Title :
A new four terminal-pair bridge for impedance measurements at frequencies up to 1 MHz
Author :
Awan, S.A. ; Kibble, B.P. ; Robinson, I.A. ; Giblin, S.P.
Author_Institution :
Centre for Electromagnetic & Time Metrology, Nat. Phys. Lab., Teddington, UK
Abstract :
A new four terminal-pair bridge has been developed for measuring capacitance and resistance standards at frequencies up to 1 MHz. The bridge is based on high frequency IVDs, to create voltage ratios, which are calibrated using a "permuting capacitors" device. Preliminary measurements of the capacitance and dissipation factor of a 100 pF standard up to 1 MHz are in good agreement with calculated values, from its measured parasitic impedances.
Keywords :
Bridge circuits; Calibration; Capacitance measurement; Electric resistance measurement; Measurement standards; Measurement uncertainty; Voltage dividers; 1 MHz; 100 pF; HF inductive voltage dividers; capacitance standards; dissipation factor; four terminal-pair bridge; impedance measurement; parasitic impedances; permuting capacitors device; resistance standards; traceable calibration; uncertainty analysis; voltage ratios; Bridge circuits; Cables; Capacitance measurement; Capacitors; Electrical resistance measurement; Electromagnetic measurements; Frequency measurement; Impedance measurement; Measurement standards; Switches;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2000 Conference on
Conference_Location :
Sydney, NSW, Australia
Print_ISBN :
0-7803-5744-2
DOI :
10.1109/CPEM.2000.850931
