Device and method of monitoring grounding of personnel and...

Details Device and method of monitoring grounding of personnel and... Device and method of monitoring grounding of personnel and...

2005-08-16

2005-08-16

Hofsass, Jeffery (Department: 2636)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S660000, C340S664000, C340S657000, C340S652000, C340S653000, C340S650000

Reexamination Certificate

active

06930612

ABSTRACT:
A method and apparatus for monitoring grounding of personnel and equipment in electrostatic discharge (ESD) sensitive areas. The device generates a low voltage alternating current control signal (60) which is applied to personnel (50) and equipment (350) being monitored. The device further includes signal conditioning (66) and detection means (70) to distinguish static charges from the control signal and transmit an alarm (72) upon detection of such static charge. The method encompasses the use of an alternating current control signal to detect static charge.

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3M Model 724 Work Station Monitor Instructions, 21 pages.
Semtronics ZVM1002 Zero Volt Monitor, 2 pages.
Novx Corporation, Series 300 Workstation Monitor, User's Manual, San Jose, California, USA, Version 1.4, Jan. 6, 2000, 4 pages.

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