发明授权
US07397353B2 Wireless tire pressure and/or wheel speed sensing system for aircraft
有权
用于飞机的无线轮胎压力和/或轮速感测系统
- 专利标题: Wireless tire pressure and/or wheel speed sensing system for aircraft
- 专利标题(中): 用于飞机的无线轮胎压力和/或轮速感测系统
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申请号: US11190404申请日: 2005-07-27
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公开(公告)号: US07397353B2公开(公告)日: 2008-07-08
- 发明人: Douglas C. Myhre , Mark J. Buenz , John A. Norlien , William G. Kunik , Wade W. Williams
- 申请人: Douglas C. Myhre , Mark J. Buenz , John A. Norlien , William G. Kunik , Wade W. Williams
- 申请人地址: US MN Burnsville
- 专利权人: Rosemount Aerospace Inc.
- 当前专利权人: Rosemount Aerospace Inc.
- 当前专利权人地址: US MN Burnsville
- 代理机构: Calfee, Halter & Griswold LLP
- 代理商 Kevin O'Brien
- 主分类号: B60C23/00
- IPC分类号: B60C23/00
摘要:
A wireless tire pressure sensing system for an aircraft comprises: dual resonant circuits mounted to a wheel of the aircraft, each resonant circuit comprising: a variable capacitance sensor and a wire loop of a predetermined inductance coupled thereto, one capacitance sensor for monitoring the pressure of a tire mounted to the wheel, and the other capacitance sensor operative as a reference to the one capacitance sensor; an interrogating circuit magnetically coupleable to the dual resonant circuits and operative to induce magnetically a variable frequency current in the dual resonant circuits, the one resonant circuit responding to the induced current with an E-field signal at a first resonant frequency commensurate with the capacitance of the one sensor, and the other resonant circuit responding to the induced current with an E-field signal at a second resonant frequency commensurate with the capacitance of the other sensor; a receiving circuit E-field coupleable to the dual resonant circuits and operative to receive the E-field signals at the first and second resonant frequencies and to generate first and second signals representative thereof, and a processing circuit coupled to the receiving circuit for processing the first and second signals to generate a compensated pressure reading of the tire. The pressure sensing system may be modified to provide and/or include wheel speed sensing.
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