CRESCENT: a novel piezoelectric bending actuator

Sanjay Chandran; Valery D. Kugel; Leslie Eric Cross

doi:10.1117/12.275669

6 June 1997 CRESCENT: a novel piezoelectric bending actuator

Sanjay Chandran, Valery D. Kugel, Leslie Eric Cross

Proceedings Volume 3041, Smart Structures and Materials 1997: Smart Structures and Integrated Systems; (1997) https://doi.org/10.1117/12.275669
Event: Smart Structures and Materials '97, 1997, San Diego, CA, United States

Abstract

Piezoelectric actuators have significant potential for use in smart systems like vibration suppression and acoustic noise canceling devices. In this work, a novel piezoelectric bending actuator CRESCENT was developed. CRESCENT is a stress-biased ceramic-metal composite actuator. The technology involves the use of the difference in thermal contraction between the ceramic and the metal plates bonded together at a high temperature by a polymeric agent to produce a stress-biased curved structure. An extensive experimental investigation of this device in the cantilever configuration was carried out. The tip displacement, blocking force and electrical admittance and were chosen to characterize the performance of the actuator under quasistatic conditions. The device fabricated at optimum temperature exhibits large tip displacement and blocking force and possesses superior electromechanical characteristics to conventional unimorph actuators.

Citation Download Citation

Sanjay Chandran, Valery D. Kugel, and Leslie Eric Cross "CRESCENT: a novel piezoelectric bending actuator", Proc. SPIE 3041, Smart Structures and Materials 1997: Smart Structures and Integrated Systems, (6 June 1997); https://doi.org/10.1117/12.275669

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