Readout circuit in an automatic chemical testing apparatus
US4236894A · kind A · utility
27Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 30, 1979 |
| Grant date | Dec 2, 1980 |
| Priority date | — |
| Expiry date | Aug 30, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/11
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.