Stolar, Inc.

David L Baldridge

Larry G Stolarczyk

Gerald Lee Stolarczyk

A method for determining the thickness of a layer of material, such as soil, wood, ice or coal, that utilizes a microstrip antenna as a thickness measuring sensor. The sensor is positioned over the layer and a value for a parameter of the antenna such as conductance or resonant frequency is measured. The value is compared to a calibration table of values and the thickness of the layer is determined by interpolation. Alternatively, the value is compared to a control value to initiate a decision process. The decision could be that a layer of ice is building up on a wing of an aircraft or that an explosive device is buried under a layer of soil.

Method for controlling the thickness of a layer of material in a seam

A method of determining the thickness of a layer of material, such as soil, wood, ice or coal, that utilizes a microstrip antenna as a thickness measuring sensor. The sensor is positioned over the layer and a value for a parameter of the antenna such as conductance or resonant frequency is measured. The value is compared to a calibration table of values and the thickness of the layer is determined by interpolation. Alternatively, the value is compared to a control value to initiate a decision process. The decision could be that a layer of ice is building up on a wing of an aircraft or that an explosive device is buried under a layer of soil.

Method and apparatus for measuring the thickness of a layer of geologic

A method for remotely controlling the mechanical functions of a coal cutting machine's electrohydraulic system which utilizes a medium frequency remote control communication system and a coal-rock interface sensor. The coal-rock interface sensor is a shielded resonant horizontal loop antenna.

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Raton, NM, United States of America

David L Baldridge