DocumentCode :
1466731
Title :
Automatic vector impedance measurement with minimum hardware
Author :
Wagdy, Mahmoud F.
Author_Institution :
University of Lowel, Department of Electrical Engineering, Lowell, USA
Volume :
58
Issue :
2
fYear :
1988
Firstpage :
63
Lastpage :
66
Abstract :
A computer-based technique for vector impedance measurement is described. An alternating voltage of specified frequency is impressed across a series combination of the unknown impedance Z and a reference resistance R0,; the voltage to ground and the phase angle at the nodal connection are then measured and recorded. Measurements are repeated after interchanging Z and R0, and the magnitude and phase of Z and R0 are automatically calculated. Alternatively, Z and R0 are not interchanged, so that the amount of hardware is reduced at the expense of a software algorithm for determining |Z| and ¿. This trade-off simplifies the design and makes it more cost effective.
Keywords :
automatic test equipment; electric impedance measurement; electrical engineering computing; alternating voltage; automatic vector impedance measurement; computer-based technique; frequency; ground; magnitude; nodal connection; phase angle; reference resistance; software algorithm;
fLanguage :
English
Journal_Title :
Electronic and Radio Engineers, Journal of the Institution of
Publisher :
iet
ISSN :
0267-1689
Type :
jour
DOI :
10.1049/jiere.1988.0010
Filename :
5261589
Link To Document :
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