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Title: Analog quadrature signal to phase angle data conversion by a quadrature digitizer and quadrature counter

Abstract

The quadrature phase angle phi (t) of a pair of quadrature signals S/sub 1/(t) and S/sub 2/(t) is digitally encoded on a real time basis by a quadrature digitizer for fractional phi (t) rotational excursions and by a quadrature up/down counter for full phi (t) rotations. The pair of quadrature signals are of the form S/sub 1/(t) = k(t) sin phi (t) and S/sub 2/(t) = k(t) cos phi (t) where k(t) is a signal common to both. The quadrature digitizer and the quadrature up/down counter may be used together or singularly as desired or required. Optionally, a digital-to-analog converter may follow the outputs of the quadrature digitizer and the quadrature up/down counter to provide an analog signal output of the quadrature phase angle phi (t).

Inventors:
Issue Date:
OSTI Identifier:
5307609
Application Number:
ON: DE82016095
Assignee:
Dept. of Energy ERA-07-051392; EDB-82-130338
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Resource Relation:
Other Information: Portions of document are illegible
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; QUADRATURES; DIGITIZERS; DESIGN; INTERFEROMETRY; PHASE SHIFT; POLARIMETERS; SPECIFICATIONS; 440300* - Miscellaneous Instruments- (-1989)

Citation Formats

Buchenauer, C.J. Analog quadrature signal to phase angle data conversion by a quadrature digitizer and quadrature counter. United States: N. p., 1981. Web.
Buchenauer, C.J. Analog quadrature signal to phase angle data conversion by a quadrature digitizer and quadrature counter. United States.
Buchenauer, C.J. Wed . "Analog quadrature signal to phase angle data conversion by a quadrature digitizer and quadrature counter". United States.
@article{osti_5307609,
title = {Analog quadrature signal to phase angle data conversion by a quadrature digitizer and quadrature counter},
author = {Buchenauer, C.J.},
abstractNote = {The quadrature phase angle phi (t) of a pair of quadrature signals S/sub 1/(t) and S/sub 2/(t) is digitally encoded on a real time basis by a quadrature digitizer for fractional phi (t) rotational excursions and by a quadrature up/down counter for full phi (t) rotations. The pair of quadrature signals are of the form S/sub 1/(t) = k(t) sin phi (t) and S/sub 2/(t) = k(t) cos phi (t) where k(t) is a signal common to both. The quadrature digitizer and the quadrature up/down counter may be used together or singularly as desired or required. Optionally, a digital-to-analog converter may follow the outputs of the quadrature digitizer and the quadrature up/down counter to provide an analog signal output of the quadrature phase angle phi (t).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {9}
}