In recent years, the performances of gyroscopes and accelerometers manufactured by the Micro-Electro-Mechanical System (MEMS) technology have been continuously improved with prominent advantages of small volume, light...
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In recent years, the performances of gyroscopes and accelerometers manufactured by the Micro-Electro-Mechanical System (MEMS) technology have been continuously improved with prominent advantages of small volume, light weight and so ***, MEMS inertial measurement units (MEMS IMU) consist of three-axis MEMS gyroscopes and three-axis MEMS accelerometers and have been gradually applied in strapdown inertial navigation systems in different situations, especially in tactical level navigation system and GPS/INS combined navigation system [1].However, the silicon which is the main composition material of MEMS IMU is sensitive to temperature, and at the same time, other circuit element features also change with the environmental temperature, therefor the temperature variation has a great influence on the bias of MEMS *** inertial navigation, with the increase of time, the error caused by temperature will be on the rise rapidly without compensation.
This paper presents a wearable piezoelectric generator in order to explore the possibility of harvesting energy from human motion to supply power for wearable or portable electronics, thus acting as alternatives to th...
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This paper presents a wearable piezoelectric generator in order to explore the possibility of harvesting energy from human motion to supply power for wearable or portable electronics, thus acting as alternatives to the use of *** generator is characterized by a high durability and portability, which is thin enough to be placed in a shoe or a bag *** prototypes has been built and tested both by a material testing system (MTS) and by human motion during walking at 1 *** prototype enables a mean output power of 1 mW, namely 1 mJ per *** seems that the generator cannot provide sufficient energy to run electronics continuously, therefore two methods are proposed to make the generator compatible with *** work demonstrates the feasibility of harvesting the mechanical energy dissipated in human motion for powering low-power electronics.
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