ULTRASONIC CROSS-HOLE AUTOMATIC FOUNDATION PILE DETECTOR
Continuous rapid testing of building foundation piles by cross-hole sonic logging. Inspection of concrete defects by ultrasonic method, such as uncompacted, cellular, hole area and so on. Detecting strength of concrete by ultrasonic-rebound combine method. Detecting strength of concrete crevice by ultrasonic-rebound combine method. Detecting defects of one hole by one trigger two receive. Testing mechanical properties of non-metallicmaterial, such as rock, concrete etc.