Abstract
The main features of acoustical thermography are considered. A method is proposed for solving the direct problem of acoustical thermography in the one-dimensional case. It gives the potential for theoretical calculations of the acoustobrightness temperature T a on an object's surface from the distribution of the thermodynamic temperature and the absorption coefficients within the surface. The main formula of acoustothermography is verified for a heated layer and also for an experiment with the same layer, with an acoustic mirror placed behind the layer, for various objects. The value of T a is found experimentally to be well described by the proposed equation. The temperature deep within the palm of a hand, when immersed in water, is measured by means of acoustothermography as a function of water temperature.
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