丹麥BK4231聲學校準器/麥克風校準器
丹麥BK4231聲學校準器/麥克風校準器
丹麥BK4231聲學校準器/麥克風校準器
詳詢請聯系產品負責人 吳經理： 132.4667.5433
產品詳細說明
特點:PREFIX = O
- 符合EN/IEC60942 (2003)和ANSI S1.40 – 1984 標準
- 校正精度±0.2 dB
- 94 dB SPL和114 dB SPL2種校正電平
- 1 kHz校正頻率
- 適用Brüel &Kj?r 1″和1/2 ″測量麥克風 (1/4"和 1/8″需要選配適配器)
使用場景：
聲級計的校準
傳聲器的校準
通用聲音測量儀器的校準
產品特點：
堅固的口袋大小設計，具有高度穩定的電平和頻率
校準精度±0.2 dB
94 dB SPL或114 dB SPL，用于在嘈雜環境中進行校準
靜壓和溫度的影響小
聲壓與麥克風等效音量無關
FEATURES:
Conforms to IEC942 (1988) Class 1 and ANSIS1.40–1984 (R1997)
Robust pocket-size design with highly stable level and frequency
Calibration accuracy ±0.2 dB
94 dB SPL, or 114 dB SPL for calibration in noisy environments
Extremely small influence of static pressure
Sound pressure independent of microphone equivalent volume
1 kHz calibration frequency for correct calibration level independent of weighting networks
Fits Brüel &Kj?r 1″ and 1/2 ″ microphones (1/4″ and 1/8″ microphones with adaptor)
Switches off automatically when removed from the Microphone
USES:
Calibration of sound level meters and other sound measurement equipment
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