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It may be fitted to ROVs to provide actual through the water speeds, or fitted to Tether Management Systems to give the measurement of local flow conditions. Measurements are updated every second and the ROVLog™ software provides a graphic and data display and enables data to be logged to disk.
A Model 803 is the result of combining Valeport's proven current sensing
technology with the knowledge and experience of some of the UK's leading
ROV manufacturers and operators. The concept is simple - the Model 803
consists of a Valeport 2 axis electromagnetic flow sensor, with processing
electronics capable of giving a variety of output formats for easy interface to
almost any system.
The sensor should be mounted in clear flow on the ROV or TMS.
When power is applied to the sensor, it measures the water velocity in 2 axes
across the sensor surface. This data is updated at 1 second intervals, to
provide X and Y axis flow information: the X axis is flow across the vehicle,
and the Y axis is flow into the vehicle. This data can either be taken into a
separate logging package, or displayed and logged to PC using the ROVLog
PC software provided.
As standard the Model 803 is supplied as a complete self-contained
instrument, but can optionally be configured with separate sensor and
electronics packages, or even as an OEM system. The Model 803 will appeal
both to operators who wish to improve their existing vehicles, and to
manufacturers who want to offer it as an additional parameter in the sensor
package.
7 – 29V DC, 2W nominal.
Default settings are applied for update rate and output format as standard.
Changes can be made to these settings via a Terminal program
System supplied with ROVLog PC software, for display of data from the
instrument. ROVLog is license free.
The MIDAS ECM is one of only a few multiparameter current meters that allow real-time operations over several thousand metres of cable, as well as autonomous deployment.
The Model 106 is the ideal instrument for coastal and estuarine applications and other light-duty survey work.
The Model 801 Electromagnetic Flow Meters measure the speed of water in Open Channel environments with exceptional accuracy.