中間軸用捩れ歪計

概要

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In order to obtain the constant of a torsion-meter, it is reasonable to measure the relation between torque and reading by statical method in workshop. But, as mentioned by the Author in the preceding paper^<(1)>, it is impossible to make the fixing end of shaft perfectly rigid by the twisting aparotus prevailed. This causes the displacement of fixing end and bending of shaft, so the torsion-meters of sleeve system are subjected to errors. The accurate value of the constant of a torsion-meter can be calculated, by using the modulus of rigidity, measured by the reliable strain-meters. The accurtate value of modulus of rigidity can be measured by the method of mechanical or optical lever. Since this method requires 4 to 5 m. clearance from both sides of shaft and four readings at different points, the Author has invented the present strain-meter, in order to avoid these defects. This meter, which may be considered in principle as the combination of two sets of author's optical torsion-meters^<(2)>, is free from the errors and defects mentioned above.
社団法人日本船舶海洋工学会の論文
1939-09-15