Ultrasound microphones are a specialized type of microphone that is specifically designed for detecting sounds in the frequency range of up to 100 kHz and up to 168 dB sound pressure level.
These microphones are commonly used for a variety of applications, such as measuring sound in industrial settings, monitoring the health of animals, and testing the performance of audio equipment.
The IEC 61094-4 WS3F is a globally recognized standard for ultrasound microphones, which outlines the specific performance parameters that these microphones must meet in order to be considered accurate and reliable.
These include factors such as sensitivity, frequency response, dynamic range, and noise floor.
If you’re looking for an ultrasound microphone that meets these standards, there are a variety of options available on the market today.
When selecting an ultrasound microphone, it’s important to consider the specific requirements of your application in order to choose the best possible option for your needs.
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5 Hz - 30 kHz
IEPE analog
RG-50
1/4″ IEPE microphone
WS3F acc to IEC 61094-5
Free field
5Hz to 30 kHz
up to 130 dB
with IEPE preamp
Price: 512 € + VAT
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20 Hz - 100 kHz
IEPE analog
MM310
1/4″ microphone
WS3F acc to IEC 61094-4
Free field
20Hz to 100 kHz
35 dBA to 158dB
Pre-polarized
Price: 1360 € + VAT
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5 Hz - 100 kHz
IEPE analog
MP30-Ultra
1/4″ microphone
WS3F acc to IEC 61094-4
Free field
5Hz to 100 kHz
35 dBA to 168dB
Pre-polarized
Price: 1715 € + VAT
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5 Hz - 80 kHz
USB Digital
iSV1611-Ultra
1/4″ microphone
WS3F acc to IEC 61094-4
Free field
5Hz to 80 kHz
35 dBA to 168dB
Pre-polarized
Ultrasound Microphone Set
The 1/4” measuring 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.
WS3F according to IEC 61094-4
Frequency response 20 Hz to 100 kHz with MM310 microphone amplifier
Sensitivity 3,5 mV/ Pa
IEPE Constant Current Power 4 – 20 mA / 18V – 30V
Free Field
Sound pressure level up to 168 dB
Range 35dBA to 158dB
Pre-polarized
The measuring microphone capsule MK 301 is suitable for class 1 sound level meters according to IEC 61672.
Ultrasound Microphone Set
The 1/4” measuring 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.
WS3F according to IEC 61094-4
Frequency response 5 Hz to 100 kHz with MP30 microphone amplifier
Sensitivity 3,5 mV/ Pa
IEPE Constant Current Power 4 – 20 mA / 18V – 30V
Free Field
Sound pressure level up to 168 dB
Range 35dBA to 168dB
Pre-polarized
The measuring microphone capsule MK 301 is suitable for class 1 sound level meters according to IEC 61672.
Microphone Frequency Response 5 Hz to 100 kHz
Ultrasound Microphone Capsule MK 301 E
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 | -0.1 dB |
Intrinsic Noise (20Hz ~ 20kHz) | <5 μV A-weighting |
Distortion(THD) @1kHz
1 V | <0.1% |
Output Impedance | ＜50Ω |
Max. Output Voltage | 5 V RMS |
IEPE Power Voltage | 18 V ~ 30 V |
IEPE Current | 2 mA ~ 20 mA |
Polarization Voltage | 0 V |
Dimensions | Ф12.7mm × 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 |
