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This study focuses on a calculated displacement from acceleration profile with double integration. Structural displacement and vibrational response are important informations for safety inspection of buildings. Such inspection system requires multi point measurement with accelerometers. Because of piece to piece variations, individual examination is necessary to use a large number of accelerometers. For the purpose of individual high accuracy sensor test, this study proposes a new exciter device which converts rotation motion to sine wave vibration with parallel link mechanism. The proposed exciter provides accurate acceleration and assured circular displacement for sensor inspection. Experimental results determine a matrix with real sensor direction vectors. Sensitivities are also measured for each sensor direction by matching integrated orbit for the reference circle. These detailed parameters of multi-axis accelerometer are what conventional methods cannot determine.

nihon kikai gakkai ronbunshū. c

Examination System for Accelerometer with Parallel Link Mechanism Displacement Calculation by Integrated Acceleration and Individual Correction of Accelerometers