# US 2014/0152319 A1 · Reducing movement and electrostatic interference in a non-resistive contact sensor assembly

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- Number: US 2014/0152319 A1
- Document ID: US20140152319A1
- Status: Published application
- Kind: A1
- Application number: 13/846,263
- Filed: 2013-03-18
- Published: 2014-06-05
- Earliest claimed: 2012-07-13
- Assignees: Rescon Ltd
- Applicants: Rescon Ltd
- Inventors: Thomas Andrew DAWSON; Christian MACEDONIA
- Web page: https://patentgrep.com/patent/US20140152319A1

## CPC

- A61B 5/7207: {of noise induced by motion artifacts}
- A61B 5/6831: {Straps, bands or harnesses}
- G01R 27/2605: {Measuring capacitance (capacitive sensors G01D5/24)}
- G01R 29/12: Measuring electrostatic fields {or voltage-potential}
- A61B 2562/0214: Capacitive electrodes
- A61B 2562/182: Electrical shielding, e.g. using a Faraday cage
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)

## Abstract

A non-resistive contact sensor assembly, includes a non-resistive contact sensor device, a first inner region of material in which the sensor device is surrounded or embedded, a boundary region, around the first inner region, that is at least partly comprised of a conducting material and that picks up electrical charge from the first inner region, a second inner region around the boundary region, an outer region around the second inner region, and at least one diode, disposed in the second inner region and connected between the boundary region through the second inner region to the outer region.

## Claims

### Claim 1

A non-resistive contact sensor assembly, comprising:
(a) a non-resistive contact sensor device;
(b) a first inner region of material in which the sensor device is surrounded or embedded;
(c) a boundary region, around the first inner region, that is at least partly comprised of a conducting material and that picks up electrical charge from the first inner region;
(d) a second inner region around the boundary region;
(e) an outer region around the second inner region; and
(f) at least one diode, disposed in the second inner region and connected between the boundary region through the second inner region to the outer region.

### Claim 2 (depends on 1)

The non-resistive contact sensor assembly of claim 1, wherein at least one of the first inner region, the second inner region, and the outer region includes a triboelectrically neutral or relatively neutral material.

### Claim 3 (depends on 1)

The non-resistive contact sensor assembly of claim 1, wherein at least one of the first inner region, the second inner region, and the outer region includes an elastic material that acts to hold the sensor device in place, thereby minimizing the likelihood of sensor movement against the object surface and leading, in turn, to less chance of contact electrification and movement artifacts.

### Claim 4 (depends on 1)

The non-resistive contact sensor assembly of claim 1, wherein at least one of the first inner region, the second inner region, and the outer region includes a biasing structure that acts to hold the sensor device in place, thereby minimizing the likelihood of sensor movement against the object surface and leading, in turn, to less chance of contact electrification and movement artifacts.

### Claim 5 (depends on 4)

The non-resistive contact sensor assembly of claim 4, wherein the biasing structure includes a spring.

### Claim 6 (depends on 1)

The non-resistive contact sensor assembly of claim 1, wherein at least one of the first inner region, the second inner region, and the outer region includes material that is relatively triboelectrically matched to the surface of the object being measured, tested, or the like, thereby minimizing the chances that charge separation will occur when this region and the surface of the object may move together.

### Claim 7 (depends on 1)

The non-resistive contact sensor assembly of claim 1, wherein at least one of the first inner region, the second inner region, and the outer region includes material that is conductive, allowing for dissipation of any surface or external charge.

### Claim 8 (depends on 1)

The non-resistive contact sensor assembly of claim 1, further comprising a housing that is treated with an ionized liquid.

### Claim 9

A non-resistive contact sensor assembly, wherein the surface region of the entity where a sensor or sensors are housed may be separated from the rest of the surface of the entity using a conducting band, comprising:
(a) a non-resistive contact sensor device, including a dry electrode component;
(b) a first region of material; and
(c) a second region of material, wherein at least part of the material is a conducting material;
(d) wherein the first region is walled off from the rest of the surface of the entity by the second region.

### Claim 10 (depends on 9)

The non-resistive contact sensor assembly of claim 9, wherein the assembly is provided in a wearable form.

### Claim 11 (depends on 10)

The non-resistive contact sensor assembly of claim 10, wherein the assembly is provided in the form of a belt or wrap to be worn around a portion of a human body.

### Claim 12 (depends on 11)

The non-resistive contact sensor assembly of claim 11, wherein the assembly is provided in the form of a belt or wrap to be worn around the midsection of a human.

### Claim 13 (depends on 9)

The non-resistive contact sensor assembly of claim 9, further comprising a housing that is treated with an ionized liquid.

### Claim 14

A non-resistive contact sensor assembly, comprising:
(a) a non-resistive contact sensor device, including a dry electrode component; and
(b) an electrostatic shield layer disposed over the sensor device.

### Claim 15 (depends on 14)

The non-resistive contact sensor assembly of claim 14, wherein the electrostatic shield layer is a triboelectrically-neutral material.

### Claim 16 (depends on 14)

The non-resistive contact sensor assembly of claim 14, wherein the electrostatic shield layer is a electrostatically-shielding material.

### Claim 17 (depends on 14)

The non-resistive contact sensor assembly of claim 14, wherein the electrostatic shield layer extends out from the sensor on the surface of the entity being measured or tested.

### Claim 18 (depends on 14)

The non-resistive contact sensor assembly of claim 14, further comprising a conducting layer disposed over the electrostatic shield layer.

### Claim 19 (depends on 18)

The non-resistive contact sensor assembly of claim 18, wherein the conducting layer extends out from the outer perimeters of the electrostatic shield layer to the surface of the entity.

### Claim 20 (depends on 14)

The non-resistive contact sensor assembly of claim 14, further comprising a housing that is treated with an ionized liquid.
