低频校准器
典型应用
- 低频压力响应测量
- 低频相位响应测量
- 比较测量
- 单通道和双通道测量
GRAS 42AE Low Frequency Calibrator
Sound pressure level: 140 dB
Freq range: 0.01 to 250 Hz
GRAS 42AE Low Frequency Calibrator
The GRAS 42AE Low-Frequency Calibrator permits microphone calibration at frequencies down to 0.01 Hz for both front and rear-vented microphones. It produces a constant sound pressure level down to very low frequencies.
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