发明名称 |
Wireless food temperature-sensing assembly |
摘要 |
The present invention is directed to a cooking utensil such as a microwave oven wherein a food temperature-sensing probe is inserted into a foodstuff for detecting the internal temperature of the food. The food temperature-sensing probe includes a resonance circuit the resonance frequency of which varies depending on the internal temperature. A first signal generator is provided for delivering a series of signals which contain a variety of frequencies inclusive of the signals of the resonance frequency. A second signal generator is employed to provide sweeping signals for the series of signals developed from the first signal generator. A selecting circuit is connected to the second signal generator for selecting a particular value in the sweeping signals relevant to the desired temperature of the foodstuff. A wireless controlled circuit is provided which determines the occurance of the dip phenomena in a relationship with the particular value in the sweeping signals under the radiation of the series of signals generated from the first signal generator.
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申请公布号 |
US4475024(A) |
申请公布日期 |
1984.10.02 |
申请号 |
US19830456669 |
申请日期 |
1983.01.10 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
TATEDA, KOICHI |
分类号 |
G01K7/00;G01K1/02;G01K5/72;H05B6/68;H05B6/80;(IPC1-7):H05B6/68 |
主分类号 |
G01K7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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