首页> 美国政府科技报告 >THIRD PROGRESS REPORT DESIGN AND DEVELOPMENT OF IMPROVED METHODS OF MOUNTING AND ATTACHING SUPPORTS WIRES TO LOW FREQUENCY RESONATORS
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THIRD PROGRESS REPORT DESIGN AND DEVELOPMENT OF IMPROVED METHODS OF MOUNTING AND ATTACHING SUPPORTS WIRES TO LOW FREQUENCY RESONATORS

机译:第三次进展报告设计和开发改进的安装和连接支持方法设计和开发低频谐振器

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摘要

The requirement for quartz crystal units operating at frequencies below 500 kc/sec is increasing, and the precision required is becoming greater. The present standard maximum temperature at which crystal units oust maintain specified performance is 80℃;however, current requirements make it nec¬essary to increase this limit to 100℃. Future applications of oven-controlled units will probably increase the temperature re¬quirements to 200°. These requirements for greater precision at higher operating tomp-cratures cannot be mat using the present technique of soft soldering the mounting wire to a fired silver spot an the quartz plate.

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  • 作者单位
  • 年度 1957
  • 页码 1-17
  • 总页数 17
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工业技术;
  • 关键词

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