Infrared holographic defect detector

G - Physics – 01 – N

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G01N 21/88 (2006.01) B60S 5/00 (2006.01) G01B 9/021 (2006.01) G03H 1/04 (2006.01) G03H 1/22 (2006.01) G01N 21/35 (2006.01) G01N 21/95 (2006.01) G01N 21/956 (2006.01)

Patent

CA 2042092

ABSTRACT OF THE DISCLOSURE An infrared holographic defect detector (10) comprises a far infrared pulsed coherent source (14) of infrared radiation which provides infrared radiation. The radiation is directed at a generally non-reflective surface (12), for example, a surface of an automobile body having a matt grey pre-coat thereon. A semi-transparent mirror (15) is placed in the path of the radiation to provide a reference beam (17) therefrom. An infrared detector (18) and a charge-coupled device (20) receives the radiation reflected from the surface and the reference signal. A comparator (22) compares the received reflected information and the reference signal and, preferably, information from a source (24) which defines a desired surface configuration in order to derive a quantitative measurement of the surface. A monitor (26) visually displays the quantitative measurement and location of any dents in the surface. To avoid a requirement that sequential automobile doors containing the surface of investigation be three-dimensionally aligned to within microns of reference points, a detector of the reflected radiation can be translated and rotated. A number of sensed images of the surface are taken, one at each of the different positions of the detector. For each image a measure of its correlation with the standard image is made.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Infrared holographic defect detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Infrared holographic defect detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Infrared holographic defect detector will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1887112

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.