1/4 英寸生产线测试传声器
用于生产测试中靠近发声口的经济高效且精确测量的压力场产线测试传声器。
4989-A 型
传声器4989-A型是一款 20 kHz 1/4" 压力场全钛质传声器，配有激光焊接的振膜。传声器在洁净室中组装，以确保其完整性和 TEDS 数据的有效性。这使得其具有卓越的稳健性和长期稳定性。
4989-A型的设计确保了单个传声器之间的差异最小化，最大限度地抵抗腐蚀，对磁场的敏感度最小，传声器和前置放大器外壳均为钛质，并配有镀金黄铜连接器。传声器几乎不受温度、静压和湿度变化的影响，使其成为在温度和湿度可能变化的场所集成到生产测试系统中的理想传声器。
| 1/4-inch Production Line Test Microphone Type 4989-A | Data Sheets | English |
| Sound field | Special |
| Polarization | CCLD |
| Sensitivity | 9 mV/Pa |
| Lower frequency | 5 Hz |
| Higher frequency | 20 kHz |
| Lower dynamic range | 30 dB |
| Higher dynamic range | 140 dB |
| Diameter | 1/4 inch |
| Venting | Side |
| Minimum Temperature | -20 °C |
| Maximum Temperature | 60 °C |
| Minimum Temperature | -4 °F |
| Maximum Temperature | 140 °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.