<强>1/4"麦克风风，预极化
4944 型是 ¼ 英寸预极化压力场麦克风 设计用于 4 Hz 到 70 kHz 频率范围内的高电平和高频测量。
TYPE 4944
预极化¼″压力场麦克风TYPE 4944专为高级别和高频测量而设计。通过使用新材料和新型隔膜安装方式，麦克风能够承受粗糙的搬运。在洁净室环境中组装麦克风可确保麦克风在高湿度环境中使用，并且仍然产生可靠的结果。TYPE 4944可与声级计合使用，测量高声压级
| TEDS Microphones | Data Sheets | English |
| Prepolarized Pressure-field 1/4'' Microphone | Data Sheets | English |
| TEDS Microphones | Data Sheets | 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.
