发明名称 Method and apparatus for detecting fluid level in a fluid container
摘要 The present invention is a fluid level sensing system for determining fluid levels in a fluid container. The system has a resonant member with an attached magnet. The resonant member is disposed in the fluid container. The system also has a sensing device for sensing motion of the magnet. The movement of the magnet attached to the resonant member is indicative of fluid level in the fluid container.
申请公布号 US6312074(B1) 申请公布日期 2001.11.06
申请号 US19990303248 申请日期 1999.04.30
申请人 HEWLETT-PACKARD COMPANY 发明人 WALKER RAY A.
分类号 B41J2/175;(IPC1-7):B41J2/195 主分类号 B41J2/175
代理机构 代理人
主权项
地址