Detector for detecting a buried current carrying conductor...

Details Detector for detecting a buried current carrying conductor... Detector for detecting a buried current carrying conductor...

2008-07-22

2008-07-22

Patidar, Jay M (Department: 2862)

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

For small object detection or location

C324S067000

Reexamination Certificate

active

07403012

ABSTRACT:
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.

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