneyo amandla.

Ekubeni izinto ze-piezoelectric zivelisa i-voltage xa ​​kunyanzeliswa amandla kuzo, ziyakwazi ukusebenza njenge-ultrasonic detectors. Ezinye iinkqubo zisebenzisa ii-transmitters kunye nabamkeli abahlukeneyo, ngelixa ezinye zidibanisa zombini imisebenzi kwi-piezoelectric transceiver enye.

Abadlulisi be-Ultrasound banokusebenzisa imigaqo engeyiyo-piezoelectric. njengemagnetostriction. Izinto ezinale propati zitshintsha ubungakanani kancinane xa zibonakaliswe kumhlaba wamagnetic, kwaye zenze ii-transducers eziphathekayo.

I-microphone ye-capacitor ("condenser") ine-diaphragm encinci ephendula kumaza e-ultrasound. Utshintsho kwintsimi yombane phakathi kwe-diaphragm kunye neplate yokuxhasa esondelene ngokusondeleyo iguqula izibonakaliso zomsindo kwimisinga yombane, enokwandiswa.

Umgaqo we-diaphragm (okanye i-membrane) ikwasetyenziswa kwi-micro-machined ultrasonic transducers (MUTs).

Ezi zixhobo zenziwe kusetyenziswa ubuchwepheshe be-silicon micro-machining (iteknoloji ye-MEMS), ebaluleke kakhulu ekwenzeni ii-transducer arrays. Ukungcangcazela kwe-diaphragm kunokulinganiswa okanye kuqhutywe nge-elektroniki ngokusebenzisa i-capacitance phakathi kwe-diaphragm kunye ne-plate exhasayo esondeleyo (CMUT), okanye ngokongeza umgca omncinci we-piezo-electric material kwi-diaphragm (PMUT). Ngenye indlela, uphando olutshanje lubonise ukuba ukungcangcazela kwe-diaphragm kunokulinganiswa nge-resonator encinci ye-optical ring ehlanganiswe ngaphakathi kwe-diaphragm (OMUS).

IiTransducers ze-Ultrasonic nazo zisetyenziswa kwi-acoustic levitation.