Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Patent
1987-08-26
1989-03-21
McGraw, Vincent P.
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrometer
374161, G01B 902
Patent
active
048137812
ABSTRACT:
In a method for measuring the flowing of the material, the following steps: forming an array of parallel strips of said material constituting a diffraction grating; submitting said grating at the same conditions as the material, the flowing of which is to be monitored; illuminating the grating by a single wavelength light beam and observing the diffracted light.
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patent: 4188123 (1980-02-01), Kleinknecht
patent: 4200396 (1980-04-01), Kleinknecht et al.
patent: 4525066 (1985-06-01), Guillaume et al.
K. Dorenwendt et al, "Dimensinal Metrology In Technics by Diffraction of Light", Laserelektrooptic, vol. 19, No. 3 (Sep. 1978): 16, 19.
Dutartre Didier
Tissier Annie
McGraw Vincent P.
Turner S. A.
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