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4938-C-002 Connector

4938-A-011 with cable

4938-A-011 Connector

4938-C-002 Connector

4938-A-011 with cable

4938-A-011 Connector

TYPE 4938

1/4-INCH PRESSURE-FIELD MICROPHONE, EXTERNALLY POLARIZED

圧力フィールドマイクロスコープで、4 Hz～70 kHzの高音域と高周波の測定が可能

。

TYPE 4938

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4938型圧力フィールド1/4インチマイクロホンは、高音域と高周波の測定用に設計されています。マイクは乱暴な取り扱いや最高300℃の高温にも耐えられるよう設計されています。

高温測定
高周波測定

Code	感度	Lower dynamic range	最低温度	最大温度	最低温度	最大温度
-4938-A-011-	1.4 mV/Pa	42 dB	-20 °C	80 °C	-4 °F	176 °F
-4938-D-011-	1.4 mV/Pa	42 dB	-20 °C	80 °C	-4 °F	176 °F
-4938-L-002-	1.4 mV/Pa	42 dB	-20 °C	80 °C	-4 °F	176 °F
-4938-W-001-	1.6 mV/Pa	30 dB	-40 °C	300 °C	-40 °F	572 °F

1/4'' Pressure-field Microphone Type 4938	Data Sheets	English
TEDS Microphones	Data Sheets	English
TEDS Microphones	Data Sheets	Japanese

FAMILY 4938
Standard	IEC 61094
Sound field	Pressure field
Polarization	Classical
Sensitivity	1.4 mV/Pa, 1.6 mV/Pa
Lower frequency	4 Hz
Higher frequency	70 kHz
Lower dynamic range	42 dB, 30 dB
Higher dynamic range	172 dB
Diameter	1/4 inch
Venting	Side
Minimum Temperature	-20 °C, -40 °C
Maximum Temperature	80 °C, 300 °C
Minimum Temperature	-4 °F, -40 °F
Maximum Temperature	176 °F, 572 °F
Output signal (connectivity)	Passive

THIS MICROPHONE SET IS A COMBINATION OF:

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.

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.

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