Vibration analyzer with digital readout

Details Vibration analyzer with digital readout Vibration analyzer with digital readout

1980-07-30

1982-01-26

Kreitman, Stephen A.

Measuring and testing

Vibration

Sensing apparatus

73462, 333 17R, G01H 312, H03H 712

Patent

active

043122329

ABSTRACT:
A system for carrying out vibrational analysis of machinery and the like wherein a voltage controlled filter is combined with a phase-locked feedback loop to detect maximum amplitude within a given frequency band. A simply derived readout of frequency and amplitude is made available with the arrangement and operation over three or more decades of frequency is availed without manual switching and the like.

REFERENCES:
patent: 2976408 (1961-03-01), Colaguori
patent: 3293572 (1966-12-01), Smith
patent: 3475702 (1969-10-01), Ainsworth
patent: 3588752 (1971-06-01), Hirshfield
patent: 3668566 (1972-06-01), Trigg
patent: 4010637 (1977-03-01), Harwell et al.
patent: 4257018 (1981-03-01), Masdea et al.

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