Seismic which generates as impacting with hammer at PC, concrete of phc, steel pile and foundation part receives the reflected signal from defect of inside pile. So we can investigate the shape of section as analyzing these signal and judging the defect and length of pile and combining the reception of impedance which flows into object surface

Specifications

• Overall dimensions : 174×50×210mm

• Unit weight : 1.5kg

• System

- Signal Acquisition : 20kHz, 16bit, pre-trigger, Auto gain

• Power

- 12V built in battery (operation time : 10 hours)

• Sensor

- Hammer : various mass of hammer

- Geophone : High sensitivity vertical sensor (20V/m/s)

- Accelerometer : 1mV/G, 130kHz dynamic frequency

Range of application and use

• Measuring existence and defects of piles

• Estimation of the shape and length of cast-in-situ piles

• Estimation of the concrete strength and thickness

• Testing for piles before structures are finished

• Application to investigating tunnels, thickness of concrete lining and the condition of empty wall

Features

• Testing for the length and defects of piles

• Estimation of contact condition between base plate an pile toe and investigation of damage to piles

• Estimation of contact condition between concrete of tunnel wall and the ground

• Measuring the shape of piles (vertical section of cast-in-situ piles

• Geophone : Measuring impedance reflected on the inspection object

• Measuring the length of PC, PHC and steel piles

• Data storing, transmission and program update using SD card

• Data acquisition, storing and analysis on site

• Light and portable size