Low Voltage Ac-Dc Difference Standards at Spring Singapore
- Resource Type
- Conference
- Authors
- Liu, L.X.; Chua, S.W.; Sim, T.Y.; Ang, C.K.
- Source
- 2004 Conference on Precision Electromagnetic Measurements Precision Electromagnetic Measurements Digest, 2004 Conference on. :186-187 Jun, 2004
- Subject
- Fields, Waves and Electromagnetics
Low voltage
Springs
Calibration
Measurement standards
Standards development
Metrology
Voltage measurement
Frequency
Flowcharts
Switches
- Language
This paper presents two low voltage ac-dc difference measurement systems established at SPRING Singapore. The systems use micropotentiometers and resistive divider to scale the voltage from primary reference level to 1 mV to provide accurate mV-level ac-dc difference calibration at frequency range from 10 Hz to 1 MHz. The measurement results of the two systems and the loading effect correction are discussed