| 泡沫塑料材料的低温线膨胀系数测定 |
| |
| 引用本文： | 潘勤彦,黄传军,潘桢,杨汝平,郑卫东,赵立中,付绍云.泡沫塑料材料的低温线膨胀系数测定[J].低温工程,2005(3):35-39. |
| |
| 作者姓名： | 潘勤彦 黄传军 潘桢 杨汝平 郑卫东 赵立中 付绍云 |
| |
| 作者单位： | 中国科学院理化技术研究所,北京,100080;中国航天科技集团公司一院一部,北京,100076;中国航天科技集团一院703所,北京,100076 |
| |
| 摘 要： | 采用自行研制的高精度低温位移传感器测量出泡沫塑料材料从室温到液氢温度的微应变情况,对试验结果的可靠性进行分析.实验结果表明:低温位移传感器可准确、稳定地得出泡沫塑料材料的线膨胀系数,是一种简单实用的线膨胀系数测试方法.
|
| 关 键 词： | 线膨胀 位移传感器 测量 低温 |
| 文章编号： | 1000-6516(2005)03-0035-05 |
Thermal expansion measurement of polymeric foams at low temperature |
| |
| PAN Qinyan,Huang Chuanjun,PAN Zhen,Yang Ruping,Zheng Weidong,Zhao Lizhong,FU Shaoyun.Thermal expansion measurement of polymeric foams at low temperature[J].Cryogenics,2005(3):35-39. |
| |
| Authors: | PAN Qinyan Huang Chuanjun PAN Zhen Yang Ruping Zheng Weidong Zhao Lizhong FU Shaoyun |
| |
| Abstract: | A new method is developed for measurement of the thermal expansion coefficient (CTE) of polymeric foams at low temperature. In order to get the CTE, the microstrains of the polymeric foams from the room temperature to the liquid hydrogen temperature are measured using the self-designed strain gauge with high precision suitable for use at low temperature.The analysis of the results measured was carried out. It is shown that the self-designed strain gauge can be employed to precisely measure the thermal expansion coefficient of polymeric foams at low temperature.This method appears to be a simple but practical one for measurement of the CTE of polymeric foams at low temperature. |
| |
| Keywords: | thermal expansion strain gauge measurement low temperature |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
