Parametric amplification in a micro Coriolis mass flow sensor: Reduction of power dissipation without loss of sensitivity

We report on the application of parametric amplification to a micro Coriolis mass flow sensor to reduce the system's power dissipation while retaining sensitivity to flow. By reducing this power dissipation, less heat will be transferred to the fluid and channel, potentially resulting in more temperature-stable flow measurements. We show experimentally that parametric amplification can be used to either greatly reduce power dissipation without loss of flow sensitivity, or to increase the overall sensitivity without increased power dissipation.