Calibration of cross quadratic term of gyro accelerometer on centrifuge and error analysis

In order to calibrate the cross quadratic term of gyro accelerometer on precision centrifuge precisely and effectively, the original mechanism of cross quadratic term is analyzed at first, then the calibration model of gyro accelerometer on centrifuge is established, and the calibration method is de...

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Bibliographic Details
Published inAerospace science and technology Vol. 43; pp. 30 - 36
Main Authors Wang, Shiming, Ren, Shunqing
Format Journal Article
LanguageEnglish
Published Elsevier Masson SAS 01.06.2015
Subjects
Accelerometers
Aerospace sciences
Calibration
Calibration accuracy
Centrifuge errors
Centrifuges
Coefficients
Cross quadratic term
Dynamics
Error analysis
Errors
Gyro accelerometer
Precision centrifuge
Cross quadratic term
Precision centrifuge
Centrifuge errors
Calibration accuracy
Gyro accelerometer
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Summary:In order to calibrate the cross quadratic term of gyro accelerometer on precision centrifuge precisely and effectively, the original mechanism of cross quadratic term is analyzed at first, then the calibration model of gyro accelerometer on centrifuge is established, and the calibration method is designed afterwards. Based on the method, the precise input specific force and input angular rate of gyro accelerometer tested on centrifuge are given, and the dynamic errors of centrifuge are compensated, simultaneously the static errors of centrifuge are restrained. Applying this method in real calibration, the cross quadratic term is identified successfully which improves the calibration accuracy of second-order coefficient, and finally the effectiveness of method is verified through error analysis.
Bibliography:ObjectType-Article-1
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content type line 23
ISSN:1270-9638
1626-3219
DOI:10.1016/j.ast.2015.02.008