| 摘要 |
A method of measuring the distribution of sizes of particles within a moving sample is disclosed, which comprises: (a) illuminating a measuring region through which a sample of particles is passed; (b) capturing one or more first image(s) of individual particles the sample; (c) capturing one or more second image(s) of each individual particle for which a first image has been captured, and measuring the velocity of each such particles by comparing the first and second images; and (d) determining from either, or both of, the first and second images the size of each individual particle for which both said images are captured; whereby each velocity neasurement is used to correlate the contribution of each sized particle to the total size distribution of all particles in the sample, whether sized or not, and so enable calculation of that total size distribution. An apparatus adapted to employ the method is also described. |
