Deflections at the center of electrode used in an indicator of the condenser-type

The relatively small indicator instal1ed in the moving bodies was discussed in the previous report. But, there, the def1ection at the center of the special electrode (see Fig. 1) is indistinct. Here we calculated approximately the deflection to get the following equation; W_=qc^4/πD(1/3ln√c/a+a^2/4c^2+π/24-4/9). and we made sure of this by the experiment.別報で回転体内に装備する比較的小型の指圧計を発表した。ただ別報では受圧部すなわち特殊構造をした対極板（本稿中の図-1）の固有振動数の算定は，同心円等分布荷重と仮定して近似解を求めた。ここでは対極板構造に対するたわみの近似理論解を導き，あわせて実験により確め得たので報告する