Laser galvo mirrors: perfect instrument for the demonstration
of Lissajous figures

J 2019

Laser galvo mirrors: perfect instrument for the demonstration of Lissajous figures

POLÁČEK, Luboš, Jana JURMANOVÁ and Zdeněk NAVRÁTIL

Basic information

Original name

Laser galvo mirrors: perfect instrument for the demonstration of Lissajous figures

Authors

POLÁČEK, Luboš (203 Czech Republic, guarantor, belonging to the institution), Jana JURMANOVÁ (203 Czech Republic, belonging to the institution) and Zdeněk NAVRÁTIL (203 Czech Republic, belonging to the institution)

Edition

Physics Education, Bristol, Great Britain, Institute of Physics Publishing, 2019, 0031-9120

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

50301 Education, general; including training, pedagogy, didactics [and education systems]

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

RIV identification code

RIV/00216224:14310/19:00111605

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1088/1361-6552/ab248f

Keywords in English

lissajous fugures; galvo mirrors

Abstract

V originále

A pair of galvo mirrors reflecting light from a laser pointer is suggested for use as a school demonstration of Lissajous figures. The device is small, cheap and easy to assemble. Combined with a two-channel waveform generator, a full spectrum of excellently stable Lissajous figures can be generated (concerning frequency ratio, amplitude ratio and initial phase angle difference). The operation at frequencies faster than the vision persistence allows us to draw the figures on a normal projection screen or on a wall. When operated with a violet laser pointer and a thermoluminescent foil, the frequencies can be decreased and the advance in figure drawing can be followed. The memory effect of the thermoluminescent foil also enables us to record and observe several Lissajous figures simultaneously.

Links

MUNI/FR/1478/2016, interní kód MU

Name: Kmity, vlny v předmětech F3100 - Kmity, vlny, optika a F7661 Praktikum školních pokusů 1 (Acronym: Kmity)

Investor: Masaryk University

Citovat

POLÁČEK, Luboš, Jana JURMANOVÁ and Zdeněk NAVRÁTIL. Laser galvo mirrors: perfect instrument for the demonstration of Lissajous figures. Physics Education. Bristol, Great Britain: Institute of Physics Publishing, 2019, vol. 54, No 5, p. 1-6. ISSN 0031-9120. Available from: https://dx.doi.org/10.1088/1361-6552/ab248f.

@article{1588357,
   author = {Poláček, Luboš and Jurmanová, Jana and Navrátil, Zdeněk},
   article_location = {Bristol, Great Britain},
   article_number = {5},
   doi = {http://dx.doi.org/10.1088/1361-6552/ab248f},
   keywords = {lissajous fugures; galvo mirrors},
   language = {eng},
   issn = {0031-9120},
   journal = {Physics Education},
   title = {Laser galvo mirrors: perfect instrument for the demonstration of Lissajous figures},
   url = {https://iopscience.iop.org/article/10.1088/1361-6552/ab248f},
   volume = {54},
   year = {2019}
}

TY  - JOUR
ID  - 1588357
AU  - Poláček, Luboš - Jurmanová, Jana - Navrátil, Zdeněk
PY  - 2019
TI  - Laser galvo mirrors: perfect instrument for the demonstration of Lissajous figures
JF  - Physics Education
VL  - 54
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SP  - 1-6
EP  - 1-6
PB  - Institute of Physics Publishing
SN  - 00319120
KW  - lissajous fugures
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UR  - https://iopscience.iop.org/article/10.1088/1361-6552/ab248f
L2  - https://iopscience.iop.org/article/10.1088/1361-6552/ab248f
N2  - A pair of galvo mirrors reflecting light from a laser pointer is suggested for use as a school demonstration of Lissajous figures. The device is small, cheap and easy to assemble. Combined with a two-channel waveform generator, a full spectrum of excellently stable Lissajous figures can be generated (concerning frequency ratio, amplitude ratio and initial phase angle difference). The operation at frequencies faster than the vision persistence allows us to draw the figures on a normal projection screen or on a wall. When operated with a violet laser pointer and a thermoluminescent foil, the frequencies can be decreased and the advance in figure drawing can be followed. The memory effect of the thermoluminescent foil also enables us to record and observe several Lissajous figures simultaneously.
ER  -

POLÁČEK, Luboš, Jana JURMANOVÁ and Zdeněk NAVRÁTIL. Laser galvo mirrors: perfect instrument for the demonstration of Lissajous figures. \textit{Physics Education}. Bristol, Great Britain: Institute of Physics Publishing, 2019, vol.~54, No~5, p.~1-6. ISSN~0031-9120. Available from: https://dx.doi.org/10.1088/1361-6552/ab248f.

Detailed Information on Publication Record