PT105426A - TEMPERATURE SENSOR AND / OR MICROWAVE RADIATION INTENSITY BASED ON BRAGG NETWORKS IN OPTICAL FIBER - Google Patents

TEMPERATURE SENSOR AND / OR MICROWAVE RADIATION INTENSITY BASED ON BRAGG NETWORKS IN OPTICAL FIBER Download PDF

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Publication number
PT105426A
PT105426A PT10542610A PT10542610A PT105426A PT 105426 A PT105426 A PT 105426A PT 10542610 A PT10542610 A PT 10542610A PT 10542610 A PT10542610 A PT 10542610A PT 105426 A PT105426 A PT 105426A
Authority
PT
Portugal
Prior art keywords
optical fiber
microwave radiation
temperature sensor
radiation intensity
sensor
Prior art date
Application number
PT10542610A
Other languages
Portuguese (pt)
Inventor
Nogueira Rogerio Nunes
Lemos Pinto Joao De
Lima Hugo Filipe Teixeira
Original Assignee
Univ Aveiro
Inst De Telecomunicacoes
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Aveiro, Inst De Telecomunicacoes filed Critical Univ Aveiro
Priority to PT10542610A priority Critical patent/PT105426A/en
Priority to PCT/IB2010/055748 priority patent/WO2012076936A2/en
Publication of PT105426A publication Critical patent/PT105426A/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
    • G01K11/3206—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres at discrete locations in the fibre, e.g. using Bragg scattering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G01K1/026—Means for indicating or recording specially adapted for thermometers arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K2213/00—Temperature mapping

Abstract

A INVENÇÃO APRESENTADA NESTE TEXTO REFERE-SE A UM SENSOR DE FIBRA ÓPTICA PARA MEDIÇÃO DA TEMPERATURA E/OU DA INTENSIDADE DO CAMPO ELECTROMAGNÉTICO USANDO UMA REDE DE BRAGG (2) EM FIBRA ÓPTICA (1) ASSOCIADA A UM MATERIAL SENSÍVEL À RADIAÇÃO MICROONDAS (3). ESTE SENSOR OBTÉM-SE ASSOCIANDO A UMA FIBRA ÓPTICA (1), NA REGIÃO ONDE SE ENCONTRA GRAVADA A REDE DE BRAGG (2), UM MATERIAL (3) QUE, AO ABSORVER RADIAÇÃO NA GAMA DAS MICROONDAS, AUMENTE A SUA TEMPERATURA, VARIE AS SUAS DIMENSÕES, OU AMBOS. O PRESENTE SENSOR PERMITE A MEDIÇÃO QUANTITATIVA E MAPEAMENTO, EM TEMPO REAL E DE FORMA PRECISA, DE TEMPERATURAS E/OU INTENSIDADES DE RADIAÇÃO MICROONDAS EM AMBIENTES DE ELEVADO RUÍDO ELECTROMAGNÉTICO, BENEFICIANDO AINDA DAS RESTANTES VANTAGENS DA UTILIZAÇÃO DE FIBRAS ÓPTICAS, TAIS COMO AS SUAS REDUZIDAS DIMENSÕES E ELEVADA FLEXIBILIDADE.The invention presented in this text refers to an optical fiber sensor for measuring the temperature and / or intensity of the electromagnetic field using a BRAGG network (2) in optical fiber (1) associated with a material susceptible to microwave irradiation (3 ). THIS SENSOR IS OBTAINED BY ASSOCIATING AN OPTICAL FIBER (1), IN THE REGION WHERE THE BRAGG NETWORK (2) IS RECORDED, A MATERIAL (3) WHICH, WHEN ABSORBING RADIATION IN THE MICROWAVE RANGE, INCREASES ITS TEMPERATURE, VARIE AS ITS DIMENSIONS, OR BOTH. THE PRESENT SENSOR PERMITS QUANTITATIVE MEASUREMENT AND MAPPING, IN REAL TIME AND ACCURACY, OF TEMPERATURES AND / OR MICROWAVE RADIATION INTENSITIES IN HIGH ELECTROMAGNETIC NOISE ENVIRONMENTS, BENEFITING ALONG THE REMAINING ADVANTAGES OF THE USE OF OPTICAL FIBERS, SUCH AS THEIR REDUCTIONS DIMENSIONS AND HIGH FLEXIBILITY.

Description

Na figura 1 é descrito uma possivel implementação do sensor.Figure 1 shows a possible implementation of the sensor.

Este compreende uma fibra óptica (1) na qual se encontra gravada uma rede de Bragg (3), e que está revestida por um material que absorve radiação na gama das microondas, alterando a sua temperatura e dimensões.It comprises an optical fiber (1) on which is engraved a Bragg lattice (3), and which is coated by a material which absorbs radiation in the microwave range, changing its temperature and dimensions.

Lisboa, 28 de Outubro de 2011Lisbon, October 28, 2011

Claims (4)

REIVINDICAÇÕES 1. Dispositivo sensor de temperatura e/ou intensidade de radiação microondas, caracterizado por utilizar uma rede de Bragg (2) inscrita numa fibra óptica (1) associada a um material absorvente da radiação microondas (3), para transduzir a intensidade da radiação microondas num desvio de comprimento de onda de Bragg.A temperature sensor and / or microwave radiation intensity device, characterized in that it uses a Bragg network (2) inscribed in an optical fiber (1) associated with a material absorbing the microwave radiation (3), in order to transduce the intensity of the radiation microwaves at a wavelength deviation of Bragg. 2. Dispositivo de acordo com a reivindicação anterior caracterizado por o referido material sensivel à radiação microondas poder variar a sua temperatura, as suas dimensões, ou ambas, na presença de radiação de microondas.Device according to the preceding claim, characterized in that said microwave radiation sensitive material can vary its temperature, its dimensions, or both, in the presence of microwave radiation. 3. Dispositivo de acordo com qualquer uma das reivindicações anteriores, caracterizado por compreender: a. um ou mais dispositivos conforme qualquer uma das reivindicações anteriores; b. um ou mais troços interligados de fibra óptica; e c. um ou mais tipos de fibra óptica.Device according to any one of the preceding claims, characterized in that it comprises: a. one or more devices according to any one of the preceding claims; B. one or more interconnected sections of optical fiber; and c. one or more types of optical fiber. 4. Método de medida da distribuição espacial de temperaturas e/ou intensidade de radiação microondas caracterizado por utilizar vários dispositivos sensores de acordo com as reivindicações anteriores associados em série, em paralelo, ou uma combinação de ambos. Lisboa, 28 de Outubro de 2011 1A method of measuring the spatial distribution of temperatures and / or microwave radiation intensity characterized by using a plurality of sensor devices according to the preceding claims in series, in parallel, or a combination thereof. Lisbon, October 28, 2011 1
PT10542610A 2010-12-10 2010-12-10 TEMPERATURE SENSOR AND / OR MICROWAVE RADIATION INTENSITY BASED ON BRAGG NETWORKS IN OPTICAL FIBER PT105426A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PT10542610A PT105426A (en) 2010-12-10 2010-12-10 TEMPERATURE SENSOR AND / OR MICROWAVE RADIATION INTENSITY BASED ON BRAGG NETWORKS IN OPTICAL FIBER
PCT/IB2010/055748 WO2012076936A2 (en) 2010-12-10 2010-12-10 Temperature and/or microwave radiation intensity detector based on optical fibre bragg gratings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PT10542610A PT105426A (en) 2010-12-10 2010-12-10 TEMPERATURE SENSOR AND / OR MICROWAVE RADIATION INTENSITY BASED ON BRAGG NETWORKS IN OPTICAL FIBER

Publications (1)

Publication Number Publication Date
PT105426A true PT105426A (en) 2012-06-11

Family

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Family Applications (1)

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PT10542610A PT105426A (en) 2010-12-10 2010-12-10 TEMPERATURE SENSOR AND / OR MICROWAVE RADIATION INTENSITY BASED ON BRAGG NETWORKS IN OPTICAL FIBER

Country Status (2)

Country Link
PT (1) PT105426A (en)
WO (1) WO2012076936A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113280945A (en) * 2021-05-19 2021-08-20 中国海洋大学 Millimeter-scale sea water skin temperature profile detector based on microwave photons

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CO2020015307A1 (en) * 2020-12-07 2021-03-08 Univ Pontificia Bolivariana In-line passive sensing microwave heating device and system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753116A (en) 1970-10-20 1973-08-14 California Inst Of Techn Pocket size microwave radiation hazard detector
US4044303A (en) 1975-11-10 1977-08-23 John Reindel Microwave radiation detector
US4253092A (en) 1979-04-19 1981-02-24 Connah John F Jun Microwave leakage detector
US4338595A (en) 1980-09-09 1982-07-06 Microwave Radiation Dector Corporation Microwave leakage detector
DE102006025700B4 (en) * 2006-06-01 2009-04-16 Siemens Ag Optical measuring device for temperature determination in a cryogenic environment and temperature-controllable winding arrangement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113280945A (en) * 2021-05-19 2021-08-20 中国海洋大学 Millimeter-scale sea water skin temperature profile detector based on microwave photons

Also Published As

Publication number Publication date
WO2012076936A2 (en) 2012-06-14
WO2012076936A3 (en) 2012-11-01

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Legal Events

Date Code Title Description
BB1A Laying open of patent application

Effective date: 20111227

PC3A Transfer or assignment

Owner name: UNIVERSIDADE DE AVEIRO, PT

Effective date: 20120323

Owner name: INSTITUTO DE TELECOMUNICACOES, PT

Effective date: 20120323