Patent USH536H successfully refreshed from Google Patents.
USH536H
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Method of detecting and locating an electrostatic discharge event
Assignee: United States Department of the Army
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Filing: 1986-07-18
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Granted: 1988-10-04
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Expires: 2006-07-18
Abstract
Abstract A method of locating an electrostatic discharge event in a predetermined ucture by sensing electromagnetically that an electrostatic discharge event has occurred and producing a trigger signal from the electromagnetic sensing to control a recording device for the starting of time, utilizing a plurality of acoustic detectors about the structure for sensing the acoustic of the electrostatic discharge event, determining the time elapsed between the starting of time by the electromagnetic sensing and the signals sensed by the acoustic detectors and utilizing the information gained from the times sensed and the predetermined locations of the sensors to determine the location of the electrostatic discharge event in the predetermined structure.
Inventors
- 👤 Brian R. Strickland
- 👤 George R. Edlin
- 👤 Calvin C. Easterbrook
- 👤 Thomas G. Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:37
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/22; G01N29/24; G01N29/2412; G01N29/14; G01R; G01R31/00; G01R31/12; G01R31/1209; G01N2291/00; G01N2291/01; G01N2291/011
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
125 words
A method of locating an electrostatic discharge event in a predetermined structure, said method comprising sensing electromagnetically that an electrostatic discharge event has occurred, producing a trigger signal from said sensed electromagnetic discharge event and utilizing said trigger signal to control a recording device and start the counting of time at t=0, sensing acoustics from said electrostatic discharge event at three spaced apart positions on said structure and communicating the sensed acoustics as inputs to said recording device to determine the time ellapsed from t=0 until the acoustics from the electrostatic discharge event reaches each of the three sensing acoustic and utilizing the information gained by the electromagnetic sensing and the acoustic sensing to determine the location of the electrostatic discharge event in said structure.
Claim 2
Independent Claim
125 words
A method of locating an electrostatic discharge event in a predetermined structure, said method comprising sensing electromagnetically that an electrostatic discharge event has occurred, producing a trigger signal from said sensed electromagnetic discharge event and utilizing said trigger signal to control a recording device and start the counting of time at t=0, sensing acoustics from said electrostatic discharge event at three spaced apart positions on said structure and communicating the sensed acoustics as inputs to said recording device to determine the time ellapsed from t=0 until the acoustics from the electrostatic discharge event reaches each of the three sensing acoustic and utilizing the information gained by the electromagnetic sensing and the acoustic sensing to determine the location of the electrostatic discharge event in said structure.
Claim 3
Dependent Claim
48 words
A method of locating an electrostatic discharge event as set forth in claim 1, wherein an antenna is used in the electromagnetic sensing of said electrostatic charge event, and wherein high frequency microphones with frequency response from 2.5 KHz to 35 KHz are used for said acoustic sensing.
Claim 4
Dependent Claim
22 words
A method of locating an electrostatic discharge event as set forth in claim 2, wherein said recording device utilized is an oscilloscope.
Claim 5
Dependent Claim
26 words
A method of locating an electrostatic discharge event as set forth in claim 3, wherein said acoustic sensing is sensed at random positions about said structure.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-10-04 | 1992-04-04 | 1992-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-04 | 1996-04-04 | 1996-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-04 | 2000-04-04 | 2000-10-04 | $7700.00 | Window Closed / Lapsed |