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    • 8. 发明授权
    • Fiber-optic cylinder pressure sensor
    • 光纤汽缸压力传感器
    • US06301957B1
    • 2001-10-16
    • US09210755
    • 1998-12-15
    • Tatsunori SakaguchiShizuhisa WatanabeHisao SonobeMasahiro Komachiya
    • Tatsunori SakaguchiShizuhisa WatanabeHisao SonobeMasahiro Komachiya
    • G01M1500
    • G01M15/042G01L1/242G01L23/16
    • An on-vehicle fiber-optic cylinder pressure sensor capable of detecting the pressure within a combustion chamber with precision has an optical fiber capable of converting a change in the pressure within a combustion chamber received on its outer surface on an engine gasket into a change in the light quantity passing therethrough. A light emitting device for emitting the passed-through light; a photosenses or senses the passed-through light of which the light quantity has been changed. A converter converts the light quantity of the passed-through light into an electric signal. A reference pressure setting apparatus sets a reference electric signal. A signal processor includes an apparatus for watching a corresponding reference electric signal to the reference electric signal included in the detected electric signal.
    • 能够精确地检测燃烧室内的压力的车载光纤汽缸压力传感器具有能够将发动机衬垫的外表面上容纳的燃烧室内的压力变化转换为变化的光纤 光量通过其中。 一种用于发射穿透光的发光装置; 照亮或感测光量已经改变的通过光。 A转换器将通过光的光量转换成电信号。 基准压力设定装置设定基准电信号。 信号处理器包括用于观察与检测到的电信号中包括的参考电信号相对应的参考电信号的装置。