【摘要】 地磁观测资料的连续性非常重要 ,为解决滚筒停转报警问题 ,本文详细介绍了使用光电转换的地磁光记录滚筒停转报警器的工作原理和制作方法 ,提供了电原理图 ,以供参考或制作。更多还原

【Abstract】 The continuity of geomagnetic observation is of great importance.In order to solve the problem of cylinder’s breakoff,the operation principle of Rotatio-breakoff Alarm for photo-recording cylinder of Geomagnetism is introduced in detail,and the method how to make it is presented.The circuit diagram is provided for reference and manufacture.更多还原