摘要
论述了一种新型适合高分辨率地震勘探的高灵敏度、低失真度的高精度地震检波器,主要对这种检波器弹性系统进行了研究,包括弹性系统的动力学特征和阻尼特性,对所设计的弹簧片进行了疲劳强度校核。实验表明:所设计的弹性系统对加速度的变化有良好线性响应,其工作频率为10Hz,基于此弹性系统的检波器特性参数为:频率=10Hz±2.5%,灵敏度=280mV/cm±2.5%,阻尼=0.7,失真度<0.5%。
In this paper we discuss a type of new geophone with higher sensitivity and lower distortion degree.This paper is mainly about the analyses on the spring system.It includes dynamics and damping properties.Spider spring is designed and tested to check the fatigue strength of the structure.The experiment shows that the spring system has excellent linear response to the change of acceleration at the frequency of 10Hz.The parameters of this geophone are as follow:frequency;sensitivity;damping;distortion.
出处
《石油仪器》
2012年第5期4-6,9,共4页
Petroleum Instruments
基金
石油天然气装备教育部重点实验室项目(2004STS04)
关键词
检波器
磁场
灵敏度
弹性系统
geophone
magnetic field
sensitivity
spring system
