Inspections in turbid water with underwater drones of quays, dams and locks. We do this with the help of SONARS.

Diving inspections in turbid water with underwater drones of quays, dams and locks. We do this with the help of SONARS.

To get a good picture of the situation below the waterline, we use imaging sonars mounted on our underwater drone.

How does an 'imaging sonar' work? Sonar works with sound waves instead of light waves. Light waves have very high frequencies and therefore cannot penetrate very far in water. It is not for nothing that it is dark under water. These sound waves are 2,000 times longer than visible light, so they penetrate farther than light waves in cloudy water. The sonar projects a beam of sound waves onto the object and converts the reflection of the sound into digital video images. You can now see underwater.

As mentioned, our underwater drone uses sonar. With controlled, fluid control of the underwater drone and the increased range of sound waves that are converted into images, you get a sharp picture of what is happening underwater. A video made by a diver is in many cases more difficult to interpret. The murky water and the jerky movements of the diver make it difficult to orientate and interpret the images. See the video for an example of the two images side by side.

In addition, using an underwater drone is safer because no people are needed in the water. Our underwater drone also does not cause any inconvenience to shipping. Due to the size of the underwater drone, the drone can reach places that a diver cannot reach. This shows locations that might otherwise not be inspected.

Sample video

Scheur in beton