The use of a beryllium Hopkinson bar to characterize a piezoresistive accelerometer in shock environments

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The characteristics of a piezoresistive accelerometer in shock environments are being studied at Sandia National Laboratories in the Mechanical Shock Testing Laboratory. A Hopkinson bar capability has been developed to extend our understanding of the piezoresistive accelerometer, in two mechanical configurations, in the high frequency, high shock environments where measurements are being made. In this paper, the beryllium Hopkinson bar configuration with a laser doppler vibrometer as the reference measurement is described. The in-axis performance of the piezoresistive accelerometer for frequencies of dc-50 kHz and shock magnitudes of up to 70,000 g as determined from measurements with a beryllium Hopkinson ... continued below

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9 p.

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Bateman, V.I.; Brown, F.A. & Davie, N.T. March 1, 1996.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 103 times . More information about this article can be viewed below.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

The characteristics of a piezoresistive accelerometer in shock environments are being studied at Sandia National Laboratories in the Mechanical Shock Testing Laboratory. A Hopkinson bar capability has been developed to extend our understanding of the piezoresistive accelerometer, in two mechanical configurations, in the high frequency, high shock environments where measurements are being made. In this paper, the beryllium Hopkinson bar configuration with a laser doppler vibrometer as the reference measurement is described. The in-axis performance of the piezoresistive accelerometer for frequencies of dc-50 kHz and shock magnitudes of up to 70,000 g as determined from measurements with a beryllium Hopkinson bar are presented. Preliminary results of characterizations of the accelerometers subjected to cross-axis shocks in a split beryllium Hopkinson bar configuration are presented.

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9 p.

Notes

OSTI as DE96006397

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  • 42. annual technical meeting and exposition of the Institute of Environmental Sciences, Orlando, FL (United States), 12-17 May 1996

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  • Other: DE96006397
  • Report No.: SAND--96-0567C
  • Report No.: CONF-960538--2
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 211589
  • Archival Resource Key: ark:/67531/metadc665742

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • March 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • April 14, 2016, 2:04 p.m.

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Bateman, V.I.; Brown, F.A. & Davie, N.T. The use of a beryllium Hopkinson bar to characterize a piezoresistive accelerometer in shock environments, article, March 1, 1996; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc665742/: accessed November 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.