arrow_back_ios

Main Menu

See All Acoustic End-of-Line Test Systems See All DAQ and instruments See All Electroacoustics See All Software See All Transducers See All Vibration Testing Equipment See All Academy See All Resource Center See All Applications See All Industries See All Insights See All Services See All Support See All Our Business See All Our History See All Our Sustainability Commitment See All Global Presence
arrow_back_ios

Main Menu

See All Actuators See All Combustion Engines See All Durability See All eDrive See All Production Testing Sensors See All Transmission & Gearboxes See All Turbo Charger See All DAQ Systems See All High Precision and Calibration Systems See All Industrial electronics See All Power Analyser See All S&V Hand-held devices See All S&V Signal conditioner See All Test Solutions See All DAQ Software See All Drivers & API See All nCode - Durability and Fatigue Analysis See All ReliaSoft - Reliability Analysis and Management See All Test Data Management See All Utility See All Vibration Control See All Acoustic See All Current / voltage See All Displacement See All Load Cells See All Pressure See All Strain Gauges See All Torque See All Vibration See All LDS Shaker Systems See All Power Amplifiers See All Vibration Controllers See All Accessories for Vibration Testing Equipment See All Training Courses See All Whitepapers See All Acoustics See All Asset & Process Monitoring See All Custom Sensors See All Data Acquisition & Analysis See All Durability & Fatigue See All Electric Power Testing See All NVH See All Reliability See All Smart Sensors See All Vibration See All Weighing See All Automotive & Ground Transportation See All Calibration See All Installation, Maintenance & Repair See All Support Brüel & Kjær See All Release Notes See All Compliance See All Our People
arrow_back_ios

Main Menu

See All CANHEAD See All GenHS See All LAN-XI See All MGCplus See All Optical Interrogators See All QuantumX See All SomatXR See All Accessories See All Accessories See All BK Connect / Pulse See All API See All Microphone Sets See All Microphone Cartridges See All Acoustic Calibrators See All Special Microphones See All Microphone Pre-amplifiers See All Sound Sources See All Accessories for acoustic transducers See All Experimental testing See All Transducer Manufacturing (OEM) See All Accessories See All Non-rotating (calibration) See All Rotating See All CCLD (IEPE) accelerometers See All Charge Accelerometers See All Impulse hammers / impedance heads See All Cables See All Accessories See All Electroacoustics See All Noise Source Identification See All Environmental Noise See All Sound Power and Sound Pressure See All Noise Certification See All Industrial Process Control See All Structural Health Monitoring See All Electrical Devices Testing See All Electrical Systems Testing See All Grid Testing See All High-Voltage Testing See All Vibration Testing with Electrodynamic Shakers See All Structural Dynamics See All Machine Analysis and Diagnostics See All Calibration Services for Transducers See All Calibration Services for Handheld Instruments See All Calibration Services for Instruments & DAQ See All On-Site Calibration See All Resources See All Software License Management

FAMILY 4988

1/4" PRESSURE-FIELD MICROPHONE WITH CCLD PREAMPLIFIER, PREPOLARIZED

Pressure-field microphone for measurements in small, closed couplers, close to hard reflective surfaces, or flush-mounted, with a frequency response of 20 Hz to 20 kHz.

img

FAMILY 4988

expand_more
chevron_left
chevron_right

Microphone Type 4988-A is a 1/4" prepolarized pressure-field microphone laser welded to 1/4" CCLD preamplifier. The preamplifier connects to CCLD input conditioning and supports IEEEP1451.4 V1.0  Transducer Electronic Data Sheet (TEDS).

It is an all-titanium design that ensures maximum resistance to corrosion and minimum sensitivity to magnetic fields.

  • Measurements requiring an EN/IEC 61326 EMC compliant product
  • Measurements very close to sound ports of an audio device (near field)
  • Measurements in small acoustic chambers and test boxes where reflections occur
  • Measurements in unpredictable sound field conditions
  • Flush mounting
  • Production tests systems
  • Inside an acoustic coupler (pressure field)
  • Reference microphone for tuning of microphone arrays and active noise-cancelling systems

File

Description

Type

Languages

Size

4988-A – Data Sheet (bp0074)

¼-inch Pressure-field TEDS Microphone Type 4988-A

Technical Document English 634 KB
FAMILY 4988
Standard IEC 61094
Sound field Pressure field
Polarization CCLD
Sensitivity [mV/Pa] 11 mV/Pa
Lower frequency [Hz] 20 Hz
Higher frequency [Hz] 20 kHz
Lower dynamic range [dB] 29 dB
Higher dynamic range [dB] 146 dB
Diameter 1/4 inch
Venting Rear
Minimum Temperature [°C] -20 °C
Maximum Temperature [°C] 80 °C
Minimum Temperature [°F] -4 °F
Maximum Temperature [°F] 176 °F
Output signal (connectivity) Passive