Accuracy improvement in a calibration test bench for accelerometers by a vision system

A procedure is described in this paper for the accuracy improvement of calibration of low-cost accelerometers in a prototype rotary test bench, driven by a brushless servo-motor and operating in a low frequency range of vibrations (0 to 5 Hz). Vibration measurements by a vision system based on a low...

Full description

Saved in:
Bibliographic Details
Main Authors: D’Emilia, Giulio, Di Gasbarro, David, Gaspari, Antonella, Natale, Emanuela
Format: Conference Proceeding
Language:English
Subjects:
ACCELERATION
ACCELEROMETERS
ACCURACY
Brushless motors
CALIBRATION
CAMERAS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
CONTROL SYSTEMS
EVALUATION
FREQUENCY RANGE
GAIN
INSTALLATION
Low frequencies
Motion control
SENSORS
Servomechanisms
Servomotors
Three axis
Uncertainty
Vision systems
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A procedure is described in this paper for the accuracy improvement of calibration of low-cost accelerometers in a prototype rotary test bench, driven by a brushless servo-motor and operating in a low frequency range of vibrations (0 to 5 Hz). Vibration measurements by a vision system based on a low frequency camera have been carried out, in order to reduce the uncertainty of the real acceleration evaluation at the installation point of the sensor to be calibrated. A preliminary test device has been realized and operated in order to evaluate the metrological performances of the vision system, showing a satisfactory behavior if the uncertainty measurement is taken into account. A combination of suitable settings of the control parameters of the motion control system and of the information gained by the vision system allowed to fit the information about the reference acceleration at the installation point to the needs of the procedure for static and dynamic calibration of three-axis accelerometers.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4952690