Patent ID: 7050167
Filing Date: 2006-05-23
Classification: G01N

Abstract:
1. A method of obtaining a relatively consistent scattered light measurement, comprising: moving an accommodation vessel through a light beam via a rotor system; directing the light beam passing through the accommodation vessel toward a detection unit to produce a scattered component and a transmitted component of the light beam; cyclically measuring, via a first detector, an intensity of the transmitted component of the light beam based on a position of the accommodation vessel relative to the light beam; cyclically measuring, via second detector, an intensity of the scattered component of the light beam separately from the transmitted component based on the position of the accommodation vessel relative to the light beam; adjusting an intensity of the light beam directed through the accommodation vessel based on the measured intensity of the transmitted component of the light beam; and allowing the scattered component of the light beam to pass around a diaphragm upon which the transmitted component of the light beam impinges.