Autor: Jędrzejewska, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Improved Methods of Signal Processing Used in Low-Coherent Systems
Autorzy:: Jedrzejewska-Szczerska, M.
Powiązania:: https://bibliotekanauki.pl/articles/1811551.pdf
Data publikacji:: 2008-12
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.79.-e
42.81.Pa
Opis:: In this article the author presents improved techniques of signal processing used in low-coherent measurement systems. The author proposes to utilize the synthesized sources in the system with the temporal signal processing. It will be shown that the exploit of such a source can substantially reduce the signal-to-noise ratio required to identify the central fringe position. In case of using spectral signal processing, the author proposes to control the position of maximum in the spectral pattern which modifies the phase difference between interfering beams. The results of experimental works will show that described techniques can be an effective method for improving the signal processing in low-coherent measurement systems.
Źródło:: Acta Physica Polonica A; 2008, 114, 6A; A-127-A-131
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Optical Investigation of Hematocrit Level in Human Blood
Autorzy:: Jedrzejewska-Szczerska, M.
Gnyba, M.
Powiązania:: https://bibliotekanauki.pl/articles/1493214.pdf
Data publikacji:: 2011-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.79.-e
42.81.Pa
Opis:: In this paper use of selected optical methods of a hematocrit measurement has been presented. Elaborated methods have numerous advantages: relatively simple configurations, potentially low cost and high resolution. Investigation confirmed their ability to determine the hematocrit value with appropriate measurement accuracy. Furthermore, simultaneous use of complementary optical methods can substantially increase measurement reliability, because low-coherence interferometric measurement is based on physical (mainly optical) properties of the investigated object, while Raman spectroscopy is based on study of its molecular composition.
Źródło:: Acta Physica Polonica A; 2011, 120, 4; 642-646
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Optimization of a Fabry-Perot Sensing Interferometer Design for an Optical Fiber Sensor of Hematocrit Level
Autorzy:: Wierzba, P.
Jędrzejewska-Szczerska, M.
Powiązania:: https://bibliotekanauki.pl/articles/1399408.pdf
Data publikacji:: 2013-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 07.60.Ly
03.75.Dg
42.81.Pa
07.60.Vg
Opis:: Continuous measurement of the hematocrit level in blood can potentially be performed using optical fibre sensors. The Fabry-Perot interferometric sensors are a promising candidate in this application. The most important step in the design of the sensor is design of the sensing interferometer. Adequate cavity length and high interference contrast are two most important requirements in this application. The design method of the sensing interferometer presented in this paper uses a Gaussian beam approximation. In order to verify the design, an optical fibre Fabry-Perot interferometer with adjustable cavity length was built. Its performance was tested, confirming validity of the design approach.
Źródło:: Acta Physica Polonica A; 2013, 124, 3; 586-588
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Low-Coherence Fibre-Optic Interferometric Sensors
Autorzy:: Jedrzejewska-Szczerska, M.
Gnyba, M.
Kosmowski, B.
Powiązania:: https://bibliotekanauki.pl/articles/1493198.pdf
Data publikacji:: 2011-10
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.79.-e
42.81.Pa
Opis:: In this paper low-coherence fibre-optic sensors based on the Fabry-Perot and Michelson interferometer, which were designed and elaborated at our laboratory, are shown. We present results of investigation of the fibre-optic sensors working in both configurations. These results allowed us to compare properties of sensors working in both configurations. The theoretical analysis and experimental results made us possible to select best construction, which was implemented in low-coherence fibre-optic sensors of refractive index.
Źródło:: Acta Physica Polonica A; 2011, 120, 4; 621-624
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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