Johannes Vrana

Johannes Vrana
Vrana GmbH - NDE Consulting and Solutions · CEO

PhD

About

148
Publications
54,841
Reads
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1,164
Citations
Citations since 2017
96 Research Items
742 Citations
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Introduction
Dr. Johannes Vrana, born in 1978, studied physics at the Technical University of Munich and finished his PhD in 2008 at the University of Saarland on Thermographic Testing. Afterwards he worked for Siemens Power and Gas in Orlando, Berlin and Munich, was responsible for all supplier related NDE questions and was the Chairman of the Siemens NDE Council. Besides worldwide harmonization of NDT specifications and introduction of statistical tools, he was responsible for the development of automated UT and SAFT. In 2015 he started his own company “Vrana GmbH” in Rimsting, Germany which specializes in NDE consulting, R&D, and software development.
Additional affiliations
May 2020 - present
Springer Nature
Position
  • Editor
Description
  • - Member of the Editorial Board of the Journal of Nondestructive Evaluation - Editor for NDE 4.0
February 2020 - present
RIVK
Position
  • Research Director
November 2015 - present
Vrana GmbH - NDE Consulting and Solutions
Position
  • CEO
Education
June 2004 - February 2008
Universität des Saarlandes
Field of study
  • Physics
November 1998 - February 2004

Publications

Publications (148)
Preprint
Full-text available
The Fourth Industrial Revolution, ushered by the deeper integration of digital technologies into professional and social spaces, provides an opportunity to meaningfully serve society. Humans have tremendous capability to innovatively improve social well-being when the situation is clear. Which was not the case during the first three revolutions. Th...
Book
Full-text available
DICONDE (Digital Imaging and Communication in Non-Destructive Evaluation) is an open international standard for storing and exchanging industrial test data and process-related information. The DICONDE standard defines both the semantics for structured storage of data and the network-based communication between two endpoints. This allows many test p...
Book
Full-text available
DICONDE (Digital Imaging and Communication in Non-Destructive Evaluation) ist ein offener internationaler Standard zur Speicherung und zum Austausch industrieller Prüfdaten und prozessbezogener Informationen. Der DICONDE-Standard definiert sowohl die Semantik für eine strukturierte Speicherung von Daten als auch die netzwerkbasierte Kommunikation z...
Conference Paper
Reliability evaluations are useful tools to assess the capability of non-destructive testing (NDT) methods. The knowledge of reliability leads to a deeper understanding of the methods applied and to a more advanced use of equipment, material and work force. In addition, each condition assessment also depends on the reliability of the inspection dat...
Conference Paper
Digital transformation is the most misused term in recent years in addition to being a popular sales buzzword. Part of the confusion comes from it being a long journey with an ever-changing destination and new pathways emerging all the time. All of us can only see a small fraction of the vast landscape based on our past experiences and current cont...
Article
In the summer of 2021, Singh and Garg collaborated with an artificial intelligence (AI) agent (GPT-3) to research human factors in decision-making in the context of NDE 4.0. They created an interface script to engage with AI. The outcome was published in the Journal of Nondestructive Evaluation in August 2021. The authors shared their experience in...
Article
Digital transformation is at the core of the current industrial revolution. The nondestructive evaluation (NDE) sector has started embracing it under the broad theme of NDE 4.0. It is changing the value proposition of inspection processes from “an undesirable quality check” to a “much-needed source of data, information, and knowledge,” from manufac...
Article
Full-text available
Digital Transformation is at the heart of the current industrial revolution, and it won’t spare the non-destructive evaluation (NDE) sector. It is changing the value proposition of inspection processes from ‘an undesirable quality check’ to a ‘much-needed source of data, information, and knowledge’ from manufacturing to service life maintenance. No...
Article
Full-text available
Digital transformation is the most misused term in recent years in addition to being a popular sales buzzword. Part of the confusion comes from it being a long journey with an ever-changing destination and new pathways emerging all the time. All of us can only see a small fraction of the vast landscape based on our past experiences and current cont...
Article
Full-text available
Digital transformation is the most misused term in recent years in addition to being a popular sales buzzword. Part of the confusion comes from it being a long journey with an ever-changing destination and new pathways emerging all the time. All of us can only see a small fraction of the vast landscape based on our past experiences and current cont...
Article
Full-text available
Usage of non-destructive testing or evaluation (NDT/E) techniques is widely accepted across various industries all over the world in order to maintain certain safety and quality standards. However, not many countries really perform the reliability evaluation of their NDT techniques. In this context, this article discusses the importance of reliabil...
Article
Full-text available
Regardless of its local name, fahrplans, hoja de ruta or feuille de route, Roadmaps through time have been instru-mental for guiding and thrusting sociocultural, economic, technological and even political changes around the world. When recently a diverse community of NDE 4.0 stakeholders, dispersed over continents and industries, began to interact...
Presentation
Regardless of its local name, fahrplans, hoja de ruta or feuille de route, Roadmaps through time have been instrumental for guiding and thrusting sociocultural, economic, technological, and even political changes around the world. When recently a diverse community of NDE 4.0 stakeholders, dispersed over continents and industries, began to interact...
Conference Paper
Regardless of its local name, fahrplans, hoja de ruta or feuille de route, Roadmaps through time have been instrumental for guiding and thrusting sociocultural, economic, technological, and even political changes around the world. When recently a diverse community of NDE 4.0 stakeholders, dispersed over continents and industries, began to interact...
Presentation
Non-destructive testing (NDT) became an indispensable element of condi-tion assessment in civil infrastructure and many other safety-related indus-tries. Each NDT method has unique strengths and weaknesses, and there is increased interest in using them in concert to provide the best overall assess-ment. However, the use of the full potential of NDT...
Article
Full-text available
‘What you don't know can't hurt you’ does NOT apply to Digital Transformation, as it is changing the value proposition from ‘competitive advantage’ to a ‘must do initiative’. The NDE has seen revolutions somewhat parallel to industry. The current trends in cyber-physical technologies offer new possibilities wherein the inspectors can see the anomal...
Conference Paper
Full-text available
Seit beinahe 50 Jahren werden Zuverlässigkeitsbewertungen zerstörungsfreier Prüfverfahren erfolgreich in unterschiedlichen Industriebranchen eingesetzt. Dennoch gibt es weiterhin viele Vorbehalte, da die Bewertungsgrundlage nicht standardisiert ist und konkrete Handlungsanweisungen fehlen. Dem gegenüber steht die Anerkennung in der ZfP-Community. E...
Conference Paper
Full-text available
Im Rahmen des WIPANO Vorhabens „normPOD“ wird eine Richtlinie zur experimentellen und simulationsgestützten Zuverlässigkeitsbewertung erstellt. In der Richtlinie wird die Zuverlässigkeitsbewertung beispielhaft für zwei praktische Anwendungsfälle vorgestellt. Ein Anwendungsfall beschäftigt sich mit konventionellen Ultraschallprüfungen an ferritische...
Conference Paper
Full-text available
ZfP 4.0, NDE 4.0, oder die ZfP im Zeichen der Digitalisierung und Digitalen Transformation, begann 2017 in Deutschland [2,3] und wird zunehmend zu einem weltweiten Trend in der ZfP Community. Dieser Vortrag bietet einen Überblick über NDE 4.0 "Digitization", "Digitalization" und "Digital Transformation" Aktivitäten, wie die Erstellung der "Guidelin...
Conference Paper
This conversation style keynote is aimed at inspiring leaders to embark on the digital transformation journey in domain of inspections for stakeholder safety and economic value. Presenters have been leading the topic for the last 4 years with extensive research on why, what, and how of NDE 4.0. In this presentation they will discuss (a) trends in t...
Book
This handbook comprehensively covers the cutting-edge trends and techniques essential for the integration of nondestructive evaluation (NDE) into the changing face of the modern industrial landscape. In particular, it delves into the marriage of NDE with new techniques in e.g. data mining, cloud computing and autonomous operation, highlighting the...
Article
Informatization is defined as the process by which information technologies, such as the World Wide Web and other communication technologies, have transformed economic and social relations to such an extent that cultural and economic barriers are minimized. What does this mean for nondestructive testing and evaluation (NDT/E)? In short: informatiz...
Chapter
Full-text available
Cyber technologies are offering new horizons for quality control in manufacturing and safety assurance of physical assets in service. The line between non-destructive evaluation (NDE) and Industry 4.0 is getting blurred since both are sensory data-driven domains. This multidisciplinary approach has led to the emergence of a new capability: NDE 4.0....
Chapter
Full-text available
Digital technologies provide significant efficiency gains to NDE (Nondestructive Evaluation) procedures. Digitalization of NDE further enhances its effectiveness and simplifies the processes. Digital transformation at the NDE ecosystem level can create unprecedented value for multiple stakeholders simultaneously. The aspects of technology, informat...
Chapter
Full-text available
The world of non-destructive evaluation (NDE) has seen digitization since the third revolution. Over the last decade or so, digitalization has also been observed to a point where it is now ready for digital transformation, in sync with the fourth industrial revolution. The intermediary step of digitalization overlaps the third and fourth revolution...
Chapter
Full-text available
As with the previous revolutions, the goal of the fourth revolution is to make manufacturing, design, logistics, maintenance, and other related fields faster, more efficient, and more customer centric. This holds for classical industries, for civil engineering, and for NDE and goes along with new business opportunities and models. Core components...
Book
Adapted for ASNT with links to additional YouTube videos not in the original edition Make NDE 4.0 work for you! The World of NDE 4.0: Let the Journey Begin presents the fundamentals of NDE 4.0 for researchers, developers, users, or service providers. It provides an outline for the development and profitable design of a working environment based on...
Article
Full-text available
Across so many industries, non-destructive evaluation has proven its worth time and again through quality and safety assurance of valuable assets. Yet, over time, it became underappreciated in business decisions. In most cases, the data gathered by NDT is used for quality assurance assessments resulting in binary decisions. And we seem to miss out...
Chapter
Full-text available
Digital technologies provide significant efficiency gains to NDE (Nondestructive Evaluation) procedures. Digitalization of NDE further enhances its effectiveness and simplifies the processes. Digital transformation at the NDE ecosystem level can create unprecedented value for multiple stakeholders simultaneously. The aspects of technology [1], info...
Chapter
Full-text available
The world of non-destructive evaluation (NDE) has seen digitization since the third revolution. Over the last decade or so, digitalization has also been observed to a point where it is now ready for digital transformation, in sync with the fourth industrial revolution. The intermediary step of digitalization overlaps the third and fourth revolution...
Book
Full-text available
Digital transformation of the inspection systems is inevitable. Pursuit of this opportunity amidst uncertainty makes “a well-defined purpose” and “robust process” essential. This book provides an overview of the purpose of NDE 4.0 (why?), underlying technologies (what?) and ways to overcome the challenges (how?) to successfully pursue confluence of...
Article
Full-text available
'What you don't know can't hurt you' does NOT apply to Digital Transformation, as it is changing the value proposition from 'competitive advantage' to a 'must do initiative'. The NDE has seen revolutions from being able to detect very small surface anomalies to obscure material changes, and digital data processing. The current trends in cyber-physi...
Chapter
Full-text available
As with the previous revolutions, the goal of the fourth revolution is to make manufacturing, design, logistics, maintenance, and other related fields faster, more efficient, and more customer centric. This holds for classical industries, for civil engineering, and for NDE and goes along with new business opportunities and models. Core components...
Book
This handbook comprehensively covers the cutting-edge trends and techniques essential for the integration of nondestructive evaluation (NDE) into the changing face of the modern industrial landscape. In particular, it delves into the marriage of NDE with new techniques in e.g. data mining, cloud computing and autonomous operation, highlighting the...
Conference Paper
Zusammenfassung Die ZfP ist im Bauwesen bisher deutlich weniger reguliert (und auch akzeptiert) als in anderen Industriebereichen. Zum Beispiel gibt für die meisten Prüfverfahren weder Normen noch ein allgemein akzeptiertes Ausbildungs-und Zertifizie-rungssystem. Dies hat auch Konsequenzen für die Digitalisierung. Im Gegensatz dazu wird im Bauwesen...
Article
Full-text available
Like with the previous revolutions the goal of the fourth revolution is to make manufacturing, design, logistics, maintenance, and other related fields faster, more efficient, and more customer centric. This holds for classical industries, for civil engineering, and for NDE and goes along with new business opportunities and models. Core components...
Conference Paper
Full-text available
Seit 1999 existiert das MIL-HDBK 1823, die amerikanische Richtlinie zur Erstellung einer Probability of Detection (POD; Fehlerdetektionswahrscheinlichkeit). Obwohl das Dokument als internationaler Stand der Technik angesehen wird, ist ihre Handhabung für die allgemeine Anwendung in der ZfP-Praxis von einigen Nachteilen begleitet: 1. Die beschriebe...
Article
Full-text available
The world of non-destructive evaluation (NDE) has seen digitisation since the Third Industrial Revolution. Over the last decade or so, we have also observed digitalisation, to a point where it is now ready for digital transformation, in sync with the Fourth Industrial Revolution (Industry 4.0). This, however, needs serious connectivity of technolog...
Chapter
Full-text available
Cyber technologies are offering new horizons for quality control in manufacturing and safety assurance of physical assets in service. The line between non-destructive evaluation (NDE) and Industry 4.0 is getting blurred since both are sensory data-driven domains. This multidisciplinary approach has led to the emergence of a new capability: NDE 4.0....
Conference Paper
Full-text available
Like with the previous revolutions the goal of the fourth revolution is to make manufacturing, design, logistics, maintenance, and other related fields faster, more efficient, and more customer-centric. This holds both for classical industries, for civil engineering, and for NDE and goes along with new business opportunities and models. Core compon...
Conference Paper
Full-text available
‘What you don't know can't hurt you’ does NOT apply to Digital Transformation. The current pandemic (Covid-19) is changing the value proposition of digital transformation from ‘competitive advantage’ to a ‘must do initiative’. The hidden cost of not adopting Industry 4.0 is likely to be far greater than the visible cost of adopting it. In the inspe...
Article
Full-text available
Im vorliegenden Artikel werden die Ergebnisse des Fragebogens der DGZfP zur Thematik „ZfP 4.0“ vorgestellt und diskutiert. Die Befragung zielte darauf ab, das allgemeine Verständnis der ZfP-Community zur Begrifflichkeit „ZfP 4.0“ herauszuarbeiten und daraus Bedarfe und Handlungsempfehlungen für die identifizierten Herausforderungen abzuleiten. Auße...
Article
Full-text available
The world of non-destructive evaluation (NDE) has seen digitisation since the third revolution. Over the last decade or so, we have also observed digitalisation, to a point where it is now ready for digital transformation, in sync with the fourth industrial revolution. This however needs serious connectivity of technology and processes, which furth...
Conference Paper
Full-text available
With each revolution industry, maintenance, capital and consumer devices, infrastructure, society, and many more are growing closer with rising mutual influence. The third revolution started the digitization of data and the digitalization of processes, which are now omnipresent. The fourth revolution takes the next step by digital transformation, b...
Conference Paper
Full-text available
NDE 4.0 Keynote
Presentation
Full-text available
Article
Full-text available
Cyber technologies are offering new horizons for quality control in manufacturing and safety assurance in-service of physical assets. The line between non-destructive evaluation (NDE) and Industry 4.0 is getting blurred since both are sensory data-driven domains. This multidisciplinary approach has led to the emergence of a new capability: NDE 4.0....
Article
Large rotor forged parts, which are usually one of the most critical components in land-based turbines and generators for power generation, require a complex volumetric test for a sufficient service life. This is usually performed manually or automatically with ultrasound. New requirements, designs and materials require more sensitive testing. This...
Chapter
Inhalt Vorwort . . . . . . . . . . . . . . . . . . . 1 Plenarvortrag Digitalisierung für das Prüfprozessmanagement in der Fertigungsmesstechnik. . . . . 3 Teil I: Messunsicherheit praxisgerecht bestimmen 2021 Thermodynamische und chemische Messgrößen Der absolute pH-Wert pHabs und seine Messunsicherheit . . . . . . . . . . 13 Messunsicherheitsbetra...
Article
Full-text available
What you don't know can't hurt you' does NOT apply to Digital Transformation. The current pandemic (Covid-19) is changing the value proposition of digital transformation from 'competitive advantage' to a 'must do initiative'. The hidden cost of not adopting Industry 4.0 is likely to be far greater than the visible cost of adopting it. In the inspec...
Presentation
Full-text available
https://youtu.be/365kc-sRcmY
Conference Paper
Full-text available
Historiker unterteilen die industrielle Revolution in drei Phasen: Mechanisierung (Dampfmaschine), technische (Elektronik, Massenproduktion) und digitale (Mikroelektronik) Revolution. Eine ähnliche Entwicklung gab es bei der zerstörungsfreien Prüfung (ZfP): Werkzeuge, wie Linsen oder Stethoskope, die es ermöglichten, die menschlichen Sinne zu verbe...
Article
Up until recently, the industrial revolution was divided into three phases: (1) simple mechanization; (2) mass production; and (3) automation. Similarly, nondestructive evaluation (NDE) can be divided into three phases: (1) tools, such as lenses, sharpened the human senses; (2) the conversion of waves made the invisible visible by offering a “look”...
Article
Full-text available
Die industrielle Revolution wird von Historikern in drei Phasen unterteilt: Die Erfindung der Dampfmaschine (Mechanisierung), die Elektrizität (Massenproduktion) und die Mikroelektrische Revolution (Automatisierung). Ähnlich bei der zerstörungsfreien Materialprüfung: Werkzeuge, wie Linsen oder Stethoskope erlauben die menschlichen Sinne zu schärfen...
Article
Full-text available
Große Rotor-Schmiedeteile, die in der Regel eines der kritischsten Bauteile in landgestützten Turbinen und Generatoren für die Energieerzeugung darstellen, setzen für eine ausreichende Lebensdauer eine aufwändige volumetrische Prüfung voraus. Diese wird für gewöhnlich manuell oder automatisiert mit Ultraschall durchgeführt. Durch neue Anforderungen...
Preprint
Full-text available
Historians split recent times into three industrial revolutions: mechanization (steam power), technical (electric power and mass production), and digital (computing and microelectronics). The world of NDE has a parallel: tools to sharpen human senses, wave application to view inside the components, and digital processing and automation. As the indu...
Article
Full-text available
Die Ergebnisse zerstörungsfreier Prüfungen und bruchmechanischer Analysen großer Schmiedeteile werden zur Vorhersage der Bauteillebensdauer und zur Definition von Wartungszyklen verwendet. Bei der volumetrischen Ultraschallprüfung können Prüfstücke ohne Anzeige Materialinhomogenitäten mit einer Reflektivität kleiner der Nachweisgrenze aufweisen. Da...
Presentation
Full-text available
Historians split the industrial revolution into three phases: mechanization (steam engine), technical (electronics, mass production) and digital (microelectronics) revolution. A similar development occurred in nondestructive testing: tools, like lenses or stethoscopes allowed to enhance human senses, the conversion of waves makes the non-visible vi...
Preprint
Full-text available
The industrial revolution is divided into three phases by historians: The invention of the steam engine (mechanization), electricity (mass production) and the microelectric revolution (automation). There was a similar development in non-destructive evaluation: tools such as lenses or stethoscopes allowed the human senses to be sharpened, the conver...
Presentation
Full-text available
- Definition Industry 4.0 and NDE 4.0 - Basics of Industry 4.0 and NDE 4.0 including , Industrial Internet of Things (IIOT), Digital Twin, Smart Factory, .... - Standard software interfaces (OPC UA and DICONDE) and standard data formats for easy access
Article
Active thermography with electromagnetic excitation, is a reliable non-destructive evaluation method with a wide range of applications. It allows detecting inhomogeneities, like cracks, at or close to the surface of conductive components fast and reliable utilizing infrared imaging. Electric current can be used in two ways for thermography: In indu...
Article
Full-text available
Die industrielle Revolution wird von Historikern in drei Phasen unterteilt: Die Erfindung der Dampfmaschine (Mechanisierung), die Elektrizität (Massenproduktion) und die Mikroelektrische Revolution (Automatisierung). Eine ähnliche Entwicklung gab es bei der zerstörungsfreien Materialprüfung: Werkzeuge wie Linsen oder Stethoskope erlaubten, die mens...
Data
Die industrielle Revolution wird von Historikern in drei Phasen unterteilt: Die Erfindung der Dampfmaschine (Mechanisierung), die Elektrizität (Massenproduktion) und die Mikroelektrische Revolution (Automatisierung). Ähnlich bei der zerstörungsfreien Materialprüfung: Werkzeuge, wie Linsen oder Stethoskope erlaubten die menschlichen Sinne zu schärfe...
Conference Paper
Full-text available
Bruchmechanische Untersuchungen werden zur Vorhersage der Lebensdauer und der Wartungszyklen benutzt. Dabei wird davon ausgegangen, dass auch Objekte ohne detektierte Anzeigen Materialfehler mit einer Reflektivität kleiner der Nachweisgrenze aufweisen können. Keine detektierte Anzeige bedeutet daher für Bauteilauslegung, dass sie eine konservative...
Conference Paper
Full-text available
Die industrielle Revolution wird von Historikern in drei Phasen unterteilt: Die Erfindung der Dampfmaschine (Mechanisierung), die Elektrizität (Massenproduktion) und die Mikroelektrische Revolution (Automatisierung). Ähnlich bei der zerstörungsfreien Materialprüfung: Werkzeuge, wie Linsen oder Stethoskope erlaubten die menschlichen Sinne zu schärfe...
Conference Paper
Full-text available
Die Ultraschallprüfung mittels Synthetic Aperture Focusing Technique (SAFT) bietet mehrere Vorteile: Sie verbessert Nachweisgrenze, Defektlokalisierung und die Möglichkeiten zur Trennung nahe benachbarter Defektanzeigen. Siemens hat dazu eine Software entwickelt, die eine schnelle SAFT-Rekonstruktion (2D/3D) mit der anschließenden Visualisierung re...
Conference Paper
Full-text available
Kurzfassung: Trotz moderner Sensortechnologien und Rekonstruktionsmethoden, findet die manuelle und automatisierte Ultraschallprüfung durch konventionelle Senkrecht-und Winkelprüfköpfe vielfach industriellen Einsatz. Um einen flexiblen Prüfeinsatz und die Prüfbarkeit von einfachen sowie komplexen Geometrien zu gewährleisten, werden dort oftmals Vor...
Conference Paper
Full-text available
Große Rotor-Schmiedeteile, die üblicherweise eine der kritischsten Bauteile in landgestützten Turbinen und Generatoren für die Energieerzeugung darstellen, setzen für eine ausreichende Lebensdauer eine aufwändige volumetrische Prüfung voraus. Diese wird üblicherweise manuell oder automatisiert mit Ultraschall durchgeführt. Durch neue Anforderungen,...
Conference Paper
Full-text available
Turbinenscheiben unterliegen im Betrieb hohen Beanspruchungen und werden daher im Rahmen des Herstellungsprozesses mit Ultraschall geprüft. Bei besonders hoch belasteten Scheiben wird inzwischen – neben der klassischen Ultraschallprüfung - eine SAFT Analyse (Synthetic Aperture Focusing Technique) durchgeführt, durch die das Signal-Rausch-Verhältnis...
Data
Große Rotor-Schmiedeteile, die üblicherweise eine der kritischsten Bauteile in landgestützten Turbinen und Generatoren für die Energieerzeugung darstellen, setzen für eine ausreichende Lebensdauer eine aufwändige volumetrische Prüfung voraus. Diese wird üblicherweise manuell oder automatisiert mit Ultraschall durchgeführt. Durch neue Anforderungen,...
Preprint
Full-text available
Die industrielle Revolution wird von Historikern in drei Phasen unterteilt: Die Erfindung der Dampfmaschine (Mechanisierung), die Elektrizität (Massenproduktion) und die Mikroelektrische Revolution (Automatisierung). Eine ähnliche Entwicklung gab es bei der zerstörungsfreien Materialprüfung: Werkzeuge, wie Linsen oder Stethoskope erlaubten die mens...
Article
https://dichtdigital.isgatec.com/de/profiles/1d1042c9c353/editions/ff9ef823eafb54a67fce/pages/page/22 MESS- UND PRÜFTECHNIK – Die zerstörungsfreie Materialprüfung (ZfP) ermöglicht den Blick in das Innere von Komponenten, Fügestellen und Klebeverbindungen und liefert damit die optimale Datenbasis für Prozessüberwachung, -verbesserung, für Lebensdaue...
Presentation
Full-text available
Forgings, like most demanding components, are inspected with volumetric and surface detection NDT methods, either manually or using automated systems. The data collected during automated inspection gets processed and analyzed. Similarly, the inspector analyzes the information he sees during manual inspections. The results, like size and position of...
Presentation
Full-text available
In the field of ultrasonic testing there are two key questions: Which defects can be found and – in the case indications are found – do they restrict the use of the part? Regarding both questions, the prerequisite is a method for defect sizing. Over the last decades sizing methods were established like DAC (Distance Amplitude Correction) or DGS (Di...
Article
Most demanding components – for example heavy rotor forgings for the energy sector – are inspected with volumetric and surface detection NDE methods – either manually or using automated systems. The data collected during automated inspection gets processed and analyzed. Similarly, the inspector analyzes the information he sees during manual inspect...
Conference Paper
Full-text available
Active thermography with electromagnetic excitation, meaning induction and conduction thermography, is a reliable NDE method with a wide range of applications. Over the past years the basics of the electromagnetic excitation, including the influence of the material of the component to be tested and the necessary post-processing algorithms have been...
Conference Paper
Full-text available
Sizing of indications and the determination of the inspection sensitivity are core tasks in ultrasonic testing. They ensure that critical inhomogenities can be detected and assessed. For the Synthetic Aperture Focussing Technique (SAFT) the sizing of indications is currently performed by evaluating the spatial extent in the reconstruction result, i...
Conference Paper
Full-text available
In the field of ultrasonic testing there are two key questions: Which defects can be found and-in the case indications are found-do they restrict the use of the part? Regarding both questions, the prerequisite is a method for defect sizing. Over the last decades sizing methods were established like DGS (Distance Gain Size) or DAC (Distance Amplitud...
Article
Active thermography via electromagnetic excitation is a non-destructive evaluation method with a wide range of applications. It is a quick and reliable means for detecting inhomogeneities like cracks at or close to the surface of conductive components utilizing infrared imaging. Electric current can be used in two ways for thermography: In inductio...
Cover Page
The cover provides a look into a forged shaft using ultrasonic computed tomography. Ultrasonic CT is a game changer in ultrasonic testing which uses analytics to reconstruct and image the volume of the tested component. Besides the large scale industrial application, this work presents how the synthetic aperture focusing technique (SAFT) grows from...
Article
Forgings, being usually one of the most critical components especially in power generation machinery, require intensive volumetric inspection to guarantee a sufficient lifetime. This is usually accomplished by manual or automated ultrasonic testing. The authors are reporting about a game changer in ultrasonic testing: Ultrasonic Computed Tomography...
Presentation
Full-text available
Active thermography, using electromagnetic excitation, is a non-contacting, non-destructive evaluation method with a wide range of applications. It allows detecting inhomogenities, like cracks, at or close to the surface of metallic components fast and reliable utilizing infrared imaging. Electric current can be used in two ways for thermography: I...
Conference Paper
Full-text available
Most demanding components-for example heavy rotor forgings for the energy sector-are inspected with volumetric and surface detection NDE methods-either manually or using automated systems. The data collected during automated inspection gets processed and analyzed. Similarly, the inspector analyzes the information he sees during manual inspections....
Conference Paper
Full-text available
Active thermography, using electromagnetic excitation, is a non-contacting, non-destructive evaluation method with a wide range of applications. It allows detecting inhomogenities, like cracks, at or close to the surface of metallic components fast and reliable utilizing infrared imaging. Electric current can be used in two ways for thermography: I...