Analysis of short wavelength infrared radiation during laser welding of plastics
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F18%3A43951600" target="_blank" >RIV/49777513:23520/18:43951600 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/49777513:23640/18:43951600
Výsledek na webu
<a href="http://dx.doi.org/10.1364/AO.57.00D145" target="_blank" >http://dx.doi.org/10.1364/AO.57.00D145</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/AO.57.00D145" target="_blank" >10.1364/AO.57.00D145</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Analysis of short wavelength infrared radiation during laser welding of plastics
Popis výsledku v původním jazyce
In this article, a new measurement system and a new approach in calculation for infrared (IR) radiation investigation in quasi-simultaneous transmission laser welding of plastics are presented. The measurement system is based on a MW/SWIR (medium-wave/short-wave infrared) camera and optical filters narrowing the spectral region to SWIR. The measured signals contain radiation from the melted zone in between the semitransparent and absorbing polymers, as well as radiation from the surface and interior of the semitransparent polymer. The new calculation approach was developed to distinguish between these signals. It is based on simplification of the process to two places with two temperatures (surface and molten interface) and knowledge of the spectral optical properties of the material, filters and camera response. The results of measurement and calculation for three different optical filters and polyoxymethylene (POM) samples with two thicknesses are shown and discussed. Good agreement is obtained for the calculation variant using normal transmissivity of the semitransparent polymer.
Název v anglickém jazyce
Analysis of short wavelength infrared radiation during laser welding of plastics
Popis výsledku anglicky
In this article, a new measurement system and a new approach in calculation for infrared (IR) radiation investigation in quasi-simultaneous transmission laser welding of plastics are presented. The measurement system is based on a MW/SWIR (medium-wave/short-wave infrared) camera and optical filters narrowing the spectral region to SWIR. The measured signals contain radiation from the melted zone in between the semitransparent and absorbing polymers, as well as radiation from the surface and interior of the semitransparent polymer. The new calculation approach was developed to distinguish between these signals. It is based on simplification of the process to two places with two temperatures (surface and molten interface) and knowledge of the spectral optical properties of the material, filters and camera response. The results of measurement and calculation for three different optical filters and polyoxymethylene (POM) samples with two thicknesses are shown and discussed. Good agreement is obtained for the calculation variant using normal transmissivity of the semitransparent polymer.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10306 - Optics (including laser optics and quantum optics)
Návaznosti výsledku
Projekt
—
Návaznosti
O - Projekt operacniho programu
Ostatní
Rok uplatnění
2018
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Applied Optics
ISSN
2155-3165
e-ISSN
—
Svazek periodika
57
Číslo periodika v rámci svazku
18
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
10
Strana od-do
"D145"-"D154"
Kód UT WoS článku
000435841800021
EID výsledku v databázi Scopus
2-s2.0-85048951612