Intake air quantity measuring apparatus

摘要

The invention is directed to an arrangement for measuring intake air quantity and producing an output signal with a slow approach to the final value of the signal effectively compensated. A measuring bridge senses a flow speed of the intake air and a measuring circuit provides a first signal in response to the flow speed. A differentiator differentiates the first signal and provides a second signal. An adder receives the first and second signals, and adds the latter to the former to produce the output signals. The arrangement may be provided with a limiter which limits an input or an output of the differentiator to a predetermined value.