Theoretical and experimental assessments of accuracy of nonorthogonal mems sensor arrays
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2018, Vol 3, Issue 9
Abstract
<p class="a">The paper deals with theoretical and practical assessments of nonorthogonal configurations of MEMS sensors based on both the uniaxial gyroscopes and the triaxial inertial measuring units. The main goal of the paper is research of the possibility to use nonorthogonal redundant configurations in navigation applications. Methods of inertial navigation, analytical mechanics, mathematical statistics and simulation were used in the research. Analysis of nonorthogonal redundant configurations of uniaxial MEMS sensor arrays including matrices of directional cosines has been carried out. Description of nonorthogonal redundant MEMS sensor array based on inertial measuring units (MPU-6050) is represented. Tables of directional cosines for nonortogonal redundant MEMS arrays based on inertial measuring units with such constructive elements as triangular and tetragonal pyramids are obtained. The mutual location of measuring axes for these configurations is given. Features of dynamic test including equipment possibilities and technique of random errors determination are described. Using of the three-degree-of-freedom test bench provides the simulation of the developed MEMS sensor arrays in conditions close to the real operation. The theoretical assessment of accuracy of nonorthogonal redundant MEMS sensor arrays based on both the uniaxial gyroscopes and the triaxial inertial measuring units is carried out. The assessment is implemented using correlation matrices of errors. The experimental assessment of the MEMS array based on triaxial inertial measuring units is determined based on the results of the dynamic analysis. The appropriate graphical dependences including graphs of relative variances and histograms of the random errors distribution are presented. Comparative analysis of the obtained assessments is given. The results can be useful for the design of navigation systems, for example, unmanned aerial vehicles or rockets for the launch of satellites into orbit.</p>
Authors and Affiliations
Olha Sushchenko, Yurii Bezkorovainyi, Nataliia Novytska
Keywords
Related Articles
- EP ID EP528016
- DOI 10.15587/1729-4061.2018.131945
- Views 67
- Downloads 0
Research into the influence of vertical drainage elements on the operational efficiency of rapid filters
To improve the efficiency of removal of suspended solids at rapid filters, we designed improved structure of the device. The improvement is based on the application, simultaneously with a granular filter layer, of vertic...
Specific features of defect formation in the nSi <P> single crystals at electron irradiation
Based on measurements of infrared Fourier spectroscopy, Hall effect, and the tensor Hall-effect, we have established the nature, and determined the concentration, of the main types of radiation defects in the single crys...
Improving energy characteristics of ac electric rolling stock by using the three-level active four-quadrant rectifiers
<p>In order to minimize the reactive power and higher harmonics of currents, as well as to improve the electromagnetic compatibility of electrical traction networks and systems of railroad automation, modern electric rol...
On the error-correcting capabilities of iterative error correction codes
<p>The influence of the theory of information on development of the error correcting coding theory has been studied. Main differences between the probabilistic approach and the deterministic approach in the analysis of e...
Numerical methods for contact analysis of complex-shaped bodies with account for non-linear interface layers
<p>In order to ensure high technical characteristics of machines for various applications, it is necessary to increase the strength of the most loaded and heavy-duty elements of constructions, which are complex-shaped co...