scholarly journals Characterization of Ancient Marquetry Using Different Non-Destructive Testing Techniques

2021 ◽  
Vol 11 (17) ◽  
pp. 7979
Author(s):  
Henrique Fernandes ◽  
Jannik Summa ◽  
Julie Daudre ◽  
Ute Rabe ◽  
Jonas Fell ◽  
...  
Keyword(s):  
Cultural Heritage ◽  
Infrared Thermography ◽  
The Other ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
X Ray ◽  
Testing Techniques ◽  
Micro Tomography ◽  
Non Destructive

Non-destructive testing of objects and structures is a valuable tool, especially in cultural heritage where the preservation of the inspected sample is of vital importance. In this paper, a decorative marquetry sample is inspected with three non-destructive testing (NDT) techniques: air-coupled ultrasound, X-ray micro-tomography, and infrared thermography. Results from the three techniques were compared and discussed. X-ray micro-tomography presented the most detailed results. On the other hand, infrared thermography provided interesting results with the advantage of being cheap and easy in the deployment of the NDT method.

scholarly journals Porosity and Inclusion Detection in CFRP by Infrared Thermography

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
C. Toscano ◽  
C. Meola ◽  
M. C. Iorio ◽  
G. M. Carlomagno
Keyword(s):  
Infrared Thermography ◽  
Production Costs ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Evaluation Methodologies ◽  
Slag Inclusions ◽  
Aeronautical Industry ◽  
Testing Techniques ◽  
Lock In ◽  
Non Destructive

The ever wide use of composite materials in the aeronautical industry has evidenced the need for development of ever more effective nondestructive evaluation methodologies in order to reduce rejected parts and to optimize production costs. Infrared thermography has been recently enclosed amongst the standardized non destructive testing techniques, but its usefulness needs still complete assessment since it can be employed in several different arrangements and for many purposes. In this work, the possibility to detect slag inclusions and porosity is analyzed with both lock-in themography and pulse thermography in the transmission mode. To this end, carbon-fiber-peinforced polymers different specimens are specifically fabricated of several different stacking sequences and with embedded slag inclusions and porosity percentages. As main results, both of the techniques are found definitely able to reveal the presence of the defects above mentioned. Moreover, these techniques could be considered complementary in order to better characterize the nature of the detected defects.

scholarly journals Development and Application of Infrared Thermography Non-Destructive Testing Techniques

Sensors ◽  
2020 ◽  
Vol 20 (14) ◽  
pp. 3851
Author(s):  
Zhi Qu ◽  
Peng Jiang ◽  
Weixu Zhang
Keyword(s):  
Nondestructive Testing ◽  
Infrared Thermography ◽  
Infrared Image ◽  
Development Trend ◽  
Thermal Excitation ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Infrared Image Processing ◽  
Testing Techniques ◽  
Non Destructive

Effective testing of defects in various materials is an important guarantee to ensure its safety performance. Compared with traditional non-destructive testing (NDT) methods, infrared thermography is a new NDT technique which has developed rapidly in recent years. Its core technologies include thermal excitation and infrared image processing. In this paper, several main infrared thermography nondestructive testing techniques are reviewed. Through the analysis and comparison of the detection principle, technical characteristics and data processing methods of these testing methods, the development of the infrared thermography nondestructive testing technique is presented. Moreover, the application and development trend are summarized.

Experimental Characterization of an Active Infrared Thermography Heat Source

2021 ◽  
Author(s):  
Benjamin Giron-Palomares ◽  
Abel Hernandez-Guerrero ◽  
Ricardo Romero ◽  
Yang HaiJie
Keyword(s):  
Heat Flux ◽  
Infrared Thermography ◽  
Heating Time ◽  
Heat Fluxes ◽  
Halogen Lamp ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Non Destructive ◽  
Bulb Color

Abstract Accurate knowledge of the heat flux characteristics provided by optical heat sources of long heating time non-destructive infrared thermography techniques is essential to determine the adequate application of such techniques, however detailed characterizations are scarce. Therefore, a thermal and statistical characterization of a halogen lamp was developed. A highly repeatable experimental procedure was used to characterize the heat flux generated at an ideal inspection sample top surface. The characteristics studied were: lamp distance, bulb color, lamp orientation, heat quality, and heating time. The heat flux was determined by using readings of temperature and heat flux from the sample back, and a finite differences lumped capacitance thermal model. Detailed studies using three sensors determined that the heat flux was non-uniform (13% maximum variation). Therefore, a full quantitative characterization of the lamp was developed by using the average of such sensors readings, determining that: this halogen lamp can provide consistent top heat fluxes (although not uniformly distributed) adequate for non-destructive testing infrared thermography, the lamp distance and bulb color affected the amount of heat provided as well as the heat flux uniformity, and lamp orientation did not affect the mean top heat fluxes. This research approach can be used to determine an approximation of the lamp time-averaged heat fluxes for any material with similar top surface optical characteristics. Moreover, the technical data provided are useful to determine the adequacy of heating time, lamp distance, lamp orientation, and bulb color for long heating time non-destructive testing infrared thermography.

Characterization of Aging Behavior of AA6061 Aluminum Alloy Through Destructive and Ultrasonic Non-destructive Testing Techniques

2014 ◽  
Vol 68 (4) ◽  
pp. 561-569
Author(s):  
Meysam Toozandehjani ◽  
Faizal Mustapha ◽  
Nur Ismarrubie Zahari ◽  
Mohd Khairol Anuar Ariffin ◽  
Khamirul Amin Matori ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Non Destructive Testing ◽  
Aging Behavior ◽  
Destructive Testing ◽  
Testing Techniques ◽  
Non Destructive

scholarly journals Inspection of radiant heating floor applying non-destructive testing techniques: GPR and IRT

DYNA ◽  
2015 ◽  
Vol 82 (190) ◽  
pp. 221-226 ◽  
Author(s):  
Susana Lagüela Lopez ◽  
Mercedes Solla Carracelas ◽  
Lucía Díaz Vilariño ◽  
Julia Armesto González
Keyword(s):  
Infrared Thermography ◽  
Ground Penetrating Radar ◽  
Radiant Heating ◽  
Non Destructive Testing ◽  
Ceramic Tiles ◽  
Destructive Testing ◽  
Testing Techniques ◽  
Ground Penetrating ◽  
Non Destructive ◽  
Non Destructive Techniques

The inspection of radiant heating floors requires the use of non-destructive techniques, trying to minimize inspection impact, time and cost, and maximize the information acquired so that the best possible diagnosis is given. With this goal, we propose the application of infrared thermography (IRT) and ground penetrating radar (GPR) for the inspection of radiant heating floors with different floor coatings, in order to evaluate the capabilities and information acquirable with each technique. Specifically, two common floor coatings have been inspected: ceramic tiles and parquet flooring. Results show that each technique provides different information: condition of the pipelines (IRT), geometry and configuration (GPR), concluding that the optimal inspection is constituted by the combination of the two techniques.

Acoustic and Photoacoustic Inspection of Through-Silicon Vias in the GHz-Frequency Band

2017 ◽  
Author(s):  
Sebastian Brand ◽  
Michael Kögel ◽  
Frank Altmann ◽  
Ingrid DeWolf ◽  
Ahmad Khaled ◽  
...  
Keyword(s):  
Quality Assessment ◽  
Frequency Band ◽  
Process Development ◽  
Three Dimensional ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Vertical Interconnection ◽  
Testing Techniques ◽  
Silicon Vias ◽  
Non Destructive

Abstract Through Silicon Via (TSV) is the most promising technology for vertical interconnection in novel three-dimensional chip architectures. Reliability and quality assessment necessary for process development and manufacturing require appropriate non-destructive testing techniques to detect cracks and delamination defects with sufficient penetration and imaging capabilities. The current paper presents the application of two acoustically based methods operating in the GHz-frequency band for the assessment of the integrity of TSV structures.

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