Analysis, design, and implementation of an AC bridge for impedance measurements

Author

Awad, Selim S. ; Narasimhamurthi, N. ; Ward, William H.

Author_Institution

Dept. of Electr. & Comput. Eng., Michigan Univ., Dearborn, MI, USA

Volume

43

Issue

6

fYear

1994

fDate

12/1/1994 12:00:00 AM

Firstpage

894

Lastpage

899

Abstract

The paper reviews the digital AC bridge. A more accurate and thorough analysis of the bridge is presented. Based on the analysis a simple adaptive algorithm is proposed in order to ensure fast conversion. In addition, a new design of the bridge, based on the TMS 320C25, is given. The system is implemented with the Dalanco Spry model 25 DSP board, on a software system designed whereby an IBM PC host computer provides control of the bridge. Experimental results are presented

Keywords

IBM computers; bridge circuits; circuit CAD; circuit analysis computing; digital circuits; digital signal processing chips; electric impedance measurement; least mean squares methods; AC bridge; Dalanco Spry model 25 DSP board; IBM PC host computer; TMS 320C25; adaptive algorithm; bridge design; impedance measurements; software system; Adaptive algorithm; Algorithm design and analysis; Bridge circuits; Convergence; Digital signal processing; Frequency; Impedance measurement; Microprocessors; Signal design; Voltage;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.368079

Filename

368079