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由于检波器运动方程未能解出，使得检波器和地面的耦合关系一直未得到解释．现用拉氏变换将其解求出，发现检波器输出电位信号不仅包括地下反射波的振动，也包含检波器自然频率的振动．在作信息处理时，必须首先消去检波器自然频率的振动．检波器有选频作用，地震波的频率越接近检波器的自然频率，输出信号越强．提高检波器灵敏度、减小阻尼和增大检波器自然频率可以增强输出信号．野外接收地震信号要用可变自然频率的检波器或用多个不同自然频率的检波器组合．
Since the detector equation of motion can not be solved, the coupling between the detector and the ground has not been explained. Laplace transform is now used to find its solution and found that the output signal of the detector not only includes the underground reflection of the vibration, but also contains the detector natural frequency vibration. When doing information processing, you must first eliminate the detector natural frequency vibration. The frequency selective effect of the detector, the closer the frequency of the seismic wave to the natural frequency of the detector, the stronger the output signal. Increasing the detector sensitivity, damping and increasing the natural frequency of the detector enhance the output signal. Field reception of seismic signals using a variable natural frequency detector or with a combination of different natural frequency detector.