Pierre G

1
Theoretical Modelling within the Acoustics Group
at the National Physical Laboratory
Pierre Gélat National Physical Laboratory 3
April 2003
2
Acoustics at NPL

• The fundamental role of the Acoustics Group at
  the National Physical Laboratory is to develop
  and maintain primary measurement standards for
  sound in air and water across a wide range of
  frequencies, from the infrasonic to tens of
  megahertz.
• A range of high quality measurements services are
  delivered to users throughout the UK to support
  trade, manufacturing, science, health safety,
  environmental protection, quality assurance,
  statute and regulation. Our measurement systems
  and facilities are state-of-the-art, providing in
  many instances unrivalled precision, accuracy,
  stability and sensitivity.

http//www.npl.co.uk/npl/acoustics
3
Theoretical Modelling

• Theoretical modelling is often carried out in
  order to assist measurement
• The following topics will be discussed
• Developments in Acoustic Emission at NPL
• Radiation Force Calculations on Apertured Piston
  Fields
• Development of a Theoretical Model for Membrane
  Hydrophone Transfer Characteristics
• Finite Element Model of an Ear Simulator

http//www.npl.co.uk/npl/acoustics