We utiize NO-DIG technology, which was developed based on NTT's R & D results, to continue to take part in improving social infrastructure efficiency, as well as to contributing to global environmental protection.
Due to the stress corrosion cracking, there is a risk that the underground rebar of the concrete pole (CP) can break and destroy the CP. This device, using the ultrasonic measurement principle, can check the concrete craking within the CP itself (the underground/ back of the above-ground part that have the poster preventing plate)
■Can detect the underground cracked section without digging the ground
■Can detect the above-ground part without having to remove the poster prevention plate, etc
■The measurement result is accumulated, put into the database to check the deterioration progress
■The cracks can be jugdged numberically, preventing the cracks detection leakage
The transmitting and receving transducer is placed in the above-ground part. The transmitting transducer will send the untrasonic wave towards the underground area. Once the wave meet the cracks, it will return to the above-ground part and is received by the receiving transducer as the reflected wave. The devive, upon analyzing the intensity and the transmitting time will check if there is cracks or not and if yes, where it locates. For those with poster preventing plate, the transducers will be placed below and above the plate.
| Components | Pulse generator, labtop, the transducers, telephone pole mounting jig |
|---|---|
| Power | The main body of the laptop: AC100V |
| Accessories | Chain band, band display, protection cap, instruction manual |
| Size (weight) | Body trunk case (9Kg), jig trunk case (11Kg) |
NTT West - Chugoku
NTT rental Engineering Co., Ltd.
