Cable location system for use with ROVs
A
Tinsley product story
Edited by the Engineeringtalk editorial team
Feb 24, 2003
The 5930R is a survey system for subsea cable location, tracking and burial depth measurement when using the smaller survey class remotely operated vehicles.
Precision instrument specialist H Tinsley has introduced the 5930R survey system for subsea cable location, tracking and burial depth measurement when using the smaller survey class remotely operated vehicles (ROVs).
As many cable faults occur in shallow water it is essential to be able to survey these quickly and accurately.
The Tinsley 5930R can be used in conjunction with a small survey class ROV that can be quickly deployed.
Signals from a toned cable are detected by a compact sensor array attached to the front of the ROV and this data is transmitted to the surface through an umbilical where it is processed and displayed in both graphic and numeric form.
The display is portable and conveniently can be installed next to the ROV control module.
The 5930R has a diagnostic function that uses both oscilloscope and spectrum analyser, enabling the operator to be fully aware of the quality of the signal being received and the presence of any other electromagnetic fields or interference that may be within the frequency range of the instrument.
The true frequency of the tone being received is monitored and can be displayed at any time, eliminating the problems associated with the frequency of the applied tone drifting with time.
The unit can be used with any tone generator designed for electroding of cables and, if required, the company can supply its 5915 electroding generator for this purpose.
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