![]() The powder is measured and then evacuated though the bottom of the system automatically by vacuum.Ĭross-section of the PowderJet cell (left) and a close-up of the PowderJet cell dispersion mechanism (right). The now-dispersed powder flows into the measurement zone where the optical glass in the cell is protected from wear by laminar sheets of air generated by the air guidance plates. The dispersion nozzle geometry is designed so that the air is accelerated to supersonic velocity (this is the Jet in PowderJet). There, the sample flows through a venturi nozzle where any agglomerates are dispersed using 360° compressed air and no impaction surfaces which may cause milling. Sample flows along the vibratory feeder before falling into the dispersion chamber. The two figures below show details of the PowderJet dispersion system and measurement cell. This fourth-generation of the PowderJet technology has built upon user feedback and previous versions to become the easiest to use, most powerful dry dispersion accessory available. To accomplish this, HORIBA created several tools such as a feedback control loop, scan filters, and more. The LA-960V2 PowderJet was designed from the very beginning with the goal of maximizing precision. Thus the PowderJet became just as important to the development team as the choice of laser, detector layout, and circuit design. The "raw" scattered light data is then passed to the calculation algorithm where it will be transformed into a particle size distribution.įor more information about acquiring an instrument, click here.When the LA-960V2 project was launched it had the explicit goal of producing not just the most advanced optical system but also sample handlers to take advantage of it.
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