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    • 6. 发明公开
    • CAPTEUR DE TEMPERATURE CAPACITIF COMPRENANT DEUX CONDENSATEURS EN PONT DIVISEUR DE TENSION
    • KAPAZITIVER TEMPERATURSENSOR MIT ZWEI KONDENSATOREN ALS EINEMSPANNUNGSTEILERBRÜCKE
    • EP2800957A1
    • 2014-11-12
    • EP12795576.3
    • 2012-11-19
    • Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    • ALIANE, Abdelkader
    • G01K7/34
    • G01K7/343G01K7/34
    • A temperature sensor (10) comprises: a capacitive sensor (12) comprising an input terminal (14) for applying an input voltage, an output terminal (18) for reading an output voltage from the circuit, and a reference potential terminal (16, 18); a voltage circuit (26) for applying a pre-determined voltage at the input terminal of the circuit (14); and a circuit (28) for reading the voltage at the output terminal (18) of the capacitive circuit (12) and converting the voltage read into a temperature measurement. According to the invention, the capacitive circuit comprises: a first capacitor (22) connected between the input (14) and output (18) terminals, the capacitance of which decreases as a function of the temperature; and a second capacitor (24) connected between the input terminal (14) and the reference potential terminal (16), the capacitance thereof increasing as a function of the temperature.
    • 一种温度传感器,包括电容电路,该电容电路包括用于施加输入电压的输入端子,用于读取电路的输出电压的输出端子和参考电位端子,用于向输入端施加预定电压的电压电路 端子和用于读取电容电路的输出端子处的电压并将读取的电压转换成温度测量的电路。 根据本发明,电容电路包括连接在输入和输出端之间并具有根据温度降低的电容的冷冻电容器; 以及第二电容器,其连接在参考电位的输入端子和端子之间,并且具有与温度一起增加的电容。