Enhancement of photoacoustic detection of inhomogeneities in polymers
We report a series of experiments on laser pulsed photoacoustic excitation in turbid polymer samples addressed to evaluate the sound speed in the samples and the presence of inhomogeneities in the bulk. We describe a system which allows the direct measurement of the speed of the detected waves by en...
| Autores principales: | , , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2013
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/85551 |
| Aporte de: |
| id |
I19-R120-10915-85551 |
|---|---|
| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ingeniería Laser Sound speed Inhomogeneities |
| spellingShingle |
Ingeniería Laser Sound speed Inhomogeneities Grondona, P. Di Rocco, Héctor O. Iriarte, D. I. Pomarico, J. A. Ranea Sandoval, Héctor F. Bilmes, Gabriel Mario Enhancement of photoacoustic detection of inhomogeneities in polymers |
| topic_facet |
Ingeniería Laser Sound speed Inhomogeneities |
| description |
We report a series of experiments on laser pulsed photoacoustic excitation in turbid polymer samples addressed to evaluate the sound speed in the samples and the presence of inhomogeneities in the bulk. We describe a system which allows the direct measurement of the speed of the detected waves by engraving the surface of the piece under study with a fiduciary pattern of black lines. We also describe how this pattern helps to enhance the sensitivity for the detection of an inhomogeneity in the bulk. These two facts are useful for studies in soft matter systems including, perhaps, biological samples. We have performed an experimental analysis on Grilon®samples in different situations and we show the limitations of the method. |
| format |
Articulo Articulo |
| author |
Grondona, P. Di Rocco, Héctor O. Iriarte, D. I. Pomarico, J. A. Ranea Sandoval, Héctor F. Bilmes, Gabriel Mario |
| author_facet |
Grondona, P. Di Rocco, Héctor O. Iriarte, D. I. Pomarico, J. A. Ranea Sandoval, Héctor F. Bilmes, Gabriel Mario |
| author_sort |
Grondona, P. |
| title |
Enhancement of photoacoustic detection of inhomogeneities in polymers |
| title_short |
Enhancement of photoacoustic detection of inhomogeneities in polymers |
| title_full |
Enhancement of photoacoustic detection of inhomogeneities in polymers |
| title_fullStr |
Enhancement of photoacoustic detection of inhomogeneities in polymers |
| title_full_unstemmed |
Enhancement of photoacoustic detection of inhomogeneities in polymers |
| title_sort |
enhancement of photoacoustic detection of inhomogeneities in polymers |
| publishDate |
2013 |
| url |
http://sedici.unlp.edu.ar/handle/10915/85551 |
| work_keys_str_mv |
AT grondonap enhancementofphotoacousticdetectionofinhomogeneitiesinpolymers AT diroccohectoro enhancementofphotoacousticdetectionofinhomogeneitiesinpolymers AT iriartedi enhancementofphotoacousticdetectionofinhomogeneitiesinpolymers AT pomaricoja enhancementofphotoacousticdetectionofinhomogeneitiesinpolymers AT raneasandovalhectorf enhancementofphotoacousticdetectionofinhomogeneitiesinpolymers AT bilmesgabrielmario enhancementofphotoacousticdetectionofinhomogeneitiesinpolymers |
| bdutipo_str |
Repositorios |
| _version_ |
1764820489500360710 |