National Physical Laboratory

Acoustics Facilities

The Acoustics group's role is underpinned by its world leading, specialist and often unique purpose-built facilities. 

Sound in Air

  • Primary Standard Calibration of Microphones by Reciprocity
  • Anechoic Chamber
  • Hemi-anechoic Chamber
  • Small Anechoic Chamber
  • Reverberation Room
  • Listening Room
  • Plane Wave Duct
  • Pressure Chamber
  • Temperature and Relative Humidity Chamber

Ultrasonics

  • Primary Standard Calibration of Hydrophones by Optical Interferometry
  • Hydrophone Comparison Calibration Facility
  • 10 Axis Beam Plotting Facility
  • Secondary Beam Plotting Facility
  • Primary Standard Radiation Force Balance
  • Reference Radiation Force Balance Power Measurement
  • Buoyancy Target Power Measurement Facility
  • Thermal Test Object Rig
  • Thermal Imaging Rig
  • Tissue Mimic Manufacture
  • Materials Testing Facility
  • Speed of Sound Measurement Rig

Underwater Acoustics

  • Primary Standard Underwater Acoustic Coupler Reciprocity Facility
  • Acoustic Pressure Vessel
  • Wraysbury Open Water Facility
  • Large Open Tank
  • Small Open Tank