Frequency analysis of the new prototype of the security window sensor

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F16%3A86098913" target="_blank" >RIV/61989100:27240/16:86098913 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1117/12.2241241" target="_blank" >http://dx.doi.org/10.1117/12.2241241</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2241241" target="_blank" >10.1117/12.2241241</a>

Result language
angličtina
Original language name
Frequency analysis of the new prototype of the security window sensor
Original language description
The paper describes the use of fiber-optic interferometer as a security sensor, which was built in a prototype of a plastic window. Its primary function is detecting the vibration and acoustic impulses, which affect the transparent glass part of the window prototype. The presented results are focused on the analysis of the frequency characteristic of the created prototype to verify of the sensitivity of the sensor. The knowledge of the frequency characteristic of the proposed window sensor is necessary due to the correct interpretation of the measured data. The interferometer is a Mach-Zehnder type and operates with an optical fibers G.652.D. As a radiation source, we used DFB laser with the wavelength of 1550 nm. The input optical power is 1 mW. Optical signal was detected by PbSe photodetector. The generator of the harmonic signal with fixed amplitude of the signal and digital sound level meter were used to the analysis of the frequency characteristic of the prototype. The analyzed frequency spectrum was in a range of 35 Hz to 8 kHz. The paper showed that this system is suitable for measurements of vibration impulses and acoustic waves in the audible range from 40 Hz up to 3 kHz.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of SPIE - The International Society for Optical Engineering. Volume 9994
ISBN
978-1-5106-0392-9
ISSN
0277-786X
e-ISSN
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Number of pages
8
Pages from-to
1-8
Publisher name
SPIE
Place of publication
Bellingham
Event location
Edinburgh
Event date
Sep 28, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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