Measuring and testing – Vibration – By mechanical waves
Patent
1990-05-31
1993-02-23
Arana, Louis
Measuring and testing
Vibration
By mechanical waves
G01N 924, G08B 1902
Patent
active
051879808
ABSTRACT:
A method and apparatus for sensing a liquid-solid phase transition event is provided which comprises an acoustic plate mode detecting element placed in contact with a liquid or solid material which generates a high-frequency acoustic wave that is attenuated to an extent based on the physical state of the material is contact with the detecting element. The attenuation caused by the material in contact with the acoustic plate mode detecting element is used to determine the physical state of the material being detected. The method and device are particularly suited for detecting conditions such as the icing and deicing of wings of an aircraft. In another aspect of the present invention, a method is provided wherein the adhesion of a solid material to the detecting element can be measured using the apparatus of the invention.
REFERENCES:
patent: 3341835 (1967-09-01), Werner et al.
patent: 3706981 (1972-12-01), Hart
patent: 4054255 (1977-10-01), Magenheim
patent: 4335613 (1982-06-01), Luukkala
patent: 4378168 (1983-03-01), Kuisma et al.
patent: 4404852 (1983-09-01), Goto
patent: 4461178 (1984-07-01), Chamuel
patent: 4532806 (1985-08-01), Bruchmuller
patent: 4568922 (1986-02-01), Schwippert et al.
patent: 4604612 (1986-08-01), Watkins et al.
patent: 4611492 (1986-09-01), Koosmann
patent: 4628736 (1986-12-01), Kirby et al.
A. Ricco et al., "Acoustic Wave Viscosity Sensor", Applied Physics Letters, vol. 50, No. 21, May 25, 1987, pp. 1474-1476.
T. Nimeczyk et al., "Acoustoelectric Interaction of Plate Modes With Solutions", Journal of Applied Physics, vol. 64, No. 10, Part 1, Nov. 15, 1988, pp. 5002-5008.
S. Martin et al., "Sensing In Liquids With SH Plate Mode Devices" Proceedings of the 1988 IEEE Ultrasonics Symposium, vol. I, 1988, pp. 607-611.
Blair Dianna S.
Freye Gregory C.
Hughes Robert C.
Martin Stephen J.
Ricco Antonio J.
Arana Louis
Chafin James H.
Daniel Anne D.
Moser William R.
The United States of America as represented by the United States
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