NON-INVASIVE DEVICE FOR DETERMINING THE TEMPERATURE AND ICE CONTENT OF FROZEN FOODS

摘要

The invention relates to a non-invasive device for determining the temperature and ice content of frozen foods using ultrasound, comprising a 1-10 MHz frequency receiver/reflector and transmitter. The method uses a program to perform calculations as a function of the thickness of the sample and the flight time of the wave which is determined using conventional methods, with the type of material (fruit - vegetable or meat - fish) and the initial freezing point thereof being known. The more specific the aforementioned parameters, the more precise the final measurement.