Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Content or effect of a constituent of a liquid mixture
Patent
1974-02-04
1976-01-27
Gill, James J.
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Content or effect of a constituent of a liquid mixture
G01N 2900
Patent
active
039344584
ABSTRACT:
Method and apparatus are provided for processing the successive echo pulses which result from the interrogation of a layered material by energy pulses, and include the direct provision from said echo pulses of the uncompensated coherent echo response of said material to thereby preserve phase information, the provision of the compensated impulse response of said material by modification of said echo response with a non-linear correction function, and the calculation of the RAYLOGRAM of said material from said impulse response. All of the above is accomplished in the complete absence of deconvolution, and said non-linear correction function includes a normalization factor to normalize the impulse response and provision for modifying the latter to compensate for energy pulse attenuation in the material to render it more accurate by satisfying the known boundary conditions of said layered material.
REFERENCES:
patent: 2825044 (1958-02-01), Peterson
patent: 3226535 (1965-12-01), Thompson
patent: 3256733 (1966-06-01), Carlin
"Attenuation Measurements Using the Pulse-Echo AB Method...." by L. C. Lynnworth From Material Evaluation, Jan. 1973, pp. 6-16.
Beretsky Irwin
Lightenstein Bernard
Gill James J.
Rockwell Stephen E.
Romano, Jr. J. J.
Technicon Instruments Corporation
Tedesco S. P.
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