A new method for the measurement of wave potentials using a low-impedance emissive probe is studied. In this method, a wave potential is estimated not from a floating potential change but from a time-varying emitted electron current from the probe. Results indicate that wave potentials observed in this way are usually considerably higher but more reliable than those obtained in a conventional high-impedance emissive probe technique.
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Tadao Honzawa (1987) studied this question.
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