Analog seismic signal generator

The utility model discloses an analog seismic signal generator and relates to a general detection device of a seism instrument system. The analog seismic signal generator is composed of an input interface, a power source interface, an automatic voltage regulation (AVR) + field programmable gate array (FPGA) data processing module, four kinds of working modules, a section-type liquid crystal displayer, a keyboard + knob coder, and an output interface. The input interface, the AVR + FPGA data processing module, the four kinds of working modules, and the output interface are connected in sequence. The section-type liquid crystal displayer and the keyboard + knob coder are respectively connected with the AVR + FPGA data processing module. The power source interface respectively supplies power to each functional component. The four kinds of working modules comprise a routine waveform output device, a common waveform output device, a seismic waveform output device, and a frequency measurement counter. According to the analog seismic signal generator, a detection device and a detection procedure of the seism instrument system are simplified; real seismic waveform data can be stored and output; and the analog seismic signal generator is applicable to detect the capacity that the seism instrument system identifies interference signals, so that reliability of the seism instrument system is improved.