品牌 | 丹麥B K | 型號(hào) | 4231 |
類型 | 數(shù)字式噪音計(jì) |
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丹麥B&K聲校準(zhǔn)器-4231產(chǎn)品特點(diǎn)及技術(shù)參數(shù)
原裝進(jìn)口,中山力高是丹麥B&4231型 聲級(jí)校準(zhǔn)器代理商,質(zhì)量保證、價(jià)格優(yōu)惠。
4231型 聲級(jí)校準(zhǔn)器,提供頻率1 kHz,聲壓級(jí)94 dB或114 dB的校準(zhǔn)信號(hào)(±0.2 dB),用於聲級(jí)計(jì)及其他聲測(cè)量設(shè)備校準(zhǔn)
特點(diǎn):
- 符合EN/IEC60942 (2003)和ANSI S1.40 – 1984 標(biāo)準(zhǔn)
- 校正±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 1ANSIS1.40–1984 (R1997)
? Robust pocket-size design with highly stable levelfrequency
? Calibration accuracy ?0.2 dB
? 94 dB SPL,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 metersother sound measurement equipment