1/4″ Prepolarized Free-Field Microphone GRAS 40BE-FV 4Hz~80kHz

Introduction

• It is a high-precision condenser microphone made according to IEC 61094-4 requirements. Its dynamic range makes it suitable for high-frequency or high-level measurements, as well as acoustic transient measurements. It is extremely robust and reliable and can measure sound pressure levels up to 168 dB in the range of 4 Hz to 100 kHz.
• 40BE-FV is individually factory-calibrated and delivered with a calibration chart stating its specific open-circuit sensitivity and pressure frequency response.

Typical applications and use

• The 40BE-FV is ideal for sound measurements at very high frequencies and levels, as well as acoustic transient measurements. It is suitable for general purpose measurements in open acoustic fields.

Compatibility

• The 40BE-FV requires a standardized 1/2″ or 1/4″ CCP preamplifier and an input module that supports this technology with a BNC, SMB, or Microdot connector.

System verification

• For daily verification and check of your measurement setup, we recommend using a calibrator like GRAS 42AG Sound Level Calibrator.
• For proper sensitivity calibration, we recommend using a pistonphone like GRAS 42AP Intelligent Pistonphone.