World’s first ultrasonic camera

So far, acoustic cameras were mostly used to improve the audible properties of objects (such as cars). However, acoustic emissions were already used in the industry to diagnose failures such as partial discharges or gas leaks. Therefore, we decided to design a camera that would be sensitive to these high pitch sounds. In 2013, we got the world’s first ultrasound images using a three-dimensional acoustic imaging algorithm. Ultrasounds visualized were generated by the blades of an electric razor. It was also possible to precisely locate the friction points of the blades, as well as the noise created by the gearboxes.