A New Method of Measuring High Frequency Voltages

    Article metrics


    IN the Elektrotechnische Zeitschrift for Aug. 13, L. Pungs and H. Vogler describe a new electro-optical method of measuring voltages of very high frequencies. In practice, some type of electrometer is generally employed, but with very high frequencies its readings are untrustworthy. The authors made a test on a good electrometer of a type usually employed, and found that up to one and a half million cycles per second it gave accurate and consistent results, but at twelve million cycles its readings were incorrect by errors lying between thirty and forty per cent. As these instruments are largely used in radio work for making investigations on the dielectric behaviour of insulating materials, it was necessary to find the cause of the inaccuracies and either correct their design or try to invent a new method. The errors of the instrument were found to be mainly due to the fact that its capacitance varied with its deflexion, for this led to resonance effects which made the readings quite irregular.

    Rights and permissions

    Reprints and Permissions

    About this article

    Cite this article

    A New Method of Measuring High Frequency Voltages. Nature 129, 138–139 (1932) doi:10.1038/129138a0

    Download citation


    By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.