| 摘要 |
PROBLEM TO BE SOLVED: To accurately measure reflectivity of a pan for precisely measuring a temperature of the pan mounted on a top plate. SOLUTION: A light receiving output of an infra-red ray sensor 5 disposed at a lower face of a top plate 1 is compared with a prescribed value, a light emitting means projects an infra-red ray from a light emitting means when the receiving output is smaller than the prescribed value in a state of mounting a pan 2, and the sensor 5 measures the reflecting light and calculates the reflectivity.By the above, the cooker capable of measuring the reflectivity and a radiation light by one sensor, having a temperature detecting system not influenced by emissivity, is provided. COPYRIGHT: (C)2005,JPO&NCIPI |
