Tactical chemical detector

Patent metadata

Field	Value
Publication number	US-11175233-B2
Application number	US-202016801540-A
Country	US
Kind code	B2
Filing date	Feb 26, 2020
Priority date	Feb 27, 2019
Publication date	Nov 16, 2021
Grant date	Nov 16, 2021

Abstract

A tactical chemical detector may include a light array comprising a plurality of light sources; a sensor optic comprising a plurality of optic elements, each optic element in optical communication with one of the plurality of light sources; a sensor array comprising a plurality of sensors arranged on a substrate, each sensor in optical communication with one of the plurality of light sources and wherein at least one vent opening extends through the substrate; a power source configured to selectively provide power the light array and the sensor array; and a housing having a first side and a second side and enclosing the light array, the sensor optic, the sensor array, and the power source.

First claim

The invention claimed is:

1. A tactical chemical detector comprising:
a light array comprising a plurality of light sources;
a sensor optic comprising a plurality of optic elements, each optic element in optical communication with one of the plurality of light sources;
a sensor array comprising a plurality of sensors comprising nanofiber chemical sensors, the sensors arranged on a substrate, each sensor in optical communication with one of the plurality of light sources;
a power source configured to selectively provide power to the light array and the sensor array; and
a housing having a first side and a second side;
wherein at least a plurality of nanofibers in at least one sensor have been synthesized with specific functional groups to allow the sensors to interact with particular materials;
wherein the housing encloses the light array, the sensor optic, and the sensor array; and
wherein at least one vent opening extends through the substrate.

2. The tactical chemical detector of claim 1 , further comprising a pump, a first opening in the first side of the housing, and a second opening in the second side of the housing;
wherein the pump is configured to pump fluid through into the tactical chemical detector through the first opening, across the sensor array, and out of the tactical chemical detector through the second opening.

3. The tactical chemical detector of claim 1 , further comprising a hydrophobic material configured to reduce or eliminate the amount of moisture entering the tactical chemical detector;
wherein the first side of housing defines a first opening; and
wherein the hydrophobic material at least partially covers the first opening in the housing.

4. The tactical chemical detector of claim 3 , further comprising a filter disposed within the one or more housing;
wherein the filter at least partially covers the first opening.

5. The tactical chemical detector of claim 1 , wherein the sensor optic is generally annular;
wherein the sensor optic defines a generally circular opening therethrough;
wherein the first side of the housing defines a first opening;
wherein the second side of the housing defines a second opening; and
wherein the first opening, the second opening, and the opening defined through the sensor optic are generally aligned with one another.

6. The tactical chemical detector of claim 1 , further comprising at least one of a haptic motor, a piezoelectric element, an alerting light source, and a display panel disposed within the housing and in communication with the sensor array, each operable to generate an alert in the tactical chemical detector.

7. The tactical chemical detector of claim 6 , further comprising at least one additional sensor; wherein the at least one additional sensor is configured to detect at least one of oxygen levels, carbon monoxide levels, ethylene oxide, and lower explosive limits of explosive vapors.

8. The tactical chemical detector of claim 1 , wherein the plurality of optic elements are configured to generally collimate light from the light sources; and
wherein each of the plurality of sensors is in optical communication with one of the plurality of light sources via at least one of the plurality of optic elements.

9. A sensing assembly comprising:
a light array comprising a plurality of light sources;
a sensor optic comprising a plurality of optic elements, each optic element in optical communication with one of the plurality of light sources; and
a sensor array comprising a plurality of sensors disposed on a substrate, each sensor comprising nanofiber chemical sensors, and each sensor in optical communication with one of the plurality of light sources;
wherein at least a plurality of nanofibers in at least one sensor have been synthesized with specific functional groups to allow the sensors to interact with particular materials; and
wherein at least one vent opening extends through the substrate of the sensor array.

10. The sensing assembly of claim 9 , further comprising at least one mixing baffle disposed on the sensor optic and configured to direct a fluid over at least one of the plurality of sensors.

11. The sensing assembly of claim 9 , wherein the plurality of sensors are arranged in proximity to one another on the substrate in a generally circular arrangement; and
wherein a plurality of vent openings are disposed around an outer perimeter of the sensors.

12. The sensing assembly of claim 11 , wherein each of the sensors is associated with at least one vent opening.

13. The sensing assembly of claim 9 , wherein the sensor optic is generally annular in shape;
wherein the sensor optic comprises a collector side configured to accept the light array and an emitter side comprising a plurality of mixing baffles; and
wherein a plurality of optic elements extends through sensor optic between collector side and emitter side.

14. The sensing assembly of claim 9 , wherein the optic elements are configured to generally collimate light from the light sources; and
wherein each of the plurality of sensors is in optical communication with one of the plurality of light sources via at least one of the plurality of optic elements.

15. A sensor optic having a collector side and an emitter side, the sensor optic comprising:
at least one mixing baffle disposed on the emitter side; and
a plurality of optic elements extending through sensor optic from collector side to emitter side, each optic element associated with a sensor comprising nanofiber chemical sensors;
wherein at least a plurality of nanofibers in at least one sensor have been synthesized with specific functional groups to allow the sensors to interact with particular materials;
wherein the sensor optic may be generally annular in shape;
wherein sensor optic defines an opening extending therethrough;
wherein the sensor optic is capable of collimating light and directing it to a plurality of sensors; and
wherein the optic elements are disposed around the opening.

16. The sensor optic of claim 15 , wherein the collector side of the sensor optic is configured to accept a light array comprising at least one light source; and
wherein each optic element is in optical communication with a light source.

17. The sensor optic of claim 15 , wherein the at least one mixing baffle extends generally from a position proximate the opening toward an outer perimeter of the sensor optic.

18. The sensor optic of claim 15 , wherein the plurality of optic elements are configured to generally collimate light from light sources.

Assignees

• Gentex Corp
• Vaporsens

Inventors

• Hallack Jason D
• Hamlin Bradley R
• Okamitsu Jeffrey K
• Riches Ross A
• Later Douglas W
• Bunes Benjamin R

Classifications

• G01N33/0047

  Organic compounds · CPC title

• G01N33/004

  CO or CO2 · CPC title

• G01N33/0031 Primary

  comprising two or more sensors, e.g. a sensor array · CPC title

• G01N27/127

  comprising nanoparticles · CPC title

• G01N2201/068

  Optics, miscellaneous · CPC title