Non-Destructive Testing

Nature Communications 11/2023

Ultrasonic barrier-through imaging by Fabry-Perot resonance-tailoring panel

Authors:

Chung Il Park, Seungah Choe, et al.

Contents:

• Ultrasonic imaging through nearly impenetrable metal barriers or the human skull remains an unresolved challenge
• Applying a Fabry-Perot resonance approach and resonance tailoring panels the authors show that ultrasonic transmission through otherwise impenetrable barriers can be achieved
• XARION's optical hydrophone (Eta100L Ultra) was employed to capture ultrasonic signals in the experiments
• The newly developed method enables almost equivalent image quality as without barriers and has the potential to improve ultrasonic imaging

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Composite Structures 10/23

Low-velocity impact behaviour of biocomposite laminates reinforced by flax, basalt and hybrid fibres at various temperatures: Analytical, numerical and experimental results

Authors:

Valentina Giammaria, Simonetta Boria, Josef Pörnbacher, et.al.

Contents:

• The impact behavior of bio-composites reinforced with flax, basalt and hybrid fibers was investigated
• XARION’s LEA method was used to assess the internal damage of the composites after impact

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Springer 03/2022

Handbook of Nondestructive Evaluation 4.0

Authors:

Norbert Meyendorf, Nathan Ida, et.al.

Contents:

• This handbook is a comprehensive overview of advanced NDE technologies for use in many different industrial applications
• XARION is represented with a chapter on its innovative automated spot-weld inspection technology

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Composite Structures 05/2022

Effect of basalt intraply hybridization on the damage tolerance of flax laminates: Experimental analysis and analytical modeling under low-velocity impact

Authors:

Elena Raponi, Balthasar Fischer, Josef Pörnbacher et. al.

Contents:

• Flax, basalt, and hybrid flax/basalt/epoxy composites were subjected to low velocity impact tests to study their toughness
• The samples were subsequently investigated using XARION’s contact and couplant-free Laser Excited Acoustics (LEA) method
• The LEA method allowed detection and quantitative assessment of internal damages in the different composites

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Materials Evaluation 01/2021

Laser-Excited Acoustics for Contact-Free Inspection of Aeropace Composites

Authors:

Matthias Brauns, Fabian Lücking, et. al.

Contents:

• XARION published an article in “Materials Evaluation” together with Northrop Grumman Corp. introducing LEA NDT, Laser-Excited Acoustics for contact-free inspection of aerospace composites
• LEA is a novel and fast ultrasound scanning technique with properties that make it an affordable couplant-free alternative for NDT of a variety of aerospace composite materials
• For further information concerning the article please contact us

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Proceedings of IEEE Sensor 2020 Rotterdam 10/2020

Enhanced non-contact ultrasonic testing using an air-coupled optical microphone

Authors:

Georg Kaniak, Wolfgang Rohringer, et. al.

Contents:

• Contact-free scan of a fully packaged chip (Hall sensor) with the optical microphone
• Evaluation of small ceramic parts by air-coupled measurement of acoustic response to a laser pulse

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Ultrasonics 09/2020

Thickness measurement via local ultrasonic resonance spectroscopy

Authors:

Janez Rus, Christian U. Grosse

Contents:

• Local mechanical response to laser-induced ultrasound was recorded with XARIONs optical microphone in order to measure the thickness of a carbon fiber-reinforced polymer plate
• The precision of this arrangement greatly exceeded the precision of conventional methods due to the unique frequency bandwidth of the optical microphone

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Journal of Composite Materials 06/2020

Qualitative comparison of non-destructive methods for inspection of carbon fiber-reinforced polymer laminates

Authors:

Janes Ruz, Alex Gustschin, et.al.

Contents:

• Thirteen different non-destructive methods were compared and qualitatively characterized
• XARIONs Optical Microphone is the only couplant-free method that was tested that allowed an inspection in the MHz-range
• The very good spatial resolution of the Optical Microphone was verified

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Journal of Nondestructive Evaluation 03/2020

Local Ultrasonic Resonance Spectroscopy: A Demonstration on Plate Inspection

Authors:

Janez Rus, Christian Grosse

Contents:

• Local ultrasonic resonance spectroscopy (LURS) is a new approach to ultrasound signal analysis
• XARION’s ultrasonic sensor was used for a LURS scan of a carbon fiber reinforced polymer plate. An advantage in characterizing the features of the specimens could be demonstrated

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Proceedings of SCMT5 2019 London 

Material characterization via contact-free detection of surface waves using an optical microphone

Authors:

Wolfgang Rohringer, Nils Panzer, et al.

Contents:

• Single-sided non-contact measurements of a spot-welded steel plate, an aluminium plate and on a sandstone sample
• The results demonstrate the ability of XARION's technology on a wide range of surfaces and materials

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