基于MX7705的高精度温度测量电路的设计
Automation Panorama（2007）
Abstract
介绍了高性能A/D转换器MX7705的结构和特点,设计了基于MX7705的高精度温度测量电路,该测量电路具有性价比高、环境适应性强、编程设计灵活、且易于和微处理器(μPC)接口等优点,可满足多数工业温度控制要求。实测数据表明,当热电偶冷结点温度从-40℃到+85℃范围内变化时,测量+100℃热结点温度,测量误差不超过±1.6/。
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Key words
MX7705,cold junction temperature compensation,digitalf iltering,thermocouple,temperature
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