1/4“自由场传声器，预极化
4954 型
高声级和高频率传声器套组 4954-B 型提供出色的测量性能，而激光焊接的不锈钢振膜和不锈钢保护格栅使该传声器能够承受恶劣环境。
| Standard | IEC 61094 |
| Sound field | Free field |
| Polarization voltage | 0V |
| Sensitivity | 3.16 mV/Pa |
| Lower limiting frequency | 4 Hz |
| Higher limiting frequency | 100 kHz |
| Inherent noise | 35 dB(A) |
| Upper limiting of dynamic range | 165 dB |
| Diameter | 1/4 inch |
| Venting | Side |
| Minimum Temperature | -40 °C |
| Maximum Temperature | 150 °C |
| Minimum Temperature | -40 °F |
| Maximum Temperature | 302 °F |
Prepolarized Free-field Microphone Type 4954 has been optimised for a flat, free-field response and is suited for measurements far beyond the audible range. Due to its wide frequency range, the frequency response in the audible range is typically within ±1 dB.
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.