1/2"低噪声传声器，自由场
这款低噪声传声器专为在强磁场中进行声功率测量和自由场测量而设计，频率范围为5 Hz至20 kHz。
4955 系列
4955型低噪声传声器由高灵敏度½“传声器组成，经过优化，具有最低的本底噪声。
4955型 TEDS传声器的噪声水平通常低于5.5 dB（A），因此可以进行远低于10 dB（A）的测量。
| ½ inch Low-noise Free-field TEDS Microphone Type 4955 and 4955-A | 數據表 | English |
| [Japanese] Product data - 4955 (bp2161) | 數據表 | Japanese |
| Sound field | Free field |
| Polarization | Classical |
| Sensitivity | 1100 mV/Pa |
| Lower frequency | 10 Hz |
| Higher frequency | 16 kHz |
| Lower dynamic range | 6.5 dB, 19 dB |
| Higher dynamic range | 110 dB, 136 dB |
| Diameter | 1/2 inch |
| Venting | Front |
| Minimum Temperature | -20 °C |
| Maximum Temperature | 100 °C |
| Minimum Temperature | -4 °F |
| Maximum Temperature | 212 °F |
| Output signal (connectivity) | Passive |
List of accessories available for all variants of this family
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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