Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Henryk J. Wierzba"'
Publikováno v:
SPIE Proceedings.
The requirements for design and construction of fiber optic measuring heads (probes) based on an imaging rigid fiber optic bundle and on flexible fiber optic bundles are presented. The models of the probes and their application in a spectrophotometri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb443926805dfc861f4536d25ac2a7c0
https://doi.org/10.1117/12.348705
https://doi.org/10.1117/12.348705
Publikováno v:
SPIE Proceedings.
The widespread migration to the Wavelength Division Multiplexing telecommunication systems stimulates the demand for tunable external cavity semiconductor lasers used for production testing and maintenance purposes. As these lasers have a coherence l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cc35e60be200a6547c257f33e2d4b49
https://doi.org/10.1117/12.346871
https://doi.org/10.1117/12.346871
Autor:
Henryk J. Wierzba, Ryszard Hypszer
Publikováno v:
Optoelectronic and Electronic Sensors II.
The fiber optic technique for relative humidity (RH) sensors based on the absorption spectrum of the optical fiber coated with colorimetric reagent cobalt chloride layer is discussed. Probe preparation, optical layout used in the experiment and the r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a067dd06a53768a38ece59507a607d2
https://doi.org/10.1117/12.266701
https://doi.org/10.1117/12.266701
Autor:
Andrzej Lozinski, Henryk J. Wierzba
Publikováno v:
Optoelectronic and Electronic Sensors.
Existing in pyroelectric crystals an electric polarization is compensated until the surface charge associated with the polarization is neutralized. Changing of crystal temperature causes the polarization change, what results in the free electric char
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ddfe76ef7d70d9b90137dadee9175094
https://doi.org/10.1117/12.213169
https://doi.org/10.1117/12.213169
Publikováno v:
Optoelectronic and Electronic Sensors.
Distributed fiber-optic sensing which implies monitoring of the magnitude of physical parameters and their variations along the length of continuous uninterrupted optical fiber is considered. OTDR technique and measurement results for various kinds o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14773b1ec40bc692608fb0625f122fa0
https://doi.org/10.1117/12.213167
https://doi.org/10.1117/12.213167
Autor:
Henryk J. Wierzba, Jakub Tomaszewski
Publikováno v:
Optoelectronic and Electronic Sensors.
The subject of this paper is a temperature optical fiber sensor based on the abrupt jump of the light scattering coefficient in the thermosensitive compounds at the solid-liquid phase transition. Discrete temperature values of phase transitions depen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6674b382af7f3165eb131a3fa4f08779
https://doi.org/10.1117/12.213168
https://doi.org/10.1117/12.213168
Publikováno v:
SPIE Proceedings.
The development of a fibre optic displacement sensor based on two-detector reflection measurement is reported. The response of the sensor is the relation between the difference and sum of two slightly differently detected responses, forming a linear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9f4913e2617ad7ebc08042fb7f2f614
https://doi.org/10.1117/12.952994
https://doi.org/10.1117/12.952994
Autor:
Andrzej Lozinski, Henryk J. Wierzba
Publikováno v:
SPIE Proceedings.
To switch over the light flux in bulk multimode optical switches the light flux division is usually done. In the paper the way of light flux division with transparent electrooptic high refractive index PLZT ceramics is described. The described way is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::069ccb65352124146850b8985130d51d
https://doi.org/10.1117/12.952969
https://doi.org/10.1117/12.952969
Publikováno v:
SPIE Proceedings.
The principle of operation of the fibre optical temperature sensor based on a blackbody radiation and its construction model is given in the paper. A quartz rod of 0.6 mm diameter and 20 cm length with a blackbody cavity at the one end was used to co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5aa1f287ebcc6ee53854570517931648
https://doi.org/10.1117/12.952993
https://doi.org/10.1117/12.952993
Autor:
Henryk J. Wierzba, Ryszard Hypszer
Publikováno v:
Ferroelectrics. 37:555-558
On the basis of the analysis of PLZT ceramics, dispersion properties were determined: 1) G—the electrooptic coefficient; 2) β—the polarization potential coefficient for PLZT 12/40/60. In addition, domain distribution was determined and values of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e6423e6e648089372f2d6aaede284a3
https://doi.org/10.1080/00150198108223484
https://doi.org/10.1080/00150198108223484