The ¼” condenser microphones MI15, MI17, MI19, RG-50 and MI21 are free-field types with integrated electronics. All types can be supplied with close tolerances (±0.5dB) with transfer factors between 25 and 100mV/Pa. Power is supplied by a constant current source IEPE (standard) with usually 4mA. Coaxial cables are used as feed lines. As a standard the microphones are equipped with BNC connectors and are also available with TNC connector.
The microphones should not be exposed to aggressive environmental conditions.
Type | MI15 | MI19 | RG-50 | MI17 | MI21 |
|---|---|---|---|---|---|
Sensitivity | 50 mV/Pa ± 0.5 dB | 50 mV/Pa ± 0.5 dB | 50 mV/Pa ± 0.5 dB | 50 mV/Pa ± 0.5 dB | 50 mV/Pa ± 0.5 dB |
Frequency response | 20Hz – 4kHz ± 0.5dB 4kHz – 20kHz ± 1.5 dB | 20Hz – 4kHz ± 0.5dB 4kHz – 20kHz ± 1.5 dB | 5Hz – 4kHz ± 0.5dB 4kHz – 20kHz ± 1.5 dB | 20Hz – 4kHz ± 0.5dB 4kHz – 20kHz ± 1.5 dB | 20Hz – 4kHz ± 0.5dB 4kHz – 20kHz ± 1.5 dB |
Inherent noise (lin: 20Hz-20kHz) (“A”- weighted) | approx. 30 dB (20 µPa) approx. 26 dB (20 µPa) | approx. 30 dB (20 µPa) approx. 26 dB (20 µPa) | approx. 30 dB (20 µPa) approx. 26 dB (20 µPa) | approx. 30 dB (20 µPa) approx. 26 dB (20 µPa) | approx. 30 dB (20 µPa) approx. 26 dB (20 µPa) |
SPL Peak (5% Dist.) | 130 dB | 130 dB | 130 dB | 130 dB | 130 dB |
Constant Current Supply | IEPE 2-8 mA | IEPE 2-8 mA | IEPE 2-20 mA | IEPE 2-8 mA | IEPE 2-8 mA |
Internal resistance | 50 Ω | 50 Ω | 50 Ω | 50 Ω | 50 Ω |
Dimensions Total length | 65 mm | 84 mm | 93 mm | 93 mm | 84 mm |
Tube diameter | 7 mm | 7 mm | 8 mm | 8 mm | 7 mm |
Connector | BNC (Ms/Ni) | BNC (Ms/Ni) | BNC (Ms/Ni) | BNC (Ms/Ni) | BNC (Ms/Ni) |
Weight | 15 Gram | 20 Gram | 23 Gram | 23 Gram | 20 Gram |
Material (housing) | stainless steel 1.4305 | stainless steel 1.4305 | stainless steel 1.4305 | stainless steel 1.4305 | stainless steel 1.4305 |
Scope of delivery | Calibration Certificate | Calibration Certificate WS-RG-40 Windscreen | Calibration Certificate WS-RG-40 Windscreen | Calibration Certificate WS-RG-40 Windscreen | Calibration Certificate WS-RG-40 Windscreen IP55 |
Options | WS-RG-30 Windscreen | SW IP55 Splash-Proof | SW IP55 Splash-Proof |
The USB microphone model iSV1611 is a digital microphone with USB interface, consisting of pre-polarized ½” electret measurement microphone capsule, preamplifier, 2 channel (stereo) ADC and USB interface, which can be used with apps on smartphone, tablet or PC.
PC, smartphone, or tablet receive the digitized 2 channel signal data via USB cable connected to iSV1611. The dual channel operation allows simultaneous measurement in the 16 -100 dB(A) and 56 – 140 dB(A) measurement range.
Price 618 € + VAT
With NVH Analyzer Lite 918 € + VAT.
Digital usb acceleration sensor with FFT Analyzer software
Price : 492 EUR + VAT
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