RESEARCH PAPERS: Papers on Fluidics

A Proportional Piezoelectric Electro-Fluidic Pneumatic Value Design

[+] Author and Article Information
C. K. Taft, B. M. Herrick

University of New Hampshire, Department of Mechanical Engineering, Durham, NH 03824

J. Dyn. Sys., Meas., Control 103(4), 361-365 (Dec 01, 1981) (5 pages) doi:10.1115/1.3139676 History: Online July 21, 2009


The development of a proportional electro-fluidic pneumatic valve is presented. The first stage of the valve consists of a piezoelectric bender element of bimorph construction centered between two nozzles. The bimorph is deformed by an electrical input signal. This, in turn, causes a change in pressure at the output of the nozzles, which will then be amplified to a usable level using cascaded laminar proportional amplifiers. A mathematical model of the valve’s behavior is discussed and verified with experimental measurements.

Copyright © 1981 by ASME
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