EP 0855019 A1 19980729 - REMOTE MEASUREMENT OF INTERNAL TEMPERATURES THROUGH MATERIALS PENETRABLE BY MICROWAVE RADIATION
Title (en)
REMOTE MEASUREMENT OF INTERNAL TEMPERATURES THROUGH MATERIALS PENETRABLE BY MICROWAVE RADIATION
Title (de)
FERNMESSUNG VON INNEREN TEMPERATUREN DURCH VON MIKROWELLENSTRAHLUNG DURCHDRINBARE MATERIALEN HINDURCH
Title (fr)
MESURE A DISTANCE DE TEMPERATURES INTERNES A TRAVERS UN MATERIAU PERMEABLE A UN RAYONNEMENT A HYPERFREQUENCE
Publication
Application
Priority
- CA 9600686 W 19961011
- US 54267795 A 19951013
Abstract (en)
[origin: WO9714941A1] A method and an apparatus remotely measures internal temperatures through materials penetrable by microwave radiation. Higher temperature areas for example in high voltage equipment may be detected through procelain clad insulators whereas most detector systems only measure the outside surface. The method comprises selecting a frequency range where the microwave radiation at least partially penetrates the materials, detecting self emitted thermal radiation through the materials for the microwave frequency range in a target beam of a passive receiver, producing signals proportional to the thermal radiation detected in the target beam, remotely scanning the target beam of the passive receiver through a target pattern, comparing the signals for different locations in the target pattern to identify locations emitting higher thermal radiation, and processing the signals to provide an indication of internal temperature for the locations emitting higher thermal radiations.
IPC 1-7
IPC 8 full level
G01K 11/00 (2006.01)
CPC (source: EP)
G01K 11/006 (2013.01)
Citation (search report)
See references of WO 9714941A1
Designated contracting state (EPC)
AT BE CH DE ES FI FR GB IT LI NL SE
DOCDB simple family (publication)
WO 9714941 A1 19970424; AU 2280897 A 19970507; CA 2234584 A1 19970424; CA 2234584 C 20050802; EP 0855019 A1 19980729
DOCDB simple family (application)
CA 9600686 W 19961011; AU 2280897 A 19961011; CA 2234584 A 19961011; EP 96933287 A 19961011