Discover our Non Destructive Testing (NDT) solutions

Onet Technologies is a major player in non-destructive testing in several industrial sectors(nuclear, petrochemical, oil industry, prefabrication, pipeline, thermal energy, aeronautics, etc.).

We offer non-destructive testing (NDT) solutions that reveal defects with the utmost precision. Find out how our NDT expertise guarantees the safety and reliability of your installations.

A complete NDT offer:

To support our customers throughout the lifecycle of their nuclear and industrial facilities, Onet Technologies teams hold a large number of certifications and qualifications in non-destructive testing (NDT).

Our services :

Conventional NDT services (UT, PT, MT, RT, LT, VTI, ECT...)
Advanced NDT services (PA, TOFD, ECA, PEC, AFM, SLOFEC...)
NDT expertise (UT, TFM, ATFM characterization, etc.)
Drafting of control procedures, validated by a level III COFREND certificate
Design and development of turnkey NDT solutions
Feasibility studies by simulation and/or testing
Production of reference models
Production of qualification files and technical justification files
Design and development of specific mechanical carriers

Our approach to nuclear non-destructive testing

Onet Technologies stands out in the NDT/END field thanks to :

Its Research & Development (R&D) department, staffed by CND/END referents and experts who support the operational teams.
Its Technical Department, made up of over 30 engineers divided between Design Offices and Project Platforms. The engineering skills of this department enable the development of new NDT/END processes.

NDT/CND all techniques

- Penetrant testing
- ACFM
- Magnetoscopy
- Ultrasonic testing, Phased array, TOFD
- Eddy current
- Eddy current
- Chime (under-support corrosion)
- Lyft (Corrosion under insulation)
- Sealing (LT)

NDT expertise

- Search for control solutions
- Development of specific tooling
- Expert reports
- Research & Development END

Customer support

- Preparation for unit shutdowns (various NDT, etc.)

Resources

- COFREND level II
- COFREND level III

They trust us:

For a tailor-made service, our engineering department will work with you to create a service customized to your needs and industrial processes.

Contact an expert

Non-destructive testing: a closer look at our methods

ACFM (Alternating Current Field Measurement) is a non-destructive inspection method for detecting and sizing fatigue cracks in all ferromagnetic metals (steel, stainless steel, bronze, titanium, aluminum, etc.). It can be used both in air and underwater, with no need for surface preparation.

Installation can be carried out manually or remotely using robots.

The ACFM inspection technique is based on the principles of electromagnetism. It is based on the measurement of variations in a magnetic field induced in a conductive material. Suitable for detecting open or underlying fatigue cracks, it can also be used in the presence of a coating.

The ACFM technique is suitable for controlling :

Welding (butt, fillet or clinch) with multi-element probes or elongated "pencil" probes,
Threads (specially shaped probes),
Flat component surfaces thanks to multi-element probes with a wider field of action,
Turbine shaft leave,
Trees of boat chairs,
External tube surfaces.

The advantages of ACFM control :

Alternative to existing surface methods (dye penetrant testing and magnetic particle inspection),
No need for surface preparation or chemicals,
Can be tested on non-conductive coatings up to 10 mm thick,
With its acquisition backup system, the ACFM allows you to keep track of the measurements you've made.

Ultrasonic testing is one of the most widely used volumetric non-destructive testing (NDT) methods, designed to detect any defects in industrial parts and structures during manufacture or maintenance operations.

Ultrasonic imaging techniques are based on the same principles as conventional ultrasound: a piezoelectric element emits an ultrasonic wave which propagates through the workpiece, reflecting off defects and enabling them to be detected.

Multi-element ultrasound technology (PhasedArray) enables electronic control of the ultrasound beam (beam deflection and focusing), improving inspection performance and speed.
The TOFD (Time Of Flight Diffraction) method is based on the detection and processing of ultrasonic signals diffracted by anomalies in the material of the part being tested.

The advantages of ultrasonic testing :

Alternative to existing surface methods (dye penetrant testing and magnetic particle inspection),
No need for surface preparation or chemicals,
Can be tested on non-conductive coatings up to 10 mm thick,
With its acquisition backup system, the ACFM allows you to keep track of the measurements you've made.

LYFT testing is a non-destructive testing method for detecting extensive thickness losses on piping or capacities, through coatings and thermal insulation.

LYFT is a technique based on high-performance pulsed eddy currents, enabling real-time C-scan mapping of corrosion through coatings, thick metal walls and lagging.

This technique enables rapid inspection of wall thicknesses, without removing the lagging or coating, and in places with variable geometries that are difficult to access.

The advantages of LYFT control :

Inspection without shrinkage of coating or insulation up to 203mm,
Control through aluminum, stainless steel or galvanized steel insulation,
When the system is running,
Lorsque la température au contact est <à120°C,
When insulation is damp,
When the surface is irregular or encrusted (biomass),
When insulation is uneven or heterogeneous,
Underwater control (up to10m),
Estimation of thickness loss over extensive corrosion.

Your technical requirements

Your customer expectations for NDT/END services.

Technical expertise :

COFREND-certified personnel: recognition of technical skills
Journeyman files for new entrants
Follow-up and maintenance of skills by dedicated service
Quality awareness (mastering the technical gesture, fraud and falsification...) through Blue campus, on-site talks, PPE...
PFI support

Mastering reference systems :

Operational staff HN3
Q3SER cell with on-call number for interventions

Onet Technologies advantages

A unique platform of experts: engineers and technicians specialized in conventional and advanced NDT techniques
Level III-certified experts

Our markets

Nuclear power plants
Industrial sites
France and international
Oil & Gas market

For a tailor-made service, our engineering department will work with you to create a service customized to your needs and industrial processes.

Contact an expert

Non-destructive testing: our technicians and agents talk about it

Aurélien is a non-destructive inspector at Onet Technologies, working on installations to ensure that the equipment inspected is not damaged, such as looking for cracks, the absence of corrosion or indications due to probing.

Nuclear power has always been interesting to me, and the activities are many and varied. I was looking for a job that would also allow me to travel and discover other working environments. The nuclear sector is an industry at the cutting edge of technology, which means we have to work rigorously.

In his job, Aurélien has to be rigorous and patient. It's a meticulous job, as he can look for indications of less than a millimeter. The specific nature of the working environment, with its radiation and/or contamination, requires him to take a more global view than that of his interventions, and vigilance is the watchword of his missions.

I like my job because of the variety of projects I get to work on. It's not a one-off job, the customer is different, the standards are different, and so are the techniques applied. You get to see a lot of things and gain a lot of experience. In non-destructive testing, our main customer is EDF, with a strong focus on nuclear power plants, but we also work for Naval Group and CEA. Our business is spread all over France. Right now, I'm on the Flamanville EPR site, checking welds. Our customers' main requirement is to implement specific intervention procedures to detect any anomalies that could jeopardize the proper operation and safety of basic nuclear installations. At Onet Technologies, our priority is to be able to respond to their requests by applying the most appropriate method, while guaranteeing the safety of our teams and the non-degradation of their installations.

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Our Non-destructive tests (NDT) solutions

A complete NDT offer: