【摘要】 介绍一种利用32路开关芯片及电阻分压网络将直流信号直接转换为交流信号的方法,由于开关管的响应时间很短,因此,振荡器的频率能够达到100kHz以上。通过实验表明,该振荡电路正弦信号具有信号周期稳定、重复性高等特点,适合作为地学仪器的振荡源。更多还原

【Abstract】 This paper introduces a new method with which the DC signal can be directly converted to AC signal by using a 32 pathways switch chip.Because the response time of the switch chip is very short,oscillator frequency can reach more than 100 kHz.The experiment show that the oscillating circuit sine signal has characteristics of the stability of signal cycle,higher repeatability and is suitable for the oscillation source as a geological instrument.更多还原