Volume-measuring method for surface depressions
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United States of America Patent
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-
Jul 31, 1990
Grant Date -
N/A
app pub date -
Dec 30, 1987
filing date -
May 27, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for measuring volume of surface depressions wherein the depression to be measured is or filled with a material which emits wavelength-shifted scatter light under irradiation. The material is illuminated with a light source whose wavelength lies in the absorption region of the material and the wavelength-shifted intensity of the scatter light of the material excited by the light source is measured with a photodetector, whereby the measured intensity is a measure of the volume of the surface depression.
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