System for determining FOVM sensor beat frequency

Details System for determining FOVM sensor beat frequency System for determining FOVM sensor beat frequency

1993-06-01

1995-11-28

Chilcot, Richard

Measuring and testing

Vibration

Sensing apparatus

73655, G01N 2900

Patent

active

054697450

ABSTRACT:
A method for determining a beat frequency in a vibration sensing system attached to an electrical generator comprises the steps of (a) generating a vibration signal indicative of a vibrational frequency and amplitude of the generator; and (b) obtaining a beat frequency from the vibration signal by storing and processing time interval data representing the time intervals between zero crossings of the vibration signal. A generator 10, optical vibration sensor 12, and computer 14 constitute the vibration sensing system 16. The computer is programmed to analyze the time interval data to obtain the beat frequency.

REFERENCES:
patent: 4218614 (1978-06-01), Miller
patent: 4283634 (1981-08-01), Yannone et al.
patent: 4321464 (1982-03-01), Miller
patent: 5069071 (1991-12-01), McBrien et al.
patent: 5109700 (1992-05-01), Hicho
patent: 5146776 (1992-09-01), Twerdochlib et al.

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