Matec Instrument Companies, Inc.

J Gabriel DosRamos

Tonis Oja

Gary Boulet

Robert W Reed

A flow-through device for use on-line in a conduit and capable of determining real-time characteristics of particles dispersed in a medium is disclosed. The device uses a sensor and a flow-through cell. The sensor has a stationary transducer positioned in a wall of the flow-through conduit to emit sound waves into the medium and a reflector or a second stationary transducer positioned opposite the transducer. The sensor provides a plurality of different acoustic path lengths through the medium between the transducer and reflector, thereby providing a plurality of different acoustic path lengths in the sensor and no moving parts for the transducer and reflectors. A method for determining the characteristics of particles dispersed in a medium in real time for an industrial process using the flow-through device also is disclosed. Further, a method of controlling particle size distribution in real time in a process using the flow-through device is disclosed.

Device for use in industrial process on-line determination of particle size distribution, and methods of use

A device for use in determining the characteristics of particles dispersed in a medium is described. The device has a sample cell for holding a sample containing particles dispersed in a medium. A transducer is positioned to emit sound waves into the sample of the sample cell. A mirror surface is positioned for translational movement within the sample cell without changing the level of the sample in the cell, for movement without the use of dynamic o-ring seals, and is positioned to reflect sound waves emitted by the transducer.

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Hopedale, MA, United States of America

J Gabriel DosRamos