A New Current Integrator

In many industrial processes, it is necessary to integrate rate of flow signals to obtain total flow of a fluid for a given period of time. An electronic solid-state instrument that will perform the function of integrating a rate of flow signal has been designed to accept an electronic signal from a rate of flow transmitter and provide an output count that is proportional to the integral or to the integral of the square root of the incoming signal. In this manner, the input signal may be linear or follow a square law which is the case when an orifice meter is used as the primary transmitter. The electronic design eliminates mechanical parts (excluding the counter) providing better accuracies and complete adjustability of the output count rate within the operating limits of the instrument.