4939-L-002
Free-field microphone designed for high-level and high-frequency measurements with a frequency response of 4 Hz to 100 kHz.
"1/4"" Free-field Microphone, incl. Prea
Using stainless steel diaphragm and protection grid, Type 4939 Microphone is built to withstand rough environments and can be used in high-temperature measurements up to 150°C (302°F).
The microphone requires an external polarization voltage and must therefore be used with a classical preamplifier. Externally polarized microphones can be used at higher temperatures without severe changes in measurement sensitivity.
| Sound & Vibration Pocket Handbook 2022 | Tech Notes | English |
| TEDS Microphones | 數據表 | English |
| TEDS Microphones | 數據表 | Japanese |
| 标准 | IEC 61094 |
| 声场 | Free field |
| 极化 | Classical |
| 灵敏度 | 3.5 mV/Pa |
| 下限频率 | 4 Hz |
| 上限频率 | 100 kHz |
| 较低动态范围 | 35 dB |
| 较高动态范围 | 164 dB |
| 直径 | 1/4 inch |
| 排气 | Side |
| 最低温度 | -20 °C |
| 最高温度 | 80 °C |
| 最低温度 | -4 °F |
| 最高温度 | 176 °F |
| 输出信号 | Passive |
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.
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