Miniature shape memory alloy pinch valve

Catherine M. Pemble, Bruce C. Towe

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

A normally closed miniature pinch valve employing a Nitinol shape memory alloy actuator to control flow in silicone microbore tubing has been designed, fabricated, and tested. The valve can withstand long term exposure to fluids because only the tubing interior is contacted by the regulated fluid. The valve has application to microflow chemistry and has the advantage of compact and simple construction. At a differential pressure of 3 psi the valve permits a maximum flow rate of about 0.28 ml/s and has a 398 mW power dissipation. The maximum differential pressure the valve can withstand is greater than 30 psi.

Original languageEnglish (US)
Pages (from-to)145-148
Number of pages4
JournalSensors and Actuators, A: Physical
Volume77
Issue number2
DOIs
StatePublished - Oct 12 1999

Fingerprint

shape memory alloys
Tubing
Shape memory effect
Fluids
Silicones
differential pressure
Flow control
Energy dissipation
Actuators
Flow rate
nitinol alloys
fluids
silicones
dissipation
flow velocity
actuators
chemistry
nitinol

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Instrumentation

Cite this

Miniature shape memory alloy pinch valve. / Pemble, Catherine M.; Towe, Bruce C.

In: Sensors and Actuators, A: Physical, Vol. 77, No. 2, 12.10.1999, p. 145-148.

Research output: Contribution to journalArticle

Pemble, Catherine M. ; Towe, Bruce C. / Miniature shape memory alloy pinch valve. In: Sensors and Actuators, A: Physical. 1999 ; Vol. 77, No. 2. pp. 145-148.
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