METHOD AND MEANS OF MEASURING VELOCITY FLUCTUATIONS IN UNSTEADY FLOW

摘要

A gauge for measuring flow unsteadiness comprising a lift-sensor element having a lift-sensing surface to be presented to flow velocity disturbances perpendicular to a main stream flow to develop a time varying lift force with corresponding displacement responsive to time variations of the velocity disturbances, and means to translate the displacement variations into an alternating current to operate an indicator, and the method of measuring flow unsteadiness utilizing the principle of lift-sensing to detect flow velocity disturbances.