| 摘要 |
<p>PURPOSE:To improve the oscillation efficiency of a magnetron by detecting the temperature of the magnetron anode of the magnetron, controlling an impedance adjusting device by the detected temperature of the magnetron anode, and invariably keeping the temperature of the magnetron anode low. CONSTITUTION:A magnetron 3 generating microwaves heating and cooking an object 2 to be cooked is provided, and a rotary antenna 6 adjusting the load impedance in a cooking chamber 1 is provided. A thermistor 11 detecting the temperature of the magnetron anode 10 of the magnetron 3 is provided, and a controller controlling the rotary antenna 6 via the temperature detected by the thermistor 11 and keeping the temperature of the magnetron anode 10 low is provided.</p> |
