Prepressured force/pressure sensor and method for the fabricatio

Details Prepressured force/pressure sensor and method for the fabricatio Prepressured force/pressure sensor and method for the fabricatio

1998-06-22

2000-03-07

Felber, Joseph L.

Measuring and testing

Dynamometers

Responsive to force

73862474, G01L 104

Patent

active

060325429

ABSTRACT:
A pressure sensitive element or array is provided which includes at least one first conductor on a first substrate and at least one second conductor on a second substrate, with a first conductor and a second conductor intersecting adjacent to each other at a sensor point and a pressure sensitive material being between the first and second conductors at each such sensor point. A mechanism is also provided which applies a predetermined prepressure to the substrates at least at selected ones of the sensor points. The prepressure for a preferred embodiment is provided by joining the substrates with an air-tight seal around a periphery of at least the pressure point to which prepressure is to be applied and by creating a reduced pressure area between the substrates within the sealed periphery. For preferred embodiments, the reduced pressure is a substantial vacuum, causing substantially atmospheric pressure to be applied to the sensor points.

REFERENCES:
patent: 5033291 (1991-07-01), Podoloff et al.

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