Frequency deviation measurement based on two-arm Δ-Σ modulated bridge

Author

Zrilic, Djuro G. ; Pjevalica, Nebojsa U.

Author_Institution

Dept. of Eng., New Mexico Highlands Univ., Las Vegas, NM, USA

Volume

53

Issue

2

fYear

2004

fDate

4/1/2004 12:00:00 AM

Firstpage

293

Lastpage

299

Abstract

A method of frequency deviation measurement is presented. The use of a two-arm bridge is based on the use of delta-sigma (Δ-Σ) modulation and arithmetic operations on two synchronous Δ-Σ modulated pulse streams. The simulation results indicate a good linear relationship between frequency deviation and pulse count over the operating range. Stability of the clock and components mismatch of the Δ-Σ modulator are not critical for operation. Performance comparisons with existing solutions are given.

Keywords

frequency measurement; sigma-delta modulation; arithmetic operations; clock stability; component stability; delta-sigma modulation; delta-sigma modulator; delta-sigma pulse stream; frequency deviation measurement; pulse count; synchronous delta-sigma modulated pulse streams; two-arm bridge; Bridge circuits; Counting circuits; Delta modulation; Detectors; Frequency measurement; Power engineering and energy; Power system measurements; Pulse measurements; Pulse modulation; Pulse power systems;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2003.822709

Filename

1284858