Electrostatic levitation apparatus consisting of a two-dimensional quadrupole and sphere electrode couple was developed for space material experiments. Levitation force arises from a combination of alternating current voltage and direct current applied to two dimensional quadrupole and a sphere electrode couple. Static and stable levitation of a solid sample was achieved using this combination. Sample heating was required in space material experiments. However, temperature could not be raised to the melting point of a sample such as metal and ceramics, since heating rays were mostly shielded by the electrodes. We thus proposed a new concept for levitation electrodes satisfying both static levitation and high temperature heating at the same time. The principal idea is to reduce the occupied area of the electrodes and reuse reflected rays from the levitated sample. This involves the use of a rod electrode of small diameter and reflection mirror. A combination of these constituents should show more different features not only in potential and electric field distribution, but also in heating power compared to prototype levitation apparatus. To confirm this, the following were theoretically analyzed using a computer; potential distribution, sample motion and sample heating power. The electrostatic levitation apparatus with rod electrodes and reflection mirror satisfied both static levitation and high temperature heating of a sample.
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