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  Home > JCE Print > Journal of Chemical Education > Issues > 1998  > June  >
Research: Science and Education
Topics in Chemical Instrumentation
A Standardized Approach to Collecting and Calculating Noise Amplitude Spectra
Norman N. Sesi, Mathew W. Borer, Timothy K. Starn, and Gary M. Hieftje
Indiana University, Department of Chemistry, Bloomington, IN 47405
Cover
June 1998
Vol. 75 No. 6
p. 788
Abstract
A standardized approach to acquire, calculate, and display noise spectra is proposed. The method is based on normalizing the noise amplitude spectrum to the average dc level of the input signal. This normalization procedure should allow noise spectra, obtained in different laboratories or from different sources, to be compared both quantitatively and qualitatively. A review of the proper techniques to acquire and compute noise spectra is also given.
More Information
*  Citation
 Sesi, Norman N.; Borer, Mathew W.; Starn, Timothy K.; Hieftje, Gary M. J. Chem. Educ. 1998 75 788.
*  Keywords
 Quantitative Analysis, Laboratory Equipment/Apparatus
*  History
 Created:
Last Updated:		 June 23, 1999
June 24, 2005
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