Type 4954A 1/4 inch CCLD Free-field Microphone Set

4954-A-023

¼” Free-field Microphone, Prepolarized,

Free-field microphone designed for high-level and high-frequency measurements with a frequency response of 3 Hz To 80 kHz.

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TYPE 4954-A-011 - 1/4" FREE-FIELD MICROPHONE WITH TYPE 2671 PREAMPLIFIER, PREPOLARIZED:

Type 4954-A-011 is designed for high-level and high-frequency measurements. The use of a laser welded stainless steel diaphragm and a stainless steel protection grid, make this microphone capable of withstanding rough environments.

THIS MICROPHONE SET IS A COMBINATION OF:

Microphone Type 4954
Preamplifier Type 2671

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 unit also contains TEDS, which means that information about the serial number, type and sensitivity is stored within it.

USE SCENARIOS

High-frequency measurements
High-level measurements
Cost-effective measurements

THE BENEFITS OF USING A MICROPHONE-PREAMPLIFIER COMBINATION ARE:

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.

TEDS Microphones	Data Sheets	English
TEDS Microphones	Data Sheets	Japanese

Key Attributes: Microphones
Standard	IEC 61094
Sound field	Free field
Polarization	Classical
Sensitivity	2.8 mV/Pa
Lower frequency	3 Hz
Higher frequency	80 kHz
Lower dynamic range	34 dB
Higher dynamic range	164 dB
Diameter	1/4 inch
Venting	Side
Minimum Temperature	-20 °C
Maximum Temperature	80 °C
Minimum Temperature	-4 °F
Maximum Temperature	176 °F
Output signal (connectivity)	Passive

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