1/4“预极化压力场传声器
4944型是一款¼英寸预极化压力场传声器，专为在4 Hz至70 kHz的频率范围内进行高声级和高频测量而设计。
4944 型
预极化¼“压力场传声器4944型专为高声级和高频测量而设计。通过使用新材料和新的振膜安装方式，传声器可承受粗暴操作。传声器在洁净室环境中的组装确保了传声器可以在高湿度环境中使用，并且仍然能产生可靠的结果。4944型可与声级计一起使用，以测量高声压级
| TEDS Microphones | 數據表 | English |
| Prepolarized Pressure-field 1/4'' Microphone | 數據表 | English |
| TEDS Microphones | 數據表 | Japanese |
| Standard | IEC 61094 |
| Sound field | Pressure field |
| Polarization voltage | 0V |
| Sensitivity | 0.9 mV/Pa |
| Lower limiting frequency | 4 Hz |
| Higher limiting frequency | 70 kHz |
| Inherent noise | 30 dB(A) |
| Upper limiting of dynamic range | 170 dB |
| Diameter | 1/4 inch |
| Venting | Side |
| Minimum Temperature | -20 °C |
| Maximum Temperature | 100 °C |
| Minimum Temperature | -4 °F |
| Maximum Temperature | 212 °F |
The shape of the microphone front ensures excellent microphone performance when flush-mounted. The laser-welded diaphragm on the microphone housing ensures that the sensitivity is resistant to rough handling during flush mounting.
The sensitivity can be calibrated at 250 Hz using Pistonphone Type 4228 with ¼-inch Adaptor DP-0775. The pressure-field response can be measured using Actuator UA- 0033 with Adaptor DB-0264. The pressure-field response is equal to the actuator response.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.
This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.