&lt;title&gt;New method for absolute shock calibration of accelerometers&lt;/title&gt;

Link, Alfred; Martens, Hans-Juergen von; Wabinski, Wolfgang

doi:10.1117/12.307704

Cited by 9 publications

(7 citation statements)

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“…The identification procedure explained above was applied to experimental data taken from a shock acceleration standard of the PhysikalischTechnische Bundesanstalt (PTB) [4]. The shock acceleration standard is equipped with a shock exciter producing the propagation of elastic waves in a long, thin bar and a laser interferometer for measuring the motion occurring at the end of the bar surface to which the accelerometer under investigation is attached.…”

Section: Experimental Results and Model Validationmentioning

confidence: 99%

“…k 0 and k 1 are constants which depend on the interferometer construction. After analog-to-digital (A/D) conversion of uðtÞ the phase signal uðtÞ can be estimated by a demodulation procedure based on the generation of the baseband quadrature signals cos uðtÞ and sin uðtÞ [4]. The demodulation procedure furnishes the displacement signal sðtÞ ¼ kuðtÞ=4p given at the instants t ¼ kT , k ¼ 0; 1; .…”

Section: Estimation Of the Acceleration Signalmentioning

confidence: 99%

“…Usually, the accelerometer calibration procedure is based on stationary sinusoidal vibration input signals measured by laser interferometry (methods are well described in the international standards ISO 16063- 1:1998 andISO 16063-11:1999). To cover wider frequency ranges and high-level input accelerations (from 10 3 to 10 5 m/s 2 in particular), special calibration methods using shock excitation have been applied [1][2][3][4]. The latter are based on input signals which frequently may better reflect the usual working conditions of accelerometers.…”

Section: Introductionmentioning

confidence: 99%

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Accelerometer identification using shock excitation

Link

Martens

2004

Measurement

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Section: Experimental Results and Model Validationmentioning

confidence: 99%

Section: Estimation Of the Acceleration Signalmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Accelerometer identification using shock excitation

Link

Martens

2004

Measurement

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“…From the values MOd(t) , the parameters M and c°o fthe displacement-proportional modulation phase term can be calculated by solving the system ofN + 1 equations 'MOd(t) Acoswt1 -Bsinwt1 + (7 (14) The The method and procedure have been extensively described and analyzed'4 , and proposed for adoption as a standard method7.…”

Section: Mmentioning

confidence: 99%

<title>Laser interferometry as tool and object in vibration and shock calibrations</title>

et al. 1998

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The paper describes how laser interferometry can be used to respond to the increasing demands from industry and elsewhere that the traceability of vibration and shock measurements to SI units be established or improved. As an example of the top level of a hierarchic traceability system, the paper focuses on six different national standard devices using laser interferometry to ensure the realization and dissemination of the three translational motion quantities: acceleration, velocity and displacement, and the three rotational motion quantities: angular acceleration, angular velocity and rotation angle, in wide measurement ranges with sinusoidal, shock-shaped and other user-defined time histories. The application of the methods to the primary calibration of transducers (including laser interferometers as calibration objects) is demonstrated. The high accuracy of the primary calibration facilities serves, among other things, to investigate the behaviour of special laser vibrometers intended to be qualified as reference laser vibrometers applicable as a sub-system of calibration equipment, e.g., in a service calibration laboratory.

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“…Laser interferometric calibration of the shock transducers was investigated by A. Link et al in 1998, who have reported that the computer simulations and experimental investigations also proved that the peak value and the spectral components of shock-shaped accelerations can be measured with expanded uncertainties of less than 0.2% [3].…”

Section: Introductionmentioning

confidence: 99%

Determination of Pulse Width and Pulse Amplitude Characteristics of Materials Used in Pendulum Type Shock Calibration Device

Bilgiç

2017

Acta Phys. Pol. A

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Calibration of shock and vibration transducers is performed by using the methods described in ISO 16063-13 and 16063-22 standards, at primary and secondary levels respectively. At secondary level, the devices, generating mechanical shock, are pendulum shock calibrator, dropball shock calibrator, pneumatically operated piston shock calibrator and Hopkinson bar shock calibrator. The main parameters and requirements of the shock calibrator devices, named here, are also given in ISO 16063-22 standard. Pulse width and pulse amplitude are the important parameters in calibration of the shock and vibration transducers. Pulse width and shape depend on the material properties. In this paper the determination of pulse width and pulse amplitude characteristics of materials used in pendulum type shock calibration device, designed in TUBİTAK UME, is presented.

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<title>New method for absolute shock calibration of accelerometers</title>

Cited by 9 publications

References 1 publication

Accelerometer identification using shock excitation

Accelerometer identification using shock excitation

<title>Laser interferometry as tool and object in vibration and shock calibrations</title>

Determination of Pulse Width and Pulse Amplitude Characteristics of Materials Used in Pendulum Type Shock Calibration Device

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