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Proceedings Paper

Radar sensor for monitoring the injection moulding processes
Author(s): C. Sklarczyk; M. Knoblauch-Xander
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Paper Abstract

A compact and high integrated radar sensor working in the millimeterwave range can be applied for monitoring the injection moulding processes with and without gas assistance. The millimeterwaves are introduced into the cavity by a hollow waveguide and by a window transparent to millimeterwaves. In the frame of injection moulding experiments the process has been recorded simultaneously optically and by millimeterwave radar. When the melted plastics or the gas bubble are passing over the position of the sensor window, the signal of the sensor is abruptly changing both with regard to amplitude and phase thus indicating if the process is running correctly or not. The experimental investigations have been complemented by simulation calculations.

Paper Details

Date Published: 9 May 2005
PDF: 8 pages
Proc. SPIE 5770, Advanced Sensor Technologies for Nondestructive Evaluation and Structural Health Monitoring, (9 May 2005); doi: 10.1117/12.598766
Show Author Affiliations
C. Sklarczyk, Fraunhofer-Institut Zerstoerungsfreie Pruefverfahren (Germany)
M. Knoblauch-Xander, Fraunhofer-Institut Chemische Technologien (Germany)


Published in SPIE Proceedings Vol. 5770:
Advanced Sensor Technologies for Nondestructive Evaluation and Structural Health Monitoring
Norbert Meyendorf; George Y. Baaklini; Bernd Michel, Editor(s)

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