B&K TYPE 9737 Portable Impedance Meter System

Portable Impedance Meter System Type 9737 delivers state‐of‐the‐art normal incidence impedance measurements for the aerospace industry.

Description

USE SCENARIOS

  • Quality assurance checks of aircraft engine nacelle liners on the production line
  • Measuring acoustic properties of aircraft interiors and cabin trim materials, such as attenuation and transmission loss
  • Evaluating sound insulation material installations in wind tunnels for aerospace or automotive research
  • Standard coupon tests using material samples to establish transmission loss, such as for automotive sound deadening materials

CAPABILITIES

  • Up to 155 dB SPL
  • 29 mm inner diameter tube, sized for optimum performance between 500 Hz and 6400 Hz, can be combined with optional wider tubes for measurements down to 50 Hz
  • Measurements on complex or composite materials, and orientation-sensitive materials
  • Measurement with broadband, pure-tone, or user-defined source
  • Calculation of non-linear resistance variation with acoustic velocity
  • Option to loop on increasing OASPL or Pure Tone SPL
  • In-tube sample holder for flanged tube correction routine

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