发明授权
US07304480B1 Radio mode selectivity block for a detector for detecting a buried current carrying conductor
有权
用于检测埋地载流导体的检测器的无线电模式选择性块
- 专利标题： Radio mode selectivity block for a detector for detecting a buried current carrying conductor
- 专利标题（中）： 用于检测埋地载流导体的检测器的无线电模式选择性块
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申请号： US11455788申请日： 2006-06-20
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公开(公告)号： US07304480B1公开(公告)日： 2007-12-04
- 发明人: Richard Pearson
- 申请人： Richard Pearson
- 申请人地址： GB Bristol
- 专利权人： Radiodetection Limited
- 当前专利权人： Radiodetection Limited
- 当前专利权人地址： GB Bristol
- 代理机构： Baker & Hostetler LLP
- 优先权： GB0512567.9 20050620
- 主分类号： G01V3/08
- IPC分类号： G01V3/08 ; H03B21/02
摘要：
A radio mode selectivity block 41 for a detector 1 for detecting a buried current carrying conductor comprises a plurality of beat frequency oscillators 53 to center the bandwidth of detection of the detector 1 on target very low frequency (VLF) frequency bands. The frequencies of the beat frequency oscillators are chosen to fall within the VLF frequency bands used in a number of countries, so that the detector 1 can be used in radio mode in these countries without the need for local configuration.