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However, equipping actuators with this capability in compact configurations is challenging while balancing operational efficiency. Inspired by the eye movements of humans, a miniature piezoelectric actuator with a square\u2010circular ring structure is reported. This combination\u2010customized design solution allows the driving feet to generate multidimensional oscillating trajectories, thus enabling 3\u2010DOF motions of different movers. A prototype measuring 31\u2009\u00d7\u200931\u2009\u00d7\u20094\u2009mm\n                    <jats:sup>3<\/jats:sup>\n                    and weighing 7.18\u2009g is fabricated. At 200\u2009V\n                    <jats:sub>p\u2010p<\/jats:sub>\n                    , the spherical mover is driven to rotate at 26.51\u2009rad\u2009s\n                    <jats:sup>\u22121<\/jats:sup>\n                    , while the flat mover achieves linear and rotational speeds of 110.33\u2009mm\u2009s\n                    <jats:sup>\u22121<\/jats:sup>\n                    and 5.73\u2009rad\u2009s\n                    <jats:sup>\u22121<\/jats:sup>\n                    , respectively. Moreover, this actuator can manipulate these movers with rotational and linear resolutions at the sub\u2010milliradian and sub\u2010micron levels, respectively. The drivable load weighs up to 43.6 times that of the prototype, far exceeding the capabilities of comparable actuators with similar structural configurations. Notably, the actuator realizes multi\u2010DOF actuation without additional stators or transmission mechanisms, enabling its application in fault inspection of electronic components. This study provides a novel idea for developing multi\u2010DOF miniature actuators.\n                  <\/jats:p>","DOI":"10.1002\/aisy.202401042","type":"journal-article","created":{"date-parts":[[2025,4,23]],"date-time":"2025-04-23T00:56:05Z","timestamp":1745369765000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["An Eyeball\u2010Movement\u2010Inspired Multi\u2010DOF Miniature Piezoelectric Actuator with Strong Load\u2010Driving Capability"],"prefix":"10.1002","volume":"7","author":[{"given":"Binbin","family":"Zhu","sequence":"first","affiliation":[{"name":"Key Laboratory of Structural Dynamics of Liaoning Province College of Sciences Northeastern University  Shenyang 110819 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5893-6731","authenticated-orcid":false,"given":"Yan Qing","family":"Wang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Structural Dynamics of Liaoning Province College of Sciences Northeastern University  Shenyang 110819 China"},{"name":"Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines Northeastern University  Shenyang 110819 China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,4,22]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1109\/TIE.2016.2585540"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1109\/TIE.2011.2165453"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.2103198118"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cja.2020.12.025"},{"key":"e_1_2_9_6_1","doi-asserted-by":"crossref","unstructured":"N.Farrow N.Correll 2015 IEEE\/RSJ Inter. 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