The surface potential was measured with an electrostatic voltmeter
(Monroe 244 Model with 1017AE electrostatic voltage probe) immediately after charging.
These companies find necessary the use of more robust process assessment tools, such as an electrostatic voltmeter
and ESD event detectors.
has introduced the Model 400, a noncontacting electrostatic voltmeter
that provides desirable accuracy, fast speed of response and other features.
The Model 279L Electrostatic Voltmeter
has a range of [+ or -] 300 V, accuracy of 0.1% or 10 mV, and resolution of 100 mV.
The charge was estimated using a device similar to the Faraday cylinder; the deposited material was shaken down into the inner chamber, which was connected to the electrostatic voltmeter
. From the voltmeter readings U and known capacitance of the measuring circuit C, the charge magnitude was calculated as follows: q = U x C; then, after the sample was weighed, an average mass (total) charge was found: q/m, C/kg.
In addition, the non-contact electrostatic voltmeters
and field meters complement those of Trek, AE's most recent acquisition.
TREK INC, a designer and manufacturer of high-voltage amplifiers and electrostatic voltmeters
, is launching its new Electrostatic Chuck Supply, Trek Model 646, at SVC TechCon 2013.
Two options for mounting instruments inside equipment include static sensors and special electrostatic voltmeters
and electrostatic fieldmeters with small probes.