| 摘要 |
PURPOSE:To control temperature accurately regardless of the kinds of pans and the quantity of cooking by detecting the temperature-rise gradient of a material to be cooked and the point of bending where a temperature gradient reaches a predetermined value or lower. CONSTITUTION:The detecting signals of a temperature sensor 6 set up to the bottom of the pan 4 heating a material to be cooked 5 are tramsmitted to a temperature control section 7, and a proportional control valve 2 is controlled. In the temperature control section 7, a temperature change DELTAT at every sampling time DELTAX is measured in a gradient detecting section 8, a point where the temperature change DELTAT reaches a prescribed value P or lower is judged as the point of bending in a bending-point detecting section 9, a temperature where the temperatue of content reaches 100 deg.C at a temperature Td at that time is obtained, and the temperature is outputted to a proportional control section 10. |
