发明授权
US4748408A Method and apparatus for providing direction-indicative output signals
to the integrating amplifier of a device for detecting magnetic
direction
失效
用于向用于检测磁方向的装置的积分放大器提供方向指示输出信号的方法和装置
- 专利标题： Method and apparatus for providing direction-indicative output signals to the integrating amplifier of a device for detecting magnetic direction
- 专利标题（中）： 用于向用于检测磁方向的装置的积分放大器提供方向指示输出信号的方法和装置
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申请号： US782419申请日： 1985-10-01
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公开(公告)号： US4748408A公开(公告)日： 1988-05-31
- 发明人: Toshio Itakura
- 申请人： Toshio Itakura
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi Metals, Ltd.
- 当前专利权人： Hitachi Metals, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX59-205955 19841001
- 主分类号： G01C17/30
- IPC分类号： G01C17/30 ; G01R33/04
摘要：
A magnetic direction detecting apparatus has a magnetic sensor head composed of a magnetic core, an exciting coil wound around the core and a pair of detection coils diametrically wound around the core perpendicularly to each other; an oscillator for supplying a rectangular current wave of a single polarity to the exciting coil; and a switching gate openable synchronously with the rectangular wave for permitting only peaks of the same polarity to pass therethrough. The detection of a magnetic direction by using this apparatus does not suffer from restrictions in switching gate-opening timing.
公开/授权文献
- US5181605A Key cover 公开/授权日：1993-01-26
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