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Calibration of Inertial Measurement Units Using Pendulum Motion
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 Title & Authors
Calibration of Inertial Measurement Units Using Pendulum Motion
Choi, Kee-Young; Jang, Se-Ah; Kim, Yong-Ho;
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 Abstract
The utilization of micro-electro-mechanical system (MEMS) gyros and accelerometers in low-level inertial measurement unit (IMU) influences cost effectiveness in a positive way under the condition that device error characteristics are fully calibrated. The conventional calibration process utilizes a rate table; however, this paper proposes a new method for achieving reference calibration data from the natural motion of pendulum to which the IMU undergoing calibration is attached. This concept was validated with experimental data. The pendulum angle measurements correlate extremely well with the solutions acquired from the pendulum equation of motion. The calibration data were computed using the regression method. The whole process was validated by comparing the measurement from the 6 sensor components with the measurements reconstructed using the identified calibration data.
 Keywords
Inertial measurement unit;Calibration;Pendulum;MEMS;
 Language
English
 Cited by
1.
Development of a High-Precision Calibration Method for Inertial Measurement Unit,;;;

International Journal of Precision Engineering and Manufacturing, 2014. vol.15. 3, pp.567-575 crossref(new window)
1.
Development of a high-precision calibration method for inertial measurement unit, International Journal of Precision Engineering and Manufacturing, 2014, 15, 3, 567  crossref(new windwow)
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Titterton, D. H., Weston, J. L., Institution of Electrical Engineers, and American Institute of Aeronautics and Astronautics. (2004). Strapdown Inertial Navigation Technology. 2nd ed. Stevenage: Institution of Electrical Engineers.