Method for analysing regularly recurring mechanical vibrations

Details Method for analysing regularly recurring mechanical vibrations Method for analysing regularly recurring mechanical vibrations

1995-11-21

1997-12-16

Williams, Hezron E.

Measuring and testing

Vibration

Sensing apparatus

73660, 73602, 73593, 364508, G01M 700, G01M 1300

Patent

active

056987889

ABSTRACT:
A method for analysing regularly recurring mechanical vibrations comprises the steps of plotting an amplitude/time spectrum associated with the vibrations, dividing the amplitude/time spectrum into time intervals shorter than the shortest time lapse between two consecutive excitations, subjecting those parts of the amplitude/time spectrum defined by each time interval to a Fourier transformation in order to obtain an amplitude/vibration-frequency interval spectrum associated with each time interval, and subjecting those amplitudes in each amplitude/vibration frequency interval spectrum associated with certain vibration frequencies to a Fourier transformation in order to obtain an excitation-frequency spectrum associated with the respective vibration frequency.

REFERENCES:
patent: 3345864 (1967-10-01), Painter et al.
patent: 4322976 (1982-04-01), Sisson et al.
patent: 4380172 (1983-04-01), Imam et al.
patent: 4425798 (1984-01-01), Nagai et al.
patent: 4429578 (1984-02-01), Darrel et al.
patent: 5150618 (1992-09-01), Bambara
patent: 5469745 (1995-11-01), Twerdochlib
patent: 5501105 (1996-03-01), Hernandez et al.
patent: 5511422 (1996-04-01), Hernandez
By E. Dorken et al. "Conditioned constant-Q spectra for improved frequency tracking in the presence of interfering signals", Journal of the Acoustical Society of America, vol. 95, No. 4, Apr. 1994, pp. 2059-2067.
By T. Usagawa et al., "Analysis of a moving sound source--compensation of the doppler effect", ICASSP 86 (International Conference on Acoustics, Speech, and Signal Processing), vol. 2, Apr. 1986, pp. 1361-1364.

Affiliated with

Also associated with

Rating

Method for analysing regularly recurring mechanical vibrations does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for analysing regularly recurring mechanical vibrations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for analysing regularly recurring mechanical vibrations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-208502