Sensors

Non-Destructive Testing (NDT) Sensors

Cygnus Ultrasonic Thickness (UT) Gauge

The ultrasonic thickness gage is a sensor designed to measure the thickness of ship hulls using acoustic signals. This allows surveys to be done without having to take core samples or cutting into material.

Use the link below to Download the user manuals

Oceantools DigiCP Probe

The CP probe is a center designed to measure the cathodic potential of a structure or vessel. 

Use the link below to Download the user manuals

Water Quality Sensors

In-Situ Aqua Troll 500

This Multi-parameter sonde Allows users to choose a combination of different sensors for taking water quality measurements. If installed on your vehicle, read the user manual thoroughly as there are maintenance procedures, expiry dates, and calibration steps for your sensors.

Use the link below to Download the user manuals

Dissolved O2 Sensor

The Dissolved Oxygen Sensor Kit is another environmental sensor that is integrated directly into the controller GUI. This device is very sensitive, and it is this sensitivity that gives it the accuracy needed to be a reliable sensor. The readings from this sensor are displayed directly on the controller which makes this sensor very convenient.

The sensor is very small and because of its size, is often secured via a cable tied to the ROV. Before deploying the ROV to use the sensor, ensure that the harness from the sensor is connected in the AUX port of the vehicle.

To edit the calibration and salinity sensitivity for the sensor, navigate to the calibrations menu:

SALINITY         salinity sensitivity (0 = freshwater, 50 = extreme saltwater)

CALIBRATION calibration protocol for the sensor (follow manufacturer’s recommendations)

To view maintenance details as well as further information for this sensor, please view the manufacturer’s ‘Dissolved Oxygen Probe Datasheet’ using the link below

Hydrophone

Ocean sonics RB9

The Ocean Sonics RB9 Hydrophone is another environmental sensor that is mounted directly on the top or bottom of the ROV. This device allows you to listen and record audio underwater. The hydrophone has a wide range of frequencies, with the ability to hear something as low as Earth’s tectonic movements up to the sounds of different marine species. By using the Ocean Sonics software to record and view the audio data, you are able to have additional data on top of the visual data that is already available with the DTG3. 

• Confirm that the harness coming from the rear of the Hydrophone is connected to the Aux port on the ROV.

• Connect the RS485 to USB adapter to the “pigtail” cable coming from the tether reel and connect the USB end of the adapter into your laptop.

• Download the software using the  ‘Lucy’ installer provided with your hydrophone.

• Turn on your ROV. 

Follow the ‘Quick Start - Bench Setup’ instructions in the hydrophone user guide which can be accessed using the link below 

Measurement

Echosounder

Vehicles can be fitted with an Echosounder device to measure the distance in front of the ROV. This Ethernet Device will automatically be found in the network table when connected.

This sensor can be used to distance lock the ROV. Distance lock allows the ROV to remain a relative distance from a surface while strafing left or right. 

Distance lock can be activated by programming a button on the controller. 

Once in distance lock, the forward and reverse controls of the ROV will be changed to increase or decrease the distance lock accordingly. 

The effective range of the echosounder distance lock feature is 0.5-10m and a maximum of 45° from the measured surface.

Laser Scaler

Vehicles can be outfitted with a set of 2.5mW lasers integrated within the camera head to provide two fixed reference points which allow the observer to accurately estimate the size and scale of objects within their view. The lasers are calibrated to be a specific distance apart when aimed at objects 1m away from the camera head. The distance is determined by the type of vehicle.

The lasers are positioned relative to the camera to ensure they appear centered on the controller screen. This allows the laser to scale objects in the full field of view of the camera with a tilt range of 260 degrees.  

By default lasers are programmed to program button 1 on the front of the Bridge controller.  They can be programmed to a different programmable button.