The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 2019
Filed:
Sep. 16, 2008
David Mark Hull, Adelphi, MD (US);
Gregory Alton Holifield, Eustis, TX (US);
David Mark Hull, Adelphi, MD (US);
Gregory Alton Holifield, Eustis, TX (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A system and method for measuring the complex resistivity of a ground section. One embodiment utilizes stand-off capacity-coupled resistivity (CCR) sensing to inject current into the ground at a frequency within the range of 1 Khz to 1 MHz. A sensor detects the voltage which is used to determine the complex resistively of the ground and, thus, ground content. The system and method permits surveys to be conducted at speeds of 10-20 mph or more. Alternatively, current is injected into the ground along a plasma channel that is enabled with a high energy laser. Alternatively, an alpha particle generator may be used to inject the current. Multiple frequencies may be used within the range of 1 KHz to 1 MHz to produce an impedivity spectroscopy to thereby determine and/or display a map of ground content.