Temperature-sensing probe structure for wireless temperature-sensing system

Cooking control means for monitoring the cooking temperature and controlling the cooked temperature of a foodstuff in a microwave cooking apparatus, comprising;

• microwave source means for providing microwave energy to said apparatus;
• transmitter means for propagating electromagnetic waves within said microwave cooking apparatus over a range of selectively discrete frequencies;
• each one of said discrete frequencies corresponding to a particular cooking temperature value;
• wireless probe means insertable in and responsive to the cooking temperature of a said foodstuff and a particular discrete frequency from said transmitter means for receiving and repropagating an electromagnetc wave of said particular discrete frequency corresponding to said cooking temperature value as a measure of the latter.
• detection means for receiving said repropogated electromagnetic wave of said particular frequency and providing an output signal representative of said cooking temperature valve of said foodstuff;
• said detection means including comparison means containing a reference parameter representative of a desired cooked temperature value of said foodstuff and being responsive to said output signal to compare said cooking temperature value with said desired cooked temperature value to provide a difference signal representative of the difference in said values;
• and
• means responsive to said difference signal for controlling the microwave energy provided by said microwave source means to achieve said desired cooked temperature of said foodstuff.