Random vibrations testing device

Details Random vibrations testing device Random vibrations testing device

1982-11-05

1985-01-15

Gill, James J.

Measuring and testing

Vibration

Vibrator

G01M 700

Patent

active

044932138

ABSTRACT:
A random vibrations testing device comprising a noise generator the output whereof is connected to an input of a wide-band filter. An output of the wide-band filter is connected directly and through paralleled narrow-band in-phase signal shaping channels to a means for shaping dips and spikes in the spectrum of a signal being shaped, which is electrically coupled with narrow-band opposite-phase signal shaping channels. The means for shaping the spikes and dips in the shaped signal spectrum is devised in the form of an adder series-connected to the wide-band filter, used commonly by all the narrow-band in-phase signal shaping channels and serving to form spikes in the shaped signal spectrum, and adders also series-connected to said wide-band filter, used individually by each opposite-phase narrow-band signal shaping channel and serving to form dips in the shaped signal spectrum.

REFERENCES:
patent: 3316491 (1967-04-01), Berman et al.
patent: 3323068 (1967-05-01), Woods
patent: 3404561 (1968-10-01), Ratz
Bozhko A. Ye and Uretsky Ya. S., "Random Vibrations Spectrum Forming Systems", 1979, p. 62, FIG. 17.
Kliuev V. V., "Devices and Systems for Measurements of Vibration, Noise and Impacts", 1978, p. 317.

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