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Electronics and FluidicsElectrical and Electronic Equipment

Zero-Cost Electromagnetically Transparent Fluid Controlled Electrical Switch

Authors: Vincent J. Ellis; ARMY RESEARCH LAB ADELPHI MD
 
Abstract: A remote fluidic controlled electric switch adaptation is disclosed. The adaptation is electromagnetically transparent and material costs are near zero. An electric switch, containing mechanically operated contacts, is modified by a flexible diaphragm secured next to the switch's mechanical contacts via uses an electromagnetically transparent housing. Pressurized fluid, either liquid or gas, enters the housing and inflates the diaphragm. This exerts positive pressure on the electric switch's mechanical contact and causes the electrical contacts to close, turning the switch on. Releasing applied fluidic pressure allows the diaphragm to relax, causing the switch to turn off. Adaptation materials are electromagnetically transparent for use in electromagnetic experimentation and cost less than 1 percent of the cost of the electrical switch to which the adaptation is applied. (AN)

Limitations: APPROVED FOR PUBLIC RELEASE
Description: Final rept. for period ending Feb 95
Pages: 11
Report Date: JAN 96
Report Number: A532403
Keywords relating to this report:
*Electric switches
*Fluidics
ADAPTATION
AIR PRESSURE
COST EFFECTIVENESS
Diaphragms_Mechanics_
ELECTRIC CONTACTS
ELECTROMAGNETIC COMPATIBILITY
ELECTROMAGNETIC RADIATION
ELECTROMAGNETIC SUSCEPTIBILITY
FLUID CONTROL
OFF THE SHELF EQUIPMENT
PRESSURE GRADIENTS
PRESSURIZATION
RELIABILITY_ELECTRONICS_
REMOTE CONTROL
TRANSPARENCE
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