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2. 发明授权

US4803444A Proximity switch 失效
标题翻译：接近开关
公开(公告)号：US4803444A
公开(公告)日：1989-02-07
申请号：US127403
申请日：1987-12-02
申请人： Fumito Takahashi
发明人： Fumito Takahashi
IPC分类号： H03K17/95 , H03B5/12
CPC分类号： H03K17/9547
摘要： A proximity switch including a high-frequency oscillation device, including a detection coil, for generating an output signal which represents the detection of the approach of an object. A rectification device is included for rectifying and smoothing the output signal from the high-frequency oscillation device to generate an output signal. A feedback device feeds back the output signal from the rectification device to the high-frequency oscillation device. An output device generates a signal when the quantity of the feedback by the feedback device has exceeded a predetermined value. The signal generated by the output device representing the approach of the object.
摘要翻译：一种接近开关，包括包括检测线圈的高频振荡装置，用于产生表示物体接近检测的输出信号。包括整流装置，用于整流和平滑来自高频振荡装置的输出信号以产生输出信号。反馈装置将来自整流装置的输出信号反馈到高频振荡装置。当反馈装置的反馈量超过预定值时，输出装置产生信号。由输出设备生成的表示物体接近的信号。

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