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

Abstract

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.

Authors:
; ; ;  [1]
  1. University of L’Aquila, Department of Industrial and Information Engineering and Economics (DIIIE), via G. Gronchi, 18, 67100 L’Aquila (Italy)
Publication Date:
OSTI Identifier:
22608645
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1740; Journal Issue: 1; Conference: 12. international A.I.VE.LA. Conference on vibration measurements by laser and noncontact techniques: Advances and applications, Ancona (Italy), 29 Jun - 1 Jul 2016; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ACCELERATION; ACCELEROMETERS; ACCURACY; CALIBRATION; CAMERAS; CONTROL SYSTEMS; EQUIPMENT; EVALUATION; FREQUENCY RANGE; GAIN; INSTALLATION; PERFORMANCE; SENSORS

Citation Formats

D’Emilia, Giulio, E-mail: giulio.demilia@univaq.it, Di Gasbarro, David, E-mail: david.digasbarro@graduate.univaq.it, Gaspari, Antonella, E-mail: antonella.gaspari@graduate.univaq.it, and Natale, Emanuela, E-mail: emanuela.natale@univaq.it. Accuracy improvement in a calibration test bench for accelerometers by a vision system. United States: N. p., 2016. Web. doi:10.1063/1.4952690.
D’Emilia, Giulio, E-mail: giulio.demilia@univaq.it, Di Gasbarro, David, E-mail: david.digasbarro@graduate.univaq.it, Gaspari, Antonella, E-mail: antonella.gaspari@graduate.univaq.it, & Natale, Emanuela, E-mail: emanuela.natale@univaq.it. Accuracy improvement in a calibration test bench for accelerometers by a vision system. United States. doi:10.1063/1.4952690.
D’Emilia, Giulio, E-mail: giulio.demilia@univaq.it, Di Gasbarro, David, E-mail: david.digasbarro@graduate.univaq.it, Gaspari, Antonella, E-mail: antonella.gaspari@graduate.univaq.it, and Natale, Emanuela, E-mail: emanuela.natale@univaq.it. Tue . "Accuracy improvement in a calibration test bench for accelerometers by a vision system". United States. doi:10.1063/1.4952690.
@article{osti_22608645,
title = {Accuracy improvement in a calibration test bench for accelerometers by a vision system},
author = {D’Emilia, Giulio, E-mail: giulio.demilia@univaq.it and Di Gasbarro, David, E-mail: david.digasbarro@graduate.univaq.it and Gaspari, Antonella, E-mail: antonella.gaspari@graduate.univaq.it and Natale, Emanuela, E-mail: emanuela.natale@univaq.it},
abstractNote = {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.},
doi = {10.1063/1.4952690},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1740,
place = {United States},
year = {Tue Jun 28 00:00:00 EDT 2016},
month = {Tue Jun 28 00:00:00 EDT 2016}
}