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Aqua-Mètre R3000

AQUA-METRE R3000   (ROV operated down to 3000 metres):

The AQUA-METRE R3000, like the R300 version, is a local underwater positioning system based on an acoustical interferometric scheme (mainly known as Ultra Short Base Line or USBL). It is particularly well suited to Metrology Class local 3D locating within the range of up to 150 metres (500 feet) from the reference point (the Base).

The system may be ROV operated and managed from the surface using acoustical networking features. The AQUA-METRE R3000 has been designed for deep offshore metrology (down to 3000 metres), the system is operated through a set of commands (monitor commands and acoustic commands) and may be operated using the AQUA-CAD software from PLSM that allows real time interface to Intellicad range of CAD tools.

The simplest AQUA-METRE system configuration able to measure 3D coordinates underwater is made of at least two main components:

-The measurement Base, which constitutes the local reference Cartesian coordinate system {0,0,0}),

-At least one Pointer which replies to Base interrogations.

Basically, the system is dedicated to 3D measurement of Pointer(s) location in the local coordinate system(s) defined by the Base(s). Each unit also includes an accurate biaxial inclinometer in order to measure Pitch/Roll.

The AQUA-METRE R3000 allows a very flexible system configuration made of several stand alone units (a unit is a Base or a Pointer), all units communicate using acoustic messages, one unit on the ROV allows underwater system management from surface through a serial data-link (RS232 compatible).

This specific unit, that can be any Base or Pointer, is called the Communication Master (CM later in this manual).

AQUA-METRE R3000 Applications:

"spool & jumper"  metrologies using the AQUA-METRE R3000 system.

métrologie de "spool & jumper" lors de l’exploitation pétrolière sur les champs profonds.

Base R3000 and Pointer R3000

ROV mounted R3000 Pointer