By Jozef Živčák, Radovan Hudák, Ladislav Madarász, Imre J. Rudas
This booklet offers the method and strategies of thermographic purposes with concentration totally on scientific thermography carried out for parametrizing the diagnostics of the human physique. the 1st a part of the ebook describes the fundamentals of infrared thermography, the probabilities of thermographic diagnostics and the actual nature of thermography. the second one part contains instruments of clever engineering utilized for the fixing of chosen purposes and initiatives. Thermographic diagnostics was once utilized to problematics of paraplegia and tetraplegia and carpal tunnel syndrome (CTS). the result of the learn actions have been created with the cooperation of the 4 initiatives in the Ministry of schooling, technology, learn and activity of the Slovak Republic entitled electronic regulate of advanced structures with levels of freedom, revolutionary equipment of schooling within the sector of keep watch over and modeling of advanced item orientated platforms on airplane turbocompressor engines, heart for learn of regulate of technical, environmental and human dangers for everlasting improvement of construction and items in mechanical engineering and study of recent diagnostic tools in invasive implantology.
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Additional info for Methodology, Models and Algorithms in Thermographic Diagnostics
J. , Models & Algorithms in Thermogr. Diagnostics, TIEI 5, pp. 31–54. 1007/978-3-642-38379-3_3 © Springer-Verlag Berlin Heidelberg 2013 32 3 Physical Nature of Thermography Fig. 33 Block diagram – temperature as the basic screened parameter KINETIC ENERGY – All bodies around us (liquid, gas, and solid elements) are created by molecules that move continually. This movement is not visible directly, but has an energy value which can be obtained by counting all the moving atoms and molecules. This energy is then called the inner energy of a body and it is marked with “U”.
An endothermic organism is able to produce heat into the environment, and thus regulate its own body temperature. Stable body temperature is understood as a circadian cycle of regular changes, that is, body temperature changes in one place over a 24-hour period, as body activity changes from 1 to 3°C. At extreme conditions, body temperature may fall depending on the external temperature (hypothermia) or it may rise extremely (hyperthermia), depending on the external temperature. In such cases, the thermoregulatory mechanisms are not able to balance the thermal changes.
Receptors for heeat (Ruffini's corpuscle) are placed deeper in middle parrts of epidermis and they reeact within a temperature range of 30 - 48 °C, with a maximum at 42 °C. Witthin 30 up to 42 °C, both systems are active. g. chemical (menthol – feeling of cold). The thrreshold for a heat receptor (or a thermal receptor) is a temperature increase of 0,,001 °C in a second; for cold receptors it is a temperaturre decrease of 0,004 °C in a second. For both receptors, the impulses are active foor approximately 3 seconds..