Improved Testing of the Heater Grid on Rear Automobile Windows, Utilizing a Thermal Imager

Chris Brown, Vern Lappe

During the process of manufacturing of the rear window (backlight) for an automobile the process requires the heating grid be tested, then, if required, repaired or scrapped. The present testing process requires one of various mechanical methods to find the defective grids.

Utilizing a thermal imager and specialized software can complete this process in a matter of a few seconds and almost all possible failure modes can be detected and recorded for future quality records. A thermal image of the defective grid will aid in the process of repairing the grid.

This process cuts the time for testing, eliminates costly fixtures and improves the determination of any failures. This improves or cuts the failure rate in the field and the replacement cost to the manufacturer.

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The Authors

Mr. Vern Lappe Vice President of Technical Services, Retired Ircon Inc. (Retired) Ircon is one of the worlds leading manufacturers of non-contact thermometers. I have been with Ircon for 30 years and have worked in many aspects of the glass industry. I have a BSME degree in Mech... Read more