About: Tilt angle measurement with a Gaussian-shaped laser beam tracking

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We have addressed the challenge to carry out the angular tilt stabilization of a laser guiding mirror which is intended to route a laser beam with a high energy density. Such an application requires good angular accuracy as well as large operating range, long term stability and absolute positioning. We have designed an instrument for such a high precision angular tilt measurement based on a triangulation method where a laser beam with Gaussian profile is reflected off the stabilized mirror and detected by an image sensor. As the angular deflection of the mirror causes a change of the beam spot position, the principal task is to measure the position on the image chip surface. We have employed a numerical analysis of the Gaussian intensity pattern which uses the nonlinear regression algorithm. The feasibility and performance of the method were tested by numeric modeling as well as experimentally. The experimental results indicate that the assembled instrument achieves a measurement error of 0.13 microradian in the range 0.65 degrees over the period of one hour. This corresponds to the dynamic range of 1:170 000 We have addressed the challenge to carry out the angular tilt stabilization of a laser guiding mirror which is intended to route a laser beam with a high energy density. Such an application requires good angular accuracy as well as large operating range, long term stability and absolute positioning. We have designed an instrument for such a high precision angular tilt measurement based on a triangulation method where a laser beam with Gaussian profile is reflected off the stabilized mirror and detected by an image sensor. As the angular deflection of the mirror causes a change of the beam spot position, the principal task is to measure the position on the image chip surface. We have employed a numerical analysis of the Gaussian intensity pattern which uses the nonlinear regression algorithm. The feasibility and performance of the method were tested by numeric modeling as well as experimentally. The experimental results indicate that the assembled instrument achieves a measurement error of 0.13 microradian in the range 0.65 degrees over the period of one hour. This corresponds to the dynamic range of 1:170 000 (en)
Title	Tilt angle measurement with a Gaussian-shaped laser beam tracking Tilt angle measurement with a Gaussian-shaped laser beam tracking (en)
skos:prefLabel	Tilt angle measurement with a Gaussian-shaped laser beam tracking Tilt angle measurement with a Gaussian-shaped laser beam tracking (en)
skos:notation	RIV/68081731:_____/14:00434160!RIV15-GA0-68081731
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(ED0017/01/01), P(EE2.3.30.0054), P(EE2.4.31.0016), P(GAP102/10/1813), P(LO1212)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Číp, Ondřej Šarbort, Martin Lazar, Josef Jedlička, Petr Řeřucha, Šimon
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav přístrojové techniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	50530
http://linked.open...ai/riv/idVysledku	RIV/68081731:_____/14:00434160
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	optical alignment; tilt angle measurement; laser beam tracking; metrology (en)
http://linked.open.../riv/klicoveSlovo	laser beam tracking optical alignment tilt angle measurement metrology
http://linked.open...ontrolniKodProRIV	[CD153CCC3AF9]
http://linked.open...v/mistoKonaniAkce	Brussels
http://linked.open...i/riv/mistoVydani	Bellingham
http://linked.open...i/riv/nazevZdroje	Optical Micro- and Nanometrology V. (Proceedings of SPIE 9132)
http://linked.open...in/vavai/riv/obor	BH
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	ALISI - Centre of advanced diagnostic methods and technologies Methods for generation of a length etalon by means of stabilized femtosecond mode-locked laser APPLICATION LABORATORIES OF ADVANCED MICROTECHNOLOGIES AND NANOTECHNOLOGIES Personal development of research teams MEDTECH - educational and research partner network in medicine, biomedicine and scientific instruments
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Lazar, Josef Číp, Ondřej Šarbort, Martin Řeřucha, Šimon Jedlička, Petr
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open...ain/vavai/riv/wos	000345034500045
http://linked.open.../riv/zahajeniAkce	2014-04-15 (xsd:date)
issn	0277-786X
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1117/12.2052880
http://purl.org/ne...btex#hasPublisher	SPIE

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