Anot159

Bibliografické údaje:
POŠTA, J. - PAVLÍČEK, R.: Sample rate selection for oscilloscopic diagnostics of alternator and starter. In: Research in Agricultural engineering, Czech Academy of Agricultural Scienses, Institute of Agricultural and Food Information, Prague 2002, Volume 48, 2/2002, s. 73 - 77, ISSN 1212-9151

Abstract:
The selection of the sample rate is essential for oscilloscopic measurements of dynamic quantities. Too low sample rate may distort the measured signal’s waveform and in consequence even result in mistakes. Too high sample rate may increase the information noise level and thereby decrease the measurement sensitivity for certain purpose. Using high sample rate leads to rapid increase of data volumes and oscilloscope’s memory requirements, or shortens the possible lenght of the measured waveform. For every dynamic process measurement, where an oscilloscope is put to use, it is necessary to determine the optimal sample rate (sample rate span). This paper focuses on general principles for the optimal sample rate selection.

Klíčová slova:
diagnostics, oscilloscope, sample rate, alternator, starter