Title :
Highly sensitive picoampere meter
Author :
Rietveld, G. ; Heimeriks, H.
Author_Institution :
NMi Van Swinden Lab., Delft, Netherlands
Abstract :
We have developed a sensitive picoampere meter for accurate room temperature measurement of currents below 10 pA. The main characteristics of the instrument are an extremely low input current, far below 1 fA, and fully automated operation. Preliminary calibration of the instrument with a separately developed facility has been done at the accuracy level of a few parts in 10/sup 4/.
Keywords :
ammeters; calibration; electric current measurement; sensitivity; 10 pA; accuracy level; calibration; current measurement; extremely low input current; fully automated operation; high sensitivity; picoampere meter; room temperature measurement; vibrating reed capacitor; AC generators; Calibration; Capacitors; Current measurement; Feedback loop; Instruments; Leakage current; Resonant frequency; Vibration measurement; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.547100
