三次元振動発生機とレーザ干渉計による三軸加速度計の三次元加速度計としての校正法に関する研究 : 加速度はベクトルであるとの立場からの新手法の提案(機械力学,計測,自動制御)

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This paper describes the system for the calibration of accelerometers using a three-dimensional vibration generator and laser interferometers. The vibration generator is an electrodynamic type, IMV TS-1030 S, which can generate motion with the arbitrary direction in the three-dimensional coordinate system under sinusoidal, random and shock operation mode. It has five actuators in total, two actuators each for X-axis and Y-axis and one for Z-axis motion. Motion of the table is monitored during the operation by the three piezoelectric-accelerometers, BK 4393. The signal from them is used for the control of the table, feed forward and feed back. Motion of the table in threedimensional space is measured by three laser interferometers, Neoark MLD 301 K. The sensitivity of an accelerometer is defined in the form of a matrix including the cross sensitivity. Size of the matrix is 1×3, 2×3 and 3×3 for one-axis accelerometer, two-axis accelerometer and three-axis accelerometer, respectively. Since acceleration is a vector quantity, input signals and output signals of an accelerometer make a vector space. An accelerometer is mathematically a device executing a projection between two vector spaces. This system is the realization of this concept.
社団法人日本機械学会の論文
2004-09-25