Composite material for a sensor for measuring shear forces

Measuring and testing – Specimen stress or strain – or testing by stress or strain... – Specified electrical sensor or system

Reexamination Certificate

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Reexamination Certificate

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06915701

ABSTRACT:
The present invention is related to a composite sheet material, a method of producing this material, and the application of this material as a sensor for monitoring and measuring shear forces (or lateral translation). In one embodiment, the present invention includes a composite sheet material having an upper and a lower surface comprising an elastomeric matrix, which is essentially non-conductive, and discrete electrically conductive elements within the matrix wherein the electrically conductive elements in a region of the composite sheet material are arranged into columns, and the orientation of these columns are in an essentially organized, non-random pattern with a majority of these columns oriented at angles less than about 90° and greater than about 15° to the lower surface of the composite sheet material. In another embodiment, the present invention provides for a method of forming the sensors.

REFERENCES:
patent: 3631881 (1972-01-01), Bowditch
patent: 4400642 (1983-08-01), Kiraly
patent: 4631355 (1986-12-01), Federico et al.
patent: 4644101 (1987-02-01), Jin et al.
patent: 4778635 (1988-10-01), Hechtman et al.
patent: 4820376 (1989-04-01), Lambert et al.
patent: 4838347 (1989-06-01), Dentini et al.
patent: 4923739 (1990-05-01), Jin et al.
patent: 4939038 (1990-07-01), Inabata
patent: 4960612 (1990-10-01), Dentini et al.
patent: 4963408 (1990-10-01), Huegli
patent: 5045249 (1991-09-01), Jin et al.
patent: 5304460 (1994-04-01), Fulton et al.
patent: 5313840 (1994-05-01), Chen et al.
patent: 5408873 (1995-04-01), Schmidt et al.
patent: 5470632 (1995-11-01), Meldner et al.
patent: 5478421 (1995-12-01), Medney et al.
patent: 5496613 (1996-03-01), Middelman et al.
patent: 5619186 (1997-04-01), Schmidt et al.
patent: 5635272 (1997-06-01), Bogetti et al.
patent: 5773121 (1998-06-01), Meteer et al.
patent: 5838244 (1998-11-01), Schmidt et al.
patent: 6011307 (2000-01-01), Jiang et al.
patent: 6030351 (2000-02-01), Schmidt et al.
Daisuke Yamada et al. Design of Artificial Finger Skin Having Ridges and Distributed Tactile Sensors, Proceedings of the 32nd ISR, Apr. 19-21, 2001, pp. 1243-1248.
Daisuke Yamada et al. Artificial Finger Skin Having Ridges and Distributed Tactile Sensors used for Grasp Force Control, Proceedings of the IROS 2001.
Daisuke Yamada et al. Artificial Finger Skin Having Ridges and Distributed Tactile Sensors used for Grasp Force Journal of Robotics and Mechatronics, vol. 14, No. 2, 2002.4, pp. 140-146.
Stephen A. Mascaro et al. Measurement of Finger Posture and Three-Axis Fingertip Touch Force Using Fingernail Sensors, Submitted to IEEE Transactions on Robotics and Automation, 2002.
Takashi Maeno et al. Analysis and Design of a Tactile Sensor Detecting Strain Distribution Inside an Elastic Finger, Jhttp://www.maeno.mech.keio.ac.jp/English/maeno—IROS98.pdf.
Stephen A. Mascaro et al. Finger Posture and Shear Force Measurement using Fingernail Sensors: Initial Experimentation, Proceedings of the IEEE International Conference on Robotics and Automation, vol. 2, pp. 1857-1862, 2001.
Robert D. Howe et al. Dynamic Tactile Sensing: Perception of Fine Surface Features with Stress Rate Sensing, IEEE Transactions on Robotics and Automation, vol. 9, No. 2, Apr. 1994.
W. B. Carlson et al. Flexi-Distortional Piezoelectric Sensor Results, http://design.alfred.edu/Piezoensegrity/Plate Distort Sensors3.html, Mar. 2003.
D. J. Beebe et al. A Silicon Force Sensor for Robotics and Medicine, Sensors and Acutators A: Physical, vol. 50, Issues 1-2, Aug. 1995, pp. 55-65.
J.L. Novak. Initial Design and Analysis of a Capacitive Sensor for Shear and Normal Force Measurement, IEEE, 1989, pp. 137-144.

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