<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
| Code | 上限频率 |
|---|---|
| -4944-A-- | 70 kHz |
| -4944-B-- | 70 kHz |
| -4944-W-007- | 70000 Hz |
| TEDS Microphones | Data Sheets | English |
| 1/4'' DeltaTron Pressure-field Microphones - Types 4944-A and 4944-B | Data Sheets | English |
| TEDS Microphones | Data Sheets | Japanese |
| Standard | IEC 61094 |
| Sound field | Pressure field |
| Polarization | CCLD |
| Sensitivity | 0.9 mV/Pa |
| Lower frequency | 16 Hz |
| Higher frequency | 70 kHz, 70000 Hz |
| Lower dynamic range | 48 dB |
| Higher dynamic range | 169 dB |
| Diameter | 1/4 inch |
| Venting | Side |
| Minimum Temperature | -20 °C |
| Maximum Temperature | 100 °C |
| Minimum Temperature | -4 °F |
| Maximum Temperature | 212 °F |
| Output signal (connectivity) | Passive |
| Code | 上限频率 |
|---|---|
| -4944-A-- | 70 kHz |
| -4944-B-- | 70 kHz |
| -4944-W-007- | 70000 Hz |
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 microphone is supplied with a mini-CD. This mini-CD carries all individual calibration data as well as random-incidence and free-field corrections. The influence of ¼-inch Nose Cone UA-0385 is also available.
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.
