Large area sensing cell

A large area sensing cell comprising:

• a first planar electrode configured as a spiral-form conductive portion with a first end near a predetermined central point and a second end distal from said central point, and having an outermost conductive circumscribing segment;
• a second planar electrode configured as a spiral-form conductive portion with a third end near a predetermined central point and a fourth end distal from said central point, said first planar electrode confronting said second planar electrode;
• a pressure sensitive resistive material interposed between said first planar electrode and said second planar electrode;
• and
• said conductive portion of said first planar electrode being substantially coextensive with said conductive portion of said second planar electrode, such that application of a broad force applying means anywhere within a boundary defined by said outermost conductive circumscribing segment is electrically discernible;
• and
• a conductive lead extending from each electrode for providing an electrical termination for said electrode.

A large area sensing cell comprising:

• a first conductor having a perimetric configuration with a plurality of internal conductor portions extending therefrom and circumscribed thereby;
• a second conductor having a perimetric configuration with a plurality of internal conductor portions extending therefrom and circumscribed thereby, said second conductor and internal conductor portions confronting said first conductor and internal conductor portions;
• a pressure sensitive resistive material interposed between said first conductor and said second conductor, such that application of force within the perimetric configuration of said first conductor is electrically discernible;
• and
• a conductive lead extending from each of said first and second conductors for providing an electrical termination for each of said conductors.

A large area sensing cell comprising:

• a first conductor arranged as a group of spaced, elongated conductive portions, each conductive portion electrically connected to adjacent conductive portions through at least one conductive path, with exterior conductive portions and conductive portion end-points defining a first conductor perimeter;
• a second conductor arranged as a group of spaced, elongated, conductive portions, each conductive portion electrically connected to adjacent conductive portions through at least one conductive path, with exterior conductive portions and conductive portion end-points defining a second conductor perimeter, and said second conductor confronting said first conductor;
• a pressure sensitive resistive material interposed between said first conductor and said second conductor, such that application of force within said first conductor perimeter or said second conductor perimeter is electrically discernible;
• and
• a conductive lead extending from each of said first conductor and said second conductor for providing an electrical termination for each of said conductors.

A large area sensor cell comprising:

• a first conductor having a first conductive portion and a plurality of spaced, elongated conductive segments, each having first and second ends and being electrically connected to said first conductive portion at said first ends only, with said second ends and said first conductive portion defining a first conductor perimeter;
• a second conductor having a second conductive portion and a plurality of spaced, elongated conductive segments, each having third and fourth ends and being electrically connected to said second conductive portion at said third ends only, with said fourth ends and said second conductive portion defining a second conductor perimeter, said second conductor confronting said first conductor;
• a pressure sensitive resistive material interposed between said first conductor and said second conductor, such that application of force within said first conductor perimeter or said second conductor perimeter is electrically discernible;
• and
• a conductive lead extending from each of said first conductor and said second conductor for providing an electrical termination for each of said conductors.