Method and apparatus for measuring surface density of explosive

Details Method and apparatus for measuring surface density of explosive Method and apparatus for measuring surface density of explosive

1987-06-09

1988-12-27

Rosenberger, Richard A.

Optics: measuring and testing

Of light reflection

With diffusion

356448, G01N 2155

Patent

active

047937106

ABSTRACT:
A method for determining the surface density of coal dust on top of rock dust or rock dust on top of coal dust is disclosed which comprises directing a light source at either a coal or rock dust layer overlaying a substratum of the other, detecting the amount of light reflected from the deposit, generating a signal from the reflected light which is converted into a normalized output (V), and calculating the surface density from the normalized output. The surface density S.sub.c of coal dust on top of rock dust is calculated according to the equation:

REFERENCES:
patent: 1894808 (1933-01-01), Witte
patent: 2895809 (1933-01-01), Witte
patent: 4566798 (1986-01-01), Haas
Arkin et al., Statistical Methods, fifth edition, College Outline Series, Barnes & Noble, New York, .COPYRGT.1970, pp. 100-101.

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