Оптимізація роботи приладової системи вимірювання напружено – деформованого стану складних технічних об’єктів та систем
dc.contributor.author | Кузьмич, Л. В. | |
dc.date.accessioned | 2023-04-26T12:40:16Z | |
dc.date.available | 2023-04-26T12:40:16Z | |
dc.date.issued | 2019 | |
dc.description.abstractother | Nowadays the modern wave of intellectualization of measuring instruments proposes the digital methods of correction are acquired not only for primary measuring transducers, but also for secondary sensors. Since the conversion function of the secondary measuring transducers is linear, the method of the model measures by two points is used for automatic correction of the systematic components of the errors of such converters. The method of digital compensation was describe [4], which provides a more significant reduction in the errors of measuring transducers compared with the method of analog compensation. Features and technical indicators of this method are considered on an example of measuring pressure transducer with foil strain gauges. This method is universal, allows us to adjust not only the errors of the measurement channel nonlinearity and additional errors, but also the errors associated with the effect of interferences of the general type due to ground resistance, which induces the connection between the measuring channels of the main and destabilizing factor. The disadvantages of this method include a significant amount of computations, which sharply increases with increasing order of approximating polynomials. The purpose is to develop a method and means of measuring stress - strain state using strain gauge, free from the above - mentioned shortcomings. The main destabilizing factors that limit the measurement accuracy using strain gauge are: - Random processes (noises, obstacles, etc.); - Changes in parameters of measuring transducers due to aging and physical degradation; - Effects of external climatic and mechanical factors (temperature, humidity, etc.). Regarding the systematic components, the most important in statistical measurements are the errors of nonlinearity and the temperature component of the error. We studied the influence of temperature range variations, the spread of values of temperature error ( 10%) on the mean square error of approximation by power polynomials. Using the NUMERY Program, the dependence of the approximation error on the order of the approximating polyphony was determined. It is established that in a wide temperature range, the error for constantan has a weak relation with the order of a polynomial. | uk |
dc.format.pagerange | С. 109-117 | uk |
dc.identifier.citation | Кузьмич, Л. В. Оптимізація роботи приладової системи вимірювання напружено – деформованого стану складних технічних об’єктів та систем / Л. В. Кузьмич // Механіка гіроскопічних систем : науково-технічний збірник. – 2019. – Вип. 37. – С. 109-117. – Бібліогр.: 11 назв. | uk |
dc.identifier.doi | http://doi.org/10.20535/0203-3771372019171900 | |
dc.identifier.uri | https://ela.kpi.ua/handle/123456789/54983 | |
dc.language.iso | uk | uk |
dc.publisher | КПІ ім. Ігоря Сікорського | uk |
dc.publisher.place | Київ | uk |
dc.relation.ispartof | Механіка гіроскопічних систем: науково-технічний збірник, Вип. 37 | uk |
dc.subject.udc | 043.5 | uk |
dc.title | Оптимізація роботи приладової системи вимірювання напружено – деформованого стану складних технічних об’єктів та систем | uk |
dc.type | Article | uk |
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