Sensor device and method of operation

Details Sensor device and method of operation Sensor device and method of operation

1988-09-30

1990-12-11

Rosenberger, Richard A.

Optics: measuring and testing

Of light reflection

With diffusion

356371, G01B 1130, G01N 2184, B41F 3310

Patent

active

049765450

ABSTRACT:
Sensor device for analyzing a surface structure includes a lighting device for emitting a focussed beam of light rays directed onto a surface, a radiation detector element for sensing light rays reflected from the surface, and an evaluating device for determining the surface structure from signals emitted by the light-ray detector element, a parameter T.sub.N for the surface structure being determinable by the evaluating device in accordance with a third moment of distribution of intensity of the reflected light rays in accordance with an equation: ##EQU1## wherein n represents a number of measuring points along a scattering indicatrix corresponding to the light rays reflected from the surface; P.sub.i is an initialized measuring signal according to an equation: ##EQU2## wherein I.sub.i is in the intensity of the light rays on a measuring point i; K represents a scaling factor; and M has a value determinable from values for i and P.sub.i in accordance with the equation: ##EQU3##

REFERENCES:
patent: 3922092 (1975-11-01), Dandhker et al.
patent: 4677298 (1987-06-01), Zelmanorie et al.
patent: 4728196 (1988-03-01), Gerstorfer
patent: 4737035 (1988-04-01), Aoki et al.
The Polygraph, pp. 140-145; "Measurement of Surface Roughness by Light Scattering Method", Techn. Nuesseu, 52nd yr, Issue 2, pp. 74-78.
M. A. Berliner, VEB Technical Publications, Berlin, "Measuring Dampness", 1st ed., 1980, pp. 108-113.

Affiliated with

Also associated with

Rating

Sensor device and method of operation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sensor device and method of operation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensor device and method of operation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-386149