LINE-ORIENTED SPECTRUM EVALUATION FOR SENSOR SNR ESTIMATION

Authors
Citation
A. Breitenbach, LINE-ORIENTED SPECTRUM EVALUATION FOR SENSOR SNR ESTIMATION, IEEE transactions on instrumentation and measurement, 47(1), 1998, pp. 256-259
Citations number
10
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
ISSN journal
00189456
Volume
47
Issue
1
Year of publication
1998
Pages
256 - 259
Database
ISI
SICI code
0018-9456(1998)47:1<256:LSEFSS>2.0.ZU;2-F
Abstract
When the dynamic performance of sensors has to be evaluated, the signa l-to-noise ratio (SNR) is a useful figure of merit. A method for estim ating the SNR of an analog sensor is proposed bg which the sensor is s timulated sinusoidally, and its output sampled. It is then subjected t o a digital fourier transform (DFT), and the resulting spectrum analyz ed to obtain the sensor's SNR value. This line-oriented evaluation sch eme provides detailed information on the sensor output. A low-noise ex perimental setup for coherently testing displacement sensors is also d escribed.