INVESTIGADORES
SCAFFARDI Lucia Beatriz
artículos
Título:
SIZING PARTICLES BY BACKSCATTERING SPECTROSCOPY AND FOURIER ANALYSIS
Autor/es:
F. VIDELA; D. SCHINCA; L. SCAFFARDI
Revista:
OPTICAL ENGINEERING
Editorial:
SPIE
Referencias:
Lugar: Washington; Año: 2006 vol. 45 p. 480011 - 480019
ISSN:
0091-3286
Resumen:
Optical single backscattering spectroscopy can be used for
sizing particles suspended in aqueous solution. In this work, we present
results of backscattering spectroscopy applied to the determination of
radii of calibrated spherical latex microparticles when a beam of white
light is incident on the sample. From Mie calculations and Fourier analysis,
we can determine the radius of particles covering the range between
0.5 and 12 m for monomodal samples, with a mean error of 0.7 m. To
improve the accuracy, a correlation algorithm is applied that reduces the
uncertainty in more than an order of magnitude and compares to the
traceable error given by the manufacturer. The method can be also applied
to bimodal and trimodal samples, allowing the separation of different
size components.
improve the accuracy, a correlation algorithm is applied that reduces the
uncertainty in more than an order of magnitude and compares to the
traceable error given by the manufacturer. The method can be also applied
to bimodal and trimodal samples, allowing the separation of different
size components.
improve the accuracy, a correlation algorithm is applied that reduces the
uncertainty in more than an order of magnitude and compares to the
traceable error given by the manufacturer. The method can be also applied
to bimodal and trimodal samples, allowing the separation of different
size components.
m for monomodal samples, with a mean error of 0.7 m. To
improve the accuracy, a correlation algorithm is applied that reduces the
uncertainty in more than an order of magnitude and compares to the
traceable error given by the manufacturer. The method can be also applied
to bimodal and trimodal samples, allowing the separation of different
size components.