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Infrasound Microphone

Low Frequency IEPE Measurement Microphone Industrial Grade

MP30-Infra

Infrasound Microphone

Class 1 – WS2F – DIN IEC 61094-4

The 1/2″ measurement microphone MP30-Infra makes it possible to use a high-quality, pre-polarized measurement microphone capsule MK 222 E on measurement systems with IEPE supply. Typical applications include low-frequency measurements.
 
The MP30 preamplifier is designed with a frequency response of 0.1 Hz to 200 kHz and can be fitted with a microphone capsule suitable for the application.
 
The MI-MKAL microphone holder is recommended for mounting the microphone. The use of 1/2″ measuring microphone capsule accessories, such as windscreens etc., is possible without any problems.
 
The measuring microphone can be calibrated with the sound calibrator 4010, CA 111 or with other suitable sound pressure calibrators.
 
  • Sensitivity 50 mv/Pa
  • IEPE constant current supply 2-20 mA
  • Directional characteristic: omnidirectional
  • Frequency response: 0.5 Hz – 20 kHz (± 2 dB)
  • 0.5 Hz – 3.5 Hz: ± 2 dB
  • 3.5 Hz – 4 kHz: ± 0.5 dB
  • 4 kHz – 20 kHz: ± 2 dB
  • Acoustic noise floor 15 dB A-weighted
  • Measuring range 15 dB(A) to SPL peak (5% dist.) 135 dB
MK 222 E Microphone Capsule
IEC 61094-4 Type WS2F
Diameter
1/2″
Frequency Range
0.5 Hz ~ 20 kHz (±2 dB)
Responce Type
Free field
Electrode Forming Voltage
0 V
Sensitivity (dB re 20 μPa)
50mV/Pa (±1.5dB)
Capacitance at 250 Hz
18 pF
Maximum Sound Pressure Level
135 dB
Intrinsinc Noise Level
15 dB (A)
Operating Temperature Range
10℃~+ 50℃
Operating Humidity Range
up to 70 °C, 90 %
Temperature Characteristics
< 0.015 dB/°C
Humidity Characteristics
0.001 %(RH)
Aging Drift
0.2 dB/Year
Storage Temperature Range
-20 °C ~ +60 °C
Storage Humidity Range
25 % ~ 90 %(RH)
Venting
rear vented
Outer Dimensions
Ф 13.2 mm x 10.9 mm
Weight
8.3 gram
MP30
Preamplifier
Frequency Response (re. 250 Hz)
0.1 Hz ~ 10 Hz ± 3 dB
10 Hz ~ 20 kHz ± 0.1 dB
10 Hz ~ 200 kHz ± 0.2 dB
Gain
0.04 dB
Intrinsic Noise
(20Hz ~ 20kHz)
< 5 μV A-weighting
Distortion (THD) @1kHz 1 V
< 0.1%
Output Impedance
<50Ω
Max. Output Voltage
6.5 Volt RMS @ 21 Volt IEPE DC Offset
IEPE Power Voltage
18 V ~ 30 V | Bias : 12.5 Volt
IEPE Current
2 mA ~ 20 mA
Polarization Voltage
0 V
Dimensions
Ф 12.7mm × 70 mm
Weight
< 20 g (cable not included)
Operating Temperature
– 20°C ~ + 60°C
Humidity
25 %~ 90 %(RH)
Atmospheric Pressure
65 kPa~108 kPa
Connector Type
BNC
Thread for Microphone
Capsule Mounting
11.7 mm-60 UNS
Class 1 Infrasound Microphone
Model
1/2″ IEPE Microphone Sytems Class 1 WS2F & WS2D
Price
MicCAL

Microphone Calibration Fee for all ROGA Instruments microphones.
After successful factory calibration, the microphone is returned to the customer with our factory calibration certificate.

155 $
WS-RG-80

1/2″ measurement microphone wind screen Ø 80 mm diameter

38 $
MP30

MP30 Microphone Set
Prepolarised Microphone Capsule
with Microphone Preamplifier
1/2″ IEPE Free-field microphone
Sensitivity 40 mV/Pa
constant current supply 2- 20mA
BNC connection
Polar pattern: omnidirectional
Frequency response
4 Hz ~ 10 Hz ± 1.5 dB
10 Hz – 4 kHz: ± 0.5 dB
4 kHz – 20 kHz: ± 2.5 dB
free field, corresponds to class 1
including individual Calibration
sheet (sensitivity & frequency response)
Measuring Range: 16 dB(A) to 135 dB
HS Code 85181000

854 $
MP30-231

MP30-231 Microphone Set
Prepolarised Microphone Capsule
with Microphone Preamplifier
1/2″ IEPE difussefield microphone
Sensitivity 50 mV/Pa
constant current supply 2- 20mA
BNC connection
Polar pattern: omnidirectional
Frequency response
3.5 Hz – 16 kHz: ± 2 dB
including individual Calibration
sheet (sensitivity & frequency response)
Measuring Range: 15 dB(A) to 156 dB
HS Code 85181000

1380 $
MP30-Infra

1/2″ microphone for infrasonic low frequency applications
WS2F according to IEC 61094-4
Free field
0.5 Hz to 20 kHz
15 dBA to 135 dB
pre-polarized
1/2″ microphone preamplifier MP30 included
HS Code 85181000

1446 $
MP40

MP40 Set
1/2 ” condenser microphone
WS2F (DIN IEC 61094-4)
Frequency range:
1.5 Hz – 3.5 Hz: ± 1.5 dB
3.5 Hz – 4 kHz: ± 0.5 dB
4 kHz – 20 kHz: ± 1.5 dB
Free-field
Including preamplifier PA-01
Dynamic range 16 dB(A) -135dB
IEPE Constant Current powered
Sensitivity: 50 mV / Pa
Download MP-40 PDF
HS Code 85181000

1236 $
MM210

1/2″ microphone for general applications
WS2F according to IEC 61094-4
Free field
50 mV/Pa
3.5 Hz to 20 kHz
15 dBA to 146 dB
pre-polarized
1/2″ microphone preamplifier MV210 included
HS Code 85181000

1250 $
MMS 214

Low noise microphone MMS 214 has a particularly low inherent noise level and is designed for acoustic measurements of low sound pressure levels close to the threshold of human hearing
HS Code 85181000  

2950 $
1/2″
Microphone
capsules

1/2” measuring microphone capsules with different properties. From infrasound to ultrasonic models
HS Code 85181000

Model
USB Microphone Systems Class 1 WS2F
Price
FairTECH
ROGA Instruments products are free from planned obsolescence, technically accessible, durable and repairable.
iSV1611-Infra

1/2″ USB microphone for infrasound applications
WS2F according to IEC 61094-4
Free field
1 Hz to 20 kHz
15 dBA to 135 dB
pre-polarized
1/2″ USB microphone preamplifier iSV1611 included
HS Code 85181000

1625 $
iSV1611-Ultra

1/4″ USB microphone for ultrasonic applications
MK 301 E Microphone Capsule
WS3F according to IEC 61094-4
Free field
5 Hz to 80 kHz
35 dBA to 168 dB
pre-polarized
1/2″ USB microphone preamplifier iSV1611 included
HS Code 85181000

1715 $