«Automation and Informatization of the fuel and energy complex»

About one variant of constructing tilt parameters converters with accelerometric sensors

UDC: 681.5:51
DOI: -

Authors:

¹ Penza State University, Penza, Russia
² National University of Oil and Gas "Gubkin University", Moscow, Russia

Keywords: accelerometric sensor, parameters, tilt, rotation, measurement errors

Annotation:

The authors of the article consider the construction and mathematical modeling of a tilt parameter converter with two double-axis accelerometric sensors (acceleration sensors) which has structural and information redundancy. It is proposed to place one of the sensors in the housing in the general layout in such a way that the sensitivity axes of both accelerometers are oriented perpendicular to the longitudinal axis of the housing and to position the second two-axis sensor so that the sensitivity axis of one of the accelerometric sensors coincides with the longitudinal axis of the housing, and the axis of the other accelerometric sensor is placed perpendicular to the longitudinal axis, while in the apsidal plane it is located between the axes the sensitivity of the accelerometric sensors of the first two-axis sensor. It is shown that three combinations of measured signals from accelerometric sensors are possible, and for each combination it is proposed to discretize the full range of the argument into sub-ranges. Algorithms for determining the desired angles in each subrange of the argument based on mathematical models have been developed, and the choice of that or other algorithm is proposed to be based on the criterion of the lowest values of the measured two signals from accelerometric sensors out of three ones. Based on the developed mathematical models, expressions of errors when determining the desired rotation angle in each subrange are obtained. It is shown that in the proposed design of the tilt parameter converter, it is possible to reduce the largest systematic errors by 1,3 times compared with the traditional layout in the form of three orthogonally oriented accelerometers in the body.

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