对于颗粒的物理表征，Microtrac提供了一系列光学颗粒分析仪。Microtrac是全球唯一的动态图像分析、静态图像分析、激光衍射和筛网分析设备供应商，广泛了解每种方法的优缺点。
筛分分析、激光衍射还是动态图像分析？ 不同粒度分析方法的比较
| 动态影像分析 | 静态图像分析 | 筛分仪 (Retsch) |
激光衍射 | 动态光散射 | |
|---|---|---|---|---|---|
| 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 | 0.5 µm – 1.5 mm | 10 µm - 125 mm | 10 nm – 5 mm | 0.8 nm - 6500 nm |