Surface condition sensing system

Details Surface condition sensing system Surface condition sensing system

1994-10-17

1996-03-05

Wieder, Kenneth A.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Distributive type parameters

324642, 324647, G01N 2204

Patent

active

054971004

ABSTRACT:
A surface condition sensing system includes a frequency controlled source of electromagnetic power adapted to produce a band of selected frequencies which are directed to a surface under examination. A monitoring circuit compares transmitted and reflected electromagnetic power as a function of frequency from the surface, and generates a plurality of absorption signals representing the difference between the amplitude of the transmitted signal with the corresponding amplitude of the reflected signal. An evaluator circuit generates a surface condition signal representing the results of a comparison between the plurality of absorption signals with known surface models. A control circuit generates a status signal representative of the surface condition. The system can be configured as a road condition sensor or as an aircraft ice detection sensor.

REFERENCES:
patent: 3594775 (1971-07-01), Fox
patent: 3596264 (1971-07-01), Ciemochowski
patent: 3613063 (1971-10-01), Ciemochowski
patent: 3634753 (1972-01-01), Unterberger
patent: 3836846 (1974-09-01), Overall et al.
patent: 3838281 (1974-09-01), Dean et al.
patent: 3873927 (1975-03-01), Overall
patent: 3882381 (1975-05-01), Gregory
patent: 3891979 (1975-06-01), Braun et al.
patent: 3940622 (1976-02-01), Stallabrass et al.
patent: 3976270 (1976-08-01), Catchpole
patent: 4051466 (1977-09-01), Protze
patent: 4054255 (1977-10-01), Magenheim
patent: 4327286 (1982-04-01), Thoma
patent: 4333004 (1982-06-01), Forgue et al.
patent: 4335613 (1982-06-01), Luukkala
patent: 4379227 (1983-04-01), Kovacs
patent: 4461178 (1984-07-01), Chamuel
patent: 4470123 (1984-09-01), Magenheim et al.
patent: 4570881 (1986-02-01), Lustenberger
patent: 4604612 (1986-08-01), Watkins et al.
patent: 4649713 (1987-03-01), Bezek
patent: 4745803 (1988-05-01), Haavasoja
patent: 4766369 (1988-08-01), Weinstein
patent: 4775118 (1988-10-01), Daniels
patent: 4797660 (1989-01-01), Rein, Jr.
patent: 4805070 (1989-02-01), Koontz et al.
patent: 4808824 (1989-02-01), Sinnar
patent: 4831493 (1989-05-01), Wilson et al.
patent: 4851817 (1989-07-01), Brossia et al.
patent: 4873510 (1989-10-01), Khurgin
patent: 4882574 (1989-11-01), Khurgin
patent: 4936060 (1990-06-01), Gelinas et al.
patent: 4980673 (1990-12-01), Kleven
patent: 4996493 (1991-02-01), Monat et al.
patent: 5005005 (1991-04-01), Brossia et al.
patent: 5040411 (1991-08-01), Medzius
patent: 5095754 (1992-03-01), Hsu et al.
patent: 5134380 (1992-07-01), Jonas
patent: 5180122 (1993-01-01), Christian et al.
patent: 5188426 (1993-02-01), Stolarczyk et al.
patent: 5191791 (1993-03-01), Gerardi et al.
patent: 5384543 (1995-01-01), Bible et al.
"Contactless determination of the properties of water films on roads", Hertl et al., Journal of Physics and Scientific Instruments, 21(10), Oct. 1988, pp. 955-958.
"Discrimination of Ice from Water in Clouds by Optical Remote Sensing", Pilewskie et al., Atmospheric Research, 21(1987), pp. 113-122.
"Microwave Ice Thickness Sensor", by Werner Koppl, Dept. Staff Scientist, Martin Marietta Corporation, Denver, Colorado, pp. 146-147. Wednesday, May 19, 1971 (0950-1230) ESL--The Engineering Societies Library, New York, NY.

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