| 基于C8051F040单片机的导热系数自动测量仪的研制 |
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| 引用本文： | 李才对,樊瑜瑾,宋鹏云.基于C8051F040单片机的导热系数自动测量仪的研制[J].自动化与仪器仪表,2005(6):9-12,21. |
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| 作者姓名： | 李才对 樊瑜瑾 宋鹏云 |
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| 作者单位： | 1. 昆明理工大学生物与化学工程学院,云南,昆明,650224
2. 昆明理工大学机电工程学院,云南,昆明,650093 |
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| 摘 要： | 介绍了以高速单片机C8051F040为核心,基于稳态比较法测量原理的导热系数自动测量装置。在阐述测量原理的基础上,详细介绍了测量装置的构成和各部分的硬件实现原理,给出了软件设计要点,探讨了提高测量精度的可能途径。使用表明,该仪器可快速测量常温下的硬质圆柱型固体材料的导热系数,重复精度达到了5%,具有一定的应用价值。
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| 关 键 词： | 导热系数 稳态法 比较法 自动测量 C8051F040 |
| 文章编号： | 1001-9227（2005）06-0009-05 |
| 收稿时间： | 2005-05-04 |
| 修稿时间： | 2005-05-04 |
An intelligent instrument of measuring thermal conductivity based on C8051F040 MCU |
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| Li Caidui.An intelligent instrument of measuring thermal conductivity based on C8051F040 MCU[J].Automation & Instrumentation,2005(6):9-12,21. |
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| Authors: | Li Caidui |
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| Abstract: | The paper presents an intelligent instrument of measuring thermal conductivity based on steady-state method and comparison method. The instrument is controlled by C8051F040 MCU with high speed. Principle of each part of the instrument is described detailedly after measuring theory is elucidated. Main points of software design are also offered . Some probable approaches of improving metrical precision are discussed at the end of the article. Practice shows that the instrument can measure thermal conductivity of horniness solid matter in columned form at normal temperature, bringing out repeated error of only five percent and worth widely generalized. |
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| Keywords: | Thermal conductivity Steady - state method Comparison method Iintelligent measure-ment C8051F040 |
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