Global patent index - EP 0980530 A1

EP 0980530 A1 2000-02-23 - MEASUREMENT OF MICROWAVE RADIATION

Title (en)

MEASUREMENT OF MICROWAVE RADIATION

Title (de)

MESSUNG VON MIKROWELLENSTRAHLUNG

Title (fr)

MESURE DE RAYONNEMENT MICRO-ONDES

Publication

EP 0980530 A1 (EN)

Application

EP 98920659 A

Priority

  • GB 9801333 W
  • GB 9709299 A

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 (main, further and additional classification)

G01R 22/04; G01R 21/02

IPC 8 full level (invention and additional information)

G01R 21/04 (2006.01); G01R 21/02 (2006.01); G01R 29/08 (2006.01); G01R 31/28 (2006.01)

CPC (invention and additional information)

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

EPO simple patent family

GB 2325053 A 19981111; GB 9709299 D0 19970625; CA 2288860 A1 19981119; EP 0980530 A1 20000223; JP 2000513106 A 20001003; NO 995463 A 20000110; NO 995463 D0 19991108; WO 9852058 A1 19981119

INPADOC legal status

2003-03-05 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20020823

2002-05-29 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20020412

2000-02-23 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991021

2000-02-23 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE ES FR GB IT SE