A method for measuring the settling velocity distribution of large biotic particles

@article{Loubet2007AMF,
  title={A method for measuring the settling velocity distribution of large biotic particles},
  author={Benjamin Loubet and Nathalie Jarosz and S{\'e}bastien Saint-Jean and Laurent Huber},
  journal={Aerobiologia},
  year={2007},
  volume={23},
  pages={159-169}
}
A simple method for measuring the settling velocity (Vs) distribution of pollen and spores 30–100 μm in diameter is detailed and evaluated. The method is called the ‘settling tower' and consists in taking sequential pictures of particles falling under gravity in calm air. The scene is illuminated by a cold light source, while a camera takes 15 pictures per second. Between 20,000 and 100,000 images are analysed to obtain the distribution of Vs for a given set of particles. The method was… CONTINUE READING