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技術(shù)文章

Technical articles

當(dāng)前位置:首頁(yè)技術(shù)文章聲級(jí)計(jì)校準(zhǔn)儀/聲級(jí)計(jì)校準(zhǔn)器

聲級(jí)計(jì)校準(zhǔn)儀/聲級(jí)計(jì)校準(zhǔn)器

更新時(shí)間:2014-08-26點(diǎn)擊次數(shù):1378

聲級(jí)計(jì)校準(zhǔn)儀/聲級(jí)計(jì)校準(zhǔn)器 型號(hào)DPWA6221B

 

聲級(jí)校準(zhǔn)器主要用于傳聲器、聲級(jí)計(jì)和其它聲學(xué)測(cè)量?jī)x器的聲壓校準(zhǔn),符合GB/T15173 2級(jí)。電池作,使用方便。

主要性能
1.標(biāo)稱(chēng)聲壓級(jí):94dB (20μPa為基準(zhǔn))
2.頻率:1kHz20±20Hz
3.
聲壓級(jí)準(zhǔn)確度:2級(jí),±0.5dB(對(duì)94dB)
4.
總諧波失真:≤1%94dB時(shí))
5.電源:電池1x6F22
6.
適用范圍:φ12.7mm1/2英寸)傳聲器及聲學(xué)測(cè)量?jī)x器校準(zhǔn)。

 

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