Chemical reaction velocity measuring apparatus

Details Chemical reaction velocity measuring apparatus Chemical reaction velocity measuring apparatus

1975-12-16

1977-07-12

Bauer, Edward S.

Optics: measuring and testing

Inspection of flaws or impurities

Bore inspection

250565, 356201, G01N 2122

Patent

active

040350878

ABSTRACT:
An apparatus for measuring a chemical reaction velocity of a sample whose light absorbance changes in proportion to time, comprises a differential circuit for converting the absorbance signals at two different times into respective first-order differential signals, or an integrating circuit for integrating the variation of absorbance signal at two times into two integrated signals. A subtractor is provided to obtain the difference of the two differential signals or two integrated signals. The output of the subtractor is compared with a standard level by a comparing means so that abnormality signal is indicated when said difference does not fall into the standard level.

REFERENCES:
patent: 3790279 (1974-02-01), Skala
patent: 3901600 (1975-08-01), Johnson et al.

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