Title:
TEMPERATURE AND/OR MICROWAVE RADIATION INTENSITY DETECTOR BASED ON OPTICAL FIBRE BRAGG GRATINGS
Document Type and Number:
WIPO Patent Application WO/2012/076936
Kind Code:
A3
Abstract:
The invention presented in this paper relates to an optical fibre detector for temperature measurement and/or electromagnetic field intensity using a Bragg grating (2) in optical fibre (1), associated with a microwave radiation-sensitive material (3). The detector is obtained associating an optical fibre (1), in the region where the fibre Bragg grating (2) is written on, with a material (3) that, when absorbing radiation in the microwave range, increases in temperature, changes dimensions, or both. This detector allows the precise quantitative measurement and mapping in real time of temperature and/or microwave radiation intensity in high electromagnetic noise environments, while benefiting from the additional advantages of the use of optical fibres, such as small size and high flexibility.
Inventors:
TEIXEIRA LIMA HUGO FILIPE (PT)
NUNES NOGUEIRA ROGERIO (PT)
DE LEMOS PINTO JOAO (PT)
NUNES NOGUEIRA ROGERIO (PT)
DE LEMOS PINTO JOAO (PT)
Application Number:
PCT/IB2010/055748
Publication Date:
November 01, 2012
Filing Date:
December 10, 2010
Export Citation:
Assignee:
UNIV AVEIRO (PT)
INST DE TELECOMUNICACOES (PT)
TEIXEIRA LIMA HUGO FILIPE (PT)
NUNES NOGUEIRA ROGERIO (PT)
DE LEMOS PINTO JOAO (PT)
INST DE TELECOMUNICACOES (PT)
TEIXEIRA LIMA HUGO FILIPE (PT)
NUNES NOGUEIRA ROGERIO (PT)
DE LEMOS PINTO JOAO (PT)
International Classes:
G01K1/02; G01K11/32
Foreign References:
| US20090202194A1 | 2009-08-13 |
Other References:
SAXENA INDU ET AL: "Polymer coated fiber Bragg grating thermometry for microwave hyperthermia", MEDICAL PHYSICS, AIP, MELVILLE, NY, US, vol. 37, no. 9, 10 August 2010 (2010-08-10), pages 4615 - 4619, XP012144934, ISSN: 0094-2405, DOI: 10.1118/1.3463382
PING LU ET AL: "Polymer-Coated Fiber Bragg Grating Sensors for Simultaneous Monitoring of Soluble Analytes and Temperature", IEEE SENSORS JOURNAL, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 9, no. 4, 1 April 2009 (2009-04-01), pages 340 - 345, XP011252310, ISSN: 1530-437X
LAMONTAGNE B ET AL: "Large-area microwave plasma etching of polyimide", JOURNAL OF PHYSICS D. APPLIED PHYSICS, IOP PUBLISHING, BRISTOL, GB, vol. 20, no. 7, 14 July 1987 (1987-07-14), pages 844 - 850, XP020014412, ISSN: 0022-3727, DOI: 10.1088/0022-3727/20/7/005
PING LU ET AL: "Polymer-Coated Fiber Bragg Grating Sensors for Simultaneous Monitoring of Soluble Analytes and Temperature", IEEE SENSORS JOURNAL, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 9, no. 4, 1 April 2009 (2009-04-01), pages 340 - 345, XP011252310, ISSN: 1530-437X
LAMONTAGNE B ET AL: "Large-area microwave plasma etching of polyimide", JOURNAL OF PHYSICS D. APPLIED PHYSICS, IOP PUBLISHING, BRISTOL, GB, vol. 20, no. 7, 14 July 1987 (1987-07-14), pages 844 - 850, XP020014412, ISSN: 0022-3727, DOI: 10.1088/0022-3727/20/7/005
Attorney, Agent or Firm:
VIEIRA PEREIRA FERREIRA, Maria Silvina (Modet & Co.Rua Castilh, 50-9ยบ -163 Lisboa, PT)
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