Calibration of accelerometers for the measurement of microvibrations

Santiago Prowald, Julián B. and Reina Barragan, Francisco and Sanz Andres, Angel Pedro (1998). Calibration of accelerometers for the measurement of microvibrations. "Journal of Spacecraft and Rockets", v. 35 (n. 5); pp. 695-702. ISSN 0022-4650. https://doi.org/10.2514/2.3387.

Description

Title: Calibration of accelerometers for the measurement of microvibrations
Author/s:
  • Santiago Prowald, Julián B.
  • Reina Barragan, Francisco
  • Sanz Andres, Angel Pedro
Item Type: Article
Título de Revista/Publicación: Journal of Spacecraft and Rockets
Date: September 1998
ISSN: 0022-4650
Volume: 35
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Vehículos Aeroespaciales [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The accelerometers used for the measurement of microvibrations or microgravity applications, such as active control of space structures, attitude control, scientific payloads, or even on-Earth testing of structures at very low-excitation levels, require a dedicated calibration procedure that includes the gravitational effects. Otherwise, on-Earth calibrations can be inaccurate due to the collateral projection of the local gravity onto the sensitive axis. An on-Earth calibration technique for the 107102s amplitude range and 0-100-Hz frequency range is described. Special attention has been given to the modeling of gravitational effects on the response of the calibration device and the accelerometer itself. The sensitivity and resolution tests performed on piezoelectric accelerometers showthe accuracy andthe potential of thistechnique. Typical scale factorun certainty, which hasbeen carefully analyzed, is of the order of 2% at acceleration levels of 10sg.

More information

Item ID: 39907
DC Identifier: http://oa.upm.es/39907/
OAI Identifier: oai:oa.upm.es:39907
DOI: 10.2514/2.3387
Official URL: http://arc.aiaa.org/doi/abs/10.2514/2.3387?journalCode=jsr
Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 25 Apr 2016 10:50
Last Modified: 25 Apr 2016 10:50
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