The T-Type Acoustic Inspection System measures the volume and topology of sludge sediments in the bottom of liquid storage tanks (e.g. crude oil).
The system includes an ATEX certified tool that is inserted into the tank through a suitable access hole in the roof until fully submerged in the liquid. The end of the tool has an angled phased array that produces acoustic beams to scan a sector of the tank floor and wall.
The PC based data acquisition produces a 3D display of the sediment layer and calculates the volume of sediment using the known geometry of the tank. Sector data from multiple entry points can be combined to give 100% coverage of the tank floor.
On smaller tanks (<40m diameter) the entire tank bottom can be scanned from a single position. But on larger tanks (40m < 120m diameter) the scans from several entries are merged to give a composite image of the distribution and a sludge volume of the entire tank.