In the development process of online thickness measuring instrument for float glass tin bath

in order to overcome the influence of fluctuation effects of laser light transmission under the conditions of high temperature gas turbulent fluctuation on laser measurement system performance

a detection mean of image point trajectories based on frame difference is introduced.Certain flow field image blurring and reflects the degree of jitter is inversely proportional to the integration time of CCD.Experiment neighborhood moving average method with the appropriate window

and amend the data series of linear CCD can eliminate the effects on the video caused by thermally induced optical errors.