Abstract
ABSOLUTE measurements of high voltages, up to about 300 kilovolts, have been carried out by various workers using instruments of the attracted disk type, as originally devised by Lord Kelvin, in which the electrostatic deflecting force on the disk is balanced by mechanical means. When such instruments are operated in air, large spacings are necessary for the higher voltages, and difficulties arise in the production of a uniform field without the use of excessively large electrode diameters. This has been overcome to some extent by one group of workers1, who have enclosed the cylindrical space between the electrodes with a series of guard-rings. In another arrangement2, the apparatus is operated in compressed gas, with a consequent reduction in the spacing between the electrodes for a given voltage.
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References
Brookes, H. B., Defandorf, F. M., and Silsbee, F. B., J. Research, Nat. Bur. Stand., 20, 253 (1938).
Palm, A., Z. tech. Phys., 14, 390 (1933).
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MEEK, J., WATERTON, F. Measurement of High Voltages. Nature 156, 422–423 (1945). https://doi.org/10.1038/156422a0
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DOI: https://doi.org/10.1038/156422a0
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