<强>½英寸自由场麦克风，外部偏振，3.15赫兹 – 40赫兹
自由场麦克风，用于高精度的自由场测量，频率范围宽/带宽为 3.15 Hz 至 40 kHz。
TYPE 4191
4191型专为需要宽带宽的高精度自由场测量而设计。TYPE 4191 是外部极化的，必须使用经典前置放大器。
| Code | Name |
|---|---|
| -4191-C-001- | "1/2"" Free-field Microphone, 200V Polar |
| -4191-L-001- | "1/2"" Free-field Microphone incl. Pream |
| TEDS Microphones | Data Sheets | English |
| TEDS Microphones | Data Sheets | Japanese |
| Standard | IEC 61094 |
| Sound field | Free field |
| Polarization | Classical |
| Sensitivity | 12.5 mV/Pa |
| Lower frequency | 3.15 Hz |
| Higher frequency | 40 kHz |
| Lower dynamic range | 21.4 dB |
| Higher dynamic range | 162 dB |
| Diameter | 1/2 inch |
| Venting | Side |
| Minimum Temperature | -20 °C |
| Maximum Temperature | 80 °C |
| Minimum Temperature | -4 °F |
| Maximum Temperature | 176 °F |
| Output signal (connectivity) | Passive |
The unit is assembled in a clean-room environment and sealed together, after which it is assigned one single type number and one single serial number. This means that the combined unit has better precision and long-time stability, and is handled as one complete unit.
The unit also contains TEDS, which means that information about the serial number, type and sensitivity is stored within it.
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.
