Experimental method for estimating the dynamic error of devices and sensors under their operating conditions
https://doi.org/10.17586/2226-1494-2023-23-3-652-658
Abstract
Existing methods and equipment for determining the dynamic characteristics of devices and systems are considered. A new method for estimating the dynamic error of navigation devices is proposed. It makes it possible to simplify the experimental assessment of the dynamic error of serial products as well as to evaluate its value under conditions of real disturbing influences corresponding to operating conditions using test equipment. The method is based on the measurement by the device of pseudo-random test effects reproduced by the stand in a given frequency spectrum corresponding to the operating conditions of the instrument. In this case, the variance of the dynamic error of the device under study is determined as the area under the graph of its power spectral density. To implement the method, it is proposed to use a specialized stand that allows to reproduce oscillations in a given frequency spectrum. The results of the application of the developed method in solving the problems of estimating the dynamic errors of the electronic inclinometer are presented. The results of experimental studies are consistent with the results of field tests obtained earlier. The developed method makes it possible to reduce the time for estimating the dynamic error of sensors and devices to 15–20 minutes because it does not require measurements at each frequency separately, and also allows to evaluate the error of devices in real modes of its operation.
Keywords
Supporting agencies: The study was funded by Russian Science Foundation, Project No. 23-29-00090.
About the Authors
D. G. Gryazin
State Research Center of the Russian Federation Concern CSRI Elektropribor, JSC
Russian Federation
Russian Federation
Dmitry G. Gryazin — D.Sc., Professor, Chief Metrologist, Head of Department
sc 25638150600
Saint Petersburg, 197046
O. O. Belova
State Research Center of the Russian Federation Concern CSRI Elektropribor, JSC
Russian Federation
Russian Federation
Olga O. Belova — PhD, Senior Researcher
sc 57190378217
Saint Petersburg, 197046
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For citations:
Gryazin D.G., Belova O.O. Experimental method for estimating the dynamic error of devices and sensors under their operating conditions. Scientific and Technical Journal of Information Technologies, Mechanics and Optics. 2023;23(3):652-658. (In Russ.) https://doi.org/10.17586/2226-1494-2023-23-3-652-658
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