Quick Answers for NDT and NDT 3D Inspection

Apr 15, 2022

Non-destructive testing (NDT) has emerged as the dominant technology for industrial testing. It is used to obtain materials’ data without causing damage to them.

As NDT is a hot topic among manufacturers and engineers, this blog provides a basic description of its advantages, commonly used test methods and techniques. We also offer a glimpse into NDT 3D inspection.

The following is a table of contents to help you navigate all the questions most commonly asked for NDT and NDT 3D inspection.

What Is NDT?

NDT is a group of testing and analysis methods that enable technicians to capture data on industrial parts and evaluate them without altering them or permanently destroying their usability. It means the part is serviceable after the inspection completes.

These non-destructive tests are mainly used for in-service products to lower the costs and ensure their integrity and usefulness.

Non-destructive testing for factories

What Are the Common Methods?

The test methods most frequently used in the market are shown below. Namely, they are Magnetic Particle Testing (MT), Liquid Penetrant Testing (PT), Radiographic Testing (RT), Ultrasonic Testing (UT), Electromagnetic Testing (ET), and Visual Testing (VT).

What Is the Difference Between Destructive Testing and NDT?

In contrast to NDT, destructive tests are the methods that deform and destroy materials. These methods evaluate their performances and properties, such as impact resistance, tensile strength, and fatigue strength.

 These methods include macro sectioning, tensile testing, 3 point bend testing. It is usually done on a limited amount of samples instead of in-service components and products.

What Are the Applications of NDT Methods?

NDT services are applied in industries ranging from transportation, manufacturing, and automotive to power generation. It can be undertaken from production to post-production, in-service, and repair.

It is mainly used for industries where precision is critical, and any damage to the part would be costly. These parts include welded parts, casting parts, and pipes for oil & gas.

What Are the Advantages of NDT?

Conserve money

NDT is a test method that allows the materials or products to be inspected without harming their functions and serviceability, therefore conserving the costs of materials.

save time and money for manufacturers

Ensure safety

NDT and NDT techniques are appealing as they are safe for humans. Most of these methods cause no potential harm to technicians.

Enhance efficiency

NDT enables technicians to check products and materials thoroughly and quickly, which is crucial for ensuring the performance of a project.

What is NDT 3D Inspection?

NDT 3D inspection stands for the non-destructive 3D inspection conducted by 3D scanners. 3D scanners project laser beams onto the surface of parts. The device uses angle encoders of the beam projector and the return “time-of-flight” to calculate the location of each point in 3D space.

Once all points are captured and recorded, a dense point cloud is generated. These 3D measurements and inspections are conducted without contacting or altering the objects scanned.

TrackScan 3D scanner

What Does Scantech Offer for NDT 3D Inspection?

With non-destructive lasers to perform the non-contact 3D measurement, Scantech’s composite handheld 3D scanners and automated 3D measurement systems allow users to inspect, resulting in no damage to parts and products.

For instance, the industrial composite 3D scanner KSCAN-Magic innovatively adopts infrared and blue lasers. Thanks to its ultimate scanning area as large as 1440 mm x 860 mm, it can achieve precise and wide-range measurements with ease.

TrackScan-P42 3D system for NDT 3D inspection adopts intelligent optical tracking measurement technology and high-quality optical equipment.

It carries out ultra-high precision dynamic 3D measurements without markers, which can be widely applied to quality control, product development, reverse engineering, etc.

Due to their high adaptability, Scantech’s NDT 3D scanners can cater to the needs of a wide range of industry sectors.

3D Scanner KSCAN-Magic

What Are the Benefits of Scantech’s NDT 3D Inspection?

High Adaptability

Scantech’s 3D scanners can cater to a wide range of parts such as welded parts, automotive stamping parts, casting parts, and more. They can inspect these parts regardless of their structures or surfaces, thanks to their robust algorithm.

Flexible Operation

Scantech’s handheld 3D scanners are lightweight and portable. They can be carried around to 3D scan objects anywhere and anytime without a dedicated lab as it is less affected by environmental conditions.

High Efficiency

The measurement rate of 3D scanners can reach 1 to 2 million measurements per second, which highly accelerates inspection workflows. Therefore, it can effectively reduce the time for detection.

Precise Results

Our NDT 3D inspection solutions provide precise and repeatable results that can be used for inspection and further retrieval.


The above questions are frequently asked for non-destructive testing and NDT 3D inspection. The answers to these questions are intended to shed light on the definition, commonly used methods, and advantages of NDT and NDT 3D inspection.

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