Yoseph Bar-Cohen
Encyclopedia
Yoseph Bar-Cohen is a physicist
Physicist
A physicist is a scientist who studies or practices physics. Physicists study a wide range of physical phenomena in many branches of physics spanning all length scales: from sub-atomic particles of which all ordinary matter is made to the behavior of the material Universe as a whole...

 at the Jet Propulsion Laboratory
Jet Propulsion Laboratory
Jet Propulsion Laboratory is a federally funded research and development center and NASA field center located in the San Gabriel Valley area of Los Angeles County, California, United States. The facility is headquartered in the city of Pasadena on the border of La Cañada Flintridge and Pasadena...

 who specializes in electroactive materials
Electroactive polymers
Electroactive Polymers, or EAPs, are polymers that exhibit a change in size or shape when stimulated by an electric field. The most common applications of this type of material are in actuators and sensors. A typical characteristic property of an EAP is that they will undergo a large amount of...

 and ultrasonic nondestructive evaluation (NDE), and is responsible for the Nondestructive Evaluation and Advance Actuators (NDEAA) lab at JPL. Dr. Bar-Cohen is a fellow of the International Society for Optical Engineering
The International Society for Optical Engineering
SPIE, an international society for optics, photonics, and imaging engineering, advances an interdisciplinary approach to the science and application of light....

 (SPIE) and the American Society for Nondestructive Testing
American Society for Nondestructive Testing
The American Society for Nondestructive Testing, Inc. or ASNT is a technical society for nondestructive testing professionals. ASNT evolved from The American Industrial Radium and X-Ray Society which was founded in 1941. Its headquarters is located in Columbus, OH, and there are 70 local sections...

 (ASNT).

Bar-Cohen received a M.Sc. in Materials Science in 1973 and a Ph.D. in Physics in 1979, both from the Hebrew University in Jerusalem.

Bar-Cohen started SPIE's Electroactive Polymer Actuators and Devices (EAPAD) conference, which he has chaired six times, as well as proposing the Armwrestling Match of EAP Robotic Arm Against Human
Armwrestling Match of EAP Robotic Arm Against Human
The Armwrestling Match of EAP Robotic Arm Against Human is a challenge posed by Yoseph Bar-Cohen of the JPL in 1999. The initial challenge is to create a simple human-like robotic arm which, using electroactive polymers as artificial muscles, can beat a human opponent in an arm wrestling match...

.

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