Imaging system for leak detection

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12196944
APP PUB NO 20210215925A1
SERIAL NO

17134918

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Abstract

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An imaging system and method for leakage detection uses schlieren imaging to locate and characterize a flow of pressurized gas with a refractive index different than ambient air. In particular, a schlieren imaging system includes a collimated light, a knife-edge spatial filter and a 4F telescopic imaging system is used to create an image of a device under test (DUT). The DUT is pressurized and monitored for leaks. When a leak is present and in the monitored plane of the DUT, contrast variation illustrates the presence, location and character of the leak. For example, a waterproof/leakproof mobile device may be evaluated for leakage between layers of modules, such as leaks in the housing of a waterproof electronics case. This detection can allow identification and characterization of the leak point via visual identification.

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Patent Owner(s)

Patent OwnerAddress
KIMBALL ELECTRONICS INDIANA INC1205 KIMBALL BOULEVARD JASPER IN 47546

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Brunemeier, Paul Sunnyvale, US 1 23
Cheng, Yan San Jose, US 224 1347
Kim, Sangtaek Dublin, US 8 61
Sankaranarayanan, Athinarayanan Tamilnadu State, IN 3 26

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