Leak detection achieved by detection of light transmitted throug

Details Leak detection achieved by detection of light transmitted throug Leak detection achieved by detection of light transmitted throug

1993-04-02

1994-10-11

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

73 455, G01N 1506

Patent

active

053549996

ABSTRACT:
A tank filled with water is covered by a layer of oil containing carbon black. A radiation source preferably a high intensity visible spectrum light is aimed at the bottom surface of the oil/carbon layer. A radiation detector is placed parallel with and immediately above the oil/carbon layer. In operation, the oil/carbon layer will offer an opaque surface thereby preventing the passage of radiation. A bubble rising in the water will momentarily penetrate the oil/carbon layer. If the bubble diameter is greater than the oil/carbon layer thickness, the radiation will pass through the oil/carbon layer. Once the bubble bursts, the oil/carbon layer will immediately heal, thereby sealing off the passage of radiation. The radiation detector will detect any radiation passing through the oil/carbon layer. A passing bubble will be indicated as a discrete blast of radiation. The radiation detector preferably consists of an array of radiation detectors. The array produces indicia of X-Y location as a consequence of correlation of position within the array with radiation detection.

REFERENCES:
patent: 2961869 (1960-11-01), Bagno
patent: 3590256 (1971-06-01), Neeff
patent: 4419883 (1983-12-01), Gelston, II
patent: 4736621 (1988-04-01), Slinn et al.
patent: 4903524 (1990-02-01), Kataoka et al.
patent: 4924694 (1990-05-01), Gates
Nondestructive Testing Handbook, R. McMaster Ed., 2nd Edition, 1982, pp. 400-411.

Affiliated with

Also associated with

Rating

Leak detection achieved by detection of light transmitted throug does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Leak detection achieved by detection of light transmitted throug, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Leak detection achieved by detection of light transmitted throug will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1660735