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Type 4954 B

TYPE 4954

1/4インチ フリーフィールドマイクロスコープ、プリポラライズド 

1/4インチ フリーフィールドマイクロスコープ、プリポラライズド 

4Hz～70kHzの周波数応答を持つ、高レベルおよび高周波測定用に設計された圧力屋外TEDSマイクロホン。
TYPE 4954

TYPE 4954

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TYPE4954は1/4インチ偏極型フリーフィールドマイクロスコープで、高音域や高周波の測定用に特別に設計されています

。

レーザー溶接されたステンレス製の振動板とステンレス製の保護グリッドの使用により、このマイクは過酷な環境にも耐えることができます。

  • 高周波測定
  • 高レベルの測定
  • 。
  • 費用対効果の高い測定
  • 。

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Document タイプ 言語
1/4-inch Prepolarized Free-field TEDS Microphone Types 4954-A and 4954-B データシート English
FAMILY 4954
プロパティ 値
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.