Question 1

What are advanced NDT solutions?

Accepted Answer

Advanced non-destructive testing solutions use specialized inspection technologies to detect, locate, characterize and size defects without damaging the inspected asset. Octobotics provides advanced NDT capabilities using UT, PAUT and TOFD, supported by robotic and remote-access platforms where appropriate.

Question 2

What is the difference between UT, PAUT and TOFD?

Accepted Answer

UT uses ultrasonic waves to measure material thickness and identify internal discontinuities. PAUT uses multiple electronically controlled ultrasonic elements to scan welds or surfaces from different angles. TOFD uses diffracted ultrasonic signals to accurately determine the position and depth of weld indications. Octobotics selects the most suitable technique based on the material, weld configuration, thickness, defect mechanism and reporting requirements.

Question 3

When should PAUT and TOFD be used together?

Accepted Answer

PAUT and TOFD can be used together when an inspection requires detailed weld coverage, strong detection capability and accurate defect sizing. PAUT provides multi-angle imaging and characterization, while TOFD is particularly useful for sizing the height and depth of crack-like indications. The combined approach is commonly used for critical weld inspection and engineering assessment.

Question 4

Can advanced NDT detect corrosion and weld defects?

Accepted Answer

Yes. Advanced NDT can support the detection and evaluation of corrosion, wall thinning, lack of fusion, cracks, slag-related indications and other discontinuities, depending on the technology and application. Octobotics configures the inspection method and sensor payload according to the asset, material, surface and expected damage mechanism.

Question 5

What are the benefits of advanced NDT compared with conventional inspection?

Accepted Answer

Advanced NDT can provide greater inspection coverage, improved data traceability, better defect characterization and more accurate sizing than basic spot-check methods in suitable applications. It can also reduce inspection time and support remote or automated data collection, particularly when combined with robotic platforms.

Advanced NDT Solutions - UT, PAUT, TOFD & Corrosion Assessment

The problem we solve

Risks of the traditional approach

How we deliver it

Ultrasonic Testing (UT)

Phased Array Ultrasonic Testing (PAUT)

Time of Flight Diffraction (TOFD)

Thickness Gauging

Surface Preparation & UT

Corrosion Assessment

What changes for your team

Under the hood

Platforms that deliver this solution

WeldSense™

TrackSense™

ReachMaster™

Proof from the field

IOCL Panipat Naphtha Cracker (PRPC)

UPL Chemical Plant Deployment

Frequently Asked Questions

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