You are here: Home / Products / R&D System / Modules / POL - Polar Far-Field Measurement

Polar Far-Field Measurement (POL)

Features and Benefits

MMT
Balloon plot of SPL versus angles θ and φ at 2 kHz
  • Measurement under free field condition
  • Directivity in polar coordinates
  • Automatic control of turn-tables
  • 2D and 3D display modes (polar, baloon)
  • Open export interface (ASCII)

The POL module offers a fully automated measurement of the sound pressure on a spherical surface under free-field conditions in polar coordinates φ, θ and r. The measurement distance (r) should be larger than the largest dimension (d) of the device (r>>d) and the longest wavelength (r>>λ) to measure directivity in the far field.

Polar plot showing horizontal and vertical SPL at three frequencies



Templates coming with the software

KITemplateRoboticsPOL
Polar plot measurement with angular resolution of 10 degree.





Patents

Germany: 102013000684; USA: 9,584,939B2; China: 2014100795121

To top