Most often, we find leaks in various structures with the help of thermovisors or smoke generators. However, the use of a thermistor requires a difference in pressure and temperature. Non-tight areas are also detected with pressure difference, using a smoke generator. The situation becomes difficult when we cannot cause a pressure difference, in absence of efficient temperature difference, untightnesses in hard-to-reach places where smoke generator no longer helps.
In such complex cases, an ultrasonic device is used. It helps detect a variety of leaks, even in the absence of temperature differences, no pressure difference, and even in hard to reach places.
Usually we use ultrasound tests for: