METHOD TO INCREASE ACCURACY OF MEASUREMENT OF ANALOG SIGNAL, DEVICE FOR MEASUREMENT OF ANALOG SIGNAL

摘要

FIELD: measurement equipment.SUBSTANCE: invention relates to analog-to-digital measurement techniques to measure an analogue signal. In the proposed method measuring the analog signal is carried out using the ADC, and at the same time the error in the form of the said linear displacement of readings is reduced by control means to compensate for this by the linear displacement, and the error in the form of these oscillations is reduced with the help of readings averaging means by averaging readings during averaging time C, using the control means to compare the rate of change of the analog signal with a predetermined threshold value. Averaging of readings is performed dynamically by changing the control means using the averaging time from zero to a predetermined maximum value in the event of changes in the analog signal at a speed less than the preset threshold. In case of exceeding the specified speed preset threshold specified averaging of readings is stopped by control means.EFFECT: improving accuracy of analog signal measuring by measuring the rate of change of an analog signal with a predetermined threshold value.4 cl, 1 dwg