NDE for Safety DEFEKTOSKOPIE 2010

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1 Czech Society for Nondestructive Testing Ceskä spolecnost pro nedestruktivnf testovani NDE for Safety 40lh International Conference and NDT Exhibition 40. mezinarodni konference a vystava NDT techniky PROCEEDINGS SBORNIK PRISPEVKÜ November 10-12, listopad 2010 Pilsen / Plzen, Czech Republic Edited by Pavel Mazal and Lubos Pazdera

mezinarodni konference a vystava NDT techniky PROCEEDINGS SBORNIK PRISPEVKÜ November

2 CONTENTS / OBSAH Josef BAJER, Karel HÄJEK Low-Noise Voltage and Charge Preamplifiers for Piezosensors 3 Nizkosumove napet'ove a näbojove pfedzesilovace pro piezosnimace Jin BEHAL Inspection Reliability in the Mean of Signal Amplitude Interpretation 11 Petr BENES, Jiri FIALKA Main Problems with AE Sensors Calibration 17 Hlavni problemy pfi kalibraci snimaöü AE A.A. DUBOV Development of Magnetic Memory Methods in Russia, Poland, the Czech 25 Republic and other Countries UTOm PA3BHTMA METOflA MArHHTHOfl riamjtth METAHJ1A B pocchu, nonbiue, mexmm h APyrux ctpahax Jiri DVORAK, Bfetislav SKRBEK Acoustic Emission of Magnetic Impulse of Magnetic Spot Method 29 Akustickä emise magnetickych impulsü metody magneticke skvrny Zuzana FAROVÄ, Vaclav KÜS Statistical Methods in Signal Processing and Discrimination 39 Statisticke metody pro zpracoväni signälu a jejich klasifikace Jaroslav FIALA, Pavel MAZAL, Michal KOLEGA, Petr LISKUTlN X-Ray Examination of the Fatigue Process 49 Rentgenograficke zkoumäni ünavoveho procesu Matej FINC, Janez GRUM NDT Wire Connection Investigation in Household Appliances Industry 57 Tomasz GORZELANCZYK, Jerzy HOLA The Use of Acoustic Emission for the Assessment of the Effect of 65 Nonmechanical Service Conditions on the Degeneration and Fatigue Strength of Selected Concretes Radek HEDL, Jindrich FINDA, Girija PARTHASARATHY Optimization of PZT Actuator/Sensor Array for Monitoring of Aircraft Fuselage 73 Panel Using Ultrasonic Lamb Waves Anna HOLA, Krzysztof SCHABOWICZ Nondestructive Tests of Damp Masonry Walls in Buildings of New Residential 81 Complex Jerzy HOtA, tukasz SADOWSKI, Krzysztof SCHABOWICZ Comprehensive Nondestructive Way of Identifying Floor Toppings with Large Surface Area Filip HORT, Frantisek VLASIC, Pavel MAZAL, Ivan MAZÜREK Delaminations in Concrete 89 Detection of Damage of the Automobile Gearbox 95 Detekce poskozenl automobilove pfevodovky III

plitude Interpretation 11 Petr BENES, Jiri FIAL

3 Tomaz KEK, Janez GRUM AE during Laser Cutting and Resistance Spot Welding 103 Libor KELLER Magnetic Field Camera 111 Zobrazovac magnetickeho pole Jan KOLÄR Inspection of the Thick-Walled Dissimilar Weld by the Phased Array Method 117 Kontrola silnostenneho heterogenniho svaru metodou Phased Array Bernard KOPEC What Really Determines the Non-Destructive Testing of Materials? 125 Co skutecne zjisfuje nedestruktivni zkouska materiälü? Marta KORENSKA, Pavel VYROUBAL On the Effect of the Aerating Agent Content in the Concrete Mix on the 133 Consequences of Freeze Cycles Induced Degradation Milan KOSTELECKY, Miloslav PROCHÄZKA Non-Contact Thermography in Equipment Status Diagnostics 141 Nekontaktnl termografie v diagnostice stavu zaffzeni Ivo KUSÄK, Miroslav LUNÄK, Lubos PAZDERA, Libor TOPOLÄR, Vlastimil BILEK Long-Term Monitoring of Hydration and Concrete Curing Using Methods of 149 Impedance Spectroscopy Dlouhodobe sledovänt hydratace a zränf betonu s vyuzitim metody impedancnl Spektroskopie Miroslav LUNÄK, Ivo KUSÄK, Lubos PAZDERA, Libor TOPOLÄR, Vlastimil BILEK Long-Term Monitoring of Concrete Setting by Using Two Electrodes 157 Impedance Spectroscopy Kontlnuälni sledovani tuhnuti betonu dvouelektrodovou impedancnl spektroskopii Miroslava MALA, Jinna SASKOVÄ, VaclavTREPKA Machining Optimization of Selected Parts in Relation to NDT Requirements 161 Optimalizace obräbenl vybranych dilü s ohledem na pozadavky NDT Monika MANYCHOVA Nondestructive Integrity Testing of Sandwiches Made of Hurdis Ceiling 167 Slabs Michal MATYSiK, Iveta PLÖKOVÄ, Marta KORENSKA Nonlinear Ultrasonic Spectroscopy Methods Proper for Defectoscopy of 175 Concrete Parts Lubos PAZDERA, Libor TOPOLAR, Vlastimil BILEK, Jaroslav SMUTNY, Ivo KUSAK, Miroslav LUNAK, Marta KORENSKA, Michal MATYSIK, Pavel MAZAL Application Non Destructive Testing During Concrete Hardening and Setting 183 Vyuziti metod nedestruktivniho testovänl pfi tuhnuti a tvrdnuti betonu IV

125 Co skutecne zjisfuje nedestruktivni zkouska materiälü?

4 Lubos PAZDERA, Libor TOPOLAR, Vlastimil BILEK, Jaroslav SMUTNY Jointed Time Frequency Analysis of Acoustic Emission Signals During 191 Concrete Hardening Analyza signälü akusticke emise casove frekvencnlmi spektry pfi tuhnuti a tvrdnuti betonu Iveta PLäKOVÄ, Michal MATYSIK, Marta KORENSKÄ, Zdenek CHOBOLA Indication of Internal and Surface Defects of Ceramic Tiles by Means of the 199 Impact Echo Method Indikace vnitrntch a povrchovych poruch keramickych materiälü metodou impact echo Miloslav PROCHÄZKA, Roman BENES, Jan JEÜNEK Small Mechanisation in Ultrasonic Inspection 205 Mala mechanizace pfi zkouseni ultrazvukem Mehran ROOHNIA, Ajang TAJDINI, Negin MANOUCHEHRI Effect of Drillings as Artificial Defects on Dynamic Shear Modulus of Wood 211 Maciej ROSKOSZ Metal Magnetic Memory Testing Steels Maciej ROSKOSZ, Micha«BIENIEK of Welded Joints of Ferritic and Austenitic 219 Analysis of the Methodology of the Assessment of the Technical State of a 229 Component in the Method of Metal Magnetic Memory Testing Jaroslaw RYBAK, Krzysztof SCHABOWICZ Survey of Vibrations Generated in Course of Geotechnical Works 237 Jaroslaw RYBAK, Krzysztof SCHABOWICZ Acoustic Wave Velocity Tests in Newly Constructed Concrete Piles 247 Krzysztof SCHABOWICZ Empirical Relations for Nondestructively Determined Strength of Concrete on 255 Different Days of its Maturing V. SYASKO, V. SEVASTYANOV Ultrasonic Angle Beam Transducers with Stabil Properties in Large 263 Temperature Range Ultrazvukove dvojite ühlove sondy se stabilnimi vlastnostmi v sirokem rozsahu teplot Miroslav UHER, Petr BENES Influence of Parameters of Particle Impact on Shape of Acoustic Emission 269 Signal Vliv parametrü närazu cästice na tvar spektra signalu akusticke emise David VARNER, Michal CERNY Monitoring of Acoustic Emission in Destila Micro-Brewery 277 Monitorovanl akusticke emise v mikropivovaru Destila Jan VIT, Zdenek SKÄLA, LukäS STAINER Automated Ultrasonic Testing Of WWER RPV 285 Automatizovane zkouseni tnr typu WER ultrazvukem V

Echo Method Indikace vnitrntch a povrchovych poruch keramickych materiälü metodou impact echo Miloslav PROCHÄZKA, Roman BENES, Jan JEÜNEK Small Mechanisation in Ultrasonic Inspection 205 Mala

5 ABSTRACTS AND PAPERS AFTER DEADLINE Valentin PETROV, Aleksander PETROV New Approach to the Industrial Safety Ensuring 295 Pavel MAZAL, Michal CERNY, Filip HORT, Frantisek VLASIC Application Woodworking of Acoustic Emission Method in the Area of Arboriculture and 301 Vyuzitl metody akusticke emise v oblasti pestovänl a zpracovant dfeva Vaclav KÜS, Jan TLÄSKAL Generalized PHI-Divergences and EM-Algorithm In Acoustic Emission 307 Zobecnene PHI-divergence a EM-algoritmus v akusticke emisi Milan CHLADA, Zdenek PREVOROVSKY AE Source Location by Neural Networks Independent on Material and Scale 317 Changes Lokalizace zdrojü AE neuronovymi sltemi nezävisle na zmänäch materialu a mefitka Jan KOBER, Zdenek PREVOROVSKY, Zuzanka TROJANOVÄ Damage Detection in Mg-Alloys by Nonlinear Ultrasonic Spectroscopy 325 Detekce poskozenl Mg slitin nelinearnl ultrazvukovou spektroskopii Vaclav KOULA, Martin DRÄB, Michal HAVAVKA Exploitation of Acoustic Emission Method For Flow-Accelerated Corrosion 333 (FAC) Monitoring Vyuzitl metody ae pro detekci koroze urychlene proudenfm Zdenek PREVOROVSKY Conjunction of Two Ultrasonic NDT Methods in SHM System 337 Kombinace dvou ultrazvukovych NDT metod pri tvorbe SHM systemu Richard REGAZZO, Vaclav SVOBODA PorovnanI ultrazvukove kontroly trubek s aplikaci metody magneticke pameti 339 materialu Oleksandr STUPAKOV, Ivan TOMAS, Bfetislav SKRBEK Barkhausen Noise Testing of Surface Decarburization of Steel 340 Testovänl oduhlicene vrstvy oceli metodou Barkhausenova sumu Zhong-soo LIM, Taek-ryong SEONG, Kyu-sik PARK Development and Application of Magnetostrictive NDE Technique for the 342 Integrity Assessment of the Steel Strand Embedded in the Concrete Grout Petr DOBSAK Ultrasound for non-destructive testing of composite materials 343 Ultrazvuk pro nedestruktivnl zkou enl kompozitov^ch materiälü VI

and EM-Algorithm In Acoustic Emission 307 Zobecnene PHI-divergence a EM-algoritmus v akusticke emisi Milan CHLADA, Zdenek PREVOROVSKY AE Source Location by Neural Networks Independent on Material and

THE ULTRASONIC TOMOGRAPHY TESTS OF CONCRETE IN FOUNDATION SLAB

THE ULTRASONIC TOMOGRAPHY TESTS OF CONCRETE IN FOUNDATION SLAB Krzysztof SCHABOWICZ 1, Jerzy HOLA 1, Dariusz STYS 1 1 Institute of Building Engineering, Wrocław University of Technology, Wybrzeże Wyspiańskiego