Method For Detecting The Presence Of A Ferromagnetic Object

Patent · Tue Nov 21 00:00:00 EST 2000

OSTI ID:879539

Roybal, Lyle G ^[1]

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1. Idaho Falls, ID

A method for detecting a presence or an absence of a ferromagnetic object within a sensing area may comprise the steps of sensing, during a sample time, a magnetic field adjacent the sensing area; producing surveillance data representative of the sensed magnetic field; determining an absolute value difference between a maximum datum and a minimum datum comprising the surveillance data; and determining whether the absolute value difference has a positive or negative sign. The absolute value difference and the corresponding positive or negative sign thereof forms a representative surveillance datum that is indicative of the presence or absence in the sensing area of the ferromagnetic material.

• Research Organization: Idaho National Laboratory (INL), Idaho Falls, ID (United States)
• DOE Contract Number: AC07-76ID01570
• Assignee: Bechtel BWXT Idaho, LLC (Idaho Falls, ID)
• Patent Number(s): US 6,150,810
• Application Number: 09/104854
• OSTI ID: 879539
• Country of Publication: United States
• Language: English