Device for detecting a cooking vessel positioned in a heating zone of a
cooker or heater
    1.
    发明授权
    Device for detecting a cooking vessel positioned in a heating zone of a cooker or heater 失效
    用于检测位于炊具或加热器的加热区域中的烹饪容器的装置

    公开(公告)号:US5296684A

    公开(公告)日:1994-03-22

    申请号:US650489

    申请日:1991-02-05

    申请人: Willi Essig Ivo Russ

    发明人: Willi Essig Ivo Russ

    摘要: The device comprises a sensor supplying a sensor signal which varies as a result of the placement of a cooking vessel in a heating zone of a heating appliance. The device includes evaluating circuit which, as a function of the sensor signal, supplies an output signal. The evaluating circuit produces the output signal as a function of the rate of change of the sensor signal to indicate the presence or absence of cookware in the heating zone of the heating appliance.

    摘要翻译: 该装置包括提供传感器信号的传感器,该传感器信号由于将烹饪容器放置在加热器具的加热区域而变化。 该装置包括评估电路,其作为传感器信号的函数提供输出信号。 评估电路根据传感器信号的变化率产生输出信号,以指示在加热设备的加热区域中存在或不存在炊具。

    Circuit arrangement for a sensor element
    2.
    发明授权
    Circuit arrangement for a sensor element 失效
    传感器元件的电路布置

    公开(公告)号:US5973417A

    公开(公告)日:1999-10-26

    申请号:US24574

    申请日:1998-02-17

    摘要: A circuit arrangement (11) has an activating circuit (13) for a sensor element (12) of a touch contact switch, which in one embodiment of the invention contains a frequency generator (16). The frequency generator (16) generates a frequency-modulated activating signal (17), which is applied to the sensor element (12). In another embodiment the forming of the activating signal (17) takes place in a microcontroller (48), containing eventually the activating part (13) and or the evaluation of the signal. Through passing through a large frequency range for the activating signal (17), the influence of extraneous signals, even when using a lower signal voltage, is minimized.

    摘要翻译: 电路装置(11)具有用于触摸开关的传感器元件(12)的激活电路(13),其在本发明的一个实施例中包含频率发生器(16)。 频率发生器(16)产生施加到传感器元件(12)的调频激活信号(17)。 在另一个实施例中,激活信号(17)的形成发生在最终包含激活部分(13)和/或信号评估的微控制器(48)中。 通过通过激活信号(17)的大频率范围,即使使用较低的信号电压,外部信号的影响也被最小化。