A method for auto-adjustment of a new Piezoelectric drive

Author

Zeichfussl, R. ; Gottlieb, B. ; Wallenhauer, C. ; Herzig, S. ; Kappel, A. ; Lüth, T.

Author_Institution

Corp. Technol., Power & Sensor Syst., Siemens AG, Munich

fYear

2009

fDate

14-17 April 2009

Firstpage

1

Lastpage

6

Abstract

Piezoelectric Actuator Drives (PADs) introduce a new kind of rotary motors, combining high dynamics, torque, and positioning accuracy. The working principle is based on a micro-toothed pair of ring and shaft, which guarantee form-fit and continuous force transmission. Due to miniaturization constant speed and absolute positioning accuracy depend on precise adjustment and therefore demand control to overcome mounting tolerances and thermal influence. In this paper a method for adjusting the PAD is presented, which makes use of the smart sensing function of the piezoelectric elements. In a simplified model the expected feedback will be calculated and an appropriate closed-loop controller will be proposed.

Keywords

closed loop systems; force control; intelligent sensors; machine control; motor drives; piezoelectric actuators; piezoelectric motors; position control; absolute positioning accuracy; closed-loop controller; constant speed miniaturization; continuous force transmission; dynamic rotary motor; form-fit force transmission; micro-toothed ring-shaft pair; piezoelectric actuator drive; smart sensing function; Atherosclerosis; Control systems; Kinematics; Open loop systems; Piezoelectric actuators; Power generation; Shafts; Teeth; Torque; Voltage; auto-adjustment; centering; closed-loop control; piezoelectric actuator drive; sensorless;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronics, 2009. ICM 2009. IEEE International Conference on

Conference_Location

Malaga

Print_ISBN

978-1-4244-4194-5

Electronic_ISBN

978-1-4244-4195-2

Type

conf

DOI

10.1109/ICMECH.2009.4957203

Filename

4957203