Title :
A novel high common mode DC ammeter
Author :
Shea, John J. ; Bilodeau, Thomas ; Dollinger, R.
Author_Institution :
Westinghouse Sci. & Technol. Center, Pittsburgh, PA, USA
fDate :
8/1/1990 12:00:00 AM
Abstract :
A wide-range DC ammeter for laboratory research, capable of operating at high voltage, is described. Low cost, easy construction, versatility, and commonly available components were desired design requirements. The ammeter consists of a series-connected microammeter and milliammeter. Specifications include linear current sensing from 1 μA to 1 mA with a fixed linear scale resolution of 1 μA/div for the microammeter and 20 μA/div for the milliammeter with an accuracy of ±2.5% of full scale for both meters, operating voltage up to 30 kV DC, short circuit, and RF transient protection. The principles of operation and a method for calibrating the ammeter are included
Keywords :
ammeters; high-voltage techniques; laboratory apparatus and techniques; 1 muA to 1 muA; 30 kV; RF transient protection; calibration; fixed linear scale; high common mode DC ammeter; ion current measurement; laboratory research; linear current sensing; microammeter; milliammeter; short circuit; Ammeters; Circuits; Costs; Current measurement; Electrostatic measurements; Geometry; Protection; Radio frequency; Space technology; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
