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    • 3. 发明专利
    • Ion detection device
    • 离子检测装置
    • JP2007127126A
    • 2007-05-24
    • JP2006297921
    • 2006-11-01
    • Phelon Euro Abフェロン ユーロ アクチボラゲット
    • BENGTSSON JOERGEN
    • F02P17/12F02D45/00
    • F02P17/12F02D35/021F02D2400/06F02P1/086F02P2017/123F02P2017/125F02P2017/128G01M15/104
    • PROBLEM TO BE SOLVED: To provide an ion detection device of burnt air-fuel mixture of an engine, since combustion ion detection in a combustion chamber is effective for detection of knocking or misfire, and a reform measure of a signal-to noise ratio with reduced cost is required for a small-sized internal combustion engine.
      SOLUTION: Scaling circuitry 78 such as a variable voltage divider circuit is connected to an output side of an ion detection device to adjust an output signal to be a proper value. In this case, the scaling circuitry has a plurality of resistors and switches, and the switches are selectively opened/closed based on the comparison with a reference value to adjust the output signal to become a value suitable for the use of measurement.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了提供发动机的燃烧空气 - 燃料混合物的离子检测装置,因为在燃烧室中的燃烧离子检测对于检测爆震或失火是有效的,并且对于信号到 小型内燃机需要降低成本的噪声比。 解决方案:诸如可变分压器电路的缩放电路78连接到离子检测装置的输出侧,以将输出信号调整为适当的值。 在这种情况下,缩放电路具有多个电阻器和开关,并且基于与参考值的比较来选择性地打开/关闭开关,以将输出信号调整为适合于使用测量值。 版权所有(C)2007,JPO&INPIT