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The Mean-Projection Method for the Transverse Calibration of Accelerometers. II. Experiments

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This paper follows a previous one in which the Mean-Projection Method was presented and the dynamics of a shaker with a pivoting accelerometer was carefully analysed. This method is aimed at calibrating both the relative transverse sensitivity of an accelerometer and the relative transverse motion of a shaker with standard equipment (available in laboratories not sepcialised in metrology). It is based on pivoting the accelerometer around the principal axis of the shaker. The experimental set-up is presented in accordance with the requirements that were described in the companion paper. The results obtained in a number of partial configurations confirm the hypotheses made in the theoretical analysis. It is shown that the main sources of uncertainty in the calibration of accelerometers by the Mean-Projection Method are only due to geometrical defects in the placement of the accelerometer. The results of calibration are shown to be in accordance with the specifications provided by a reference manufacturer. However, they are much more extended in frequency range and redundancy. The transverse motion of a shaker is also analysed for phase, amplitude, and direction.
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Document Type: Research Article

Publication date: March 1, 1998

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  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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