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Title: Calibration of a Hopkinson Bar with a Transfer Standard

A program requirement for field test temperatures that are beyond the test accelerometer operational limits of −30° F and +150° F required the calibration of accelerometers at high shock levels and at the temperature extremes of −50° F and +160° F. The purposes of these calibrations were to insure that the accelerometers operated at the field test temperatures and to provide an accelerometer sensitivity at each test temperature. Because there is no National Institute of Standards and Technology traceable calibration capability at shock levels of 5,000–15,000 g for the temperature extremes of −50° F and +160° F, a method for calibrating and certifying the Hopkinson bar with a transfer standard was developed. Time domain and frequency domain results are given that characterize the Hopkinson bar. The National Institute of Standards and Technology traceable accuracy for the standard accelerometer in shock is ±5%. The Hopkinson bar has been certified with an uncertainty of 6%.
Authors:
 [1] ;  [1] ;  [1] ;  [1]
  1. Sandia National Laboratories, Albuquerque, NM 87185, USA
Publication Date:
OSTI Identifier:
1197886
Grant/Contract Number:
AC04-76-DP00789
Type:
Published Article
Journal Name:
Shock and Vibration
Additional Journal Information:
Journal Volume: 1; Journal Issue: 2; Related Information: CHORUS Timestamp: 2016-08-23 04:12:11; Journal ID: ISSN 1070-9622
Publisher:
Hindawi Publishing Corporation
Sponsoring Org:
USDOE
Country of Publication:
Egypt
Language:
English