手机棋牌游戏

手机棋牌游戏
手机棋牌游戏 >>> 手机棋牌游戏 >>> 制氮机微量氧分析仪的选择

制氮机微量氧分析仪的选择

1)在国内空分行业,氧含量百分比分析仪器有磁压式、电化学氧分析仪、磁力机械式(热磁式)和氧化锆式。磁力机械式氧分析仪利用氧的顺磁性,通过磁场电流与氧含量的线性 关系来测量氧含量。有些公司的产品不需要参比气,测量精度高,分辨率和灵敏度高,稳定性强,且线性输出,无需维护。而有些公司生产的氧分析仪必须有高纯氧 (99.99%)作为参比气,测量起来会相应麻烦,并且也增加了维护量和经济费用

 

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