摘要
为了进一步改进机械手信号采集的效果,文中进行了一种信号采集电路的改进设计,采用了1221x-002芯片完成传感电路,应用仪表AD620放大器实现前置放大,在滤波电路中应用频谱整形滤波器实现信号补偿,整形滤波具有以下特点:在实际的分辨率为7.4m^45.7m情况下,经过频谱整形滤波器滤波以后分辨率为5.6m^34.1m,分辨率得到明显的提高,即浅层和中层反射分辨率明显提高,但对深层反射率影响不大,这一研究对于改进信号采集的滤波效果具有一定的意义。
In order to further improve the effect of data acquisition of seismograph,which was an improved design of signal collection circuit,sensing circuit with 1221x-002 chip,AD620 amplifier realizes preamplifier,in filter circuit realization of signal using spectrum shaping filter transfer function compensation for their amplifier. Plastic filters have the following characteristics: in the actual resolution of 7. 4m ~ 45. 7m cases,following resolution of 5. 6m ~ 34. 1m spectrum shaping filter,the resolution significantly increases,the shallow and middle-level reflection resolution are significantly higher,but the rate has little effect on the deep reflection. This research for improved signal acquisition of the filter effect is of some significance.
出处
《信息技术》
2017年第4期68-70,共3页
Information Technology
基金
国家自然科学基金(60208004)
关键词
传感
放大器
整形滤波
分辨率
sensing
amplifier
plastic filtering
resolution
