Special microphones

Special microphones are often required for applications where there are particular requirements regarding the methods of measurements and configurations.
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 163
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 163 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 163 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 163 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....

GRAS 50VI-1 Vector intensity probe

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

GRAS 50VI-1 Vector intensity probe

The GRAS 50VI-1 Vector Intensity Probe is a flexible and adjustable, two or three-dimensional sound-intensity probe. The probe handle has marked inputs for 3 pairs of preamplifiers (a pair for each of the mutually-perpendicular directions) and a 24-pin LEMO output socket at its base for connecting i..

GRAS 67AD ø400 mm CCP Ground Array Microphone Kit

Freq range: 3.15 Hz to 10 kHz
Dyn range: 18 dB(A) to 138 dB
Sensitivity: 50 mV/Pa

GRAS 67AD ø400 mm CCP Ground Array Microphone Kit

The GRAS 67AD ½" CCP Ground Array Microphone Set consists of a ½” precision pressure microphone with built-in CCP preamplifier, a ø400 mm mounting plate, and an adapter for a BNC cable...

GRAS 67AX ø400 mm CCP Ground Array Microphone Kit

Freq range: 3.15 Hz to 20 kHz
Dyn range: 22 dB(A) to 150 dB
Sensitivity: 12.5 mV/Pa

GRAS 67AX ø400 mm CCP Ground Array Microphone Kit

The GRAS 67AX ½" CCP Ground Array Microphone Set consists of a ½” precision pressure microphone with built-in CCP preamplifier, a ø400 mm mounting plate, and an adapter for a BNC cable...

GRAS 67SB Blast Probe Microphone according to ANSI S12.42

Freq range: 10 Hz to 20 kHz
Dyn range: 44 dB(A) to 174 dB

GRAS 67SB Blast Probe Microphone according to ANSI S12.42

The GRAS 67SB Blast Probe is designed as a reference microphone for impulse measurements according to the ANSI/ASA S12.42 standard...

GRAS 67TS Turbulence Screen Kit

Turb. att.: Up to 25 dB* Turb. speed: Up to Mach 0.2 Freq. range (turbulence) 500 Hz - 10 kHz* Acoustic att.: Less than 3 dB Directivity: ± 60 Deg *Depending on flow-speed

GRAS 67TS Turbulence Screen Kit

The GRAS 67TS Turbulence Screen Kit is designed for aeroacoustic testing in solid-walled wind tunnels. The hydrodynamic component of turbulence is attenuated up to 25 dB. Thereby the acoustic signals of interest can be identified and diagnosed with a reliable resolution...

GRAS 67TS-1-CL Turbulence Screen Kit with Flush-mount Microphone

Turb. att.: Up to 25 dB* Turb. speed: Up to Mach 0.2 Turb. suppr. freq. range: 500 Hz - 10 kHz* Acoustic att.: Less than 3 dB Directivity: ± 60 Deg Freq. range (acoustic) 100 Hz - 70 kHz Dyn.range 44 dB(A) - 166 dB *Depending on flow-speed

GRAS 67TS-1-CL Turbulence Screen Kit with Flush-mount Microphone

The GRAS 67TS-1-CL Turbulence Screen Kit is designed for aeroacoustic testing in solid-walled wind tunnels. The hydrodynamic component of turbulence is attenuated up to 25 dB. Thereby the acoustic signals of interest can be identified and diagnosed with a reliable resolution..