Tank leakage detector
SDT 170 MTT
SDT International
Sound is generally produced by a vibrating body. The surrounding air participates in this movement, creating waves around it which transmit the sound energy. Ultrasound is a vibration of the same nature as sound but at a frequency above 20 kHz and inaudible to the human ear. It is produced naturally by friction, including turbulence in fluids caused by pneumatic or hydraulic problems such as leaks.
Checking tightness using ultrasound involves collecting and amplifying the ultrasound vibrations generated by the passage of water, air or matter through a hole in the wall of the tank. This is after the tank has been set under negative pressure and using two sensitive sensors, one in the liquid and the other above the level of the liquid.
