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- W2260567952 abstract "The inertial sensing technologies, includingaccelerometers and gyroscopes, have demonstrated invaluableimportance in clinical practices. They allow a precise measurementof human beings’ motion behavior, having built the foundation ofgait analysis, monitoring of physical activities, and prosthesis ofhuman balance disorders. The miniaturization of the device enabledby micro-electro-mechanical system (MEMS) technology is expected toelevate the clinical motion measurement to a new level. In the present work, the principle, design andtesting of a microscale liquid state inertial sensing system,different from traditional inertial sensors using silicon basedsolid materials, for the human body motion measurement isdemonstrated. The sensing technology uses a comparable structure asthe natural motion sensing organ, the human vestibular system, andis expected to provide a new paradigm for the sensing of human bodymotion. The system uses a liquid droplet as the inertial component.Its movement inside the sensor configuration is detected by anarray of addressable electrodes. The relative movement of thedroplet to its frame indicates the direction and magnitude of theexternal acceleration. In order to realize thesensing technology, the work starts with the investigation ofsurface science leading to a superhydrophobic surface, whichenables sensitive droplet motion. Afterwards, the dynamic responseof the liquid droplet to various external stimuli is studied usingboth theoretical and experimental tools. The on-chip electricalmeasurement by the addressable electrode array is obtained with theassistance of a data Acquisition (DAQ) circuitry system.Characterization of the sensing system shows that the system cansensitively detect motion behaviors in the low frequency range,0-20Hz, which covers the frequency range of daily human bodymovement. This technology exhibits promising potential for clinicalmotion measurement, especially for the prosthesis of human balancedisorders. The bio-inspired inertial sensor isexpected to partially or entirely accomplish the motion sensingtask for vestibular disordered patients. Therefore, it can beapplied in the engineering prosthesis system to restore theirbalance function. The sensing system possesses advantages of simplestructure, low cost, low power consumption and immunity to externalelectromagnetic noises, which holds the potential for massapplication in medical practices. In addition,the research in surface wettability regulation, droplet dynamicsand electrical measuring methods also contribute technologyfoundations for digital microfluidicdevices." @default.
- W2260567952 created "2016-06-24" @default.
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- W2260567952 date "2012-01-01" @default.
- W2260567952 modified "2023-09-23" @default.
- W2260567952 title "Bio-Inspired Inertial Sensors for Human Body Motion Measurement" @default.
- W2260567952 hasPublicationYear "2012" @default.
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