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commonly used and it is relatively accurate especially in complicated pipe network. The
45 degree measurement needs to master the receiver body Angle with the ground. Direct
reading depth method used in complex environments often comes with big deviation. It is
more suitable for long-distance single buried pipeline depth measurement.
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1
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Current Measurement
Compared with the traditional pipeline, this underground pipeline detector can also
measure the current on the target pipeline, which can help operators better identify the
target pipeline. In pipeline intensive areas, the receiver may detect a stronger signal on
the interfering pipeline than on the target pipeline because it is shallower than the target
pipeline. In this case, it is difficult to accurately distinguish the target pipeline from the
interference pipeline if only the signal strength is measured. The current measurement
function can effectively distinguish between the target pipeline and the non-target pipeline.
The pipeline with the largest current measurement data (rather than the strongest signal)
is the one to which the transmitter signal is applied (see Figure f). Measuring current can
also provide useful information about tees and elbows. Current measurement of the main
line behind the tee can help determine the main and branch lines (see Figure g) because
the main line draws more current due to the length (see Figure g).
Figure f: Illustration of Current Measurement
Содержание HZ-5000
Страница 1: ...HZ 5000 Underground Cable Detector User Manual Huazheng Electric Manufacturing Baoding Co Ltd...
Страница 35: ...33 Figure a Illustration of Deeper Pipes Figure b Illustration of T Branch Pipe...
Страница 36: ...34 Figure c Illustration of the Pipe that Changes Directions Figure D Illustration of Detection of Pipe Ends...
Страница 37: ...35 Figure e Illustration of Detection under Steel Mesh Net Illustration of Depth Measurement...
