Saved in:
| Main Author: | |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad del Bío Bío
2018
|
| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=48557888013 https://www.redalyc.org/journal/485/48557888013/ https://www.redalyc.org/journal/485/48557888013/html/ https://www.redalyc.org/journal/485/48557888013/48557888013.epub https://www.redalyc.org/journal/485/48557888013/movil |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Table of Contents:
- Ultrasound measurement of exterior wood coating thickness Štěpán Hýsek Kamil Trgala Hakan Fidan Miloš Pánek Martin Lexa Martin Böhm Jan Veverka Agrociencias non ultrasonic coat thickness Acrylate dispersion destructive measurement The present paper deals with the measurement of coat thickness on wood using an ultrasonic measurement method. Exterior wood coatings (waterborne acrylate dispersions) with coating film thickness between 80 - 115 µm were examined. The non-destructive film thickness measurement used a Sursonic ultrasound measuring device, enabling measurement of the thickness of thin films on non-ferromagnetic and simultaneously non-conductive materials. The device also enables measurement of very thin layers of coating films, where the transit time of an ultrasound pulse through the film is shorter than the time width of the pulse. The accuracy of measurement using this measuring device was determined; destructive measurement using a light microscope was chosen as a reference measurement method. Differences in the results measured using the destructive and non-destructive methods were recorded; nevertheless, in most cases, these differences are smaller than the uncertainty of measurement using the light microscope. It can be concluded, therefore, that the results of the two compared methods match over the entire range of thickness of 80 - 115 µm. The largest differences in the measurement readings from the destructive and non-destructive methods were identified in the range of 97 - 103 µm. 2018 artículo científico 0717-3644 https://www.redalyc.org/articulo.oa?id=48557888013 https://www.redalyc.org/journal/485/48557888013/ https://www.redalyc.org/journal/485/48557888013/html/ https://www.redalyc.org/journal/485/48557888013/48557888013.epub https://www.redalyc.org/journal/485/48557888013/movil en http://www.redalyc.org/revista.oa?id=485 Maderas. Ciencia y Tecnología application/pdf Universidad del Bío Bío Maderas. Ciencia y Tecnología (Chile) Num.4 Vol.20