Measuring and testing – Vibration – By mechanical waves
Patent
1980-09-08
1982-08-31
Kreitman, Stephen A.
Measuring and testing
Vibration
By mechanical waves
G01N 2900
Patent
active
043465994
ABSTRACT:
Apparatus for ultrasonically testing polymer materials includes means for measuring the thickness of the specimen and for measuring the mass density of the specimen in situ. Ultrasonic measurements of the specimen are obtained. Then the specimen holder is rotated past the critical angle and new ultrasonic measurements are obtained. From these ultrasonic measurements the storage and loss moduli and attenuation coefficients for the polymer specimen are obtained.
REFERENCES:
patent: 2751783 (1956-06-01), Erdman
patent: 3646806 (1972-03-01), Yamaguchi et al.
patent: 3858437 (1975-01-01), Jarzynski et al.
patent: 3938372 (1976-02-01), Sproule
patent: 4020679 (1977-05-01), Barry
patent: 4279157 (1981-07-01), Schomberg et al.
Gary W. Paddison, "An Ultrasonic Immersion Apparatus for the Determination of High-Frequency Storage and Loss Moduli for Polymers and Polymeric Composites", Ultrasonics Symposium Proceedings, Sep. 1979.
J. R. Asay, D. L. Lamberson, and A. H. Guenther, J. Appl. Phys., 40, 1968, 1969.
J. Williams and J. Lamb, J. Acoustic Soc. Am., 30, 308, (1958).
G. W. Paddison, Polym. Eng. & Sci., 14, 382, (1974).
H. A. Waterman, Kolloid-Zeitschrift and Zeitschrift fur Polymere, 192, 1, (1963).
B. Hartmann and J. Jarzynski, J. Acoust. Soc. Am., 56, 1469, (1974).
B. Hartmann and J. Jarzynski, Naval Ordnance Laboratory TR72-73, 1973.
D. Ensminger, "Ultrasonics - The Low and High-Intensity Applications", p. 38, Marcel Dekker, Inc., New York, (1973).
E. U. Condon and H. Odishaw, "Handbook of Physics", pp. 3-12, McGraw Hill, Inc., New York, (1958).
Z. Ribgi, Appl. Poly. Symposia, 5,1, (1967).
McLaughlin Albert J.
Paddison Gary W.
Armstrong World Industries
Kreitman Stephen A.
LandOfFree
Method and apparatus for ultrasonically testing polymers 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 ultrasonically testing polymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for ultrasonically testing polymers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2179679