KONG Qing-peng, GAO Shuang, LIN Tie, et al. Design and realization of MEMS measurement-while-drilling inertial measurement unit[J]. 2014, 33(3): 103-106.
KONG Qing-peng, GAO Shuang, LIN Tie, et al. Design and realization of MEMS measurement-while-drilling inertial measurement unit[J]. 2014, 33(3): 103-106. DOI: 10.13873/j.1000-97872014.03.003.
Aiming at limitation of flux gate measurement-while-drilling( MWD) and make use of advantages of inertial technology
design and realize MWD inertial measurement unit( IMU) based on micro-electro-mechanical system( MEMS) gyroscopes and MEMS accelerometers which is suitable for strong impact and vibration environment.MEMS gyroscope random drift error is large when testing system
and therefore improved time series analysis method is used to construct random drift model for MEMS gyro.Comparing with conventional time series method
the new method reduces model prediction error
filter MEMS gyro random drift error is more obvious and ensure real-time of data processing
at the same time improve precision.The test results show that the system can be fixed near-bit and achieve corresponding parameter measurement while drilling