デービス棒による加速度計の特性評価方法に関する研究 : 第2報,動的変位測定用レーザ干渉計の開発

概要

論文の詳細を見る
This report describes the design and the performance of a newly developed interferometer system. The interferometer enables us to measure the motion of a diffuse surface. Velocity ranging from l0^<-3> m/s to 10^0 m/s can be detected by mixing Doppler-shifted light reflected from the specimen with original (reference) light. The direction of motion is determined using two 90°out-of-phase reference beams. Uncertainty of the measurement is estimated to be ±5nm in displacement and ±5×10^<-4> m/s in velocity at most. Consequently, this interferometer can be used for absolute measurement of the transient motion induced by low-velocity impact, and is applicable to determination of the input of displacement-related sensors such as accelerometers.
一般社団法人日本機械学会の論文
1993-11-25