Modeling and Experimental Analysis of Piezoelectric Shakers for High-Frequency Calibration of Accelerometers

Journal Article · Fri May 28 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3455480· OSTI ID:21366753

Vogl, Gregory W; Harper, Kari K; Payne, Bev ^[1]

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1. National Institute of Standards and Technology, 100 Bureau Drive, Stop 8220, Gaithersburg, MD, USA 20899-8220 (United States)

Piezoelectric shakers have been developed and used at the National Institute of Standards and Technology (NIST) for decades for high-frequency calibration of accelerometers. Recently, NIST researchers built new piezoelectric shakers in the hopes of reducing the uncertainties in the calibrations of accelerometers while extending the calibration frequency range beyond 20 kHz. The ability to build and measure piezoelectric shakers invites modeling of these systems in order to improve their design for increased performance, which includes a sinusoidal motion with lower distortion, lower cross-axial motion, and an increased frequency range. In this paper, we present a model of piezoelectric shakers and match it to experimental data. The equations of motion for all masses are solved along with the coupled state equations for the piezoelectric actuator. Finally, additional electrical elements like inductors, capacitors, and resistors are added to the piezoelectric actuator for matching of experimental and theoretical frequency responses.

• OSTI ID: 21366753
• Journal Information: AIP Conference Proceedings, Vol. 1253, Issue 1; Conference: 9. international conference on vibrational measurements by laser and non-contact techniques and short course, Ancona (Italy), 22-25 Jun 2010; Other Information: DOI: 10.1063/1.3455480; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELEROMETERS
ACTUATORS
CALIBRATION
CAPACITORS
DATA ACQUISITION
EQUATIONS OF MOTION
FREQUENCY MEASUREMENT
KHZ RANGE
PERFORMANCE
PIEZOELECTRICITY
RESISTORS
RESONANCE
SIMULATION
SOLENOIDS
DIFFERENTIAL EQUATIONS
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELECTRICITY
EQUATIONS
EQUIPMENT
FREQUENCY RANGE
MEASURING INSTRUMENTS
PARTIAL DIFFERENTIAL EQUATIONS