Method for the automatic line calibration of a sensor for measur

Details Method for the automatic line calibration of a sensor for measur Method for the automatic line calibration of a sensor for measur

1989-06-15

1991-01-29

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Electrolyte properties

Using a conductivity determining device

324438, 324439, 324450, 20415313, G01N 2727, G01N 2731

Patent

active

049889486

ABSTRACT:
A method for the automatic line calibration of an electrochemical sensor for measuring the concentration of a liquid phase dissolved electrochemical substance flowing into a pipe and is characterized by the following stages: upstream of the electrochemical sensor, a generator is placed on the pipe, the generator being suitable for delivering standard quantities of the substance; between the generator and the electrochemical sensor, a delay line (3) is placed on the flow with a given volume of this liquid. By way of the generator, successively injected into the liquid pipe are two bursts of known quantities of the electrochemical substance corresponding to the concentration C.sub.1 and C.sub.2 in the liquid flow. From the indications of the electrochemical sensor (4), the delay time introduced by the delay time is determined. The meter constant K of the substance concentration as indicated by the sensor is calculated by producing the ratio of the difference of the indications of the sensor to the difference of the concentrations C.sub.2 -C.sub.1.

REFERENCES:
patent: 4713618 (1987-12-01), Carlson et al.
Patent Abstracts of Japan, vol. 6, No. 248, Dec. 7, 1982; and JP-A-57 147 047 (Olympus Kogaku Kogyo K.K.) 10-09-82.

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