The IEPE microphone MI17 is a free-field microphone with integrated electronics that is frequently utilized in scientific research applications.
To provide optimal accuracy, the microphone is supplied with tight tolerances of ±0.5 dB and has a transmission factor of 50 mV/Pa.
The standard IEPE constant current source is set to 4 mA.
Coaxial cables are used as feed lines, and the standard microphone configuration includes BNC connectors, which are also optionally available as TNC variants.
MI17
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Price: 543 $
38 $ Shipping Price
Ideal Applications include the measurement of:
- Product noise
- Environmental noise
- Acoustic modes
- Sound power
1/4″ Microphone Class 1
Technical data: | |
|---|---|
Transducer type | Electrete pressure transducer |
Class 1 | WS3F according to IEC 61094-5 |
Polar pattern | Omni |
Frequency range | 20 Hz – 20 kHz (meets Type 1 free field limits) |
Sensitivity @ 1 kHz | 50 mV/Pa ± 0.5 dB |
Max. SPL for 1% THD at 1 kHz | 130 dB Peak |
Inherent noise | 26 dB(A) |
Output impedance | <50 Ohm |
Current consumption | 2-6 mA |
Power supply | 18 V DC to 30 V DC |
Bias: | 12.5 Volt |
Temperature range, operation | -20°C to +80°C |
Heat resistant | up to 110 °C |
Diameter | 7 mm ± 0.05 mm |
Length | 93 mm |
Weight | 23 g |
Connector | BNC (fem.) |
Identical MI17 models
- AVM MI 17
- FALM MF172
- STAC MC20
- MC230
MI17SW Splash Proof IP55
The MI17SW microphone is designed with splash water protection so that it can be used for measurement campaigns in wet or humid weather.
A water-repellent sealing of the membrane at the sound inlet, prevents the damage of the electret capsule by water.
The IEPE microphones with splash water protection, also MI21 and RG-50SW, have proven themselves, among others, at brake manufacturers, who mount the microphone in the wheel housing to record disturbing brake noises.
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Price: 588 $
38 $ Shipping Price
Model | 1/4″ IEPE Microphone Sets | Price |
|---|---|---|
 | ROGA Instruments products are free from planned obsolescence, technically accessible, durable and repairable. | |
POM-MI1921 | MI19 and MI21 microphone sleeve adapter from 1/4″ inner diameter to 1/2″ outer diameter. POM material to ensure galvanic isolation to prevent ground and earth loops | 24 $ |
POM-MI17RG50 | MI17 and RG-50 microphone sleeve adapter to 1/2″ outer diameter. POM material to ensure galvanic isolation to prevent ground and ground loops | 24 $ |
MicCAL | Microphone Calibration Fee for ROGA Instruments microphones MI15 | MI17 | MI18 | MI19 | MI21| RG-50 | MP30| MP40 After successful factory calibration, the microphone is returned to the customer with our factory calibration certificate. | 155 $ |
MicREP | Microphone Repair Fee for ROGA Instruments microphones MI15 | MI17 | MI18 | MI19 | MI21| RG-50 After successful repair and factory calibration, the microphone is returned to the customer with our factory calibration certificate. | 225 $ |
WS-RG-40 | 1/4″ microphone windscreen Ø 40 mm | 38 $ |
MI19 | MI19; ¼” electret microphone for industrial applications Sensitivity 50 mV/Pa Constant current supply 2-8 mA BNC connector Polar pattern: omnidirectional Class 1 frequency response in accordance with IEC 61672 20 Hz – 20 kHz calibration sheet included Sensitivity & Frequency Response Inherent noise 27 dBA SPL Max 130 dB HS Code 85181000 | 385 $ |
MI19SW | IP55 splash water resistant ¼” electret microphone for industrial applications Sensitivity 50 mV/Pa Constant current supply 2-8 mA BNC connector Polar pattern: omnidirectional Class 1 frequency response in accordance with IEC 61672 20 Hz – 20 kHz calibration sheet included Sensitivity & Frequency Response Inherent noise 27 dBA SPL Max 130 dB HS Code 85181000 | 455 $ |
RG-50HL | High SPL Microphone e.g. shooting noise WS3F Free-field IEC 61094-5 Total length: 95 mm Sensitivity 10 mV/Pa constant current Supply 2-20 mA BNC connection Polar pattern: omnidirectional Frequency response: 5 Hz – 4 kHz: ± 1 dB 4 kHz – 30 kHz: ± 1.5 dB factory calibration certificate included measuring range up to SPL 144 dBRMS / 150 dB peak HS Code 85181000 | 1275 $ |
MK342 E + MV310 Set | 1/4″ microphone with constant pressure frequency response WS3P according to IEC 61094-4 Pressure 3.5Hz to 70kHz 60dB(A) to 186dB pre-polarized HS Code 85181000 | 1480 $ |
MI21 | MI21; ¼” electret condenser microphone Splash Water Proof IP55 Sensitivity 50 mV/Pa / ± 1.0 dB CCP IEPE supply 2-6 mA BNC connector Polar pattern: omnidirectional Frequency response IEC 61094-5 20 Hz – 4 kHz: ± 0.5 dB 4 kHz – 20 kHz: ± 1.5 dB corresponds to class 1 Calibration sheet included Sensitivity & Frequency Response Inherent noise 26 dB(A) SPL Max 130 dB HS Code 85181000 | 588 $ |
MI17 | MI17; 1/4″ IEPE microphone, Sensitivity 50 mV/Pa, constant current supply 2-8 mA BNC connection Frequency response: Class 1 – IEC 61094-5 20 Hz – 4 kHz: ± 0.5 dB 4 kHz – 20 kHz: ± 1.5 dB free field, corresponds to class 1 including individual Calibration sheet (sensitivity & frequency response) Inherent Noise 26 dB (A) Download MI17 PDF HS Code 85181000 | 543 $
|
MI17SW | MI 17SW; 1/4″ IEPE microphone Splash Water Proof IP55 Sensitivity 50 mV/Pa, constant current supply 2-8 mA BNC connection Frequency response: 20 Hz – 4 kHz: ± 0.5 dB 4 kHz – 20 kHz: ± 1.5 dB free field, corresponds to class 1 IEC 61094-5 including individual Calibration sheet (sensitivity & frequency response) Inherent Noise 26 dB (A) HS Code 85181000 | 588 $
|
RG-50 | RG-50; 1/4″ IEPE free field microphone Sensitivity 50 mV/Pa constant current supply 2- 20mA BNC connection Frequency response 5 Hz – 4 kHz: ± 0.5 dB 4 kHz – 30 kHz: ± 1.5 dB free field, corresponds to class 1 IEC 61094-5 including individual Calibration sheet (sensitivity & frequency response) Inherent Noise 26 dB (A) HS Code 85181000 | 543 $ |
RG-50SW | RG-50SW; 1/4″ IEPE Free-field microphone Sensitivity 50 mV / Pa constant current supply 2- 20mA BNC connection Splash Water Proof IP55 Frequency response 5 Hz – 4 kHz: ± 0.5 dB 4 kHz – 30 kHz: ± 1.5 dB free field, corresponds to class 1 IEC 61094-5 including individual Calibration sheet (sensitivity & frequency response) Inherent Noise 26 dB (A) HS Code 85181000 | 588 $ |
