By Topic

Systematic Approach for the Linearization and Readout of Nonsymmetric Impedance Bridges

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

2 Author(s)
de Graaf, G. ; Delft Univ. of Technol. ; Wolffenbuttel, R.F.

This paper presents a general concept for the linearization of impedance bridges with circuit components changing in only one polarity. A feedback loop using a transadmittance amplifier, which is properly designed and matched to the nominal value of the bridge components, reduces nonlinearity from 9% to 0.4% over plusmn20% of bridge imbalance. The method can be applied for dc or ac bridges, and the linearization can conveniently be integrated with the readout circuit, resulting in a highly linear sensor readout. In addition to the linearization of the bridge transfer function itself, the method can be applied for the linearization of a range of transducers with a hyperbolic transfer function

Published in:

Instrumentation and Measurement, IEEE Transactions on  (Volume:55 ,  Issue: 5 )