Calibration of AC current from 10 µA to 1 mA AT 10 kHz

New AC current calibration equipment is developed, including high output impedance AC current sources, sampling resistors and AC voltage buffers, which is designed for calibrating AC current from 10μA to 1mA, at up to 10kHz. The output impedance of the AC current source is adequate enough to adapt t...

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Bibliographic Details
Main Authors: Liu Yue, Zhang Xiu-zeng, Zhao Hong-gang, Zheng Lian-ying, Deng Lin
Format: Conference Proceeding
Language:English
Subjects:
AC current
AC voltage buffer
Calibration
Impedance
load effect
Metrology
Operational amplifiers
output impedance
Resistors
sampling resistor
Uncertainty
Voltage measurement
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Description
Summary:New AC current calibration equipment is developed, including high output impedance AC current sources, sampling resistors and AC voltage buffers, which is designed for calibrating AC current from 10μA to 1mA, at up to 10kHz. The output impedance of the AC current source is adequate enough to adapt to most of the resistance load. The AC current source is connected to the sampling resistor with a very short wire, and is connected to UUT with a very short wire as well. The calibration uncertainty can be estimated as 68ppm, k=2.
ISSN:0589-1485
2160-0171
DOI:10.1109/CPEM.2012.6250725