Filtros de banda de octava, de media octava y de tercios de octava empleados en el análisis de ruidos y de vibraciones.
OCTAVE HALF OCTAVE AND A THIRD OCTAVE BAND FILTERS USED IN NOISES AND VIBRATIONS ANALYSIS.
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17.160 / Vibrations, shock and vibration measurements
29.200 / Rectifiers. Convertors. Stabilized power supply
CTN 209/SC 29 - Electroacoustics
IEC 60225:1966 (Identical)
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