Harmen Droogendijk publishes parametric effects in biomimetic flow-sensors in Applied Physics Letters

The article "Non-resonant parametric amplification in biomimetic hair flow sensors: Selective gain and tunable filtering" has been published online in Applied Physics Letters. In the paper it is demonstrated that the responsivity of flow sensors for harmonic flows can be improved significantly by non-resonant parametric amplification. Using electrostatic spring softening by AC-bias voltages, increased responsivity and sharp filtering are achieved in our biomimetic flow sensors. Tunable filtering is obtained for non-resonant electromechanical parametric amplification, applicable at a wide range of non-resonant frequencies while achieving highly selective gain of up to 20 dB. The paper is available from the American Institute of Physics.