“When an ultrasound wave hits this panel, it reaches each microphone at a different time,” manufacturer Distran explains. These differences are used by the camera to locate the ultrasound source. The acoustic leak information is instantly superimposed on the image captured by the optical camera and visually displayed on the built-in screen, so that the user can literally see the leaks, even with low volumes and low pressures. Strong winds and heavy rain, however, can affect the measurements.

“This device makes our work highly efficient” Kay von Rauchhaupt highlights. Whether they want to pinpoint the location of a suspected leak or survey plant areas or pipe sections, acting as predictive maintenance: “We quickly obtain accurate results and can store and archive videos and images as well as create inspection reports.” To determine whether leak rates increase or remain constant multiple measurements can be performed. The camera allows operators to perform measurements from a safe distance, an advantage when working around dangerous gases.