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    Wyświetlanie 1-5 z 5
    Tytuł:
    Optical Fibre Current Sensor for Electric Power Industry
    Autorzy:
    Barczak, K.
    Pustelny, T.
    Dorosz, D.
    Dorosz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1506714.pdf
    Data publikacji:
    2010-12
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.70.-a
    42.81.-i
    42.79.Pw
    78.20.Ls
    Opis:
    The paper deals with the optical fibre current sensor based on new optical fibre made of glass with a high value of refractive index. This kind of glass was developed to meet the requirements of these optical fibres. The aim of investigations was to develop a new optical fibre with adequate magneto-optical properties and a relatively weak linear birefringence resulting from the process of its production. These features are of essential importance for optical fibre current sensors. The results of investigations concerning such optical fibres have been presented, displaying satisfactory magneto-optical properties, as well as only low linear birefringence induced by stresses arising in the course of their manufacturing.
    Źródło:
    Acta Physica Polonica A; 2010, 118, 6; 1087-1089
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New Optical Glasses with High Refractive Indices for Applications in Optical Current Sensors
    Autorzy:
    Barczak, K.
    Pustelny, T.
    Dorosz, D.
    Dorosz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1795777.pdf
    Data publikacji:
    2009-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.70.-a
    42.81.-i
    42.79.Pw
    78.20.Ls
    Opis:
    The paper concentrates on the optical fibre sensors of electric current intensity. The specially elaborated glasses with high values of refractive indices were investigated in the prepared testing stand. The glasses have possessed the refractive index values n in the range 1.6 ≤ n ≤ 2.2. For the glasses the values of the Verdet constants for two waveguides: $λ_1$ = 635 nm and $λ_2$ = 1550 nm were determined. The obtained results showed that the elaborated on the base of new glasses optical fibres are much more sensitive on the action of magnetic field than the silica fibres.
    Źródło:
    Acta Physica Polonica A; 2009, 116, 3; 247-249
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The New Sensing Fibre for Application in Optical Fibre Current Sensor
    Autorzy:
    Barczak, K.
    Pustelny, T.
    Dorosz, D.
    Dorosz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1811528.pdf
    Data publikacji:
    2008-12
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    78.20.Ls
    42.81.Gs
    42.81.Pa
    42.81.Qb
    Opis:
    The present paper deals with investigations concerning optical fibre current sensors. They are mainly applied in measurements of the intensity of the electric current in the power lines as so-called optical transformers of the electrical current. The most important advantages of fibre current sensors are: safety of service, insulating power as well as their insensitiveness to electromagnetic interference. The investigations were concentrated on designing of adequate sensing fibre, and particularly on the choice of an adequate kind of glass, of which this fibre could be made. Besides, also the head of the fibre current sensor was designed, basing on the suggested and produced sensing fibre. The paper presents the results of magneto-optic tests of the glass and the sensing fibre.
    Źródło:
    Acta Physica Polonica A; 2008, 114, 6A; A-3-A-6
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optical Sensor of the Magnetic Field in Electrical Power Engineering
    Autorzy:
    Barczak, K.
    Pustelny, T.
    Zycki, Z.
    Blazejczyk, T.
    Dorosz, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/1506720.pdf
    Data publikacji:
    2010-12
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.70.-a
    42.81.-i
    42.79.Pw
    78.20.Ls
    Opis:
    The authors of the presented paper deal with investigations concerning applications of the optical fiber sensor of the magnetic field in electric DC engines with permanent magnets. The aim of the sensor is to measure the state of magnetization of permanent magnets (basing on the measurements of magnetic field induction). The knowledge of the state of magnetization helps to decide whether permanent magnets need to be additionally magnetized in order to prevent damages of the whole engine. This can be done automatically, even when the engine is running. For the purpose the Faraday magnetooptic effect is used. The presented investigations concern an optical fiber sensor of the magnetic field provided with a glass rod characterized a high value of the Verdet constant as the sensing element. Thanks to the application of optical fibers the connection of the sensor head with the whole measuring system is constructed of insulating material without using of electrical connections.
    Źródło:
    Acta Physica Polonica A; 2010, 118, 6; 1090-1092
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optical Fibre Magnetic Field Sensors for Monitoring οf the State of Work of Electric Motors
    Autorzy:
    Barczak, K.
    Pustelny, T.
    Zycki, Z.
    Blazejczyk, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1795778.pdf
    Data publikacji:
    2009-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.70.-a
    42.79.Hp
    42.81.-i
    42.79.Pw
    78.20.Ls
    Opis:
    The present paper deals with investigations concerning optical magnetic sensors. The most important advantage of sensors of this kind is their safety of service and insulating power. The insensitiveness of optical sensors to electromagnetic interference was discussed and experimentally investigated. The experimental investigations were concentrated on the adequate sensing fibre as well as on the sensor based on the bulk glass cylinder. The paper presents the results of magnetooptic tests of the elaborated magnetic field optical sensors and conclusions arise from them.
    Źródło:
    Acta Physica Polonica A; 2009, 116, 3; 250-253
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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