naa a22 4500 510767605 CHVBK 20180411083202.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1007/s12043-013-0617-1 doi (NATIONALLICENCE)springer-10.1007/s12043-013-0617-1 Monitoring foam coarsening using a computer optical mouse as a dynamic laser speckle measurement sensor [Elektronische Daten] [JÁDER GUERRERO, ENRIQUE MEJIA-OSPINO, RAFAEL CABANZO] In this paper, we present an experimental approach to track coarsening process of foam using a computer optical mouse as a dynamic laser speckle measurement sensor. The dynamics of foam coarsening and rearrangement events cause changes in the intensity of laser speckle backscattered from the foam. A strong negative correlation between the average speed of the cursor and the evolution of bubble diameter was found. We used microscopic images to demonstrate that decrease in speed is related to increase in bubble size. The proposed set-up is not very expensive, is highly portable and can be used in laboratory measurements of dynamics in other kinds of opaque materials. Indian Academy of Sciences, 2013 Aqueous foam nationallicence optical flow sensor nationallicence dynamic laser speckle nationallicence computer optical mouse nationallicence GUERRERO JÁDER Grupo de Óptica y Tratamiento de Señales, Universidad Industrial de Santander, A.A. 678, Bucaramanga, Colombia aut MEJIA-OSPINO ENRIQUE Laboratorio de Espectroscopía Atómica y Molecular, Escuela de Física y Escuela de Química, Universidad Industrial de Santander, A.A. 678, Bucaramanga, Colombia aut CABANZO RAFAEL Laboratorio de Espectroscopía Atómica y Molecular, Escuela de Física y Escuela de Química, Universidad Industrial de Santander, A.A. 678, Bucaramanga, Colombia aut Pramana Springer India 81/6(2013-12-01), 987-994 0304-4289 81:6<987 2013 81 12043 https://doi.org/10.1007/s12043-013-0617-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12043-013-0617-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- GUERRERO JÁDER Grupo de Óptica y Tratamiento de Señales, Universidad Industrial de Santander, A.A. 678, Bucaramanga, Colombia aut NATIONALLICENCE 700 1- MEJIA-OSPINO ENRIQUE Laboratorio de Espectroscopía Atómica y Molecular, Escuela de Física y Escuela de Química, Universidad Industrial de Santander, A.A. 678, Bucaramanga, Colombia aut NATIONALLICENCE 700 1- CABANZO RAFAEL Laboratorio de Espectroscopía Atómica y Molecular, Escuela de Física y Escuela de Química, Universidad Industrial de Santander, A.A. 678, Bucaramanga, Colombia aut NATIONALLICENCE 773 0- Pramana Springer India 81/6(2013-12-01), 987-994 0304-4289 81:6<987 2013 81 12043 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer