| 电热法测量固体线胀系数实验的改进 |
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| 引用本文： | 刘爱华. 电热法测量固体线胀系数实验的改进[J]. 物理实验, 2005, 25(5): 42-44 |
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| 作者姓名： | 刘爱华 |
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| 作者单位： | 山东师范大学,物理与电子科学学院,山东,济南,250014 |
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| 基金项目： | 山东省自然科学基金资助项目(No.Y2003A01) |
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| 摘 要： | 设计了控温电路并改进了测量方法,消除了电热法测量固体线胀系数实验中,由于被测固体棒的线膨胀速度、系统加热速度及测温器响应速度不同步而引起的误差.
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| 关 键 词： | 线胀系数 温度传感器 控温 |
| 文章编号： | 1005-4642(2005)05-0042-03 |
| 修稿时间： | 2004-07-13 |
Improved measurment of linear expansion coefficient of solid based on the electrothermal method |
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| LIU Ai-hua. Improved measurment of linear expansion coefficient of solid based on the electrothermal method[J]. Physics Experimentation, 2005, 25(5): 42-44 |
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| Authors: | LIU Ai-hua |
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| Abstract: | In the experiment of measuring linear expansion coefficient of solid, controlling circuit is designed and the measurement method is improved. The error produced by the asynchronism between linear expansion speed and heat rate of system as well as the respond speed of thermoscope is avoided. |
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| Keywords: | linear expansion coefficient temperature sensor controlling temperature |
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