With the rapid development of Micro Electromechanical System (MEMS), the Micro Inertial Measurement Unit (MIMU) has gradually showed its excellent performance, and the integrated navigation system consisting of MIMU and Global Positioning System (GPS) has become the research focus.
With the rapid development of Micro Electromechanical System (MEMS), the Micro Inertial Measurement Unit (MIMU) has gradually showed its excellent performance, and the integrated navigation system consisting of MIMU and Global Positioning System (GPS) has become the research focus.
As a test project of micro inertial measurement unit(MIMU) with micro electromechanical system(MEMS),this paper introduces the test approach and the test results of main specification of MEMS inertial sensors,and gives the attitude performance results from the output data of MIMU.
In this thesis, we focus on the key technologies of "CAD system of MIMU which based on FPGA/CPLD" and we describe the technologies in this order:1. Circuit design based on FPGA/CPLD.
This paper is a summary of advance of micromechanical inertial instruments abroad. The principes, strucres, electronical assemblies and performance indexes of micromachined sillicon accelerometer, micromachined sillicon gyroscope and micro inertial measurement unit are introduced respectively. The prospects of application and technical ways of development are investigated preliminary.
The advance in micromechanical inertial instruments (including micromechanical gyroscopes,micromechanical accelerometers and micro inertial measurement units) all over the world are introduced in this paper.Their construction schemes,electronic circuit principles and fabrication processes are described.Their advantages and defects are compared with each other.The applicable technique pathway of developing the micromechanical inertial instruments in our country is suggested .
An inertial navigational system with high anti g capability, low power consumption, small volume and low cost is needed on certain specific occasions. By using linear accelerometers unit at the different positions in space, a non-gyro micro inertial measuring unit is used to calculate the angular velocity and sense the axial acceleration of the carrier. A feasible inertial navigational system with medium accuracy can be designed in this way. The nine accelerometers were improved based on researched by fo...