# 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}

}