An apparatus to determine the average value of a variable electrical magnitude as a time function (Machine-translation by Google Translate, not legally binding)

摘要

Apparatus for determining the average value of a variable electric variable as a function of time, characterized in that an integrating device forms the integral of a quantity as a function of the time applicable to the device, which device is connected to the input of the device and contains an element sensitive to the integral value with properties such for a certain value of it is set to zero with a graphic record connected to the integrating device. (Machine-translation by Google Translate, not legally binding)