Title :
A proposal for a toroidal cross capacitor
Author :
Castelli, Franco
Author_Institution :
Dipt. di Elettrotecnica, Politecnico di Milano, Italy
Abstract :
The paper illustrates a proposal which allows the availability of both secondary and absolute standard of capacitance having fixed absolute value known at construction and not by a change of capacitance. This has been achieved by the cross-capacitor toroidal form which is exempt from “end” effects. The proposal evaluates the best form of the ring electrodes and the feature of their design to fulfil this purpose with an uncertainty <0.1 ppm
Keywords :
capacitance measurement; capacitors; measurement standards; absolute standard; fixed absolute value; ring electrodes; secondary standard; toroidal cross capacitor; uncertainty; Capacitance measurement; Capacitors; Displacement measurement; Electrodes; Fasteners; Length measurement; Measurement standards; Optical interferometry; Proposals; Wavelength measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1997. IMTC/97. Proceedings. Sensing, Processing, Networking., IEEE
Print_ISBN :
0-7803-3747-6
DOI :
10.1109/IMTC.1997.603975
