Iimotor ze-Piezoelectric ultrasonic zineenzuzo ezimbini ezibalulekileyo, ezizezi ubuninzi bamandla abo aphezulu kunye nesakhiwo sazo esilula, ezo zombini zinegalelo kwi-miniaturization yazo.Sakhe iprototype yemoto ye-ultrasonic esebenzisa istator esinomthamo omalunga ne-cubic millimeter enye.Iimvavanyo zethu zibonise ukuba i-motor prototype ivelisa i-torque engaphezu kwe-10 μNm kunye ne-cubic millimeter stator.Le moto inoveli ngoku yeyona moto incinci incinci ye-ultrasonic ephuhliswe ngetorque esebenzayo.
Ii-actuator ezincinci ziyafuneka kwizicelo ezininzi, ukusuka kwisixhobo esiphathwayo kunye nesinxitywayo ukuya kwizixhobo zonyango ezingenelelayo kancinci.Nangona kunjalo, imida enxulumene nokwenziwa kwabo ithintele ukuthunyelwa kwabo kwisikali se-millimeter enye.Ezona njini zixhaphakileyo zombane zifuna ukwenziwa kweminiaturization yezinto ezininzi ezintsonkothileyo ezinje ngee-coil, iimagnethi, kunye neebheringi, kwaye zibonise ukuchithwa kwetorque enkulu ngenxa yokukalwa.Iinjini ze-Electrostatic zenza kube lula ukubaleka ngokusebenzisa itekhnoloji ye-microelectromechanical systems (MEMS), kodwa amandla azo okuqhuba abuthathaka athintele uphuhliso lwazo olongezelelweyo.
I-piezoelectric ultrasonic motors kulindeleke ukuba ibe yi-micromotor ephezulu yokusebenza ngenxa yobuninzi be-torque kunye nezinto ezilula.Imoto encinci ye-ultrasonic ekhoyo echazwe kude kube ngoku inecandelo lensimbi kunye nobubanzi be-0.25 mm kunye nobude be-1 mm.Nangona kunjalo, ubukhulu bayo bubonke, kubandakanywa ne-preload mechanism, ifikelela kwi-2-3 mm, kwaye ixabiso layo le-torque lincinci kakhulu (47 nNm) ukuba lisetyenziswe njenge-actuator kwizicelo ezininzi.
UTomoaki Mashimo, umphandi kwiYunivesithi yeTekhnoloji yaseToyohashi, uye waphuhlisa i-micro ultrasonic motor kunye ne-cubic millimeter stator, njengoko kuboniswe kwi-Fig.I-stator, equka i-cube yesinyithi kunye ne-plate-piezoelectric elements ebambelele emacaleni ayo, inokwehliswa ngaphandle kokufuna ukucwangciswa okukhethekileyo okanye iindlela zokuhlanganisa.Iprototype i-micro ultrasonic motor iphumelele i-torque ye-10 μNm (Ukuba i-pulley ine-radius ye-1 mm, i-motor inokuphakamisa ubunzima be-1-g) kunye ne-angular velocity ye-3000 rpm malunga ne-70 Vp-p.Eli xabiso le-torque ngamaxesha angama-200 likhulu kunelo leenjini ezincinci ezikhoyo, kwaye lisebenza kakhulu ekujikelezeni izinto ezincinci ezifana nezinzwa ezincinci kunye namalungu omatshini.
Ixesha lokuposa: Feb-27-2018