On-line particle sampling and measurement system
The technology for measuring particulates has been available to industry for many years. Until now, however, a significant time lapse occurred between sample acquisition, sample analysis, and feedback to production personnel. This delay in obtaining the particulate-diameter data voided any "real-time" control of the process. With this method, control was adjusted by using wide set-point guidelines.
An on-line particle size measurement system now exists that eliminates the time delay between sample acquisition and feedback. By combining existing particulate measurement equipment with automatic sample extraction equipment, which is located in the process production area, the system allows real-time particulate data to be produced. This paper describes the equipment that composes the system, explains system operation, and discusses benefits and costs.