Non-contact measurement provides accurate, on-line chemical analysis of solid organic products through the use of NIR (near-infrared) spectroscopy. It is a rapid and clean method of analysis which meets the needs of today's manufacturers for real-time QC and process control data.
Non-contact NIR measurement systems can be used wherever a product is in motion and accessible - on a conveyor belt, for instance, or inside a hopper. Accurate results can be obtained at distances from a millimeter to 30 cm.
FOSS NIRSystems pioneered full-scanning non-contact measurement, bringing it out of the lab to the production floor. The patented design uses NIR energy to monitor moving samples continuously, without interruption to the manufacturing process. Appearance measurements can also be made in the visible-light region.
The Direct-Light™ System is used where ambient lighting cannot be controlled, as above moving conveyors, webs or sheets. It is also used wherever sample height, texture and distance from the interface will vary. The Direct-Light instrument is a post-dispersive design with a bright light source and shutter mounted inside the sample interface. A collection fiber bundle passes reflected NIR energy to the detector inside the instrument enclosure.
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