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Acceleration, Vibration, and Acoustics


The Acceleration, Vibration, and Acoustics 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 Acceleration, Vibration, and Acoustics 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. 

For more information on the new IEEE MEMS Standard for Sensor Performance Parameter Definitions, see

Major Accomplishments:

  • Collaboration with the Department of Veterans Affairs to advance the measurement science for adaptive hearing aid technologies
  • Upgraded hearing aid measurement systems
  • iNEMI and ITRS MEMS Technology Roadmaps 
  • IEEE Standards Committee for MEMS Device Testing
  • Updating (in progress) equipment for the precision vibration measurement service 
  • New goniometer for characterizing MEMS accelerometer sensitivity for development of standard testing protocols

Lead Organizational Unit:



Michael Gaitan, Project Leader
Richard Allen
Jon Geist
Randall Wagner

Yaqub Afridi
Steven Fick
Beverly Payne
Thomas Proctor

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.


Michael Gaitan

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