電気標準用ボビンのピッチ精度測定

概要

論文の詳細を見る
The electric standard System was renewed in 1977 in Japan. In order to establish this system, a precision solenoid for electric standard use, which is manufactured by winding a copper, wire on a quartz bobbin having threads, is required. The manufacture of the precision solenoid requires the measurement of the pitch error of the bobbin before the winding a copper wire. Therefore a new measuring machine which has a very large cube corner and two electronic comparator's gauge heads as feelers, is manufactured as a trial by utilizing the screw lead measuring machine with a laser interferometer. The main results are as follows : (1) The measurement of the thread having large diameter (250mm in this case) and small pitch (1 mm in this case) became to be possible. (2) The result of measurement by this new measuring machine for the bobbin shows a fairly good agreement with that by the Moore's coordinate measuring machine. (3) The preciseness of measurement is O.15μm for repeatability in the standard deviation.
公益社団法人精密工学会の論文
1983-04-05