Monitoring machinery by detecting vibrations

Details Monitoring machinery by detecting vibrations Monitoring machinery by detecting vibrations

1978-12-15

1981-03-24

Freeh, William L.

Pumps

With signal, indicator, or inspection means

417 68, 73651, F04B 4910, F04B 4900

Patent

active

042577470

ABSTRACT:
A piece of machinery which, in an abnormal operating condition exhibits a vibration frequency characteristic of or peculiar to that condition, is monitored by securing a spring and mass unit to the machinery, the spring and mass unit having a natural frequency equal to said vibration frequency so that upon the occurence of the abnormal condition the magnified vibration of the spring and mass unit can be used to effect a control function or sound an alarm.

REFERENCES:
patent: 2946218 (1960-07-01), Karpchuk
patent: 3095532 (1963-06-01), Floyd
patent: 3195034 (1965-07-01), Bensema
patent: 3232521 (1966-01-01), Deardorff et al.
patent: 3676723 (1972-07-01), Drucker
patent: 4028510 (1977-06-01), Yamaura
patent: 4099667 (1978-07-01), Uchida

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