By Topic

Efficient Impedance Bridge Analysis

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)

Of concern are the detector voltage and current of an unbalanced impedance bridge for the general case when both the source and detector impedances are finite. A convenient expression for the exact Thevenin impedance seen by the detector is derived. Several examples are given to illustrate the observation that this Thevenin impedance is barely sensitive to the source impedance. Two approximate Thevenin impedances are easily obtained, either by element combination or as limiting forms of the exact Thevenin impedance. They are nearly equal and bracket the actual Thevenin impedance. A conservative error bound is given. Algorithms suitable for programming impedance bridge problems are discussed. Also, for use with hand-held calculators, an approximate method for calculating the detector voltage and current is given. The method is direct, rapid, and accurate; it employs just one approximation¿the Thevenin impedance.

Published in:

Education, IEEE Transactions on  (Volume:23 ,  Issue: 4 )