Tactile sensor employing a light conducting element and a resili

Details Tactile sensor employing a light conducting element and a resili Tactile sensor employing a light conducting element and a resili

1984-12-12

1987-05-26

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

340407, 901 33, H01J 516

Patent

active

046688617

ABSTRACT:
A tactile sensing device for use in robotics and medical prosthetics includes a transparent sheet-like element and a second resilient sheet-like element positioned adjacent the first transparent element. A light detection and imaging means is positioned to observe the interface between the two elements. A light source is provided to illuminate the interior of one of the two elements. Any object pressing against the resilient element deforms the same into contact with the transparent element. Areas of contact caused by the pressing object produce a lighted area that can be detected by the light detecting means. The output from the light detecting means may be processed by a computer and an image of the contact area produced by the pressing object can be displayed on a monitor or processed to operate an electro-mechanical control.

REFERENCES:
patent: 3624619 (1971-11-01), Ambrosio
patent: 4484179 (1984-11-01), Kasday
J. D. Chodera and M. Lord, "Retraining of Standing Balance Using a Pedobarograph," Proceedings of the Sixth International Symposium on External Control of Human Extremities Aug. 28-Sep. 1, 1978, Dubrovnik, pp. 333-341.
"Automated Tactile Sensing"--L. D. Harmon International Journal of Robotics Research, vol. 1, No. 2, 1982 pp. 3-31.
"Micron Eye" Operator's Manual Micron Technology, Inc., Boise, ID. pp. 1--1 to 1-3.

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