Special microphones

Special microphones are often required for applications where there are particular requirements regarding the methods of measurements and configurations.

GRAS special microphones are categorized as

GRAS 48LX-1 UTP Microphone, Medium Pressure

Freq range: 20 Hz to 40 kHz (±1 dB)
                      10 Hz to 70 kHz (±3 dB)
Dyn range: 54 dB(A) to 170 dB
Sensitivity: 0.6 mV/Pa (±3 dB)
Use: For aeroacoustic measurements

GRAS 48LX-1 UTP Microphone, Medium Pressure

48LX-1 is an Ultra-Thin Precision (UTP) surface microphone for aeroacoustic testing. It is a low-profile 1/4" CCP medium-pressure condenser microphone. The microphone is only 1 mm high and can, therefore, be mounted in air-flow without disturbing the sound field.  ..

GRAS 48LX-4 UTP Line-Array, 4 Channel, Medium Pressure

Freq range: 20 Hz to 20 kHz (±1 dB)
                      10 Hz to 70 kHz  (±3 dB)
Dyn range: 54 dB(A) to 170 dB
Sensitivity: 0.6 mV/Pa (±3 dB)
Channels: 4
Use: For aeroacoustic measurements

GRAS 48LX-4 UTP Line-Array, 4 Channel, Medium Pressure

48LX-4 is an Ultra-Thin Precision (UTP) surface microphone line-array for aeroacoustic testing. It consists of four low-profile 1/4" CCP medium-pressure condenser microphones. They are mounted with rubber fairings in a line array configuration on a flexible PCB. 48LX-4 is only 1.35 mm high and can, ..

GRAS 48LX-8 UTP Line-Array, 8 Channel, Medium Pressure

Freq range: 20 Hz to 20 kHz (±1 dB)
                      10 Hz to 70 kHz  (±3 dB)
Dyn range: 54 dB(A) to 170 dB
Sensitivity: 0.6 mV/Pa (±3 dB)
Use: For aeroacoustic measurements

GRAS 48LX-8 UTP Line-Array, 8 Channel, Medium Pressure

48LX-8 is an Ultra-Thin Precision (UTP) surface microphone line array for wind tunnel testing. It consists of 8 low-profile 1/4" CCP medium-pressure condenser microphones. They are mounted with rubber fairings in a line array configuration on a flexible PCB. 48LX-8 is only 1.35 mm high and can, ther..

GRAS 50AI-B 1/2" LEMO Intensity Probe

Freq range: Ref. IEC 61043 Class 1
Dyn range: 25 dB(A) to 152 dB
Sensitivity: 25 mV/Pa

GRAS 50AI-B 1/2" LEMO Intensity Probe

The GRAS 50AI-B Sound-intensity Probe builds on more than 20 years of theory and practical experience in sound-intensity measurements. It is adjustable, durable and fully complies with the requirements in IEC 61043, Electroacoustics- Instruments for the Measurement of Sound Intensity- Measureme..

GRAS 50AI-C 1/2" LEMO Intensity Probe

Freq range: Ref. IEC 61043 Class 1
Dyn range: 25 dB(A) to 152 dB
Sensitivity: 25 mV/Pa

GRAS 50AI-C 1/2" LEMO Intensity Probe

The GRAS 50AI-C Sound-intensity Probe builds on more than 20 years of theory and practical experience in sound-intensity measurements. It is adjustable, durable and fully complies with the requirements in IEC 61043, Electroacoustics- Instruments for the Measurement of Sound Intensity- Measureme..

GRAS 50AI-D 1/2" LEMO Intensity Probe

Freq range: Ref. IEC 61043 Class 1
Dyn range: 25 dB(A) to 152 dB
Sensitivity: 25 mV/Pa

GRAS 50AI-D 1/2" LEMO Intensity Probe

The GRAS 50AI-D Sound-intensity Probe builds on more than 20 years of theory and practical experience in sound-intensity measurements. It is adjustable, durable and fully complies with the requirements in IEC 61043, Electroacoustics- Instruments for the Measurement of Sound Intensity- Measureme..

GRAS 50AI-L 1/2" CCP Intensity Probe

Freq range: Ref. IEC 61043 Class 1
Dyn range: 25 dB(A) to 152 dB
Sensitivity: 12.5 mV/Pa

GRAS 50AI-L 1/2" CCP Intensity Probe

The GRAS 50AI-L 1/2" CCP Intensity Probe is a general purpose sound intensity probe with remote control and direct connection to LMS data acquisition modules with ICP inputs...

GRAS 50AI-LP 1/2" CCP Rugged Intensity Probe

Freq range: IEC 61043 Class 1
Dyn range: 25 dB(A) to 152 dB
Sensitivity: 12.5 mV/Pa

GRAS 50AI-LP 1/2" CCP Rugged Intensity Probe

The GRAS 50AI-LP 1/2" CCP Rugged Intensity Probe is an industrial sound intensity probe in a very robust design that makes it suitable for use in heavy industrial environment. The probe has remote control and direct connection to LMS data acquisition modules with ICP inputs...

GRAS 50GI CCP Intensity Probe

Freq range: Ref. IEC 61043 Class 1
Dyn range: 27 dB(A) to 146
Sensitivity: 12.5 mV/Pa

GRAS 50GI CCP Intensity Probe

GRAS 50GI is a sound intensity probe for direct connection to signal analyzers or data acqusition devices with IEPE inputs. The probe includes a pair of phase-matched prepolarized precision microphones which meet the requirements in IEC standard 61043 for a class-1 intensity probe. The small ru..

GRAS 50GI-P CCP Rugged Intensity Probe

Freq range: IEC 61043 Class 1
Dyn range: 27 dB(A) to 146 dB
Sensitivity: 12.5 mV/Pa

GRAS 50GI-P CCP Rugged Intensity Probe

Type 50GI-P is a sound intensity probe for direct connection to signal analyzers or data acqusition devices with IEPE inputs. The probe includes a pair of phase-matched prepolarized precision microphones which meet the requirements in IEC standard 61043 for a class-1 intensity probe...

GRAS 50GI-R CCP Intensity Probe with Remote Control

Freq range: IEC 61043 Class 1
Dyn range: 27 dB(A) to 146 dB
Sensitivity: 12.5 mV/pa

GRAS 50GI-R CCP Intensity Probe with Remote Control

The 50GI-R is a sound intensity probe for direct connection to signal analyzers or data acquisition devices with IEPE inputs. The probe includes a pair of phase-matched prepolarized precision microphones which meet the requirements in IEC standard 61043 for a class-1 intensity probe. The small rugge..

GRAS 50GI-RP CCP Rugged Intensity Probe

Freq range: IEC 61043 Class 1
Dyn range: 27 dB(A) to 146 dB
Sensitivity: 12.5 mV/Pa

GRAS 50GI-RP CCP Rugged Intensity Probe

Type 50GI-RP is a sound intensity probe for direct connection to signal analyzers or data acqusition devices with IEPE inputs. The probe includes a pair of phase-matched prepolarized precision microphones which meet the requirements in IEC standard 61043 for a class-1 intensity probe....