Patent ID: 6773932
Filing Date: 2004-08-10
Classification: G01N

Abstract:
A system for collecting, storing, and displaying particle measurement data comprising:a plurality of particle measuring instruments for repeatedly measuring the number of particles and for determining an accumulated particle count and a differential particle count based upon a plurality of measurements; a plurality of converters for converting the accumulated particle counts and differential particle counts provided by the plurality of particle measuring instruments in accordance with a computer network protocol and providing the accumulated particle counts following conversion in accordance with the computer network protocol; a process data collection device for providing process data from other than particle measuring instruments; a computer network for receiving and storing the accumulated particle counts and differential particle counts and the process data, said computer network receiving the process data from said process data collection device in a manner independent of said particle measuring instruments; and a graphic user interface for displaying and retrieving at least some of the accumulated particle counts, differential particle counts, or process data.