FIELD: measurement technology.
SUBSTANCE: device can be used for estimating linear distortions in amplifying stages. Toa achieve the result, any value of standardized amplitude-frequency characteristic is reduced for one unit and then absolute value is selected from received value. Value received which has to be a frequency function is subject to integration within tested frequency range. After it the value is measured achieved as a result of integration. In this case the measured value has to be estimation of frequency distortions.
EFFECT: improved precision of measurement.
2 cl, 1 dwg
