Contact stress sensor

Title: Contact stress sensor

A method for producing a contact stress sensor that includes one or more MEMS fabricated sensor elements, where each sensor element of includes a thin non-recessed portion, a recessed portion and a pressure sensitive element adjacent to the recessed portion. An electric circuit is connected to the pressure sensitive element. The circuit includes a pressure signal circuit element configured to provide a signal upon movement of the pressure sensitive element.

Inventors:: Kotovsky, Jack

Issue Date:: 2014-02-11

OSTI Identifier:: 1124617

Assignee:: Lawrence Livermore National Security, LLC (Livermore, CA) LLNL

Patent Number(s):: 8,646,335

Application Number:: 13/349,492

Contract Number:: AC52-07NA27344

Research Org:: LLNL (Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States))

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 47 OTHER INSTRUMENTATION

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Works referenced in this record:

Flexible miniature ribbon cables for long-term connection to implantable sensors
journal, April 1990

Hetke, J. F.; Najafi, K.; Wise, K. D.
Sensors and Actuators A: Physical, Vol. 23, Issue 1-3, p. 999-1002
DOI: 10.1016/0924-4247(90)87076-U

Review Article Tactile sensing for mechatronics—a state of the art survey
journal, February 1999

Lee, M. H.; Nicholls, H. R.
Mechatronics, Vol. 9, Issue 1, p. 1-31
DOI: 10.1016/S0957-4158(98)00045-2

New tactile sensor chip with silicone rubber cover
journal, September 2000

Leineweber, Michael; Pelz, Georg; Schmidt, Michael
Sensors and Actuators A: Physical, Vol. 84, Issue 3, p. 236-245
DOI: 10.1016/S0924-4247(00)00310-1

A miniature piezoelectric polymer transducer for in vitro measurement of the dynamic contact stress distribution
journal, June 1992

Manouel, Mehran; Pearlman, Hubert S.; Belakhlef, Abdelfatihe
Journal of Biomechanics, Vol. 25, Issue 6, p. 627-635
DOI: 10.1016/0021-9290(92)90104-9

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