4988 系列

带CCLD前置放大器的1/4“压力场传声器，预极化

用于在靠近硬反射表面或嵌入式的小型封闭耦合腔中进行测量的压力场传声器，频率响应范围为20 Hz至20 kHz。

4988 系列

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4988-A型是一款1/4“预极化压力场传声器，与1/4”CCLD前置放大器激光焊接。前置放大器连接到CCLD输入调理器，并支持IEEE P1451.4 V1.0传感器电子数据表（TEDS）。

它采用全钛设计，确保最大程度地抵抗腐蚀，并对磁场具有最低敏感性。

需要符合 EN/IEC 61326 EMC 标准的产品的测量
非常接近音频设备的声口（近场）的测量
在发生反射的小型声学室和测试箱中的测量
在不可预测的声场条件下的测量
齐平安装
生产测试系统
在声学耦合腔（压力场）内部
用于调谐传声器阵列和主动降噪系统的参考传声器

¼-inch Pressure-field TEDS Microphone Type 4988-A

Data Sheets

English

FAMILY 4988
Standard	IEC 61094
Sound field	Pressure field
Polarization	CCLD
Sensitivity	11 mV/Pa
Lower frequency	20 Hz
Higher frequency	20 kHz
Lower dynamic range	29 dB
Higher dynamic range	146 dB
Diameter	1/4 inch
Venting	Rear
Minimum Temperature	-20 °C
Maximum Temperature	80 °C
Minimum Temperature	-4 °F
Maximum Temperature	176 °F
Output signal (connectivity)	Passive

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