2022/04/20 by Wataru Kokuyama, Kokuyama, Wataru, Tomofumi Shimoda +3
Computer Science · Engineering · #Advanced Measurement and Metrology Techniques #FOS: Electrical engineering #FOS: Physical sciences #Geophysics and Sensor Technology #Instrumentation and Detectors (physics.ins-det) #Optical measurement and interference techniques #Signal Processing (eess.SP) #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.2204.09212
openalex publication_date 2022/04/20 · openalex created_date 2022/04/26 · openalex updated_date 2026/07/28
In this study, we developed an automated, multipoint primary accelerometer calibration system using a two-axis positioning stage and a heterodyne laser interferometer. The proposed system offers low-cost, convenient, and automated multipoint accelerometer calibration, enabling less calibration lead time. The positioning stage also offers better positioning repeatability of 1 um, which is impossible through manual alignments. We measured the surface deformation of a laser reflection adaptor for a single-ended accelerometer by measuring more than 450 measurement positions. Visualizing the deformation of laser reflection surfaces facilitates understanding the effects of deformation or nonrectilinear motion, which are among the most significant uncertainty components in high-frequency accelerometer calibrations.