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Full-Text Articles in Mechanical Engineering
Using Multiple Mems Imus To Form A Distributed Inertial Measurement Unit, Ryan D. Hanson
Using Multiple Mems Imus To Form A Distributed Inertial Measurement Unit, Ryan D. Hanson
Theses and Dissertations
MEMS IMUs are readily available in quantity and have extraordinary advantages over conventional IMUs in size, weight, cost, and power consumption. However, the poor performance of MEMS IMUs limits their use in more demanding military applications. It is desired to use multiple distributed MEMS IMUs to simulate the performance of a single, more costly IMU, using the theory behind Gyro-Free IMUs. A Gyro-Free IMU (GF-IMU) uses a configuration of accelerometers only to measure the three accelerations and three angular rotations of a rigid body in 3-D space. Theoretically, almost any configuration of six distributed accelerometers yields sufficient measurements to solve …
Design And Fabrication Of A Micromechanical Gyroscope, Richard M. Kuhns
Design And Fabrication Of A Micromechanical Gyroscope, Richard M. Kuhns
Theses and Dissertations
Both size and cost of mechanical and optical inertial navigation systems (INS) have prevented their use in many applications. By developing a micromachined gyroscope and combining it with existing micromachined accelerometer designs to form a low sensitivity INS, the cost would be reduced by a factor of 10 or more. The lower per unit cost would open new areas for INS use. A second advantage of the micromachined INS would be its size. A micromachined INS would weigh only a few ounces and take significantly less space, allowing more room for electronics and the weight reduction would lead to longer …