Method and system for using a sensor element for identifying an object

• US 7,954,385 B2
• Filed: 11/20/2009
• Issued: 06/07/2011
• Est. Priority Date: 07/01/1999
• Status: Expired due to Term

• Current Assignee: Emfitech Oy
• Original Assignee: Emfitech Oy
• Inventors: Raisanen, Heikki
• Primary Examiner(s): Noori; Max
• Application Number:
  US12/622,721
• Publication Number:
  US 20100107780A1
• Time in Patent Office: 564 Days
• Field of Search: 73760-860, 738/626.26
• US Class Current: 73/780
• CPC Class Codes: G01L 1/14 by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
• CPC Class Codes: G01L 1/146 for measuring force distributions, e.g. using force arrays G01L1/148 takes precedence
• CPC Class Codes: G01L 1/20 by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids of piezo-resistive materials G01L1/18; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
• CPC Class Codes: Y10T 29/49002 Electrical device making
• CPC Class Codes: Y10T 29/49007 Indicating transducer
• CPC Class Codes: Y10T 29/49078 Laminated
• CPC Class Codes: Y10T 29/49128 Assembling formed circuit to base
• CPC Class Codes: Y10T 29/49155 Manufacturing circuit on or in base
• CPC Class Codes: Y10T 29/49798 Dividing sequentially from leading end, e.g., by cutting or breaking

Abstract

A sensor element material web for selectively cutting an operable sensor from the web includes a sensor film. A first electrode film is disposed on a first side and includes metallic electrodes in a first repeating pattern. A second electrode film is disposed on a second side and includes a plurality of second metallic electrodes in a second repeating pattern. A dielectric film is disposed on the first or the second electrode films. The first and the second repeating patterns permit the sensor to be cut.

Claims

1. A sensor element material web for selectively cutting an operable sensor from the web, the sensor element material web comprising:

a sensor film having a first and a second side;

a first electrode film disposed on the first side, the first electrode film comprising a plurality of first metallic electrodes in a first repeating pattern;

a second electrode film disposed on the second side, the second electrode film comprising a plurality of second metallic electrodes in a second repeating pattern;

a dielectric film disposed on the first or the second electrode films;

wherein the first and the second repeating patterns permit the sensor to be cut.

2. The sensor element material web of claim 1, wherein the first and second repeating patterns overlap.

3. The sensor element material web of claim 1, wherein the first and second repeating patterns are selected to permit variable width or length sensors to be cut.

4. The sensor element material web of claim 1, wherein a first plurality of connecting areas are disposed between each of the plurality of first metallic electrodes.

5. The sensor element material web of claim 4, wherein a second plurality of connecting areas are disposed between each of the plurality of second metallic electrodes.

6. The sensor element material web of claim 4, wherein the connecting area comprises silver paste.

7. A sensor cut from a sensor element material web, the sensor comprising:

the sensor element material web comprising

a sensor film having a first and a second side;

a first electrode film disposed on the first side, the first electrode film comprising a plurality of first metallic electrodes in a first repeating pattern;

a second electrode film disposed on the second side, the second electrode film comprising a plurality of second metallic electrodes in a second repeating pattern;

a dielectric film disposed on the first or the second electrode films; and

at least one of the first or second metallic electrodes cut from the first and the second repeating patterns.

8. The sensor of claim 7, wherein one of the repeating pattern comprises an antenna pattern.

9. The sensor of claim 7, further comprising a lug extending laterally from one of the first metallic electrodes.

10. The sensor of claim 7, further comprising a plurality of checks for cutting the sensor to be a floor sensor.

11. The sensor of claim 7, further comprising a transmitter-receiver apparatus for determining a force intensity.

12. The sensor of claim 7, further comprising a length suitable for determination of position data due to a length of signal travel.

13. The sensor of claim 7, further comprising a control apparatus for controlling a data flow from the sensor.