Dr. Yoseph Bar-Cohen is a physicist with over 25 years experience in
NDE, sensors and electroactive materials. He is a Technical Staff and
the NDE/Advanced Actuators Principal Investigator at the Science and
Technology Development Section of the Jet Propulsion Laboratory,
Pasadena, CA. Since joining JPL in 1991, he has established
state-of-the-art Nondestructive Evaluation (NDE) and Advanced
Actuators Characterization Labs. Currently, he is developing ultrasonic methods of measuring the elastic properties of composites, electroactive polymers for muscle actuators, space-worthy high-torque piezoelectric motors, and is involved in NASA efforts to form NASA wide Materials and Process Standards.
Dr. Bar-Cohen received his Ph. D. in Physics (1979) and M.Sc. in Materials Science (1973), both from the Hebrew University at Jerusalem in Israel. Prior to JPL, he has been a principal investigator at Israel Aircraft Industry, Air Force Materials Laboratory (with Systems Research Lab) and McDonnell Douglas Corporation.
Dr. Bar-Cohen is a recognized leader in NDE and has been a pioneer in developing the leaky Lamb waves and the polar backscattering techniques for composite materials and developed unique in-process composite cure monitoring. He is the author of more than 100 publications made numerous presentation at national and international symposia and holds many patents.
Dr. Bar-Cohen is the Editor of the NASA NDE Working Group (NNWG) Newsletter and in 95/96 he was the Chair of NNWG. He is an Adjunct Professor at the Department of the Mechanical and Aerospace Engineering, the University of California, Los Angeles (UCLA) and an Advisor for the NRC Research Associateship Program. He is also a Fellow of ASNT.
E-mail: yosi@jpl.nasa.gov
Home Page:
NASA NDE Working Group
Robert A. Day.1974 - 1984 : Headed NDE Labortory for the GE Fst Breeder Reactor Department. Worked on reactor related NDT applications. Received three patents on transducer manufacturing techniques. Winner of the 1981 Engineering Award for Technical Achievement in Materials, Manufacturing, and Quality Engineering from the Power Systems Sector of General Electric Co.
1984 - Present : Engineer at Lawrence Livermore National Laboratory. Developed ultrasonic inspection techniques for the proposed US geological reactor spent fuel repository at Yucca Mountain. Developed a 1 GHz acoustic microscope for use on integrated circuit applications. Invented new acoustic emission transducer which could withstand the intense light pulse associated with Nova laser (biggest laser in the world) to help diagnose lens cracking problem.
Second Sound: Consultancy providing expertise to major and minor organizations on ultrasonics, NDE robotics, and fixturing design service. Clients include GE and HP.
Robert A. Day is a registered Professional Engineer in California (QU - 1129).
E-mail: rockyd@netcom.netcom.com
Home Page:
Second Sound
Gerard Fleury,born 1954, graduate in general and solid state physics and metallurgy from INSTITUT NATIONAL DES SCIENCES APPLIQUEES 1978.
From 1980 until 1984, he worked as research engineer at the UNIVERSITY OF TOURS with CNES and MATRA for the Echography experiment on SALYUT 7 (1982 and 1984) and DISCOVERY (1985).
From 1984 until 1988, he co-founded and managed VERMON SA.
Since 1989, managing director of IMASONIC SA he currently works on new applications of piezocomposite transducers. His experience in transducers includes numerous NDT/NDE applications where piezocomposite technology is used to improve inspections and reach new targets on technical or functionality aspects".
E-mail: imasonic@imasonic.com
Home Page:
IMASONIC
Willem (Bill) A. Grandia, P.E., is an experienced electronic and quality engineer,
born in 1933, and educated in The Netherlands. He began his career in 1955 at Rontgen Technische Dienst in Rotterdam, where he was in charge of R&D. After moving to the USA, he continued to design instrumentation and novel circuitries for Magnaflux Corporation, Budd Company, and others.
In 1981, Bill founded his own company, QMI Inc., Costa Mesa, California, where he currently serves as its president and director of R&D. Bill has authored and co-authored numerous scientific articles, and holds several patents.
E-mail: wgrandia@aol.com
Home Page:
QMI Inc.
Dipl.-Ing. Werner Rathgeb,born 1948, studied Material Sience at the University of Berlin.
From 1976 until today be worked in several departments of SIEMENS/KWU.
Since 1996 he has been in charge of the department for probe development at SIEMENS/KWU in Erlangen, Germany.
E-mail: Rathgeb@erls19.kwu.siemens.de
UTonline Exhibition
Dr. Gerhard Splitt ,born 1943, studied physics at the University of Hamburg and received there his PhD on solid state physics in 1975. From 1969 until 1975 he worked as a scientist at the Institute of Applied Physics of the University of Hamburg. Since 1976 he is in charge of the department for probe development at Krautkramer GmbH in Huerth, Germany.
E-mail: Gsplitt@krautkramer.de
UTonline Exhibition
Klaus Matthies,We are grateful for Mr. Klaus Matthies spontaneous confirmation for joining the panel of experts.
He is the substitute for Mr. Zanelli, who had still problems in doing Internet communications. :-(
Mr. Matthies works in the Ultrasonic laboratory at the BAM Berlin. He is an expert in transducer design especially for hot applications. His and co-author's paper "High Temperature Ultrasonic Transducers" is a result of a recently closed EU research project.
E-mail: 6320vijayend@axp1.rz.bam-berlin.de
Home Page:
BAM Berlin - NDT Department 8