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The JPL's Nondestructive Evaluation and Advanced Actuators (NDEAA) Technologies lab is involved with innovative research and development (R&D) for space applications and technology transfer to other fields. It was established by Dr. Yoseph Bar-Cohen in May 1991 and it is part of his JPL's Advanced Technologies Group for which he is the Supervisor. Dr. Bar-Cohen and his Group members are internationally leading scientists in the field of electroactive materials and related mechanisms. The members of his Group are Dr. Mircea Badescu, Dr. Xiaoqi Bao, Dr. Zensheu Chang, Dr. Shyh-Shiuh Lih, Dr. Hyeong Jae Lee, Derek Lewis, and Dr. Stewart Sherrit. In addition, thru the JPL Educational Outreach Program professors, visiting scientists and students are participating in various studies at this lab. A homepage of the NDEAA Lab is part of the JPL's Science and Technology Website. The topics of R&D include novel actuators (mostly using electroactive ceramics and polymers), drilling and sampling systems, transducers, sensors, robotic mechanisms and NDE methods. The group conducts analytical modeling, development, design and fabrication of novel mechanisms and devices, performance testing and characterization as well as analysis that involve mechanical, electrical, magnetic and thermal parameters and interactions. Between Jan. 1, 2000 and Jul. 2, 2001, this NDEAA webhub had 1,000,007 (crossed the one million) total hits with 87,082 unique hits and by Sept. 3, 2001 it crossed the one hundred thousand (100,006) unique hits. The highest hits per day was recorded on March 9, 2005, where 9063 total hits and 3626 unique hits were recorded. This lab has been the subject of many articles in the news media. The NDEAA lab is involved with a broad range of R&D topics as described in the following clickable icons. The photos of the NDEAA members are clickable to their biography

Piezopump
USM
FMPUL
MEMICA
NDE
MACS
NGPS
biomimetic-robots
JPL-EAP Activity
WW-EAP
USDC

Mirea

Bao

Zensheu

Lih

Derek

Lih

Dr. Y. Bar-Cohen,
Supervisor, Advanced Tech. Group & Senior Research Scientist
Dr. Mircea Badescu
Dr. Xiaoqi Bao
Dr. Zensheu Chang
Dr. Hyeong Jae Lee
Derek Lewis
Dr. Shyh-Shiuh Lih
Dr. Stewart Sherrit

The mechanisms that were developed at the NDEAA Lab are driven by elastic waves, mechanical vibrations and/or electroactive materials. Examples of these mechanisms include the ultrasonic/sonic driller/corer (USDC) that uses low preload and is developed for planetary sampling, deep drilling, high-temperature drilling, probing, sensing and in situ analysis making it a Lab-on-a-Drill. Also, they developed ultrasonic and surface acoustic wave motors and piezoelectric pumps that are driven by traveling flexural waves, This lab made major contributions to the field of electroactive polymers for use as actuators (artificial muscles) and, thru various forums, is mentoring the activity worldwide. Other technologies that are being explored include Haptic interfaces, high power ultrasound for medical treatment, ferroelectric source that generates various radiations and charged particles, wireless high power transmission, biomimetic technologies and geophysical probing using elastic waves. In addition to planetary applications, the developed devices and mechanisms have potential terrestrial applications for medical, commercial, construction and others. These efforts involve technical cooperation with scientists and engineers at various universities, research institutes, medical centers and industry in the USA and internationally. Further, the Nov. 2001 issue of the NASA Tech Briefs covered Dr. Bar-Cohen and NDEAA in a "Who's Who in NASA" article.
Research & Development Tasks
Biomimetics: Biologically-Inspired Technologies
Advanced Actuators:
Electroactive Polymers (EAP) [artificial muscles, WW-EAP website, Bendbot, LoMMAs, etc.]
MEMICA (Haptic interfaces, telesurgery, Cyberglove, etc.)
Ultrasonic Actuators and Motors (USM, Piezo, etc.)
Piezopump [miniature piezoelectric pump]
Ultrasonic/Sonic Driller and Corer (USDC) -- Winner of the 2000 R&D Magazine Award for one of the 100 most innovative instruments
Nondestructive Evaluation (NDE) [LLW, Intelligent NDE, etc.]
Noninvasive Medical Diagnostics and Treatment [Blood Clots, Cancer, FMPUL, etc.]
Noninvasive Geophysical Probing System (NGPS)
Robotic devices [MACS crawler, etc.]
Download Acrobat Reader News clipping covering the JPL's NDEAA activity

NDEAA Archive Directions to JPL
Books and Proceedings edited by Dr. Bar-Cohen
Newsletters issued by Dr. Bar-Cohen
Applications of piezoelectric materials in space mechanisms (Access is limited to JPL and NASA only)
Databases, webhubs and websites that list properties
Education Outreach - Collaboration with Universities

NASA Working Groups
NASA M&P Working Group (NMPWG)
Non-Government Standards M&P Organizations
NASA Telerobotic Intercenter Working Group (TRIWG)
NASA Space Mechanisms Project

rover photo

Technical Societies Activity
GlobalNDT Internet Superhub (GNIS)
SPIE Smart Structures and Materials/NDE Symposia
6th SPIE Symposium on Smart structures and materials, Newport Beach, CA, March 1-5, 1999<
1st SPIE Conference - Electroactive Polymer Actuators and Devices(EAPAD) (3669)
Process Control and Sensors for Manufacturing (3589)
7th SPIE Symposium on Smart structures and materials, Newport Beach, CA, March 5-9, 2000<
2nd SPIE Conference - Electroactive Polymer Actuators and Devices(EAPAD) (3987)
NDE of Aging Aircraft, Airports, and Aerospace Hardware (3994) Coverpage Scientific American
8th SPIE Symposium on Smart structures and materials, Newport Beach, CA, March 4-8, 2001
3rd SPIE Conference - Electroactive Polymer Actuators and Devices(EAPAD) (4329)
Advanced NDE and Structural Health Monitoring (4335)
9th SPIE Symposium on Smart structures and materials, San Diego, CA, March 18-21, 2002
4th SPIE Conference - Electroactive Polymer Actuators and Devices(EAPAD) (4695)
Smart NDE and Health Monitoring of Structural and Biological Systems (4702)
10th SPIE Symposium on Smart Structures and Materials, San Diego, CA, March 3-6, 2003
5th SPIE Conference - Electroactive Polymer Actuators and Devices(EAPAD) (5051)
Smart NDE and Health Monitoring of Structural and Biological Systems (5047)
Nondestructive Detection and Measurement for Homeland Security (5048)
11th SPIE Symposium on Smart Structures and Materials, San Diego, CA, March 14-18, 2004
6th SPIE Conference - Electroactive Polymer Actuators and Devices(EAPAD) (5385)
Health Monitoring and Smart NDE of Structural and Biological Systems (5394)
Nondestructive Detection and Measurement for Homeland Security (5395)
12th SPIE Symposium on Smart Structures and Materials, San Diego, CA, March 6-10, 2005
7th SPIE Conference - Electroactive Polymer Actuators and Devices(EAPAD)
Health Monitoring and Smart NDE of Structural and Biological Systems
Nondestructive Detection and Measurement for Homeland Security
13th SPIE Symposium on Smart Structures and Materials, San Diego, CA, 26 February-2 March 2006
8th SPIE Conference - Electroactive Polymer Actuators and Devices(EAPAD)
Health Monitoring and Smart Nondestructive Evaluation of Structural and Biological Systems V
Non-Intrusive Inspection, Structures Monitoring and Smart Systems For Homeland Security
14th SPIE Symposium on Smart Structures and Materials, San Diego, CA, March 18-22, 2007
9th SPIE Conference - Electroactive Polymer Actuators and Devices(EAPAD)
From the 15th SPIE SSM Symposium and afterward
10th SPIE Conference - Electroactive Polymer Actuators and Devices(EAPAD), 10 - 13 March 2008
11th SPIE Conference - Electroactive Polymer Actuators and Devices(EAPAD), 9 - 12 March 2009
12th SPIE Conference - Electroactive Polymer Actuators and Devices(EAPAD), 8 - 11 March 2010
13th SPIE Conference - Electroactive Polymer Actuators and Devices(EAPAD), 6 - 10 March 2011
14th SPIE Conference - Electroactive Polymer Actuators and Devices(EAPAD), 11 - 15 March 2012
15th SPIE Conference - Electroactive Polymer Actuators and Devices(EAPAD), 10 - 14 March 2013
16th SPIE Conference - Electroactive Polymer Actuators and Devices(EAPAD), 9 - 13 March 2014
17th SPIE Conference - Electroactive Polymer Actuators and Devices(EAPAD), 8 - 12 March 2015
28 October - 1 November 2002 Symposium, Brugge, Belgium
Conference on Transducing Materials and Devices
Materials Research Society (MRS) Meeting - Boston, MA
Symposium FF on EAP - Nov. 29 - Dec. 3, 1999
Symposium EE on EAP Nov. 26-30, 2001 - Call for Papers
Symposium W on "Electro Responsive Polymers and Their Applications," Nov. 28 to Dec. 2, 2005.
Symposium C on "Smart Dielectric Polymer Properties, Characterization and Their Devices," Nov. 27 to Dec. 1, 2006.
American Society for Nondestructive Testing (ASNT)
ASNT Ultrasonic Committees
ASNT Technology Transfer Committee
8th NDE Research Symposium/ASNT Spring Conf., Orlando, FL, March 22-25, 1999


Description of the NDEAA Labs
JPL's NDE Lab
JPL's Advanced Actuators Lab

NDEAA - ISO notebook (JPL internal document)

For more information you can contact:
Dr. Yoseph Bar-Cohen, Jet Propulsion Laboratory (JPL), MS 67-119,
4800 Oak Grove Drive, Pasadena, CA 91109-8099
Phone: 818-354-2610, e-mail: yosi@jpl.nasa.gov

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FIRST GOV   NASA Home Page Webmaster: Dr. Yoseph Bar-Cohen
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