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Electromagnetic Radiation Pattern Imaging

IP.com Disclosure Number: IPCOM000041079D
Original Publication Date: 1987-Jul-01
Included in the Prior Art Database: 2005-Feb-02
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Calabrese, GM: AUTHOR [+3]

Abstract

Ferrite materials are known to be excellent absorbers of electro- magnetic radiation in which absorption of such energy is converted to thermal energy. A pattern of such thermal energy, and hence that of the electro-magnetic radiation, can be detected by thermography or the use of multiple thermocouples.

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Electromagnetic Radiation Pattern Imaging

Ferrite materials are known to be excellent absorbers of electro- magnetic radiation in which absorption of such energy is converted to thermal energy. A pattern of such thermal energy, and hence that of the electro-magnetic radiation, can be detected by thermography or the use of multiple thermocouples.

As shown in Fig. 1, a rectangular plate 1 of ferrite material is positioned to receive the electro-magnetic radiation. Plate 1 converts the radiation to thermal energy which heats up plate 1 in local areas to different temperatures. A thermographic camera 2 is used to record the pattern of thermal gradients and thereby can be used to image the electro-magnetic radiation.

In Fig. 2, a ceramic plate 4 has a plurality of cylindrical slugs 5 of ferrite material embedded therein. Plate 4 is exposed to the radiation. Slugs 5 are connected by thermocouple wires 6 to a data logger 7 the output of which is fed to a computer 8. The scanning of the various thermocouples to sense the temperatures of the ferrite slugs 5 can be used to indicate the pattern of the radiation.

Disclosed anonymously.

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