Readout circuit in an automatic chemical testing apparatus

Details Readout circuit in an automatic chemical testing apparatus Readout circuit in an automatic chemical testing apparatus

1979-08-30

1980-12-02

Serwin, R. E.

Chemistry: physical processes

Physical processes

Crystallization

364498, 364497, 422 68, 422 67, G01N 2175, G01N 3348

Patent

active

042368944

ABSTRACT:
In an automatic chemical testing apparatus in which radiant energy readings are taken from a liquid sample of reacted contents comprising reagent and one or more aliquots, one per channel, of a sample fluid, a statistically large number of readings are taken on each sample. For example, in a readout cycle, 32 readings are taken on each channel for a sample. For an end point chemistry, calculation of an output value is based on the mean of a plurality of readings which are a subset of all readings. For a kinetic chemistry, the output reading is based on a slope of a curve defined by subsets of successive readings.

REFERENCES:
patent: 3873273 (1975-03-01), Moran et al.
patent: 4043756 (1977-08-01), Sommervold
patent: 4052161 (1977-10-01), Atwood et al.
patent: 4095272 (1978-06-01), Janzen

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