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Extrusion: Velocity sensor eliminates short cuts and overruns

With precision of +/- 0.1%, Canon laser doppler velocity (LDV) sensors are ideal for in-line measurements of extruded plastic products. Measurements are made without contact so the manufacturing proce...


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January 1, 2003 by Canadian Plastics

With precision of +/- 0.1%, Canon laser doppler velocity (LDV) sensors are ideal for in-line measurements of extruded plastic products. Measurements are made without contact so the manufacturing process is not affected, and the sensors can be used for a variety of products, regardless of size, density, weight, ductility and color.

Canon has introduced two models of LDV sensors to the North American market — the P-50Z, with a velocity range of -50 to 5000 mm/sec, and the P-20Z, with a velocity range of -12 to 120 m /min.

Both systems use a 680 nm semiconductor-based laser with dual convergent beams to measure moving and rotary bodies on materials with reflectivity as low as 20%.

Canon USA Inc. 516-328-4611