| 摘要 |
A fryer (100) measures cooking medium quality, and includes a cooking vessel (110) configured to store a cooking medium (115), an electrode plate (210) completely immersed in the cooking medium, an insulator (220) comprising a first side and a second side, wherein the first side of the insulator is fixed to the electrode plate, and a second side of the insulator is attached to a wall (125) of the cooking vessel, a guard ring (230) fixed to the cooking vessel and surrounding the electrode plate and insulator. The guard ring extends further away from the wall of the cooking vessel than the electrode plate. A size (A) of a gap between the guard ring and the electrode plate is based on a height (E), a width (D), and a thickness (F) of the electrode plate and substantially defines a gain of the electrode. A signal conditioning circuit (600) measures the conductivity of the cooking medium applied to the electrode. |
