Process and apparatus for testing a multi-trip bottle for...

Details Process and apparatus for testing a multi-trip bottle for... Process and apparatus for testing a multi-trip bottle for...

G - Physics

01

N

G01N 21/90 (2006.01)

Patent

CA 2163294

To test a bottle (1) for contamination, the bottom of the bottle is laterally illuminated with a measuring light beam (7) from a source (2). This measuring light beam is deflected, as if in a waveguide, in the ring of residual liquids (3) at the bottom of the bottle. Light (8) reemerging from the residual liquid is imaged on a detector (5) by an imaging lens (4). The detector measures the spectral composition of the deflected light (8) and compares this with theoretical values which should be yielded by the liquid with which the bottle was last filled. If deviations from the theoretical values are excessive, the bottle is rejected. The process described provides a simple way of determining whether a multi-trip bottle has contained an extraneous liquid.

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