A method and apparatus are described for determining the doneness of food during a cooking process. Ultrasonic signal are passed through the food during cooking. The change in transmission characteristics of the ultrasonic signal during the cooking process is measured to determine the point at which...http://www.google.fr/patents/US7191698?utm_source=gb-gplus-shareBrevet US7191698 - System and technique for ultrasonic determination of degree of cooking
System and technique for ultrasonic determination of degree of cooking
