发明授权
US07276910B2 Compact self-tuned electrical resonator for buried object locator applications
有权
用于埋藏物体定位器应用的紧凑型自调谐电谐振器
- 专利标题： Compact self-tuned electrical resonator for buried object locator applications
- 专利标题（中）： 用于埋藏物体定位器应用的紧凑型自调谐电谐振器
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申请号： US11184456申请日： 2005-07-19
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公开(公告)号： US07276910B2公开(公告)日： 2007-10-02
- 发明人: Jeffrey A. Prsha , Ray Merewether , Edward Denaci , Christoph H. Maier , Mark S. Olsson
- 申请人： Jeffrey A. Prsha , Ray Merewether , Edward Denaci , Christoph H. Maier , Mark S. Olsson
- 申请人地址： US CA San Diego
- 专利权人： Seektech, Inc.
- 当前专利权人： Seektech, Inc.
- 当前专利权人地址： US CA San Diego
- 代理商 Michael H. Jester
- 主分类号： G01V3/08
- IPC分类号： G01V3/08 ; H01P7/00
摘要：
A self-tuning resonator for use in a transmitter apparatus for inducing alternating currents in a buried conductor. The resonator is dynamically tuned at frequencies below 500 kHz by exploiting the inherent voltage-variability of net capacitance in multilayer ceramic capacitors. The transmitter apparatus provides improved efficiency and induced output power suitable for use in a man-portable locator system, providing a very high magnetic field output from a physically small battery-powered resonator at frequencies under 500 kHz. The resonator exhibits a very low equivalent series resistance (ESR) and is adaptively returned to a predetermined resonant frequency responsive to any changes in resonance arising from phenomena such as component heating, thereby supporting very high tank circuit currents from battery-powered source to produce very high magnetic flux output.