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:
Feb. 26, 2008
Filed:
Apr. 17, 2006
Larry G. Stolarczyk, Raton, NM (US);
Tito Sanchez, Raton, NM (US);
John Myers, Raton, NM (US);
Chance Valentine, Raton, NM (US);
Gerald L. Stolarczyk, Raton, NM (US);
Robert Troublefield, Raton, NM (US);
Igor Bausov, Raton, NM (US);
Laxmi Narayana Botla, Raton, NM (US);
Beaux Beard, Raton, NM (US);
Richard B. Main, Los Altos, CA (US);
Larry G. Stolarczyk, Raton, NM (US);
Tito Sanchez, Raton, NM (US);
John Myers, Raton, NM (US);
Chance Valentine, Raton, NM (US);
Gerald L. Stolarczyk, Raton, NM (US);
Robert Troublefield, Raton, NM (US);
Igor Bausov, Raton, NM (US);
Laxmi Narayana Botla, Raton, NM (US);
Beaux Beard, Raton, NM (US);
Richard B. Main, Los Altos, CA (US);
Other;
Abstract
An aerial electronic system for detection of surface and underground threats comprises an electromagnetic (EM) gradiometer flown aloft over the possible ground and underground threats to a convoy. The EM gradiometer is disposed in a Styrofoam torpedo shaped pod that is towed in flight behind an airplane. An illumination transmitter and loop antenna mounted to the airplane radiate a primary EM wave that travels down to the ground surface and penetrates beneath. Frequencies of 80 KHz to 1 MHz are selected according to whether the targets are laying on the surface or deeply buried. Detonation wire pairs, buried cables and pipes, and other conductors will re-radiate a secondary wave that can be sensed by the EM gradiometer. A reference sample of the transmitter signal is carried down a fiberoptic from the airplane to the towed pod. This signal is used in the synchronous detection to measure the secondary EM wave phase.