1/2“低频压力场传声器
低频传声器Type 4193专为在0.07 Hz至20 kHz的频率范围内进行次声测量而设计。该传声器为外部极化，必须与经典的前置放大器一起使用。
4193 型
4193型低频传声器专为在船舶发动机舱、直升机和风吹建筑物中进行次声测量而设计，因为其极低的截止频率。
当与次声适配器 UC-0211 一起使用时，放大器的下限频率为降至 0.1 Hz。
压力场传声器经过优化，在压力场中具有平坦的频率响应，非常适合在小型封闭耦合腔中或靠近硬质反射表面进行测量。在以下情况下，传声器是理想的选择：
| TEDS Microphones | Data Sheets | English |
| ½″ Pressure-field Microphone Type 4193 Datasheet (bp2214) | Data Sheets | English |
| TEDS Microphones | Data Sheets | Japanese |
| Standard | IEC 61094 |
| Sound field | Pressure field |
| Polarization voltage | 200V |
| Sensitivity | 12.5 mV/Pa |
| Lower limiting frequency | 0.07 Hz |
| Higher limiting frequency | 20000 Hz |
| Inherent noise | 19 dB(A) |
| Upper limiting of dynamic range | 162 dB |
| Diameter | 1/2 inch |
| Venting | Side |
| Minimum Temperature | -30 °C |
| Maximum Temperature | 300 °C |
| Minimum Temperature | -22 °F |
| Maximum Temperature | 572 °F |
A press-fitted, stainless-steel diaphragm ensure superior long-term stability and mechanical robustness – Type 4193 will withstand the 1 m drop test of IEC 6006-2-32.
Type 4193 requires an external polarization voltage and must therefore must be used with a classical preamplifier. External polarized microphones may be used at higher temperatures without severe changes in sensitivity.
This microphone cartridge is available as a Infrasound Microphone Set with the classical Preamplifier Type 2669 built-in.
The TEDS microphone has been sealed in a clean environment. The TEDS is programmed with the loaded sensitivity of the actual cartridge and the data is therefore readily available.
The default TEDS template is to IEEE P 1451.4 but TEDS to IEEE 1451.4 is available on request.
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.
