Temperature measuring probe, in particular for a household appliance
AssigneeMiele & Cie. KG
InventorJens Kuhn
Life of this patent
Estimating the term…
Abstract
A temperature measuring probe with a hollow outer shell including an electrically conductive section and an electrically insulating section. A temperature sensor including a resonator is disposed in the electrically conductive section and electrically conductively connected to the electrically conductive section. An antenna including a shortened monopole is disposed in the electrically insulating section. The temperature sensor and the antenna are electrically conductively connected to each other. A respective material and respective dimension of the electrically insulating section and the antenna are matched such that an effective resistance of the antenna is approximately equal to an effective resistance of the temperature sensor in an operating frequency range of the temperature sensor.
Claims20
A temperature measuring probe comprising:
- a hollow outer shell including an electrically conductive section and an electrically insulating section;
- a temperature sensor disposed in the electrically conductive section and electrically conductively connected to the electrically conductive section, the temperature sensor including a resonator;
- and
- an antenna disposed in the electrically insulating section, the antenna including a shortened monopole;
- wherein the temperature sensor and the antenna are electrically conductively connected to each other, a top load capacitance being formed between a tip of the antenna and the electrically conductive section of the outer shell, the tip of the antenna and the electrically conductive section forming electrodes of the top load capacitance and the insulating section forming the dielectric of the top load capacitance, and
- wherein a respective material and respective dimension of the electrically insulating section and the antenna are matched based at least in part on the top load capacitance such that an effective resistance of the antenna is approximately equal to an effective resistance of the temperature sensor in an operating frequency range of the temperature sensor so as to provide impedance matching.
A temperature measuring probe comprising:
- a hollow outer shell including an electrically conductive section and an electrically insulating section;
- a temperature sensor disposed in the electrically conductive section and electrically conductively connected to the electrically conductive section, the temperature sensor including a resonator;
- and
- an antenna disposed in the electrically insulating section, the antenna including a shortened monopole;
- wherein the temperature sensor and the antenna are electrically conductively connected to each other, and wherein a respective material and respective dimension of the electrically insulating section and the antenna are matched such that an effective resistance of the antenna is approximately equal to an effective resistance of the temperature sensor in an operating frequency range of the temperature sensor,
- wherein an electrical connection between the temperature sensor and the antenna and the electrically conductive section of the outer shell includes a coaxial line, an inner conductor of the coaxial line connecting the temperature sensor to the antenna, and an outer conductor of the coaxial line connecting the temperature sensor to the electrically conductive section of the outer shell.
A household appliance including a temperature measuring probe comprising:
- a hollow outer shell including an electrically conductive section and an electrically insulating section;
- a temperature sensor disposed in the electrically conductive section and electrically conductively connected to the electrically conductive section, the temperature sensor including a resonator;
- and
- an antenna disposed in the electrically insulating section, the antenna including a shortened monopole;
- wherein the temperature sensor and the antenna are electrically conductively connected to each other, a top load capacitance being formed between a tip of the antenna and the electrically conductive section of the outer shell, the tip of the antenna and the electrically conductive section forming electrodes of the top load capacitance and the insulating section forming the dielectric of the top load capacitance, and
- wherein a respective material and respective dimension of the electrically insulating section and the antenna are matched based at least in part on the top load capacitance such that an effective resistance of the antenna is approximately equal to an effective resistance of the temperature sensor in an operating frequency range of the temperature sensor so as to provide impedance matching.
Dependencies are inferred from the claim text.