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    • 78. 发明授权
    • Position sensor with communication hole
    • 带通讯孔的位置传感器
    • US5926085A
    • 1999-07-20
    • US815522
    • 1997-02-27
    • Hideki AbeKunji MuranoYoshio NuiyaYoshifusa KanazawaYasuo Takagi
    • Hideki AbeKunji MuranoYoshio NuiyaYoshifusa KanazawaYasuo Takagi
    • G01B7/30G01B21/22G01D11/30H01C10/30
    • G01D11/26G01D5/24433
    • According to the present invention there is provided a highly reliable position sensor capable of preventing the entry of foreign matters such as water and dust from the exterior into a receptacle chamber formed within a housing. Formed in the housing are a mounting opening to be mounted in a sealed state to a throttle body and a receptacle chamber having an opening. The receptacle chamber and the mounting opening are partitioned from each other by a partition wall. A sensor body is mounted into the receptacle chamber and the opening of the chamber is covered with a cover, then a clearance formed between the opening and the cover is filled and sealed with a thermosetting resin such as an epoxy resin. A communication hole for communication between the receptacle chamber and the mounting opening is formed through an operating shaft which is rotating a sliding-element receiver of the sensor body. While the thermosetting resin is heated, the air expanded in the receptacle chamber is allowed to escape through the communication hole to the exterior. After a throttle position sensor as the position sensor has been attached to the throttle body, the communication hole formed in the operating shaft is shut off from the exterior by the mounting surface for the throttle body.
    • 根据本发明,提供了一种高度可靠的位置传感器,其能够防止诸如水和灰尘的异物从外部进入形成在壳体内的容器室中。 在壳体中形成有以密封状态安装到节气门体的安装开口和具有开口的容器室。 容器室和安装开口通过分隔壁彼此隔开。 将传感器体安装在容纳室中,并且用盖覆盖室的开口,然后用诸如环氧树脂的热固性树脂填充和密封开口和盖之间形成的间隙。 通过使传感器主体的滑动元件接收器旋转的操作轴形成用于容纳室和安装开口之间的连通的连通孔。 当热固性树脂被加热时,容纳室中膨胀的空气被允许通过连通孔逃逸到外部。 在位置传感器已经附接到节气门体之后的节气门位置传感器之后,形成在操作轴中的连通孔通过用于节气门体的安装表面与外部相切。
    • 80. 发明授权
    • Power system stabilizer for generator
    • 发电机动力系统稳定器
    • US5698968A
    • 1997-12-16
    • US559486
    • 1995-11-15
    • Yasuo TakagiYoshitaka SakakiShinichiro TakahashiKozo TakagiYoichi UemuraYasuyuki Miyazaki
    • Yasuo TakagiYoshitaka SakakiShinichiro TakahashiKozo TakagiYoichi UemuraYasuyuki Miyazaki
    • H02P9/10
    • H02P9/105
    • To improve the resistance against external low-frequency disturbance (represented by generator output change), the power system stabilizer for a generator, for inputting a voltage regulating signal (e), as an auxiliary signal, to an automatic voltage regulator to control a generator terminal voltage at a target voltage (V.sub.o), comprises: an angular acceleration observer for calculating an estimated angular acceleration change rate (.DELTA.as) of the generator on the basis of at least one of stabilizing signal change rates (.DELTA.P and/or .DELTA..omega.) of the generator; and a power stabilizer circuit for calculating a corrected voltage regulating signal (e) applied to the automatic voltage regulator on the basis of the estimated angular acceleration change rate value (.DELTA.as) calculated by the angular acceleration observer. Further, it is preferable to provide a plurality of observers and a plurality of power stabilizer circuits, separately for each fluctuation frequency.
    • 为了提高外部低频干扰(由发电机输出变化表示)的电阻,用于将用于输入电压调节信号(e)作为辅助信号的发电机的电力系统稳定器提供给自动电压调节器以控制发电机 目标电压(Vo)的端子电压包括:角加速度观测器,用于基于稳定信号变化率(DELTA P和/或DELTA)中的至少一个来计算发电机的估计角加速度变化率(DELTA as) 欧米茄)发电机; 以及功率稳定器电路,用于基于由角加速度观测器计算的估计角加速度变化率值(DELTA as)来计算施加到自动电压调节器的校正电压调节信号(e)。 此外,优选为每个波动频率分别设置多个观察者和多个功率稳定器电路。