Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Petr Siska"'
Autor:
Daniel Krizan, Jiri Stipal, Jan Nedoma, Sandro Oliveira, Marcel Fajkus, Jakub Cubik, Petr Siska, Emiliano Schena, Daniela Lo Presti, Carlos Marques
Publikováno v:
APL Photonics, Vol 9, Iss 8, Pp 081201-081201-17 (2024)
Fiber optic sensors based on fiber Bragg grating (FBG) technology have the potential to revolutionize the way vital signs of the human body are measured and monitored. By leveraging their unique properties, these sensors can provide accurate and reli
Externí odkaz:
https://doaj.org/article/36bbc4b466074d66ad29cd6bccf4bb60
Publikováno v:
IEEE Access, Vol 11, Pp 66777-66792 (2023)
This article deals with frequency PWM (pulse-width modulation) control methodology and experiments related to a deep characterization of InGaN (Indium gallium nitride) EELs (Edge Emitting Lasers) and the influence of drive current shape on power and
Externí odkaz:
https://doaj.org/article/9fbe4c418d5848a4a3d3f298aade36d6
Autor:
Martin Klempa, Jan Latal, Barbora Grafova, Michal Matloch Porzer, Mojmir Vrtek, Antonin Kunz, Petr Siska
Publikováno v:
Sensors, Vol 21, Iss 21, p 7027 (2021)
This research was undertaken to perform and evaluate the temperature measurement in the ground utilized as an energy source with the goal to determine whether significant temperature variations occur in the subsurface during the heating season. The r
Externí odkaz:
https://doaj.org/article/443fa1ec5979417aa5494853e077d494
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 15, Iss 1, Pp 93-100 (2017)
This article describes the design and the functional verification of fiber optic system with an innovative non-invasive measuring probe for monitoring respiratory and heart rate. The measuring probe is based on Fiber Bragg Grating (FBG), and it is en
Externí odkaz:
https://doaj.org/article/7a36010c39264c4a8b47e8a82bd3d04a
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 14, Iss 3, Pp 318-324 (2016)
Fiber optic interferometers and Bragg gratings belong to the group of very precise and sensitive devicesthat allow measuring very small deformation, temperature or vibration changes. The described methodology presentsthe useof a Mach-Zehnder interfer
Externí odkaz:
https://doaj.org/article/dc6356521ca14201b326d51653940ffd
Autor:
Marcel Fajkus, Isa Navruz, Stanislav Kepak, Alan Davidson, Petr Siska, Jakub Cubik, Vladimir Vasinek
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 13, Iss 5, Pp 575-582 (2015)
In this paper, an analysis of the use of wavelength and time division multiplexing techniques for quasi-distributed measurement in uniform fiber Bragg gratings is presented. To date, publications have concentrated on the determination of the maximum
Externí odkaz:
https://doaj.org/article/5f93df10060d4578b5e1d6e34371abd1
Autor:
Radek Poboril, Petr Siska, Jan Latal, Martin Smrz, Jakub Cubik, Stanislav Kepak, Vladimir Vasinek
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 12, Iss 6, Pp 557-566 (2014)
The aim of this article is to highlight possible unwanted behaviour of an EDFA optical amplifier during temperature changes. After a brief introduction dealing with amplifiers and doped fibers in general we focus on the assembly of our own EDFA ampli
Externí odkaz:
https://doaj.org/article/97a43d6a1c1c4dfaa4ebdc49951b6229
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 12, Iss 6, Pp 617-621 (2014)
This article deals with the construction design of optical transmitter for indoor Free Space Optic (FSO) networks. This optical transmitter will be able to provide the lighting and communication at the same time. Thanks to special solution in spectra
Externí odkaz:
https://doaj.org/article/a793a186cab748d5b26ceb926f130a63
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 11, Iss 3, Pp 227-234 (2013)
This article deals with research of luminous sources which could be applied in indoor Free Space Optic (FSO) networks. Indoor FSO networks have potential to replace standard IEEE 802.11 in the future. Suitable selection and configuration of optical r
Externí odkaz:
https://doaj.org/article/dcd32e0493914af884106d581dc02be5
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 10, Iss 3, Pp 187-194 (2012)
The Optical fiber DTS (Distribution Temperature Systems) are unique distributed temperature systems using optical fiber as a sensor. These systems are able to measure the temperature along the fiber, in some case they can measure tension as well. For
Externí odkaz:
https://doaj.org/article/4bbce2816dfb4eca8684ad18808dcdf5