Description
Product Video
Features
Performance
Test Conditions: Temperature 23 ℃, Relative Humidity 50 %RH
Dimensions
Microphone Unit
From Sound Level Meters and Acoustic Imagers to Calibrators and sound level sensor for professional testing and research.
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AWA14404-S00E 1/2" Pressure-Field Working Standard Microphone Set
Precision Working Standard Microphone – Designed strictly to working standard microphone specifications, ideal for use as a transfer standard in calibrating acoustic measurement instruments.
Wide Frequency Response – Delivers stable performance across a frequency range up to 20 kHz, supporting diverse acoustic measurement scenarios.
Exceptional Stability for Precision Cavity Measurements – Purpose-built for measurements within precision cavities, ensuring reliable, repeatable results in demanding test environments.
Press-Fit Diaphragm Structure – Robust construction requiring external polarization power, engineered for consistent, long-term performance.
Flexible Power Compatibility – Compatible with low-noise dual power supplies (±75 V max) or low-noise single positive power supplies (150 V max), supported via a Lemo-type preamplifier requiring 200 V external polarization voltage.
TEDS-Enabled Smart Sensor Integration – Supports Transducer Electronic Data Sheet (TEDS) functionality per IEEE 1451.4 (V1.0 format), enabling automated sensor recognition and streamlined system integration.
Versatile Applications – Suited for acoustic research, electroacoustic testing, and artificial ear measurements, as well as broader acoustic instrument calibration needs.
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Class 1SLM -
Mobile App -
IEC61672
01
Product Description
The AWA14404-S00E is a unit comprising a pressure-field working standard microphone and a Lemo-type preamplifier. Designed in strict accordance with specifications for working standard microphones, it features a press-fit diaphragm structure and requires external polarization power for operation. It offers exceptional stability and a frequency range extending up to 20 kHz, making it suitable for use as a transfer standard in the calibration of acoustic measurement instruments, as well as for electroacoustic testing applications such as artificial ear measurements.
Product Video
Features
Applications of Pressure-Field Working Standard Microphone Sets
Pressure-field working standard microphone cartridges feature a wide frequency response range, making them suitable for diverse measurement scenarios. Designed specifically for measurements within precision cavities, these units offer exceptional stability, allowing them to serve as transfer standards for calibrating acoustic measurement instruments; they are widely used in fields such as acoustic research and electroacoustic testing.
Compatibility
The AWA14404-S00E measurement microphone set requires an external 200 V polarization voltage supplied via a preamplifier. The preamplifier itself must be powered by either a low-noise dual power supply (maximum voltage not exceeding ±75 V) or a low-noise single positive power supply (maximum voltage not exceeding 150 V).
TEDS Measurement Microphone Set
This cartridge supports TEDS (Transducer Electronic Data Sheet) functionality, is programmed according to the IEEE 1451.4 standard, and complies with V1.0 format requirements. It is compatible with smart sensor technology, facilitating the integration and automated management of sensor information.
Calibration
Each measurement microphone set is calibrated using traceable equipment prior to shipment and comes with a calibration certificate. Annual recalibration is recommended.
Quality and Warranty
All Aihua microphones feature second-generation alloy diaphragms, high-strength protective grids, and synthetic corundum insulators, making them highly stable and reliable measurement microphones. Compared to traditional nickel or stainless steel, these alloy diaphragms offer superior corrosion resistance, high-temperature stability, impact resistance, and specific strength. Assembly and testing are conducted in Class 1000 cleanrooms to ensure the highest quality. The measurement microphone unit comes with a one-year warranty, backed by comprehensive after-sales support.
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AWA14404-S00E 1/2" Pressure-Field Working Standard Microphone Set |
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Sound Field Type |
Pressure field |
Pressure Equalization |
Lateral pressure equalization |
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Diameter |
1/2 inch |
Operating Temperature (°C) |
-30 to +100 |
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Dimensions Standard (IEC 61094) |
WS2P |
Temperature Coefficient (dB/°C) (@250 Hz) |
-0.005（-10 ℃～50 ℃） |
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Polarization voltage (V) |
200 |
Static pressure coefficient (dB/kPa) |
-0.005 |
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Sensitivity (mV/Pa) (@250 Hz ±2.0 dB) |
12.6 |
Operating humidity range (%RH) |
0–100 |
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Frequency range (Hz) |
3.15～20k |
Input impedance/capacitance |
≥10 GΩ / ≤0.5 pF |
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Typical capacitance (pF) |
18 |
Output voltage |
>10 Vrms (at 60 V supply) |
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Dynamic range |
24 dBA～160 dB |
Output impedance |
≤50 Ω |
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Noise floor (dBA) |
≤24 |
Output interface |
LEMO plug |
Frequency Response
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