By Jose Ignacio Priego Quesada
This publication addresses the appliance of infrared thermography in activities, studying the most merits of this non-invasive, non-radiating and inexpensive strategy. elements lined contain the detection of accidents in activities medication, the evaluation of activities functionality as a result of latest hyperlink among actual health and thermoregulation and the research of warmth move for activities clothing and activities gear. even though infrared thermography is extensively thought of to be a quick and easy-to-use software, the facility to convey actual and repeatable measurements is a vital attention. additionally, you will need to be acquainted with the newest activities reports released in this strategy to comprehend its strength and boundaries. hence, this publication establishes an important hyperlink among laboratory checks and the activities box.
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Extra resources for Application of Infrared Thermography in Sports Science
Most of the infrared cameras and radiation thermometers made the calculations using the modiﬁed Stefan-Boltzmann’s equation . 5. 4) where the value of the emissivity (e) is incorporated Wien’s displacement law and Stefan-Boltzmann law were obtained experimentally before 1900. 6. Planck’s law. 38054 * 10−23 W s K−1) 2 Physics Principles of the Infrared Thermography … 37 Integrating Planck’s law for all frequencies leads to the Stefan-Boltzmann’s law . Applying the function maximum condition to the Plank equation (ﬁrst derivative equal to zero) the Wien’s displacement law is obtained.
There are different scales for measuring temperature and the most well known are the degree Celsius, Kelvin and degree Fahrenheit. The degree Celsius is used by most countries in the world. 1. Fahrenheit to Celsius formula ð2:1Þ 2 Physics Principles of the Infrared Thermography … 27 However, in the international system of units, the temperature is expressed using the Kelvin scale (K). 16 °C). The Kelvin scale is used in all aspects related to the physics of thermography. The term heat, therefore, should be understood as heat transfer and only occurs when there is a temperature difference between two bodies.
After knowing the physical laws that explain the calculation of the temperature using infrared radiation, it is important to understand the radiative characteristics of one body in terms of its absorptivity, emissivity, reflectivity and transmissivity. 5 Radiative Characteristics of the Bodies Infrared radiation has a behavior very similar to visible radiation. For this reason, its propagation can be described in the same way as the geometric optics . In homogeneous materials, infrared radiation propagates in a straight line as if it were rays.
Application of Infrared Thermography in Sports Science by Jose Ignacio Priego Quesada