Browse Prior Art Database

Pattern Generator

IP.com Disclosure Number: IPCOM000098895D
Original Publication Date: 1958-Oct-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 2 page(s) / 49K

Publishing Venue

IBM

Related People

Cartmell, WJ: AUTHOR [+2]

Abstract

A fluid 10 containing a translucent dispersoid is placed in a cylinder 11 having transparent faces 12. Piezoelectric elements 13 are placed around the cylinder 11 and in contact with the fluid 10. A signal on an input 14 causes the associated element 13 to vibrate and transmit the signal through the fluid where it is attenuated. A predetermined pattern is formed by the dispersoid in response to a suitable combination of signals on inputs 14, variable in amplitude and frequency, as a result of the concentration of the dispersoid at positions of lowest signal strength.

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Pattern Generator

A fluid 10 containing a translucent dispersoid is placed in a cylinder 11 having transparent faces 12. Piezoelectric elements 13 are placed around the cylinder 11 and in contact with the fluid 10. A signal on an input 14 causes the associated element 13 to vibrate and transmit the signal through the fluid where it is attenuated. A predetermined pattern is formed by the dispersoid in response to a suitable combination of signals on inputs 14, variable in amplitude and frequency, as a result of the concentration of the dispersoid at positions of lowest signal strength.

A source of light 15 is directed toward the face 12 of the cylinder 11 and is reflected by the dispersoid as a visible indication of the combination of signals on the inputs 14. This device, therefore, functions as a pattern generator in which an unlimited number of patterns may be formed by varying the electrical signals, the shape of the container and the focal point of the individual piezoelectric elements. Light, transmitted through the device, may also be used as an indication with equal facility.

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