Method and apparatus for sampling and measuring a...

Details Method and apparatus for sampling and measuring a... Method and apparatus for sampling and measuring a...

G - Physics

01

N

73/113

G01N 21/01 (2006.01) G01N 15/06 (2006.01)

Patent

CA 1072363

METHOD AND APPARATUS FOR SAMPLING AND MEASURING A CHARACTERISTIC OF FLOWING GRANULAR MATERIAL Abstract A method and apparatus for sampling and op- tically measuring a selected characteristic of flowing granular material in which an optical window located at one end of a hollow sight tube is disposed in the material stream at an angle with respect thereto. A dam is carried by the sight tube downstream of the window to retard material flow and cause material to collect on the window surface. The selected material characteristic may then be measured as a function of an optical characteristic of the material as viewed through the sight tube and window. An air nozzle is disposed adjacent the window to remove the collected material sample at the end of a measurement sequence. - - - o - - - -i-

273765

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