PL
 |
EN
Preferencje help
Polish version English version Język
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 14

Liczba wyników na stronie
first rewind previous Strona / 1 next fast forward last
Wyniki wyszukiwania
help Sortuj według:

help Ogranicz wyniki do:
first rewind previous Strona / 1 next fast forward last
1
Historia Fizyki na Politechnice Śląskiej
Opilski A.
Zeszyty Naukowe. Matematyka - Fizyka / Politechnika Śląska
|
2004
|
z. 91
71-85
2
Content available remote A new acoustic emission descriptor for modelled sources of partial discharges
Witos F., Gacek Z., Opilski A.
Archives of Acoustics
|
2002
|
Vol. 27, no. 1
65-77
EN
Partial discharges (PD) generated by differently modelled PD sources have been studied by the acoustic emission (AE) method. The results obtained were compared with the measured apparent electric charge values. Acoustic images of the PD phenomena were created by recorded waveforms, phase diagrams, frequency characteristics and calculated amplitude distribution diagrams. Basing on the amplitude distributions, a new AE descriptor --- the ADP descriptor (Amplitude Distribution of Power of AE signal descriptor) was evaluated. The ADP descriptor distinguishes the physical processes connected with the PD. For the described measuring situations, the calculated values of the ADP descriptor show a good correlation of the ADP descriptor values with the value of the apparent electric charge.
3
Content available remote Multimode interference structures : new way of passive elements technology for photonics
Błahut M., Opilski A.
Opto-Electronics Review
|
2001
|
Vol. 9, No. 3
293-300
EN
The aim of this work is presentation of principles of work and properties of multimode interference (MMI) structures and their basic applications in optoelectronic circuits. We discuss the principles of simple, mirrored and multiple images formation paying attention to imaging quality, tolerance, losses, and power division in output signals. On the base of it, MMI applications in integrated optic systems - in splitters and couplers NxM technology, modulators and switches in Mach-Zehnder configuration and multiplexers are considered. The possibility of MMI production in gradient-index wavequides made by ion exchange in glass is also presented.
4
Molecular and Quantum Acoustics in Poland Thirtieth Anniversary ?
Opilski A.
Molecular and Quantum Acoustics
|
2001
|
Vol. 22
183-186
5
Zastosowanie zjawiska propagacji akustycznej fali powierzchniowej w sensorach gazu
Urbańczyk M., Opilski A., Jakubik W.
Elektronika : konstrukcje, technologie, zastosowania
|
2001
|
Vol. 42, nr 3
45-46
PL
Przedstawiono możliwości wykorzystania zjawiska propagacji akustycznej fali powierzchniowej do detekcji gazów. Oddziaływanie określonych zewnętrznych wielkości fizycznych na ośrodek propagacji, w tym na samą powierzchnię, wpływa na warunki graniczne zagadnienia propagacji fali powierzchniowej. W przypadku czujników gazu zaburzenie propagacji (prędkości i tłumienia) zachodzi wskutek zmian właściwości mechanicznych i/lub elektrycznych cienkiej warstwy sensorowej naniesionej na powierzchnię falowodu. Wyniki rozważań teoretycznych potwierdzono badaniami eksperymentalnymi.
EN
Presents theoretical possibilities of application of a SAW in gas sensors. Interaction of external physical quantity on propagation medium, including the surface, can affect SAW propagation. In gas sensors disturbance of SAW propagation is results from change of the mechanical as well as electrical properties of a thin active sensor layer placed on a piezoelectric surface. The experimental results also have been presented.
6
Content available remote Present state and perspectives involving application of ion exchange in glass
Opilski A., Rogoziński R., Gut K., Błachut M., Opilski Z.
Opto-Electronics Review
|
2000
|
Vol. 8, No. 2
117-127
EN
This paper presents recent developments in investigations of glass intregrated optical circuit. Components are realised by the waveguide technologies: single ion exchange, creating of buried strip waveguides, double ion exchange, and doped glass strip waveguides. Moreover, double refraction of glass planar waveguides, equipment and elements on glass planar waveguides and multimode interference structures in the technology of elements of integrated optics and plasmon interaction are illustrated.
7
Surface Plasmon Resonance Liquid Sensor Based on Prism Coupler in the Kretschmann Geometry
Maciak E., Opilski A., Opilski Z.
Molecular and Quantum Acoustics
|
2000
|
Vol. 21
173-178
8
Investigations on Partial Discharges Generated by Modelled Source with a Bushing by Means of Electric and Acoustic Method
Witos F., Gacek Z., Opilski A., Otręba H., Urbańczyk M.
Molecular and Quantum Acoustics
|
2000
|
Vol. 21
311-317
9
Content available remote Spectral response of integrated-optic ammonia sensor.
Opilski Z., Krasiński P., Opilski A.
Optica Applicata
|
1999
|
Vol. 29, nr 1-2
95-100
EN
The paper presents the structure of measurement stands for spectral measurement of sensor layers sensitive to the presence of ammonia vapours in the atmosphere surrounding them. Also the structure of a waveguide sensor model for detection of ammonia vapours has been presented, together with measurement results involving such a sensor.
10
Content available remote Applicability of interference TE0-TM0 modes and TE0-TE1 modes to the construction of waveguide sensor.
Gut K., Krasiński P., Wójcik W., Rogoziński R., Opilski Z, Opilski A.
Optica Applicata
|
1999
|
Vol. 29, nr 1-2
101-109
EN
The paper presents exemplary application of the interference TE0-TM0 modes to monitor the presence of water vapour and ammonia. Also the possibility of applying the mode in interference of the same polarization states (TE0-TM1) to monitor the changes of refractive index are presented. The planar waveguides have been produced using the ion exchange technique Na+ - K+ in the glass BK-7.
11
Difference Interferometer Produced with the Application of Ion Exchange Method
Gut K., Karasiński P., Opilski A.
Molecular and Quantum Acoustics
|
1999
|
Vol. 20
59-66
EN
The paper presents the results of investigation studies on the difference interferometer produced with the application of ion exchange technology K+ - Na+ and Ag+ - Na+ in the glass BK7. The investigation involved the applicability of such interferometers to determine the refractive index of the covers, which at the present stage of experiments are in the form of liquids.
12
Acoustics - Acoustooptics - Optoelectronics
Opilski A.
Molecular and Quantum Acoustics
|
1999
|
Vol. 20
301-321
EN
Development and scientific achievements of the Department of Acoustooptoelectronics on the 30th anniversary of the Faculty of Mathematics and Physics.
13
Investigation of interference Te0-Te1 modes in planar difference interferometer
Wójcik W., Gut K., Karasiński P., Opilski A.
Molecular and Quantum Acoustics
|
1998
|
Vol. 19
281-288
EN
The work presents the potentials for the application of the mode interference of the same polarization states (TE0-TEl) to monitor the changes of refractive index. The planar waveguides were produced using the ion exchange technique Na+-K+ in the glass BK-7.
14
Wykorzystanie akustycznej fali powierzchniowej do detekcji śladowych ilości NO₂ w powietrzu
Jakubik W., Opilski A.
Elektronizacja : podzespoły i zastosowania elektroniki
|
1998
|
nr 5
6-8
first rewind previous Strona / 1 next fast forward last
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.