Browse Prior Art Database

INDUCTOSYN TRANSDUCER PROCESSOR

IP.com Disclosure Number: IPCOM000025521D
Original Publication Date: 1985-Dec-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 47K

Publishing Venue

Xerox Disclosure Journal

Abstract

The intelligence signal from an inductosyn transducer is at a high carrier frequency; e.g., 250 KHz. The processor disclosed in the drawing translates position information to a lower frequency allowing more time for processing and thereby permitting information to be directly processed by a microcomputer.

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XEROX DISCLOSURE JOURNAL

Fo

INDUCTOSYN TRANSDUCER PROCESSOR Proposed Classification Anonymous U.S. CI. 318/654

Int. C1. C05b 1/06

The intelligence signal from an inductosyn transducer is at a high carrier frequency; e.g., 250 KHz. The processor disclosed in the drawing translates position information to a lower frequency allowing more time for processing and thereby permitting information to be directly processed by a microcomputer.

Referring to the drawing, the position of the inductosyn is in the phase between the position signal and the reference frequency at the carrier frequency. Since the carrier frequency is high, the measurement of the phase (position) by digital counting would require a very high frequency clock. The circuit of the drawing reduces the clock frequency, using integer dividers M, N and P to provide frequencies Fl,. F2, and F3, where F1=Fo/M, F2=Fo/N, F3=F2/P and Fo=(N-
M)/(NxM) by mixer operation.

N

-M---c DRIVE

* F3

t

OUTPUT

Volume 10 Number 6 November/December 1985 337

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November/December 6 Number 10 Volume XEROX I 3 38 DISCLOSURE JOURNAL 1985

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