发明名称 |
OPERATOR SENSING CIRCUIT FOR DISABLING MOTOR OF POWER EQUIPMENT |
摘要 |
An electrical characteristic in an operator-sensing circuit having a microcontroller that commands a charge sensor to send a sensor charge signal to a capacitive sensing element. The charge sensor outputs a corresponding r aw data signal to the microcontroller that in turn sends a signal that disables the motor of a unit power equipment upon the absence of an operator's hand o n a hand-gripping surface of the equipment. Capacitive means for operating within a predetermined charge range that includes preselected values that designate hands-off and hands-on conditions on the hand-gripping surface. Th e capacitor charge range is effective to distinguish between the presence of a n operator's hand and foreign material on the gripping surface for avoiding a false hands-on-signal.
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申请公布号 |
CA2556472(A1) |
申请公布日期 |
2005.08.25 |
申请号 |
CA20052556472 |
申请日期 |
2005.02.17 |
申请人 |
GUSTAV MAGENWIRTH GMBH & CO. KG |
发明人 |
SAUTER, RALPH;NEIDERT, MARKUS;MITTMANN, BERNHARD;KIRCHNER, MARKUS |
分类号 |
F16P3/00;F16P3/12;F16P3/18;H03K17/96 |
主分类号 |
F16P3/00 |
代理机构 |
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地址 |
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