| 摘要 |
<p>A method for determining the particle size distribution of particles within a suspension (12) comprises (i) directing light at a plurality of different wavelengths towards the suspension through a transparent light refractive medium (16), such as a prism, located adjacent to the suspension (12); (ii) measuring the critical angle ?c, at which total internal reflection occurs at an interface (20) between the suspension (12) and the transparent light refractive medium (16), for each wavelength of directed light; (iii) calculating the refractive index of the suspension (12) for each wavelength of directed light using the measured critical angles ?c; and (iv) determining the particle size probability distribution based on the calculated refractive indices. Also described is an apparatus (10) for determining the particle size distribution of particles within a suspension (12).</p> |
