发明名称 |
Multi-level liquid level magnetic sensor |
摘要 |
A liquid level sensor employs a set of axially displaced magnetic sensing switches and a magnet on a float that may rise and fall on liquid level to activate and deactivate the switches. The switches and magnet are configured so that movement of the magnetic float activates a new switch before deactivation of an adjacent previously activated switch. An electronic circuit provides a signal based on the uppermost activated switch to provide a signal that is monotonic with liquid level. The design may be readily implemented using reed switches and a resistive ladder.
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申请公布号 |
US8549911(B2) |
申请公布日期 |
2013.10.08 |
申请号 |
US20090994857 |
申请日期 |
2009.05.27 |
申请人 |
RUDD JEFFREY P;PELLEGRINI JAMES M;BONENFANT BRIAN J;ILINOIS TOOL WORKS INC. |
发明人 |
RUDD JEFFREY P;PELLEGRINI JAMES M;BONENFANT BRIAN J |
分类号 |
G01F23/74 |
主分类号 |
G01F23/74 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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