...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Review of Scientific Instruments >Design of Extensometer for Creep Studies
【24h】

Design of Extensometer for Creep Studies

机译：蠕变研究引伸计的设计

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The extensometer permits remote operation over a wide range of extensions. The creep specimen is mechanically coupled to a metal core within a mutual inductance bridge. The amount of deformation of the creep specimen determines the position of the core and thus the amount of bridge unbalance. The tolerances of mutual inductance bridges being imperfect, a residual voltage remains which is 90° out of phase with that produced by displacements of the core. A core which produces an output voltage 90° out of phase with the voltage produced by a steel core has been made with laminations of copper and steel. By connecting two bridges in series, one containing a steel core and the other the composite core, the null has been reduced to the noise level of the amplifier to which the bridge system is connected. Requirements for making the phase angle of the bridge signal approximately independent of core position, over the extension range, are discussed.
机译：引伸计允许在广泛的扩展范围内进行远程操作。蠕变样品在互感桥内机械耦合至金属芯。蠕变样品的变形量决定了岩心的位置，从而决定了桥梁不平衡的程度。互感电桥的容差是不完美的，剩余的残余电压与铁芯位移产生的残余电压异相90°。用铜和钢的叠层制成了一个芯，该芯产生的输出电压与钢芯产生的电压异相90°。通过串联连接两个桥，一个桥包含一个钢芯，另一个桥包含复合芯，零点已降低到与桥系统相连的放大器的噪声水平。讨论了在扩展范围内使电桥信号的相位角近似独立于磁芯位置的要求。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号