Jacob K Struck

US Patent:

6407539, Jun 18, 2002

Filed:

Nov 9, 2000

Appl. No.:

09/711689

Inventors:

Jacob K. Struck - Lake Hopatcong NJ
Philip J. Magnotti - Westfield NJ
John C. Jessee - Stanhope NJ
Henry H. Lee - Long Island City NY
George K. Khowong - Fairlawn NJ

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

G01R 3102

US Classification:

324 72

Abstract:

The present invention shows an apparatus and method for the determination of clearances for safety of personnel and safe storage of critical assets within a structure. The method comprises the steps of choosing appropriate test locations on top of the structure, using a test apparatus including a signal generator, a receiver and a computer, injecting low-level test currents at each test locations, measuring the resulting electromagnetic fields; calculating the transfer functions for the structure, and determining the internal energy levels that lightning strikes would cause inside the structure in order to determine a safe stand-off distance for critical assets or personnel within the structure.