Radiant energy – Geological testing or irradiation – Well testing apparatus and methods
Reexamination Certificate
2011-04-18
2011-12-06
Gaworecki, Mark R (Department: 2884)
Radiant energy
Geological testing or irradiation
Well testing apparatus and methods
C250S390050, C250S390060
Reexamination Certificate
active
08071937
ABSTRACT:
The subject matter described herein includes methods, systems, and computer program products for measuring the density of a material. According to one aspect, a material property gauge includes a nuclear density gauge for measuring the density of a material. The nuclear density gauge includes a radiation source adapted to emit radiation into a material and a radiation detector operable to produce a signal representing the detected radiation. A first material property calculation function is configured to calculate a value associated with the density of the material based upon the signal produced by the radiation detector. The material property gauge further includes an electromagnetic moisture property gauge configured to determine a moisture property of the material. The electromagnetic moisture property gauge includes an electromagnetic field generator configured to generate an electromagnetic field where the electromagnetic field sweeps through one or more frequencies and penetrates into the material. The material includes at least one of a pavement material, aggregate base material, concrete, and a soil material. An electromagnetic sensor is configured to determine a frequency response of the material to the electromagnetic field across the one or more frequencies. A second material property calculation function is configured to correlate the frequency response to a moisture property of the material and to calculate a value representing the moisture property. The material property gauge further includes a third material property calculation function configured to determine a material property of the material based on the value associated with the density of the material and the value representing the moisture property of the material.
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Gaworecki Mark R
Jenkins Wilson Taylor & Hunt, P.A.
Troxler Electronic Laboratories, Inc.
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