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Modeling, design, fabrication and characterization of a biomimetic angular acceleration sensor

van Tiem, J.A.J. (2014) Modeling, design, fabrication and characterization of a biomimetic angular acceleration sensor.

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Abstract:This thesis describes the modeling, design, fabrication and characterization of amicromachined and a 3D printed angular acceleration sensor inspired by the human vestibular system. Both sensors comprise a fully circular channel filled with water. When the sensor is subjected to an angular acceleration, the fluid will start to move relative to the channel due to its inertia. This fluid movement is sensed. The micromachined sensor uses thermal readout principles. This technique measures the flow velocity by means of heat convection through the liquid. An analytical model describing the sensor in the space and frequency domain has been constructed and is in accordance with numerical simulations. A variety of designs has been made and the sensors have been fabricated successfully. Electromagnetic flow sensing is used in the 3D printed sensors. This principle of flow measurement is based on the potential difference that arises when a conducting liquid moves through a magnetic field. An analytical model describing the physics of the sensor has been constructed. Electromagnetic readout has been demonstrated for an alternating magnetic field.
Item Type:Essay (Master)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:53 electrotechnology
Programme:Electrical Engineering MSc (60353)
Link to this item:http://purl.utwente.nl/essays/66597
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