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.
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.