Two-dimensional pressure sensor using retro-reflective tape and

Details Two-dimensional pressure sensor using retro-reflective tape and Two-dimensional pressure sensor using retro-reflective tape and

1983-09-14

1985-10-15

Corbin, John K.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250227, 73705, 350 9625, G01D 534, G01B 1114

Patent

active

045476683

ABSTRACT:
This invention is a two-dimensional pressure sensor which can be used to determine a pressure distribution across a two-dimensional object which comes in contact with the sensor. The sensor includes a light source, a matrix of light transmitting fiber endings which includes an alternate pattern of transmitting and receiving light fibers, a transmitting fiber sub-array located a distance from the matrix and composed of transmitting fibers, a receiving fiber sub-array located a distance from the matrix and composed of receiving fibers, a semi-transparent deformable medium located above the matrix, a retro-reflective material located on top of the deformable medium, a flexible membrane located adjacent said retro-reflective material and positioned to contact an object, and apparatus such as a photodetector array, for detecting light which is reflected by the retro-reflective material and transmitted to the receiving fiber sub-array.

REFERENCES:
patent: 3327584 (1967-06-01), Kissinger
patent: 3987668 (1976-10-01), Popenoe
patent: 4078432 (1978-03-01), Stewart
patent: 4158310 (1979-06-01), Ho
patent: 4210029 (1980-07-01), Porter
patent: 4269069 (1981-05-01), Handtmann et al.
patent: 4322163 (1982-03-01), Schiller
patent: 4322978 (1982-04-01), Fromm
patent: 4322979 (1982-04-01), Fromm
patent: 4354389 (1982-10-01), Baillie
patent: 4358960 (1982-11-01), Porter

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