Browse Prior Art Database

Pneumatic to Electric Transducer

IP.com Disclosure Number: IPCOM000096742D
Original Publication Date: 1963-Oct-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Related People

Meier, JH: AUTHOR

Abstract

This transducer has diaphragm 1 of electrically conductive rubber that is clamped about its outer periphery between two electrically conductive rings 2. These rings, in turn, are clamped between insulating housings 3. Arranged coaxially with opposite sides of diaphragm 1 are electrodes 4 having axial openings 5.

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Pneumatic to Electric Transducer

This transducer has diaphragm 1 of electrically conductive rubber that is clamped about its outer periphery between two electrically conductive rings 2. These rings, in turn, are clamped between insulating housings 3. Arranged coaxially with opposite sides of diaphragm 1 are electrodes 4 having axial openings 5.

Diaphragm 1 is normally disposed between and out of contact with the electrodes. However, when pressure fluid is supplied to upper opening 5, diaphragm 1 is deflected into contact with lower electrode 4, and conversely, for selectively completing electrical circuits including one of the electrodes 4 and its associated contact ring 2. If preferred, the transducer may be of the single-acting type rather than the double-acting type shown.

This transducer provides lower current density thus preventing deterioration of the electrodes 2. Also contact bounce is minimized. This is especially desirable for use in low pressure systems, such as in the fluid logic field.

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