EP 0980530 A1 20000223 - MEASUREMENT OF MICROWAVE RADIATION
Title (en)
MEASUREMENT OF MICROWAVE RADIATION
Title (de)
MESSUNG VON MIKROWELLENSTRAHLUNG
Title (fr)
MESURE DE RAYONNEMENT MICRO-ONDES
Publication
Application
Priority
- GB 9801333 W 19980508
- GB 9709299 A 19970509
Abstract (en)
[origin: GB2325053A] A microwave radiation pulse measuring device comprises calorimetric means 2 and a frequency selective filter 3. The filter 3 being arranged between the calorimetric means 2 and the source of the microwave radiation 1. The calorimetric means may comprise a reservoir of ethanol which absorbs the filtered microwave energy and expands up a capillary tube 5 such that the level of the ethanol within the capillary indicates the level of microwave energy absorbed. The level of the liquid in the capillary may be measured using a capacitive arrangement. The frequency selective filter may comprise a dielectric layer on which is formed an array of conductive elements. Two such layers may be arranged such that they may be moved relative to one another to adjust the frequency of the filter.
IPC 1-7
IPC 8 full level
G01R 21/02 (2006.01); G01R 21/04 (2006.01); G01R 29/08 (2006.01); G01R 31/28 (2006.01)
CPC (source: EP)
G01R 21/02 (2013.01); G01R 31/2822 (2013.01)
Citation (search report)
See references of WO 9852058A1
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
GB 2325053 A 19981111; GB 9709299 D0 19970625; CA 2288860 A1 19981119; EP 0980530 A1 20000223; JP 2000513106 A 20001003; NO 995463 D0 19991108; NO 995463 L 20000110; WO 9852058 A1 19981119
DOCDB simple family (application)
GB 9709299 A 19970509; CA 2288860 A 19980508; EP 98920659 A 19980508; GB 9801333 W 19980508; JP 54890298 A 19980508; NO 995463 A 19991108