| POLÁČEK, Luboš, Jana JURMANOVÁ a Zdeněk NAVRÁTIL. Laser galvo mirrors: perfect instrument for the demonstration of Lissajous figures. Online. Physics Education. Bristol, Great Britain: Institute of Physics Publishing, 2019, roč. 54, č. 5, s. 1-6. ISSN 0031-9120. Dostupné z: https://dx.doi.org/10.1088/1361-6552/ab248f. [citováno 2024-04-23] |
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@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
IS - 5
SP - 1-6
EP - 1-6
PB - Institute of Physics Publishing
SN - 00319120
KW - lissajous fugures
KW - galvo mirrors
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 a Zdeněk NAVRÁTIL. Laser galvo mirrors: perfect instrument for the demonstration of Lissajous figures. Online. \textit{Physics Education}. Bristol, Great Britain: Institute of Physics Publishing, 2019, roč.~54, č.~5, s.~1-6. ISSN~0031-9120. Dostupné z: https://dx.doi.org/10.1088/1361-6552/ab248f. [citováno 2024-04-23]
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