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Actuators 2017, 6(1), 7; doi:10.3390/act6010007

Piezoelectric Inertia Motors—A Critical Review of History, Concepts, Design, Applications, and Perspectives

Grube 14, 33098 Paderborn, Germany
Academic Editor: Delbert Tesar
Received: 26 November 2016 / Revised: 16 January 2017 / Accepted: 18 January 2017 / Published: 6 February 2017
View Full-Text   |   Download PDF [1128 KB, uploaded 6 February 2017]   |  

Abstract

Piezoelectric inertia motors—also known as stick-slip motors or (smooth) impact drives—use the inertia of a body to drive it in small steps by means of an uninterrupted friction contact. In addition to the typical advantages of piezoelectric motors, they are especially suited for miniaturisation due to their simple structure and inherent fine-positioning capability. Originally developed for positioning in microscopy in the 1980s, they have nowadays also found application in mass-produced consumer goods. Recent research results are likely to enable more applications of piezoelectric inertia motors in the future. This contribution gives a critical overview of their historical development, functional principles, and related terminology. The most relevant aspects regarding their design—i.e., friction contact, solid state actuator, and electrical excitation—are discussed, including aspects of control and simulation. The article closes with an outlook on possible future developments and research perspectives. View Full-Text
Keywords: inertia motor; stick-slip motor; smooth impact drive; piezeoelectric motor; review inertia motor; stick-slip motor; smooth impact drive; piezeoelectric motor; review
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Hunstig, M. Piezoelectric Inertia Motors—A Critical Review of History, Concepts, Design, Applications, and Perspectives. Actuators 2017, 6, 7.

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