Patent ID: 8854451
Filing Date: 2014-10-07
Classification: C25D,G01N,G06T

Abstract:
1. An automated bubble detection apparatus comprising: a horizontal support surface on which a test coupon having a coating to be evaluated for its corrosion resistance is supported; a transparent tube containing an acidic test solution positioned on the test coupon; a camera arranged to view and record video segments of the test solution in the transparent tube; and a controller in communication with the camera and effective to operate the camera such that the video segments are recorded at timed intervals and the recorded images are analyzed for presence of bubbles in the test solution; wherein (a) the automated bubble detection apparatus includes two or more transparent tubes each mounted to different test coupons supported on the horizontal support surface and (b) each tube has an inner diameter ranging from about 0.5 inch to about 1.5 inch and an outer diameter ranging from about 0.6 inch to about 1.75 inch;