Measuring and testing – Vibration – By mechanical waves
Patent
1983-08-02
1984-12-11
Birmiel, Howard A.
Measuring and testing
Vibration
By mechanical waves
73633, 73810, G01N 2904
Patent
active
044870698
ABSTRACT:
A method of image display of a specimen by an ultrasonic wave microscope comprising an acoustic wave propagating medium, a piezoelectric member provided at one end of said medium for generating an ultrasonic beam, and an acoustic wave lens formed at an opposite end of said acoustic wave propagating medium and having a predetermined focal point, said method comprising the steps of two-dimensionally scanning a specimen disposed substantially at said focal point by said ultrasonic beam while moving one of said specimen and said beam relative to the other, and applied to said specimen repetitive stress selectively during the scanning of said specimen.
REFERENCES:
patent: 4430897 (1984-02-01), Quate
patent: 4442714 (1984-04-01), Bongianni
Ishikawa Isao
Kanda Hiroshi
Birmiel Howard A.
Hitachi , Ltd.
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