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American Journal of Physics -- September 2005 -- Volume 73, Issue 9, pp. 871

Padé–Laplace analysis of signal averaged voltage decays obtained from a simple circuit

Edward H. Hellen

Department of Physics and Astronomy, University of North Carolina at Greensboro, Greensboro, North Carolina 27402

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The Padé–Laplace method is an interesting yet relatively unknown method for determining the exponential time constants in a decaying signal. We apply it to data from a simple electronic circuit specifically designed for investigations of signal averaging. Possible decays of the voltage include single, multi-exponential, and predominantly logarithmic. Students in our computer-interfacing course write a LABVIEW program that collects the data and performs the signal averaging. © 2005 American Association of Physics Teachers.

© 2005 American Association of Physics Teachers

KEYWORDS and PACS

Keywords

physics education, teaching, networks (circuits), RC circuits, circuit analysis computing, computer aided instruction, curve fitting, physics computing

PACS

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History
Received Dec 2004
Accepted Apr 2005
Online Aug 2005

PUBLICATION DATA

ISSN

0002-9505 (print)  

Publisher

$abstract.society.value is a Member of CrossRef American Association of Physics Teachers

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1119/1.1927551

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