Ad-hoc inductors for defect detection in any orientation by induction thermography

When implementing an inspection system based on inductive thermography, selecting the camera and corresponding generator is very important, as they determine the scope of defect size to be detected.
However, this is not sufficient to ensure a complete automated inspection of a specific component. Critical elements determining the possibility of implementing a system based on inductive thermography in an industrial environment are:

  • Automation / Robotisation 
  • Inductor

For automation, it is important to consider the component and the manufacturing environment itself. In addition, an optimised inductor for the component under consideration will allow improved quality inspections and larger surface area captures, minimising overall inspection times.
LORTEK works in these two areas and in the design of specific inductors for certain components, in particular. As a result, thanks to the work carried out in the past few years, an inductor capable of detecting cracks in any direction has been developed. This is essential to minimise the number of captures and therefore, overall inspection time.

Target/Challenge

LORTEK is working to develop ad-hoc inductors for clients with a dual aim:

  • improve inspection measurements, ensuring inspection covers 100% of the inspectable area; 
  • maximise inspection areas.

Depending on the case, measurement improvement may result in better defect capture. Regarding area maximisation, it has a direct impact on time: reducing overall inspection time.

To date, all inductors proposed have been rigid, but last year LORTEK started to work with flexible inductors, which can adapt even better to the component under consideration.

Result

Incorporating inductors designed and manufactured ad-hoc for a specific component inspection provides high added value for the client. With a standard inductor, you cannot ensure a complete inspection and an optimal window size.
This element, together with automation implemented for the client, results in a unique system fully optimised for the case in question, which offers the client a competitive differentiation.

Sectors

Aeronautics-Aerospace

Automotive sector

Components and capital goods

Renewable energy

Railway