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Acoustics and Vibration Project


The Acoustics and Vibration Project provides measurement services, and develops measurements and documentary standards for the SI units of acceleration, sound pressure, and ultrasonic power. These activities provide traceability and support U.S. interests in commerce, defense, and public health and safety. 


The Acoustics and Vibration Project plays a critical role in nearly all sectors of the U.S. economy by providing SI-traceable measurements of acoustical and vibratory mechanical quantities. These measurements are crucial to domestic and international trade, cost-effective manufacture of new products, the competitiveness of U.S. companies and products in world markets, and enforcement of regulations. This project realizes, maintains, and disseminates the SI units of sound pressure and acceleration to a broad customer base including the aerospace, automotive, construction, and nuclear power industries, instrument and medical equipment manufacturers, university research laboratories, and the U.S. Departments of Defense, Energy, Labor, and Veterans Affairs (VA) through measurement services, external partnerships and collaborations. Project staff provides leadership in national and international standards activities, and represents U.S. interests in international metrology organizations and their comparisons of measurement capabilities to enable the recognition and acceptance of calibration certificates across borders. 

Major Accomplishments:

  • Collaboration with the Department of Veterans Affairs to advance the measurement science for adaptive hearing aid technologies
  • Calibrated Acoustics internal reference microphones, partially vetting new system
  • Compiled statistics for publication on long term stability of LS1 and WS1
  • Tested and analyzed LS1P microphone calibration repeatability
  • Set up testbed for standalone shaker characterization
  • Completed initial phase of upgrading hearing aid measurement systems 
Randy Wagner prepares a standardized manikin for hearing aid testing in NIST’s anechoic chamber.
Randy Wagner prepares a standardized manikin for hearing aid testing in NIST’s anechoic chamber.

Lead Organizational Unit:



Michael Gaitan, Project Leader
David Evans
Steven Fick
Randall Wagner

Beverly Payne
Thomas Proctor


Michael Gaitan

100 Bureau Drive, M/S 8120
Gaithersburg, MD  20899-8120