Temperature ? Offensive that we use almost daily as a matter needless to say, without being made alert to the physical correlations. But how may be the term temperature defined?
Everybody perceives temperature within their environment purely subjectively. If we have been too warm or too cold, this can be a feeling, which might be different from individual to individual ? because not everyone gets cold at exactly the same speed. The term temperature ? or, better, the condition, that influences (among other things) our mind-set ? is chatted about daily when we are discussing the expected temperature from the elements forecast with friends, acquaintances or colleagues.
Temperature
With the term temperature (from the Greek ?thermis? = warm), a specific thermal state of a body is described. Heat is really a measure of the power of a body, which is generated by the random motion of its atoms or molecules within the body?s interior. Here, the temperature is the magnitude of a state which establishes the power content associated with other physical quantities (mass, heat capacity).
Temperature unit
The unit of temperature may be the Kelvin. At a temperature of 0 K, all atoms or molecules inside a body are in rest ? all motion in the body is frozen. Free describes this state because the absolute zero point. The Celsius temperature scale that is more common inside our latitudes defines the zero point because the freezing point of water, since this condition could possibly be reproduced without great technical effort in past times.
Temperature measurement
Different physical properties are directly dependent on the temperature and therefore are used for temperature measurement, such as, for example:
the dependence of expansion on temperature
the change in electrical resistance with temperature
voltage generation depending on the temperature
temperature-dependent frequency fluctuations
changes in the wavelength of rays of a body, depending on temperature
Note
Home elevators our temperature measuring instruments are available on the WIKA Website.