The device uses a sensor. The sensor is capacitive or inductive and the vibrations of the pan vary its capacitance or inductance. The cooking ware (KG) has base upper-side temperature (T1). Typical water temperature (T2) is about 90 deg. C. Conducting tracks which can be used as sensors can be applied beneath or between the glass ceramic cooking points. The base of the pan forms one electrode and the other electrode is formed by at least one conducting track.
