Piezoelectric ultrasonic Motors nwere uru abụọ dị ịrịba ama, ya bụ njupụta ike ha dị elu na usoro ha dị mfe, nke abụọ na-enye aka na miniaturization ha.Anyị ejirila stator nwere olu dị ihe dị ka otu milimita cubic wuru prototype micro ultrasonic moto.Nnwale anyị egosila na moto prototype na-ewepụta ihe karịrị 10 μNm nwere otu cubic millimeter stator.Moto akwụkwọ akụkọ ugbu a bụ moto micro ultrasonic kacha nta nke ejirila torque bara uru mepụta ya.
A na-achọ micro actuators maka ọtụtụ ngwa, sitere na ekwentị mkpanaaka na ngwaọrụ wearable ruo ngwaọrụ ahụike na-akpasu obere nsogbu.Agbanyeghị, mmachi jikọtara ya na imepụta ha amachibidoro ibuga ha n'ọnụọgụ otu millimita.Igwe ọkụ eletrik na-ahụkarị na-achọ ka mbelata nke ọtụtụ ihe mgbagwoju anya dị ka coils, magnets, na bearings, na-egosipụta nhụsianya siri ike n'ihi ncha ahụ.Igwe ọkụ eletrik na-eme ka ọ dị mma site na iji teknụzụ microelectromechanical Systems (MEMS), mana ike ịnya ụgbọ ala ha na-adịghị ike egbochila mmepe ha.
A na-atụ anya na piezoelectric ultrasonic motors ga-abụ micromotors na-arụ ọrụ dị elu n'ihi njupụta ha dị elu na ihe ndị dị mfe.Moto ultrasonic kacha nta dị ugbu a kọrọ ruo taa nwere akụrụngwa ọla nwere dayameta nke 0.25 mm yana ogologo 1 mm.Agbanyeghị, ngụkọta nha ya, gụnyere usoro mbubata, ruru 2-3 mm, uru iyi ya pere mpe (47 nNm) maka iji dị ka onye na-eme ihe n'ọtụtụ ngwa.
Tomoaki Mashimo, onye nyocha na Mahadum Teknụzụ Toyohashi, anọwo na-emepụta moto micro ultrasonic nke nwere stator cubic millimeters, dị ka e gosiri na Fig. 1, ma ọ bụkwa otu n'ime moto ultrasonic kacha nta arụtụrụla.The stator, nke mejupụtara cube dara nwere oghere site na oghere na efere-piezoelectric ọcha na-arapara n'akụkụ ya, enwere ike ịgbada ya na-achọghị usoro nhazi ma ọ bụ mgbakọ pụrụ iche.Igwe ihe nleba anya micro ultrasonic moto nwetara ikike bara uru nke 10 μNm (Ọ bụrụ na pulley nwere radius nke 1 mm, moto ahụ nwere ike ibuli ibu 1-g) yana ọsọ angular nke 3000 rpm na ihe dịka 70 Vp-p.Uru torque a dị okpukpu 200 karịa nke micro Motors dị ugbu a, ọ dịkwa ezigbo uru maka ịtụgharị obere ihe dị ka obere sensọ na akụkụ igwe.
Oge nzipu: Feb-27-2018