½“预极化自由场传声器
4189型设计用于需要高灵敏度传声器的精密自由场测量。由于是预极化的，因此该传声器可与DeltaTron和经典前置放大器一起使用。
4189 系列
4189型是我们15年来最畅销的传声器，因为它在提供了最佳结果，并且在未来几十年内将继续保持这一优势，同时可适配CCLD和经典前置放大器。此外，这为电声测量（如扬声器和麦克风测量）提供了出色的结果，并且多年来赢得了客户的信任。
| Code | Polarization | 下限频率 | Lower dynamic range | Higher dynamic range | 最低温度 | 最高温度 | 最低温度 | 最高温度 |
|---|---|---|---|---|---|---|---|---|
| -4189-A-021- | CCLD, CCLD | 20 Hz | 16.5 dB | 134 dB | -20 °C | 80 °C | -4 °F | 176 °F |
| -4189-A-031- | CCLD, CCLD | 6.3 Hz | 16.5 dB | 134 dB | -30 °C | 150 °C | -22 °F | 302 °F |
| -4189-C-001- | Classical, Classical | 6.3 Hz | 15.2 dB | 146 dB | -20 °C | 80 °C | -4 °F | 176 °F |
| -4189-H-041- | CCLD, CCLD | 6.3 Hz | 16.5 dB | 134 dB | -20 °C | 125 °C | -4 °F | 257 °F |
| -4189-L-001- | Classical, Classical | 6.3 Hz | 15.2 dB | 146 dB | -20 °C | 80 °C | -4 °F | 176 °F |
| -4189-W-003- | CCLD, CCLD | 6.3 Hz | 16.5 dB | 134 dB | -20 °C | 80 °C | -4 °F | 176 °F |
| TEDS Microphones | Data Sheets | English |
| TEDS Microphones | Data Sheets | Japanese |
| Standard | IEC 61094 |
| Sound field | Free field |
| Polarization | Classical, CCLD |
| Sensitivity | 50 mV/Pa |
| Lower frequency | 6.3 Hz, 20 Hz |
| Higher frequency | 20 kHz |
| Lower dynamic range | 15.2 dB, 16.5 dB |
| Higher dynamic range | 146 dB, 134 dB |
| Diameter | 1/2 inch |
| Venting | Rear |
| Minimum Temperature | -20 °C, -30 °C |
| Maximum Temperature | 80 °C, 150 °C, 125 °C |
| Minimum Temperature | -4 °F, -22 °F |
| Maximum Temperature | 176 °F, 302 °F, 257 °F |
| Output signal (connectivity) | 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.
