Visually detecting electrostatic discharge events
First Claim
Patent Images
1. A method comprising:
- providing an electrostatic discharge (ESD) indicator on a surface of a structure, the ESD indicator comprising an electric field sensitive material configured to undergo a specific color change in response to an electric field and return back to its original color after a predetermined time period, the specific color change indicating a location, field strength, direction, and duration of an ESD event;
visually detecting an exposure of the structure to the ESD event via the specific color change of the ESD indicator between two or more different colors; and
quantifying a severity of the ESD event based on a color resulting from the specific color change,wherein the electric field sensitive material comprises an electrochromistic material.
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Abstract
Methods and structures provide an electrostatic discharge (ESD) indicator including an electric field sensitive material configured to undergo a specific color change in response to an electric field. An exposure of the structure to an ESD can be visually determined via the specific color change of the ESD indicator.
36 Citations
19 Claims
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1. A method comprising:
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providing an electrostatic discharge (ESD) indicator on a surface of a structure, the ESD indicator comprising an electric field sensitive material configured to undergo a specific color change in response to an electric field and return back to its original color after a predetermined time period, the specific color change indicating a location, field strength, direction, and duration of an ESD event; visually detecting an exposure of the structure to the ESD event via the specific color change of the ESD indicator between two or more different colors; and quantifying a severity of the ESD event based on a color resulting from the specific color change, wherein the electric field sensitive material comprises an electrochromistic material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A structure comprising:
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an object; and an electrostatic discharge (ESD) indicator comprised of an electric field sensitive material, wherein; the ESD indicator is a coating attached to a surface of the object; the ESD indicator is configured to change into one of a plurality of predetermined colors corresponding, respectively, to a plurality of predetermined electric field strength ranges, locations, directions and durations of an ESD event; and the electric field sensitive material is composed of one of;
(i) a single electrochromistic material configured to vary between multiple different colors corresponding to the plurality of predetermined electric field strength ranges; and
(ii) multiple variations of an electrochromistic material where each variation is tuned to produce a different color corresponding to the plurality of predetermined electric field strength ranges. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification