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Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back
Mathematical modeling of the transducer slope parameters with triaxial the accelerometer |
D.G. MILOVZOROV, V.Kh. YASOVEEV, E.S. MOROZOVA
The article discusses about construction and mathematical models of the three-axis accelerometer transducer for slope parameters
of quasi-stationary and moving objects. The structure of the slope parameters transducer with three-axis accelerometer ADXL326,
having a mutual “non-orthogonality” orientation of the sensitivity axes about ±0,1°. A conversion scheme of the device’s fundamental
basis and the sources of three-axis converters instrumental errors with accelerometer sensor. There were obtained the generalized
mathematical models with various assumptions and without them for slope parameters transducers with three-component accelerometer.
The computer experiment was performed to evaluate the calculation errors for the pitch and roll angles and were drawn the
corresponding characteristics.
The generalized mathematical models allow the software and algorithmic way to carry out the correction of the measured signals from
accelerometers gi(x, y, z). This provides to get a greater accuracy of determination the desired spatial orientation angles θ and φ of quasistationary
and moving objects, reasonably determines invariance the converter to its spatial positioning in the measuring equipment body
within the small angles δi.
Keywords: mathematical model, three-axis accelerometer, slope parameters transducer, pitch angle, roll angle.
Contacts: E-mail: midimka@yandex.ru
Pp. 17-22. |
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