Bilateral comparison for determining the dynamic characteristic values of contact thermometers in fluids
In applicable standards and sets of rules (VDI/VDE, 2014; DIN, 2010, 2017), recommendations are made concerning the types of experiments for determining the dynamic parameters in fluids (flowing water and flowing air) under well-defined conditions. In the data sheets of the thermometer manufactur...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2018-05-01
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| Series: | Journal of Sensors and Sensor Systems |
| Online Access: | https://www.j-sens-sens-syst.net/7/331/2018/jsss-7-331-2018.pdf |
| _version_ | 1811236736195362816 |
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| author | S. Augustin T. Fröhlich M. Schalles S. Krummeck |
| author_facet | S. Augustin T. Fröhlich M. Schalles S. Krummeck |
| author_sort | S. Augustin |
| collection | DOAJ |
| description | In applicable standards and sets of rules (VDI/VDE, 2014; DIN, 2010, 2017),
recommendations are made concerning the types of experiments for determining
the dynamic parameters in fluids (flowing water and flowing air) under
well-defined conditions. In the data sheets of the thermometer manufacturers,
quite different specifications can be found, such as time percentage values or
time constants. Only a few thermometer manufacturers specify the medium and
flow conditions under which these parameters have been determined. Above all,
it is not common practice to indicate a measurement uncertainty for the
dynamic parameters found. In Augustin et al. (2017), a first model for the
indication of the measurement uncertainty of dynamic parameters in flowing
air was presented.<br><br>The present paper describes the results of a bilateral comparison made for
the first time for determining dynamic parameters in the laboratories of the
JUMO GmbH & Co. KG Fulda company and at the Institute of Process
Measurement and Sensor Technology of the TU Ilmenau. In doing so, two type-N
thermocouples with different diameters were investigated in experimental
facilities with flowing water and flowing air. Subsequently, the dynamic
parameters found were compared with each other. The differences revealed
mainly resulted from plant-specific parameters. |
| first_indexed | 2024-04-12T12:13:12Z |
| format | Article |
| id | doaj.art-2a873bbe544041bb8d778a52930b67e4 |
| institution | Directory Open Access Journal |
| issn | 2194-8771 2194-878X |
| language | English |
| last_indexed | 2024-04-12T12:13:12Z |
| publishDate | 2018-05-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Journal of Sensors and Sensor Systems |
| spelling | doaj.art-2a873bbe544041bb8d778a52930b67e42022-12-22T03:33:30ZengCopernicus PublicationsJournal of Sensors and Sensor Systems2194-87712194-878X2018-05-01733133710.5194/jsss-7-331-2018Bilateral comparison for determining the dynamic characteristic values of contact thermometers in fluidsS. Augustin0T. Fröhlich1M. Schalles2S. Krummeck3Institute of Process Measurement and Sensor Technology, TU Ilmenau, 98693 Ilmenau, GermanyInstitute of Process Measurement and Sensor Technology, TU Ilmenau, 98693 Ilmenau, GermanyInstitute of Process Measurement and Sensor Technology, TU Ilmenau, 98693 Ilmenau, GermanyJUMO GmbH & Co. KG, 36039 Fulda, GermanyIn applicable standards and sets of rules (VDI/VDE, 2014; DIN, 2010, 2017), recommendations are made concerning the types of experiments for determining the dynamic parameters in fluids (flowing water and flowing air) under well-defined conditions. In the data sheets of the thermometer manufacturers, quite different specifications can be found, such as time percentage values or time constants. Only a few thermometer manufacturers specify the medium and flow conditions under which these parameters have been determined. Above all, it is not common practice to indicate a measurement uncertainty for the dynamic parameters found. In Augustin et al. (2017), a first model for the indication of the measurement uncertainty of dynamic parameters in flowing air was presented.<br><br>The present paper describes the results of a bilateral comparison made for the first time for determining dynamic parameters in the laboratories of the JUMO GmbH & Co. KG Fulda company and at the Institute of Process Measurement and Sensor Technology of the TU Ilmenau. In doing so, two type-N thermocouples with different diameters were investigated in experimental facilities with flowing water and flowing air. Subsequently, the dynamic parameters found were compared with each other. The differences revealed mainly resulted from plant-specific parameters.https://www.j-sens-sens-syst.net/7/331/2018/jsss-7-331-2018.pdf |
| spellingShingle | S. Augustin T. Fröhlich M. Schalles S. Krummeck Bilateral comparison for determining the dynamic characteristic values of contact thermometers in fluids Journal of Sensors and Sensor Systems |
| title | Bilateral comparison for determining the dynamic characteristic values of contact thermometers in fluids |
| title_full | Bilateral comparison for determining the dynamic characteristic values of contact thermometers in fluids |
| title_fullStr | Bilateral comparison for determining the dynamic characteristic values of contact thermometers in fluids |
| title_full_unstemmed | Bilateral comparison for determining the dynamic characteristic values of contact thermometers in fluids |
| title_short | Bilateral comparison for determining the dynamic characteristic values of contact thermometers in fluids |
| title_sort | bilateral comparison for determining the dynamic characteristic values of contact thermometers in fluids |
| url | https://www.j-sens-sens-syst.net/7/331/2018/jsss-7-331-2018.pdf |
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