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For testing rolling angular rate and axial acceleration of rocket projectile, sensors with high anti-impact capability are needed. MEMS-based inertial sensor is adaptive to the high shock circumstance. This work introduces a measuring system based on MEMS gyros and MEMS accelerometer. By set MEMS inertial sensor in air delivery land mine of rocket, use polyurethane plotting the sensor and circuit...
Airborne three line sensors now play more and more important role in large scale mapping, earth resource exploration, cyber city and other GIS applications. It can provide three stereo models for photogrammetric reconstitution. During the image acquisition, the equipped GPS/IMU system records the position and attitude data simultaneously and provides airborne sensors the capability of direct geopositioning...
In order to increase the capacitive accelerometer testing accuracy, to increase its usefulness, the comb-capacitive accelerometer is selected, the use of capacitive differential detection principle to detect acceleration changes; Based on the capacitance charge-discharge characteristics, design the small differential capacitance detection circuit, including C-V converter, differential amplification,...
Thermal modeling of the power transformer to estimate the internal temperature only reflects the winding hot spot to a certain extent. The application of optical fiber sensors to measure transformer internal temperature directly can obtain the true temperature with high accuracy and stability and overcome the shortcomings of traditional electric sensors. This paper analyses the measuring principle...
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