Electrostatic discharge event locators

Details Electrostatic discharge event locators Electrostatic discharge event locators

1997-04-19

1999-07-13

Regan, Maura

Electricity: measuring and testing

Testing potential in specific environment

Voltage probe

324457, G01R 3102

Patent

active

059231602

ABSTRACT:
Determining the location of an ESD event is achieved through the use of an envelope detector or absolute value comparator which identifies the arrival of an electromagnetic waveform generated by an ESD event at each of a plurality of antennas. Arrival times are compared to determine the location of the ESD event. A plurality of N antennas are employed, and each antenna is coupled to a corresponding envelope detector, threshold discriminator, switch, and register. The output of a clock is coupled to the switches, and a microprocessor is coupled to the registers. When an antenna receives a waveform corresponding to ESD, the envelope detector extracts an envelope signal related to the envelope of the waveform and couples the envelope signal to the threshold discriminator. When the envelope signal has a value above a specified threshold, the threshold discriminator sends a signal to latch the current count of the clock into the corresponding register. When each register is loaded with an arrival time, the microprocessor applies a triangulation procedure to the arrival times to calculate the location of the ESD event.

REFERENCES:
patent: H536 (1988-10-01), Strickland
patent: 3787707 (1974-01-01), Gregg
patent: 4631473 (1986-12-01), Honda
patent: 5598099 (1997-01-01), Castleman
"The GPS Equations and the Problems of Apollonius," J. Hoshen, IEEE Trans. on Aerospace & Elec. Sys., vol. 32, No. 3, Jul. 1996, pp. 1116-1124.

Affiliated with

Also associated with

Rating

Electrostatic discharge event locators does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrostatic discharge event locators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrostatic discharge event locators will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2278669