New, Optimized Skin Calorimeter Version for Measuring Thermal Responses of Localized Skin Areas during Physical Activity
We present an optimized version of the skin calorimeter for measuring localized skin thermal responses during physical activity. Enhancements include a new holding system, more sensitive thermopiles, and an upgraded spiked heat sink for improved efficiency. In addition, we used a new, improved calor...
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MDPI AG
2024-09-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/24/18/5927 |
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| author | Miriam Rodríguez de Rivera Pedro Jesús Rodríguez de Rivera |
| author_facet | Miriam Rodríguez de Rivera Pedro Jesús Rodríguez de Rivera |
| author_sort | Miriam Rodríguez de Rivera |
| collection | DOAJ |
| description | We present an optimized version of the skin calorimeter for measuring localized skin thermal responses during physical activity. Enhancements include a new holding system, more sensitive thermopiles, and an upgraded spiked heat sink for improved efficiency. In addition, we used a new, improved calorimetric model that takes into account all the variables that influence the measurement process. Resolution in power measurement is 1 mW. Performance tests under air currents and movement disturbances showed that the device maintains high accuracy; the deviation produced by these significant disturbances is less than 5%. Human subject tests, both at rest and during exercise, confirmed its ability to accurately measure localized skin heat flux, heat capacity, and thermal resistance (less than 5% uncertainty). These findings highlight the calorimeter’s potential for applications in sports medicine and physiological studies. |
| format | Article |
| id | doaj-art-a8370fd7cb2d4ff5929ccdd53e28348f |
| institution | OA Journals |
| issn | 1424-8220 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-a8370fd7cb2d4ff5929ccdd53e28348f2025-08-20T01:55:50ZengMDPI AGSensors1424-82202024-09-012418592710.3390/s24185927New, Optimized Skin Calorimeter Version for Measuring Thermal Responses of Localized Skin Areas during Physical ActivityMiriam Rodríguez de Rivera0Pedro Jesús Rodríguez de Rivera1Cardiology Service, Hospital Universitario Marqués de Valdecilla, 39008 Santander, SpainDepartment of Physics, University of Las Palmas de Gran Canaria, 35001 Las Palmas de Gran Canaria, SpainWe present an optimized version of the skin calorimeter for measuring localized skin thermal responses during physical activity. Enhancements include a new holding system, more sensitive thermopiles, and an upgraded spiked heat sink for improved efficiency. In addition, we used a new, improved calorimetric model that takes into account all the variables that influence the measurement process. Resolution in power measurement is 1 mW. Performance tests under air currents and movement disturbances showed that the device maintains high accuracy; the deviation produced by these significant disturbances is less than 5%. Human subject tests, both at rest and during exercise, confirmed its ability to accurately measure localized skin heat flux, heat capacity, and thermal resistance (less than 5% uncertainty). These findings highlight the calorimeter’s potential for applications in sports medicine and physiological studies.https://www.mdpi.com/1424-8220/24/18/5927conduction calorimetrydirect calorimetryskin heat fluxskin calorimeterskin thermal propertiessports medicine sensors |
| spellingShingle | Miriam Rodríguez de Rivera Pedro Jesús Rodríguez de Rivera New, Optimized Skin Calorimeter Version for Measuring Thermal Responses of Localized Skin Areas during Physical Activity Sensors conduction calorimetry direct calorimetry skin heat flux skin calorimeter skin thermal properties sports medicine sensors |
| title | New, Optimized Skin Calorimeter Version for Measuring Thermal Responses of Localized Skin Areas during Physical Activity |
| title_full | New, Optimized Skin Calorimeter Version for Measuring Thermal Responses of Localized Skin Areas during Physical Activity |
| title_fullStr | New, Optimized Skin Calorimeter Version for Measuring Thermal Responses of Localized Skin Areas during Physical Activity |
| title_full_unstemmed | New, Optimized Skin Calorimeter Version for Measuring Thermal Responses of Localized Skin Areas during Physical Activity |
| title_short | New, Optimized Skin Calorimeter Version for Measuring Thermal Responses of Localized Skin Areas during Physical Activity |
| title_sort | new optimized skin calorimeter version for measuring thermal responses of localized skin areas during physical activity |
| topic | conduction calorimetry direct calorimetry skin heat flux skin calorimeter skin thermal properties sports medicine sensors |
| url | https://www.mdpi.com/1424-8220/24/18/5927 |
| work_keys_str_mv | AT miriamrodriguezderivera newoptimizedskincalorimeterversionformeasuringthermalresponsesoflocalizedskinareasduringphysicalactivity AT pedrojesusrodriguezderivera newoptimizedskincalorimeterversionformeasuringthermalresponsesoflocalizedskinareasduringphysicalactivity |