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本文主要介绍用液晶显示电子手表来研制地震记录仪的计时装置和机械传动机构的动力信号源。因地震记录仪要求工作环境温度宽,时间精度高,所以,一般的电子手表若被简单地应用,是难以满足地震仪器的技术指标要求的。为此,另外研制一种频率稳定度比较高的1048.576KC的温度补偿晶体振荡器来取代电子手表中频率稳定度比较低的32.768KC晶体振荡器,并保持其原有IC集成度高、线路简单、体积小、功耗低等优点。同时,为了提高计时精度,消除钟的积累误差,还设有自动对时装置,供与授时台校准标准时间,从而使其各项技术指标均达到满足要求之目的。
This article mainly introduces the use of liquid crystal display electronic watch to develop the timing device of seismic recorder and mechanical power transmission mechanism power signal source. Due to the requirement of the seismic recorder that the working environment has a wide temperature range and high time precision, the general electronic watch, if simply used, is difficult to meet the technical requirements of seismic instruments. To this end, in addition to the development of a higher frequency stability of 1048.576KC temperature compensation crystal oscillator to replace the electronic watch low frequency stability 32.768KC crystal oscillator, and maintain its original IC high integration, simple circuit , Small size, low power consumption and other advantages. At the same time, in order to improve timing accuracy and eliminate the accumulation of clock error, but also with automatic timing device for calibration with the standard time granted Taiwan, so that the various technical indicators have to meet the requirements of the purpose.