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    • 4. 发明申请
    • CAPACITIVE TEMPERATURE SENSOR COMPRISING TWO CAPACITORS AS A VOLTAGE DIVIDER BRIDGE
    • 包含两个电容器的电容式温度传感器作为电压分路桥
    • US20140321507A1
    • 2014-10-30
    • US14364032
    • 2012-11-19
    • COMMISSARIAT A L'ENERGIE ATOMIQUE AT AUX ENERGIES ALTERNATIVES
    • Abdelkader Aliane
    • G01K7/34
    • G01K7/343G01K7/34
    • A temperature sensor including a capacitive circuit including an input terminal for the application of an input voltage, an output terminal for the reading of an output voltage of the circuit, and a reference potential terminal, a voltage circuit for applying a predetermined voltage to the input terminal of the circuit and a circuit for reading the voltage at the output terminal of the capacitive circuit and converting the read voltage into a temperature measurement. According to the invention, the capacitive circuit includes a fir capacitor, connected between the input and output terminals, and having a capacitance decreasing according to temperature; and a second capacitor, connected between the input terminal and the terminal at the reference potential, and having a capacitance increasing along with temperature.
    • 一种温度传感器,包括: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;电压电路,用于向输入端施加预定电压 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。
    • 10. 发明申请
    • Guided Acoustic Wave Resonant Device and Method for Producing the Device
    • 引导声波谐振器及其制造方法
    • US20100327995A1
    • 2010-12-30
    • US12827875
    • 2010-06-30
    • Alexandre ReinhardtIssiaka Kone
    • Alexandre ReinhardtIssiaka Kone
    • H03H9/64
    • H03H3/04H03H9/02228H03H9/589
    • A guided acoustic wave resonant device is provided. The device comprises at least two filters (F1, . . . , Fi, . . . , FN), each filter comprising at least two acoustic wave resonators (R11- R12, . . . , Ri1-Ri2, . . . , RN1-RN2), each filter having a useful frequency band (BF1, . . . , BFi, . . . , BFN) centred on a central frequency (f1, . . . , fi, . . . , fN), each resonator comprising at least one suite of inter-digitated upper electrodes exhibiting a periodic structure of period (Λij) and a layer of piezoelectric material, each resonator having a coupling coefficient (k21, k22, . . . , k2n) and a resonant frequency (fr1, . . . , fr2, . . . , fN), wherein at least one of the resonators comprises a differentiation layer (CDfi) making it possible in combination with the period of the inter-digitated electrodes to modify the coupling coefficient of the said resonator, the useful band and the central frequency being determined by the resonant frequencies and the coupling coefficients of the resonators which are adapted so as to have a determined useful bandwidth.
    • 提供了一种引导声波谐振装置。 该装置包括至少两个滤波器(F1,...,Fi,...,FN),每个滤波器包括至少两个声波谐振器(R11-R12,...,Ri1-Ri2,...,RN1 -RN2),每个滤波器具有以中心频率(f1,...,fi,...,fN)为中心的有用频带(BF1,...,BFi,...,BFN),每个谐振器包括 具有周期(Λij)的周期性结构的至少一组数字化的上部电极和压电材料层,每个谐振器具有耦合系数(k21,k22,...,k2n)和谐振频率(fr1, 其中,所述谐振器中的至少一个包括微分层(CDfi),使得可以与所述数字化间电极的周期结合以修改所述谐振器的耦合系数 有用频带和中心频率由谐振频率和谐振器的耦合系数确定,这些谐振频率和谐振器的耦合系数被调整为具有 确定有用的带宽。