24 resultados para voltmeter
Resumo:
The paper describes a simple instrument for the measurement of the peak amplitudes of impulse voltages up to 250 v with an accuracy to ±3%. The response of the instrument is fast enough to read the peak amplitude of a 0.5/10 μsec impulse wave and its response remains the same for impulses of longer duration. Its favourable response has been obtained by charging a capacitor through a thyratron and measuring the voltage across it by an inverted triode voltmeter. The discharge time constant of the instrument is 5000 sec so that the reading can be taken at leisure. It can be used for the measurement of peak amplitudes of repetitive impulse and power frequency voltages also
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"February 1971."
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"26 April 1983."
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"March, 1969."
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"21 June 1960."
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"February 1963."
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"April 1978."
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"August 1962."
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"24 May 1982."
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"October 1974."
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"November 1966."
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"March 1975."
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Includes index.
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"May 1967."
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"May 1967."