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MK 202 E 1/2"
measuring microphone capsule

Ultrasonic USB measurement microphone MK 202 E + iSV1611

The 1/2” measuring microphone capsule MK 202 E is designed for acoustic measurements in
research, development and industry and is also used in building acoustics and audiology, among other things.

  • Frequency range 10 Hz to 40 kHz
  • free field
  • Sound pressure level up to 158 dB
  • 22dBA to 158dB
  • pre-polarized 

The measurement microphone capsule has a fixed charge carrier layer (backelectret) to provide the polarization voltage.

The careful construction and the constructive concept of the microphone capsules guarantee a high temporal constancy of the electro-acoustic parameters.

The internationally common thread type (60 UNS) for connecting the microphone capsule allows interchangeability with other 1/2” microphone capsules and enables connection to all suitable calibration and measuring devices.

1/2" USB free field
microphone class 1 WS2F

USB measurement microphone preamplifier ultrasonic application

The iSV1611 digital USB microphone preamplifier is suitable for all common pre-polarized 1/2” measurement microphone capsules.

The thread type 60 UNS allows the combination of different microphone capsule manufacturers depending on the application.

For ultrasonic applications we offer the MK 202 E from Microtech Gefell GmbH.

MK 202 E PDF data sheet

Ultrasonic USB Microphone Price: 1215  € excl. VAT
MK 202 E + iSV1611 + NVH Analyzer Lite Price: 1415  € plus VAT

Specifications of the
ultrasonic microphone capsule

Model
MK 202 E
Diameter
1/2″
Frequency Range
10 ~ 40 kHz (- 3 dB)
Responce Type
Free field
Electrode Forming Voltage
0 V
Sensitivity (dB re 20 μPa)
14mV/Pa (±3dB)
Capacitance at 250 Hz
18 pF
Maximum Sound Pressure Level
158 dB
Intrinsinc Noise Level
22 dB (A)
Operating Temperature Range
-50℃~+100℃
Operating Humidity Range
up to 70 °C, 90 %
Temperature Characteristics
<0.01dB/K
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 14.2 mm
Weight
8.5 gram

Digital 1/2" USB Microphone Preamplier
Specifications

Model
USB Microphone
Preamplifier
Signal Amplitude ref. 50mV @ 1kHz
Frequency Response
Frequency Sampling 192 kHz
1Hz~20Hz, Error <3.0dB
20Hz~20kHz, Error<0.3dB
20kHz~80kHz, Error<3.0dB
Electrical signal
noise background
Ch.1 (<13dBA, <26dBZ)
Ch.2 (<50dBA, <63dBZ)
THD Input 1kHz, 50mV, A weighting
<0.1%
Overload Indicator
1kHz (THD<3%)
Ch.1 (>101.9dB)
Ch.2 (>140dB)
Amplitude accuracy
Input 31.6mV, 1kHz, 90.0dB
Error <0.2dB
Dimensions
1/2″ Outer diameter
of protector cover
Ф 20 × 165 mm
φ 13.2mm
Weight
<96 g (cable not included)
Operating Temperature
-20°C ~ + 60°C
Humidity
25 %~ 90 %(RH)
Atmospheric Pressure
65 kPa~108 kPa
Connector Type
USB2.0
Microphone Thread
11.7 mm-60 UNS

NVH Analyzer Lite
Price 440 € + VAT

Measurement microphone software for professional use in education, development and industry.

  • Microphone calibration with sound calibrator, or input of microphone sensitivity.
  • According to IEC 61672-1 weighting filters A, C and Z | time weighting: ‘Fast’, ‘Slow’, ‘Impulse’.
  • Demonstration of the software with USB measurement microphone
  • Calibration with microphone calibrator Svantek SV30A .

USB Measuring Microphone Software

 

NVH Analyzer Lite functions

  • FFT block size 101 to 51201
  • FFT line resolution 0.366 Hz @ 48 kHz / 51201
  • FFT averaging linear, peak hold
  • Sum level Band limit – adjustable
  • Weighting Slow, Fast, Pulse
  • Weighting filters Lin, A, C
  • High-pass- Low-pass filter adjustable
  • FFT T-AVG
  • Time domain sound level
  • Time domain sound level A-filter
  • 1/3 octave spectrum
  • 1/3 octave T-AVG

Listening to the measurement data via the PC speaker after recording is possible.

Here more information about NVH Analyzer Lite

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