时间是最基本的物理量之一。在地震波的记录方面,时间标志精度和同步尤其显得重要。在地震转换波资料分析中,要求各个台站上的记录都能记上一个或数个同一时刻的时标信号。由于台站分散且各台站时钟的累计时差不一致,即使校准很勤仍不能得到满意的时间服务。过去,多利用广播电台的授时信号经过简单处理后进行人工对时。人工对时不仅浪费人力、特别是当播发授时信号的同时伴有语言或音乐信号时,对时往往不能凑效。本文介绍的自动对时器克服了上述缺点,可以无人值守自动对时。它能在语音和其他干扰信号中有效 Time is one of the most basic physical quantities. Time stamp accuracy and synchronization are particularly important in the recording of seismic waves. In the analysis of seismic wave data, it is required that records on all stations record one or more time-scale signals at the same time. Due to the scattered stations and the inconsistency of the accumulated time differences between stations’ clocks, satisfactory time services can not be obtained even if the calibration is very hard. In the past, multi-use radio signal timing after simple processing of artificial time. Artificial time is not only a waste of manpower, especially when the broadcast signal timing signal accompanied by a language or music signal, the time often can not work together. This article describes the automatic timer to overcome the above shortcomings, unattended automatic timing. It can be effective in voice and other interfering signals