发明名称 |
A DETECTOR FOR DETECTING A BURIED CURRENT CARRYING CONDUCTOR |
摘要 |
A detector for detecting a buried current carrying conductor includes a digital signal processor, magnetic sensors, and a power supply unit. The power supply unit is a switched mode power supply which incorporates a proportional integral differential controller feedback algorithm and which is managed by the digital signal processor. The load and source voltage are monitored by the digital signal processor and a look-up table is used to control a pulse width modulator, which drives a single ended primary induction controller. The digital signal processor processes and compares signals received from the sensors to calculate a depth of a buried conductor. The self-generated noise of the power supply unit does not interfere with the frequency bands of detection of the detector. |
申请公布号 |
EP1907888(B1) |
申请公布日期 |
2014.01.08 |
申请号 |
EP20060744119 |
申请日期 |
2006.06.06 |
申请人 |
RADIODETECTION LIMITED |
发明人 |
ROYLE, JOHN MARK;THOMPSON, JEFF;PEARSON, RICHARD;WORSLEY, ROBERT ASHWORTH |
分类号 |
G01V3/08 |
主分类号 |
G01V3/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|