產(chǎn)品展示
b&k4231麥克風(fēng)校正器
點(diǎn)擊次數(shù)：137發(fā)布時(shí)間：2011/5/10 16:44:00
更新日期：2012/8/11 11:13:33
所 在 地：歐洲
產(chǎn)品型號(hào)：b&k4231
優(yōu)質(zhì)供應(yīng)
詳細(xì)內(nèi)容
特點(diǎn):
- 符合EN/IEC60942 （2003）和ANSI S1.40 – 1984 標(biāo)準(zhǔn)
- 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 &Kjær 1″和1/2 ″測(cè)量麥克風(fēng) （1/4"和 1/8″需要選配適配器）
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 &Kjær 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
