A newly developed XRF-Sensor with high sensitivity for increased sorting efficiency
X-Ray Fluorescence spectroscopy (XRF) is an element sensitive detection method and all kinds of materials can be separated as long as they are different in at least one element with an atomic number of Calcium or higher. Due to this capability XRF-Sensors can amongst other things be used to separate different kinds of glass (lead-glass, ceramics…), different metals (e.g. “meatballs†in scrap preparation) or in mining plants to separate metal rich from dead rocks.
We present results of our 3 track test setup having a field of view of 3x (25 mm x 25mm) showing very good limits of detection (LOD) as a function of conveyor belt velocity, sample size and clearance. Major elements are still detected at belt velocities of 4 m/s (=> 5 ms measurement time), a 100 mm clearance and samples as small as 2 mm² Cu wires.
Autor(en)
Dr. Günter Buzanich
Contentpartner
© Institut für anthropogene Stoffkreisläufe
Publikation
Sensor-Based Sorting & Control - 2016 (Februar 2016)
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