SC—C板 SC—C板是DSC1地震数据采集站的地震道板或前放板,接收地震检波器信号。由于检波器输出的信号中除了包含有有效的地震信号外,同时也包含着许多干扰信号(如噪音、面波等)。如将这些信号直接进行放大,这些干扰信号使有效的地震信号产生了严重的失真。为此,前置放大器对输入信号进行必要的线性放大,并滤除输入信号中的各种干扰。 SC—C工作原理 SC-C board The SC-C board is a seismic board or pre-board for the DSC1 seismic data collection station that receives geophone signals. As the signal output by the detector contains not only effective seismic signals, but also many interfering signals (such as noise, surface waves, etc.). If these signals are directly amplified, these interfering signals cause serious distortion of the effective seismic signal. To this end, the preamplifier linearly amplifies the input signal as necessary and filters out any interference in the input signal. SC-C working principle