FIELD: physics.
SUBSTANCE: method of measuring concentration of substances in media involves interaction of a sample of the test medium with a capacitive or inductive sensor connected into an oscillatory circuit, measurement of parametres of the oscillatory circuit, comparison thereof with standard values for samples of the test media and assessment of the comparison results. Immediately before measurement, parametres of the oscillatory circuit are determined in the absence of any interaction of the sample with the sensor, and depending on this measured value of the parametre of the oscillatory circuit, the standard relationships for samples of the test media are selected, and characteristics of the test medium are determined from the given standard relationships depending on the value of the measured parametre of the oscillatory circuit when the sample of the test medium interacts with the sensor.
EFFECT: high reliability of measurement in production conditions, in particular when measuring temperature indoors.
3 dwg
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