Condition monitoring with non-destructive testing (NDT)
We use non-destructive testing to analyse the condition of objects, structures, and systems during operation. Gain insight into where to extend component lifetimes or repair components to avoid accidents.
We offer NDT inspection for all types of objects, structures, tanks, pipes and systems, whether onshore or offshore. This gives you critical insight into factors like corrosion, wear and tear, and other damage incurred during operation. You can then use this insight to optimise your maintenance operations.
Supporting safety, operations, and finances with NDT
As a system owner, you are responsible for the continuous monitoring and optimisation of your system.
This is true in multiple dimensions:
Staying aware of your system's status is essential to ensure that it is safe for operators and other employees to work on or with the system. You must also ensure that the system complies with applicable regulatory requirements, and that the compliance is documentable to the authorities.
Operation includes a variety of parameters. Above all else, this means minimising downtime and ensuring that the system runs as efficiently and smoothly as possible. If the system functions sub-optimally, the result may be additional cleaning expenses, emission taxes, and so on.
Naturally, finances and optimum operation go hand in hand. An optimised system is subject to less wear, extending its lifetime. Continuously repairing and replacing individual system components as needed is also important to extend the lifetime of the system as a whole.
Specially tailored inspection and consultancy for valuable insights
There are multiple factors that influence wear, corrosion, and similar processes, including materials, the environment, loads, construction, and so on. This also means that determining the state of an object, structure, or system in operation can be much more complex than simply inspecting it immediately after manufacture.
Consequently, we often use a combination of inspection methods in NDT tailored to the specific task at hand. These may include manual, automated, and advanced methods, including drone technology and rope access.
A versatile partner in condition monitoring
We have inspectors located in Denmark and around the world. Our regional offices enable us to rapidly respond in the event of a breakdown, accident, or other incident. This also means that our customers enjoy the convenience of having local contacts familiar with their particular facilities.
We work onshore and offshore, providing NDT inspection services to businesses in all industries; for example, food and pharmaceutical manufacturing, heavy industry, and energy - including CHP plants and wind power.
We work closely with in-house experts specialising in materials, fault mechanics, welding, and surface characteristics. That way, you can rest assured that we will always be able to find a solution to any problem that might occur.
NDT encompasses various non-destructive testing methods
NDT stands for non-destructive testing. We use all recognised NDT methods, including manual, automated, and advanced methods. Our comprehensive library of testing equipment enables us to use such non-destructive testing methods as
- visual inspection
- X-ray inspection
- ultrasonic testing
- vortex inspection
- penetrant inspection
- magnet inspection
- phased array
- digital radiography
- ToFD (Time of Flight Diffraction)
- 3D MFL (Magnetic Flux Leakage).
NDT is commonly used to inspect metals, concrete, polymers, and composites in industries ranging from energy generation, infrastructure, and transportation to pharmaceutical and food manufacturing.
NDT methods - what are the most common NDT methods?
Ultrasonic testing (UT)
Ultrasonic testing is one of the most widely used non-destructive testing (NDT) methods. When ultrasound is sent through an object, the inspector assesses the reflections that come back and can deduce from this whether there are defects in the object.
Ultrasound testing can be performed both manually and automated, and is often used to:
- check cracks
- detect casting and rolling defects
- measure material thickness
- detect corrosion or erosion.
Eddy Current Testing (ET)
Eddy Current testing is an electromagnetic test method that can be used on all electrically conductive materials. It can also be used on painted and coated surfaces, as well as under water.
Eddy current testing is mainly used to:
- check welds
- find cracks
- measure material thickness
- measure corrosion thickness
- measure the thickness of the coating or coating
- detect heat-affected zones.
Penetrant Testing (PT)
Penetrant testing is used to find surface defects in fx machined, cast or welded items. When the item is cleaned, the NDT inspector applies the penetrant liquid, and fluorescent color indicates whether the item has surface defects such as:
Magnetic Particle Testing (MT)
Magnetic particle testing is used on ferromagnetic objects such as iron, nickel, ferritic steel and cobalt. Metal powder is applied to an item, and when the item is magnetized, the metal powder will collect where there is a flaw in the item.
Examples of errors include:
- welding defects
- binding defects
Visual Testing (VT)
Visual inspection is most often the first form of NDT to be performed. The method is widely used in the maintenance of machines and production facilities.
The inspector looks for visible faults such as:
- insufficient cleaning
- signs of wear, cracks and breaks
- erosion and deformation.
Radiographic testing (RT)
Radiographic testing is also called X-ray testing and is often used to examine internal defects in welds or in cast items.
The method can also be used to locate:
- surface defects
Rope Access – Industrial climbing
Rope access is used in situations where it is difficult to inspect the item or construction either due to height or in hard-to-reach spaces. There are both time and financial advantages because it is not necessary to use scaffolding and cranes.