Random vibrations testing device

In order to provide spikes and dips in the frequency response of a random vibrations testing device comprising a noise generator (1), the output thereof is connected to an input of a wide-band filter (2). An output of the wide-band filter (2) is connected directly and through paralleled narrow-band...

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Bibliographische Detailangaben
Hauptverfasser:	YAN SEMENOVICH URETSKY, VIKTOR GEORGIEVICH RYGALIN, VIKTOR ALEXANDROVICH KLOCHKO, RAVIL VASILIEVICH MNEKIN, DMITRY ALEXEEVICH GRECHINSKY
Format:	Patent
Sprache:	eng
Schlagworte:	MEASURING PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:	In order to provide spikes and dips in the frequency response of a random vibrations testing device comprising a noise generator (1), the output thereof is connected to an input of a wide-band filter (2). An output of the wide-band filter (2) is connected directly and through paralleled narrow-band in- phase signal shaping channels to a means (3) serving to shape spikes and dips in a shaped signal spectrum and coupled electrically with narrow-band opposite-phase signal shaping channels. The means (3) for shaping spikes and dips in the shaped signal spectrum is devised in the form of an adder (12) connected in series to the wide-band filter (2), used by all the narrow-band in-phase signal shaping channel and serving to shape spikes in the shaped signal spectrum, and adders (13) also series-connected to the above- mentioned wide-band filter, used individually by each narrow-band opposite-phase signal shaping channel and serving to shape dips in the shaped signal spectrum.