Method and apparatus for acoustic wave measurement

Details Method and apparatus for acoustic wave measurement Method and apparatus for acoustic wave measurement

1997-07-18

1999-09-21

Chapman, John E.

Measuring and testing

Vibration

Resonance, frequency, or amplitude study

73602, G01N 2904

Patent

active

059556692

ABSTRACT:
An apparatus and a method for acoustic wave measurement according to the present invention are characterized by oscillating a magnetostrictive vibrator with a frequency to emit an acoustic wave to an object to be measured, calculating the amplitude of a signal received by a wave receiver, and repeating the previous steps throughout a range of different frequencies to detect the resonance frequency. The amplitude of the received signal is calculated from values of the signal sampled at an interval of 1/4 of one cycle of the emitted frequency. This reduces the time of the measurement of a thickness a presence of flaws, a presence of impurities and minimizes noises during the measurement.

REFERENCES:
patent: 3938072 (1976-02-01), Baird et al.
patent: 4305294 (1981-12-01), Vasile et al.
patent: 4512194 (1985-04-01), Beuter
patent: 5612495 (1997-03-01), Shimada et al.

Affiliated with

Also associated with

Rating

Method and apparatus for acoustic wave measurement 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 and apparatus for acoustic wave measurement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for acoustic wave measurement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-82212