Purpose
Testing building foundation piles by crosshole ultrasonic wave method .
Inspecting concrete defects by ultrasonic method, such as uncompacted place, cellular hole area
Detecting concrete strength by ultrasonic-rebound combined method
Detecting concrete crack depth by ultrasonic method
Detecting the wall defects of the hole by one transmitter and two receivers
Detecting the strength performance of geotechnical investigation, rock, concrete, etc