Turbine flow meter with adaptive sample frequency

摘要

Turbine anemometer for determining mass flow rate in which the rotation rate of the anemometer is reproduced electronically using inductive or capacitive sampling. The rate of rotation of the anemometer is a measure of the flow rate and the signal is sampled to detect a change in the signal height that corresponds to a rotation of the anemometer. To minimize power use, the sampling rate is matched to the anemometer rotation speed. The invention also relates to a flow meter or anemometer with a microprocessor and program for optimizing the signal sampling rate.