Accession Number : ADD002950

Title :   Comparator Circuit for Automatic Analysis Apparatus.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON D C

Personal Author(s) : Neeley,William E ; Wardlaw,Stephen C ; Swinnen,Maurice E T

Report Date : 08 Jun 1976

Pagination or Media Count : 7

Abstract : The invention concerns an automatic continuous-flow fluid analyzer of the type wherein a stream of fluid, segmented by air bubbles or other separating medium inert to the fluid to be analyzed, passes through a colorimeter flow cell. The bubble artifact is eliminated from the photoconductor signal while allowing the signal produced from the fluid segment to remain intact. This is accomplished by means of a signal comparator which operates as a digitally controlled differentiator, but could alternatively be a purely analog differentiator. The signal comparator through continual signal comparisons momentarily samples and stores a photoconductor output.

Descriptors :   *Patents, *Analyzers, *Bubbles, Comparators, Colorimetry, Laboratory equipment, Performance tests, Monitors, Fluid flow

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE