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由单片机构成的智能温湿度计,不但性能上较集成电路温湿度计为优,成本上也可降低,本文给出了一种低成本的智能温湿度计的设计方案。对按此方案制成的样机的测试结果表明,仪表的精度及长期稳定性均可满足要求。
The intelligent thermometer and hygrometer composed of single-chip microcomputer not only performs better than the integrated circuit thermometer and hygrometer, but also reduces the cost. In this paper, a low-cost design scheme of intelligent hygrometer is presented. The test results of prototypes made according to this scheme show that the accuracy and long-term stability of the instrument can meet the requirements.