Ultrasonic microphone capsule MK 301 E is designed for acoustic measurements in research, development and industry and is also used in building acoustics and audiometry, among other things.
The measuring microphone capsule MK 301 is suitable for class 1 sound level meters according to IEC 61672.
- WS3F according to IEC 61094-4
- Frequency response 5 Hz to 100 kHz
- Sensitivity 3,5 mV/ Pa
- IEPE 4 – 20 mA / 18 V – 30 V
- Free Field
- Sound pressure level up to 168 dB
- Range 35dBA to 168dB
- Pre-polarized
- MP30-Ultra
- Price: € 1715
MK 301 E | WS3F according to IEC 61094-4 |
|---|---|
Diameter | 1/4″ |
Frequency Range | 5 Hz … 100 kHz (± 2 dB) |
Responce Type | Capacitive pressure transducer |
Electrode Forming Voltage | 0 V |
Sensitivity (dB re 20 μPa) | 3.5 mV/Pa (± 3 dB) |
Capacitance at 1 kHz | 4.5 pF |
Max. SPL for THD ≤ 3 % at 1 kHz | 168 dB peak |
Intrinsinc Noise Level | 36 dB (A) |
Operating Temperature Range | -20 °C ～ +100 °C |
Operating Humidity Range | 25 % ～ 90 %(RH) |
Storage Humidity Range | 25 % ～ 90 %(RH) |
Venting | Rear |
Outer Dimensions with protection grid | Ф 7 mm x 9.7 mm ± 0,02 mm |
Weight | 2 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 |
