Apparatus and method for determining a dielectric function in an object and apparatus for determining the spatial distribution of temperature in a alimentu00eccio product and apparatus for determining a characteristically an object

摘要

Apparatus and method for determining a dielectric function in an object and apparatus for determining the spatial distribution of temperature in a alimentu00eccio product and apparatus for determining a characteristically on an object. The present invention relates to a device for determining a dielectric function in an object.The apparatus comprises a transmitter antenna (42) for transmitting microwave radiation through said object, and a receiving antenna (43) to receive the microwave radiation transmitted, a transmitter of ultrasound to emit ultrasonic radiation through said object to generate a Ma variation of density in the object.Methods to analyse the microwave radiation transmitted through the variation of density to determine the interaction acoustic electric sym in the object, and means for calculating the dielectric function in the object, from the acoustic electric interaction. The invention also relates to a method for determining the dielectric function in an object.