The Research On The Seismic Wave Detection Technology Based On Photoelectric Sensor

In recent years, earthquakes and other natural disasters occur frequently and bring great impact to human life. Therefore, how to reduce the impact of the earthquake on the human has become an urgent problem need to address.This paper analyzes principle of the pendulum picking up vibration, combined with the characteristics of the seismic waves, the mechanical structure of horizontal and vertical seismographs is designed. The seismic wave detection technology is studied by using the light-sensitive characteristics of PSD when light exposure to the surface to convert the vibration signal into an electrical signal for processing. The seismic-picking system is modeled and simulated by Simulink, error is calculated, and factors may cause error is analyzed and a solution is put forward.The simulation results show that: the seismic wave cycle can be accurately detected by the seismic wave detection system designed in this paper, and the amplitude detection accuracy up to0.9%to1.4%.