| 王福吉,贾振元,刘巍,赵建国.具有气敏涂层的GMF静态磁机耦合模型及实验研究[J].,2010,(6):937-941 |
| 具有气敏涂层的GMF静态磁机耦合模型及实验研究 |
| A static magnetomechanical coupling model and its experimental study of giant magnetostrictive thin film with gas sensitive layer |
| |
| DOI：10.7511/dllgxb201006018 |
| 中文关键词: 敏感涂层 薄膜 磁机耦合 超磁致伸缩效应 |
| 英文关键词: sensitive layer thin film magnetomechanical coupling giant magnetostrictive effect |
| 基金项目:国家自然科学基金资助项目(5077502150605005). |
|
| 摘要点击次数: 1165 |
| 全文下载次数: 1109 |
| 中文摘要: |
| 为实现超磁致伸缩薄膜(GMF)在微气体传感器领域的应用，需要研究其在气敏涂层条件下的磁致伸缩特性．以几何非线性弹性理论为基础，将磁致伸缩效应等效为GMF上体积力作用下的变形效应，建立了具有气敏涂层的悬臂梁式结构双层GMF低磁场下静态磁机耦合模型，解析了GMF悬臂梁末端的磁场与位移的数学关联．通过对双层薄膜TbDyFe/PI/SmFe和TbDyFe/Cu/SmFe进行试验，验证了磁场与位移数学关联的正确性．结果表明，曲线模型有较好的预测性，具有气敏涂层的GMF表现出更好的磁致伸缩效应． |
| 英文摘要: |
| Study on the magnetostrictive characteristics of giant magnetostrictive thin film (GMF) with gas sensitive layer is prerequisite to implement its application to micro-gas sensor field. Based on the nonlinear elastic theory and the assumption that the magnetostrictive effect is equivalent to the effect of body force loaded on GMF, a low magnetic field static magnetomechanical coupling model of cantilever double layer GMF with gas sensitive layer is established and mathematics relationship between magnetic field and displacement of cantilever GMF is resolved. The correctness of mathematics relationship between magnetic field and displacement is validated by experiments on TbDyFe/PI/SmFe and TbDyFe/Cu/SmFe of double layer GMF with gas sensitive layer. Experimental results indicate that the deflection curve model has better predictability and the GMF with gas sensitive layer exhibits larger magnetostrictive strains. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |