In this paper, an inertial sensor exploiting the effect of external stimuli on a ferrofluid spike is presented. The device consists of a glass pipe filled with water where a mass of ferrofluid is fixed to the pipe wall and spike shaped by a suitable magnetic-field configuration. An external perturbation will produce a movement of the spike free end, which is sensed via an infrared readout strategy. A theoretical analysis of the sensing methodology is performed, along with experiments on a laboratory-scale prototype confirming the expected behavior of the device.
In this paper, an inertial sensor exploiting the effect of external stimuli on a ferrofluid spike is presented. The device consists of a glass pipe filled with water where a mass of ferrofluid is fixed to the pipe wall and spike shaped by a suitable magneticfield configuration. An external perturbation will produce a movement of the spike free end, which is sensed via an infrared readout strategy. A theoretical analysis of the sensing methodology is performed, along with experiments on a laboratory-scale prototype confirming the expected behavior of the device.
A low-cost inertial sensor based on shaped magnetic fluids
ANDO', Bruno;BAGLIO, Salvatore;
2012-01-01
Abstract
In this paper, an inertial sensor exploiting the effect of external stimuli on a ferrofluid spike is presented. The device consists of a glass pipe filled with water where a mass of ferrofluid is fixed to the pipe wall and spike shaped by a suitable magneticfield configuration. An external perturbation will produce a movement of the spike free end, which is sensed via an infrared readout strategy. A theoretical analysis of the sensing methodology is performed, along with experiments on a laboratory-scale prototype confirming the expected behavior of the device.| File | Dimensione | Formato | |
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