video corpo

measurement microphone / prepolarized / pressure / 1/4"
4944-A Bruel and Kjaer

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Characteristics

  • Applications:

    measurement

  • Technology:

    prepolarized

  • Other characteristics:

    pressure, 1/4"

Description

Designed to be used in small closed couplers, close to hard reflective surfaces or flushmounted.



Type 4944-A is designed to be used in small closed couplers, close to hard reflective surfaces or flushmounted. It is a ¼" prepolarized pressure-field microphones laser welded to ¼" CCLD preamplifiers. The preamplifier connects to CCLD input conditioning and supports IEEEP1451.4V 0.9 TEDS (Transducer Electronic Data Sheet).
USE SCENARIOS

High-level measurements
High-frequency measurements
Flush mounting
Arrays in wind tunnels

DESIGN AND ROBUSTNESS

The shape of the microphone front ensures excellent microphone performance when flush-mounted. The laser-welded diaphragm on the microphone housing ensures that the sensitivity is resistant to rough handling during flush mounting.
MICROPHONE DATA CD

The microphone is supplied with a mini-CD. This mini-CD carries all individual calibration data as well as random-incidence and free-field corrections. The influence of ¼" Nose Cone UA-0385 is also available.
CALIBRATION

The sensitivity can be calibrated at 250Hz using Pistonphone Type 4228 with ¼" Adaptor DP-0775. The pressure-field response can be measured using Actuator UA-0033 with Adaptor DB-0264. The pressure-field response is equal to the actuator response.

Other Bruel and Kjaer products

Acoustic Transducers