In this paper we describe the design, implementation and results of multi degree of freedom (DOF) active vibration control for a Coriolis mass-flow meter (CMFM). Without vibration control, environmental vibrational disturbances results in nanometre movement of the fluid-conveying tube which causes erroneous mass-flow measurements. In order to reduce the transmissibility from external vibrations to the internal tube displacement active vibration control is applied.A comparison of a feedback control strategy (adding virtual mass and skyhook damping) and an adaptive feedforward control strategy is made, taking into account the sensor noise levels. Theoretic results are validated with a multi-DOF experimental setup, showing up to 40 dB reduction of the influence of external vibrations. The amount of reduction is limited by the sensor noise levels.
|Title of host publication||Proceedings of the American Control Conference 2015, ACC 2015|
|Place of Publication||Chicago, IL, USA|
|Publication status||Published - 1 Jul 2015|
|Event||2015 American Control Conference, ACC 2015 - Chicago, United States|
Duration: 1 Jul 2015 → 3 Jul 2015
|Conference||2015 American Control Conference, ACC 2015|
|Period||1/07/15 → 3/07/15|