Measurement microphone 4971

prepolarizedfor high temperatures1/2"

Overview
High-temperature pressure-field microphone TYPE 4971, designed for accurate acoustic and pressure-field measurements in extreme environments with an operating capability up to 125°C.

Key information

• Product family: 4971
• Product type: High-temperature pressure-field microphone / microphone set
• Primary use: Precise acoustic and pressure-field testing in elevated-temperature environments
• Maximum operating temperature (declared): up to 125°C
• Manufacturer: Brüel & Kjær (HBK)

Applications

• Acoustic testing in industrial high-temperature environments (e.g., furnaces, ovens, engine compartments)
• Pressure-field measurements in lab and field where ambient temperatures are elevated
• Material tests and quality control under thermal stress
• Acoustic R&D and component testing at elevated temperatures

Technical specifications

• Model / designation: TYPE 4971 (Family 4971)
• Category: Pressure-field microphone (part of microphone sets)
• Operating temperature range: up to 125°C (high-temperature design)
• Primary function: Accurate acoustic/pressure-field measurements in extreme conditions
• Manufacturer: Brüel & Kjær (HBK)