Abstract
An instrument utilizing the principle of laser light scattering has been successfully applied in quality control laboratories for measurement and analysis of particle size distributions1. The technology has been extended to permit continuous measurements and analysis of particle size distributions in process streams2. The instrumentation employs a rotating optical filter and first generation microcomputer3resulting in an upper particle size range of 300 micrometers. A new instrument utilizes a solid state optical detector and a more powerful microcomputer. This allows analysis of particle size distributions up to 1000 micrometers in diameter with a significant increase in speed of response.The configuration of this new optical and electronic system will be discussed. The advanced microprocessor system will be emphasized, Including its ability to interface with various types of computer equipment.
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