SIGNAL STABILIZATION IN A NON-RESISTIVE CONTACT SENSOR ASSEMBLY

• US 20140062505A1
• Filed: 03/18/2013
• Published: 03/06/2014
• Est. Priority Date: 08/31/2012
• Status: Active Grant

• Current Assignee: Rescon Ltd.
• Original Assignee: Rescon Ltd.
• Inventors: DAWSON, Thomas Andrew
• Granted Patent: US 9,234,924 B2
• Time in Patent Office: Days
• US Class Current: 324/658
• CPC Class Codes: A61B 2562/0214 Capacitive electrodes
• CPC Class Codes: A61B 5/24 Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
• CPC Class Codes: A61B 5/25 Bioelectric electrodes therefor
• CPC Class Codes: A61B 5/274 using snap or button fasteners
• CPC Class Codes: A61B 5/282 Holders for multiple electrodes for introduction into the body A61B5/287
• CPC Class Codes: A61B 5/6803 Head-worn items, e.g. helmets, masks, headphones or goggles
• CPC Class Codes: A61B 5/6804 Garments; Clothes
• CPC Class Codes: A61B 5/6893 Cars
• CPC Class Codes: A61B 5/6894 Wheel chairs
• CPC Class Codes: G01R 27/2605 Measuring capacitance capacitive sensors G01D5/24
• CPC Class Codes: G01R 29/12 Measuring electrostatic fields or voltage-potential

Abstract

A non-resistive contact sensor assembly includes an electric field sensor device, a cover, and a biasing structure. The electric field sensor devices has a dry electrode component for receiving an electrical signal from an object of interest by capacitively coupling with the entity. The signal processing component is surrounded or embedded in the cover. The biasing structure is disposed on the outside of the cover and is adapted to press the dry electrode component against a surface of the object interest when biased by an external structure.

Claims

1. A non-resistive contact sensor assembly, comprising:

(a) an electric field sensor device, including a dry electrode component for receiving an electrical signal from an object of interest by capacitively coupling with the entity;

(b) a cover in which the signal processing component is surrounded or embedded; and

(c) a biasing structure, disposed on the outside of the cover, that are adapted to press the dry electrode component against a surface of the object interest when biased by an external structure.

2. The non-resistive contact sensor assembly of claim 1, wherein the biasing structure is a spring.

3. The non-resistive contact sensor assembly of claim 2, wherein the spring is a mechanical spring with a polymeric, metallic, and/or fiber material construction.

4. The non-resistive contact sensor assembly of claim 1, wherein the biasing structure is comprised of compressive material.

5. The non-resistive contact sensor assembly of claim 4, wherein the compressive material is selected from a group comprising rubber, felt, elastomeric, polymeric, closed cell foam and analogues.

6. The non-resistive contact sensor assembly of claim 1, arranged in a helmet that comprises the external structure.

7. The non-resistive contact sensor assembly of claim 1, arranged beneath a belt that comprises the external structure.

8. The non-resistive contact sensor assembly of claim 1, arranged beneath jewelry that comprises the external structure.

9. The non-resistive contact sensor assembly of claim 1, arranged beneath an article of clothing that comprises the external structure.

10. The non-resistive contact sensor assembly of claim 1, arranged in a piece of furniture that comprises the external structure.

11. The non-resistive contact sensor assembly of claim 1, arranged in a vehicle seat that comprises the external structure.

12. The non-resistive contact sensor assembly of claim 11, arranged in an automobile seat.

13. The non-resistive contact sensor assembly of claim 11, arranged in an airplane seat.

14. The non-resistive contact sensor assembly of claim 11, arranged in a rail locomotive seat.

15. The non-resistive contact sensor assembly of claim 11, arranged in a wheelchair seat.

16. The non-resistive contact sensor assembly of claim 1, wherein the assembly is in the form of a sensor head.