Browse Prior Art Database

Electromechanical Transducer

IP.com Disclosure Number: IPCOM000098245D
Original Publication Date: 1960-Jun-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 27K

Publishing Venue

IBM

Related People

Gamblin, RL: AUTHOR

Abstract

A coil 10 is wrapped to embrace a relatively thin-walled conducting cylinder 11. The cylinder 11 is closed at one end by being secured to a fixed member 12. An actuator 13 is slidably disposed to extend from the other end of the cylinder and is provided with a seal 14 to prevent the escape of a suitable fluid contained within the cylinder. The actuator 13 is normally biased in a home position relative to the cylinder by any suitable means.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

Electromechanical Transducer

A coil 10 is wrapped to embrace a relatively thin-walled conducting cylinder
11. The cylinder 11 is closed at one end by being secured to a fixed member 12. An actuator 13 is slidably disposed to extend from the other end of the cylinder and is provided with a seal 14 to prevent the escape of a suitable fluid contained within the cylinder. The actuator 13 is normally biased in a home position relative to the cylinder by any suitable means.

One end of the coil 10 is connected to ground potential while the other end is connected to a switch 15. One contact of switch 15 is connected to a capacitor 16 and to a resistor 17. The capacitor 16 is connected to ground potential, while resistor 17 is connected to a suitable electrical potential.

When current suddenly passes through the coil 10 upon closure of the switch 15, a force is exerted upon the walls of the cylinder 11. The eddy currents produced in the walls of the cylinder 11 prevent the magnetic field developed by the coil 10 from penetrating into the fluid, resulting in forces exerting pressure. The fluid serves to transmit the pressure to the actuator 13 to displace it.

The fluid may be mercury or liquid sodium or other type of electrical conducting fluid to enable the magnetic field to act directly upon the fluid and the cylinder, in this instance, can be of nonconductive material.

1

Page 2 of 2

2

[This page contains 1 picture or other non-text object]