1/4英寸自由场传声器,预极化
专为在 4 Hz 至 100 kHz 频率范围内进行高声级和高频测量设计的自由场传声器。
4954型是一款1/4英寸预极化自由场传声器,专为高声级和高频测量而设计。
使用激光焊接的不锈钢振膜和不锈钢保护网,使这款传声器能够承受恶劣环境。
| Standard | IEC 61094, IEC 61672 |
| Sound field | Free field |
| Polarization | CCLD, Classical |
| Sensitivity | 2.8 mV/Pa |
| Lower frequency | 16 Hz, 50 Hz, 3 Hz |
| Higher frequency | 80 kHz, 22 kHz |
| Lower dynamic range | 40 dB, 34 dB |
| Higher dynamic range | 159 dB, 164 dB |
| Diameter | 1/4 inch |
| Venting | Side |
| Minimum Temperature | -20 °C |
| Maximum Temperature | 80 °C, 100 °C |
| Minimum Temperature | -4 °F |
| Maximum Temperature | 176 °F, 212 °F |
| Output signal (connectivity) | Passive |
List of accessories available for all variants of this family
This microphone consists of Microphone Type 4954 laser welded to a ¼" microphone preamplifier. 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 transducers can be connected to any CCLD input and support IEEE P1451.4 V0.9 TEDS (Transducer Electronic Data Sheet). The unit also contains TEDS, which means that information about the serial number, type and sensitivity is stored within it.