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Measurement microphone 4988
prepolarizedwith built-in preamplifier1/4"

Measurement microphone - 4988 - Brüel & Kjaer - prepolarized / with built-in preamplifier / 1/4"
Measurement microphone - 4988 - Brüel & Kjaer - prepolarized / with built-in preamplifier / 1/4"
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Characteristics

Applications
measurement
Technology
prepolarized
Other characteristics
1/4", with built-in preamplifier

Description

Product overview
The Family 4988 is a pre-polarized pressure-field microphone with an integrated CCLD preamplifier, developed for reliable and repeatable acoustic measurements in laboratory and field environments.

Key features
  • Pre-polarized pressure-field microphone design
  • Integrated CCLD (constant current line drive) preamplifier for stable signal conditioning
  • Precision-engineered for repeatable acoustic measurements
  • Compatible with standard measurement chains and calibrations


Applications
  • Laboratory acoustic measurements and standards testing
  • Field noise surveys and environmental sound monitoring
  • Calibration and verification of sound measurement systems


Technical specifications
  • Model family: Family 4988
  • Microphone type: Pre-polarized pressure-field microphone
  • Preamplifier: CCLD (constant current line drive), integrated
  • Primary application: Acoustic measurements and sound testing
  • Manufacturer / Brand: HBK

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