C型電気鋼板積層体の応用第4報:変位の検出機構の特性の検討
1956 年 25 巻 8 号 p. 338-341
詳細
1956 年 25 巻 8 号 p. 338-341
As previously reported, the resultant of the voltage in the moving coil and that in the fixed winding may come near zero irrespective of the wave form of the exciting current, but its reduction to complete zero was not possible on account of probable harmonics which affects very much the controlling accuracy in practice. The influences of the voltage, frequency and wave form of the exciting current are therefore closely studied. The results are that the reduction of the resultant voltage to complete zero could not be attained but that by preceeding adjustment of the control, its position for the minimum voltage remains fixed for any exciting current and also that the detection of displacement is achieved with the accuracy of +0.003mm by using a rectangular wave voltage.
