TYPE 4954

<强>1/4英寸自由场麦克风，预极化

自由场麦克风，专为在 4 Hz 到 100 kHz 的频率范围内进行高级别和高频测量而设计。

TYPE 4954

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4954型是1/4英寸预极化自由场麦克风，专为高电平和高频测量而设计。

采用激光焊接的不锈钢膜片和不锈钢保护栅，使这款麦克风能够承受恶劣的环境。

Ul.

高频测量

高级别测量

具有成本效益的测量

Code	Standard	Polarization	下限频率	上限频率	Lower dynamic range	Higher dynamic range	最高温度	最高温度
-4954-A-011-	IEC 61094, IEC 61094	Classical, Classical	3 Hz	80 kHz	34 dB	164 dB	80 °C	176 °F
-4954-A-023-	IEC 61094, IEC 61094	Classical, Classical	3 Hz	80 kHz	34 dB	164 dB	80 °C	176 °F
-4954-A--	IEC 61094, IEC 61094	CCLD, CCLD	16 Hz	80 kHz	40 dB	159 dB	80 °C	176 °F
-4954-B--	IEC 61094, IEC 61094	CCLD, CCLD	16 Hz	80 kHz	40 dB	159 dB	80 °C	176 °F
-4954-W-004-	IEC 61672, IEC 61672	Classical, Classical	50 Hz	22 kHz	40 dB	159 dB	100 °C	212 °F

1/4-inch Prepolarized Free-field TEDS Microphone Types 4954-A and 4954-B

Data Sheets

English

FAMILY 4954
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

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.

BENEFITS OF USING A MICROPHONE-PREAMPLIFIER SET:

Better stability and precision. Because the unit is assembled in clean-room facilities, there is no contamination.
Ease of use. Your analyzer front-end and software will automatically detect the type number, serial number and sensitivity because of the built-in TEDS technology. There is no need to enter this manually for every channel.
Calibration integration. The TEDS technology means the microphone is automatically detected and identified by your data acquisition software, allowing it to be easily integrated with your calibration database.
Fewer errors. As your data acquisition software automatically knows the microphone type, serial number and sensitivity, manual inputs are greatly reduced – reducing human errors.

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