Acoustic Chamber Characterization

Technical Report · Thu Nov 01 00:00:00 EDT 2018

DOI:https://doi.org/10.2172/1483460· OSTI ID:1483460

O'Brien, Edward ^[1]; Kypta, Timothy ^[1]; Stanford, Joshua ^[1]; Tran, Hy D. ^[1]

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1. Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

The basis of this project was to characterize the various uncertainty contributors of an acoustic chamber. The acoustic chamber will be used to calibrate and characterize infrasound sensors used in the field in the frequency range of 0.001 Hz to 4 Hz. The components characterized include the internal volume of the chamber, the piston area of the speaker creating the dynamic sound wave, the environmental stabilization of the chamber and the chamber's leak rate. Also, the resonant frequency of the chamber was evaluated and found to be far outside the frequency band of interest.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA); US Department of Homeland Security (DHS); Defense Threat Reduction Agency (DTRA)
• DOE Contract Number: AC04-94AL85000; NA0003525
• OSTI ID: 1483460
• Report Number(s): SAND-2018-13174; 670256
• Country of Publication: United States
• Language: English

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