US Patent: 3,546,570 - Method for Driving Controlled Currents Through the Stator Windings of a Position Measuring Transformer


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US Patent: 3,546,570

Method for Driving Controlled Currents Through the Stator Windings of a Position Measuring Transformer

Patentee:

Thomas B. Bullock (exact or similar names) - Fond Du Lac, Fond Du Lac County, WI

USPTO Classifications:

318/660, 318/661

Tool Categories:

electrical devices : transformers

Assignees:

Giddings & Lewis Machine Tool Co. - Fond Du Lac, Fond Du Lac County, WI

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Apr. 19, 1968
Granted:	Dec. 08, 1970

Patent Pictures:

USPTO (New site tip)
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"Vintage Machinery" entry for Giddings & Lewis Manufacturing Co.

Description:

Abstract:

A pair of high gain amplifiers, each with negative current feedback, are used individually to drive a pair of stator windings of a position measuring transformer, sold under the trademark "Inductosyn," in response to a pair of voltages respectively representing the sine and cosine functions of a physical variable.