Academic Journal
Study of the influence of a fastchanging temperature on metrological characteristics of the tensoresistive pressure sensor
| Title: | Study of the influence of a fastchanging temperature on metrological characteristics of the tensoresistive pressure sensor |
|---|---|
| Authors: | Tykhan, Myroslav, Repetylo, Taras, Dilay, Ihor, Markovych, Viktor |
| Source: | Eastern-European Journal of Enterprise Technologies; Том 1, № 7 (91) (2018): Applied mechanics; 30-37 Восточно-Европейский журнал передовых технологий; Том 1, № 7 (91) (2018): Прикладная механика; 30-37 Східно-Європейський журнал передових технологій; Том 1, № 7 (91) (2018): Прикладна механіка; 30-37 |
| Publisher Information: | Private Company Technology Center, 2018. |
| Publication Year: | 2018 |
| Subject Terms: | 0301 basic medicine, 0303 health sciences, 03 medical and health sciences, сенсор тиску, мембрана, термонапруження, швидкозмінна температура, метрологічні характеристики, pressure sensor, membrane, fast-changing temperature, metrological characteristics, UDC 539.30, 681.586.326, 62–278, сенсор давления, термонапряжения, быстропеременная температура, метрологические характеристики |
| Description: | Based on dependences that describe the nonstationary temperature fields in the membrane and casing of the tensoresistive pressure sensor, we derived equations for thermomechanical processes in these elements, specifically equations of thermal deformation and thermal stresses. These equations make it possible to explore the effect of a thermal deflection in the membrane, as well as thermal stresses and thermal deformations in it, on the static and dynamic characteristics of the sensor. It is shown that the combination of thermal elastic processes in the membrane under a fast-changing effect of temperature on it significantly distorts the static and dynamic characteristics. It was established that during thermal deflection relative deformations on the surface of the membrane can be commensurate with the working deformations during pressure measurement, while a transitional characteristic of the sensor may differ from normal by up to 60 %. Our research shows that it is possible, when enabling radial thermal deformation, synchronized with the membrane of the sensor's casing, in the region of coupling with the membrane, to minimize thermal stresses in it. In addition, by minimizing the heat transfer along the perimeter of the sensor's membrane it is possible to eliminate the gradient of a temperature field along the radius. This is the way to minimize a thermal deflection of the membrane and decrease a temperature error of the sensor. Employing such measures may substantially reduce the influence of a fast-changing temperature on metrological characteristics of the sensor. |
| Document Type: | Article |
| File Description: | application/pdf |
| ISSN: | 1729-4061 1729-3774 |
| DOI: | 10.15587/1729-4061.2018.123391 |
| Access URL: | http://journals.uran.ua/eejet/article/download/123391/119051 http://journals.uran.ua/eejet/article/download/123391/119051 http://journals.uran.ua/eejet/article/view/123391 http://journals.uran.ua/eejet/article/view/123391 |
| Rights: | CC BY |
| Accession Number: | edsair.doi.dedup.....f69b1bcc2a4adbc9a4ae747588db2e43 |
| Database: | OpenAIRE |
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