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Browse Prior Art Database

Transducer Device

IP.com Disclosure Number: IPCOM000097919D
Original Publication Date: 1961-Sep-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Hill, RS: AUTHOR

Abstract

The device acts as a sensing element for converting analog position to electrical digital information. It is capable of performing a logical function so as to make the sensed digital information directly compatible with flux logic circuitry.

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Transducer Device

The device acts as a sensing element for converting analog position to electrical digital information. It is capable of performing a logical function so as to make the sensed digital information directly compatible with flux logic circuitry.

The left-hand drawing shows the 0 condition with an armature shunting legs A and B. The right hand drawing shows the 1 position (no shunt). The position of the armature is representative of the analog quantity being converted. When the legs are bridged by an armature, the D.C. bias on the legs inhibits the input hole. It is assumed that the core has been previously reset in the direction shown. The input pulse induces flux opposite in direction to the bias or reset flux. However, the influence of the bias in the legs keeps the core in the state shown. The drive winding is pulsed to induce flux in the direction of the reset flux. Thus, no flux is switched around the output hole and no voltage is induced in the output winding.

When the legs are not bridged with an armature, the flux induced by the bias folds back on itself. The core is biased in a counterclockwise direction by virtue of the reset pulse. In this condition, an input, which is opposite in direction to the reset, kidneys the flux path of the core. Simultaneously, the bias on the output hole switches flux around the output hole. The resulting flux paths are shown. Now, if the output hole is driven in the same direction as reset, the flux around the...