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AWA14400 condenser microphone
The AWA14400 series test condenser microphone is a precision acoustic measurement sensor used for converting acoustic signals into electrical signals.
Product details
Introduction to AWA14400 series condenser microphone:
AWA14400 series condenser microphoneIt is a precision acoustic measurement sensor used for converting acoustic signals into electrical signals. Adopting nickel diaphragm and nickel alloy shell, and undergoing special stability treatment, it has the advantages of wide frequency range, good frequency characteristics, wide dynamic range, good dynamic characteristics, and good temperature and long-term stability. Among them, the pre polarization test condenser microphone is more widely used due to its simple circuit and no need for additional polarization voltage. The appearance, installation dimensions, and main performance comply with IEC 61094-4 and GB/T 20441.4 standards, and can directly replace the corresponding test microphones of other manufacturers and imported instruments. The temperature range for use is:- 20 ℃ to+70 ℃.
Technical parameters:
model |
outside diameter |
Nominal sensitivity (mV/Pa) |
Polarization voltage (V) |
Frequency range (Hz) |
Frequency response characteristics |
Dynamic range (dB)* |
Capacitance (pF) |
Temperature coefficient (dB/℃) |
structure size |
characteristic |
14411 |
Φ23.77 mm (1') |
100 |
0 |
10～16,000 |
free field |
10~133 |
35 |
0.015 |
WS1 type |
Low sound level measurement |
14421B |
Φ12.7 mm (1/2') |
7.1 |
20~10000 |
free field |
30~140 |
19 |
0.02 |
Level 2 Sound Level Meter |
||
14421 |
30 |
20～12,500 |
free field |
21~142 |
17 |
0.02 |
WS2 type |
Level 2 Sound Level Meter |
||
14422 |
30 |
20～8,000 |
pressure field |
21~142 |
15 |
0.02 |
Used for acoustic coupling cavity |
|||
14424B |
30 |
20～12,500 |
pressure field |
21~142 |
15 |
0.02 |
Used for acoustic coupling cavity |
|||
14423 |
50 |
10~20,000 |
free field |
17~140 |
18 |
0.015 |
Level 1 Sound Level Meter |
|||
14423L |
40 |
10~20,000 |
free field |
18~140 |
18 |
Level 1 Sound Level Meter |
||||
14425 |
40 |
10～16,000 |
free field |
18~140 |
16 |
Level 1 Sound Level Meter |
||||
14427 |
12.5 |
20～12,500 |
free field |
27~150 |
15 |
0.02 |
Level 2 Sound Level Meter |
|||
14404 |
12.6 |
200V |
10~20000 |
pressure field |
24~160 |
18 |
0.01 |
Engineering Surveying Level 1 |
||
14429 |
30 |
0V |
20～10,000 |
diffusion field |
21~142 |
15 |
0.02 |
Outdoor monitoring |
||
14435 |
Φ6.35 mm (1/4') |
4 |
20～20,000 |
free field |
40~160 |
8 |
0.02 |
WS3 type |
High sound level measurement |
*From A-weighted background noise to 3% distortion (dB, with 20 μ Pa as reference)
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