Para la caracterización física de partículas Microtrac ofrece una gama de analizadores ópticos de partículas, siendo el único proveedor mundial de equipos de análisis dinámico de imágenes, difracción láser y análisis de tamices con un amplio conocimiento de las fortalezas y debilidades de cada método.
Particle Size is the fastest way to rule methods in or out. Find your range on the scale. In case two methods overlap, the questions below will help you decide.
Do you need particle shape, not just size?
Only Dynamic Image Analysis (DIA) measures shape and individual particles - the others report a size distribution only.
Do you need to analyze below ~1 µm?
Then Dynamic Light Scattering (DLS), or Laser Diffraction (LD) down to 10 nm. Above ~1 mm, Dynamic Image Analysis (DIA).
Do you need to catch a few oversized grains?
Dynamic Image Analysis (DIA) detects them reliably; laser diffraction and DLS can miss them.
Are you looking to replace sieve analysis?
Dynamic Image Analysis (DIA) reproduces sieve results while removing the manual effort and screen wear.
¿Tamizado, difracción láser o análisis dinámico de imágenes? Tabla comparativa de los métodos de medición de los analizadores ópticos de partículas
| Análisis dinámico de imágenes | Tamizado (Retsch) |
Difracción láser | Dispersión de luz dinámica (DLS) | |
|---|---|---|---|---|
| Wide dynamic measurement range | ++ | + | ++ | + |
| Reproducibility and repeatability | ++ | + | ++ | + |
| High resolution for narrow distributions | ++ | - | + | + |
| Particle shape analysis | + | - | - | - |
| Direct measurement technique | ++ | + | - | - |
| Reliable detection of oversized grains | ++ | ++ | - | + |
| Robust hardware, easy operation for routine analysis | ++ | + | ++ | + |
| Analysis of individual particles | + | - | - | - |
| High measurement speed, short measurement times | ++ | - | ++ | + |
| Analysis of nano particles | - | - | + | ++ |
| Analysis of Zeta potential and molecular weight | - | - | - | ++ |
| Versatility | + | + | ++ | - |
| Measuring range | 0.8 µm - 135 mm | 10 µm - 125 mm | 10 nm – 5 mm | 0.8 nm - 6500 nm |