嵌入式多功能地震检波器测试仪的研究

发布时间：2018-04-01 00:37

本文选题：地震检波器　切入点：测试仪　出处：《天津科技大学》2015年硕士论文

【摘要】：在煤炭和石油等矿产资源的地震勘探中,地震检波器是用于接收地震信息的首要环节,检波器的性能优劣直接影响到地震勘探的后续环节和最终结果的准确性。由于能源勘探的难度越来越大,宽频地震检波器和高精度的传统检波器不断被应用,检波器的指标控制也愈加严格。因此需要专用的检波器测试仪对检波器从半成品到成品进行检测,控制好检波器的质量,提高地震勘探质量。本课题研究设计的地震检波器测试系统在测量宽频地震检波器的同时也可以测量传统地震检波器,实现检波器多功能多参数的测量。本课题主要完成的工作如下:第一,在研究动圈式地震检波器的工作原理和其机械结构的基础上,确定了过阻尼检波器和欠阻尼检波器的测试方法,完成了检波器测试系统的整体测试模型的建立。第二,根据构建的测试模型,对测试仪的硬件电路进行研究设计,硬件电路包括前置电路、数据采集电路、主控电路及外围设备模块。采用了 TI公司的MSP430F2274单片机构成数据采集板,三星公司的ARM11内核S3C6410构成嵌入式系统板,完成了 PCB板的设计制作。第三,对检波器测试仪的软件进行设计,完成了系统模块化程序、控制程序和通讯程序的编写,实现了对测试系统的数据采集控制。结合测试仪的硬件设计,实现了对检波器直流电阻、阻尼系数、灵敏度和失真度等性能参数的测试。第四,完成了对地震检波器测试系统的性能测试。利用测试仪对宽频动圈式检波器和传统动圈式检波器的各项性能参数进行跟踪测量,将测试参数与标准参数进行比较,经验证符合检波器测试仪国家标准,并且测试仪的准确性、重复性、抗干扰等各项性能指标良好。本测试仪采用直流激励和交流激励组合的方式进行测试,应用程序运行在操作系统WINCE6.0的软件环境下,并采用设计的过阻尼检波器测试算法处理采集数据;它具有精度高,功耗小,人机交互界面良好等优点。
[Abstract]:In the seismic exploration of mineral resources such as coal and petroleum, seismic geophone is the primary link for receiving seismic information. The performance of geophone directly affects the follow-up link of seismic exploration and the accuracy of the final result. Because of the increasing difficulty of energy exploration, broadband seismograph and high-precision traditional geophone are used continuously. Therefore, a special geophone tester is needed to test the geophone from semi-finished product to finished product to control the quality of the geophone. To improve the quality of seismic exploration. The seismic geophone test system designed in this paper can measure the traditional geophone as well as the broadband seismometer. The main work of this thesis is as follows: first, on the basis of studying the working principle and mechanical structure of the movable coil seismograph, The testing methods of overdamped geophone and underdamped geophone are determined, and the overall test model of the geophone testing system is established. Secondly, according to the test model, the hardware circuit of the tester is studied and designed. The hardware circuit includes the front circuit, the data acquisition circuit, the main control circuit and the peripheral equipment module. The data acquisition board is composed of TI MSP430F2274 single chip microcomputer, the Samsung ARM11 kernel S3C6410 is the embedded system board, the hardware circuit is composed of the front circuit, the data acquisition circuit, the main control circuit and the peripheral equipment module. The design and manufacture of PCB board is completed. Thirdly, the software of geophone tester is designed, and the system modularization program, control program and communication program are completed. The data acquisition control of the test system is realized. Combined with the hardware design of the tester, the performance parameters such as the DC resistance, damping coefficient, sensitivity and distortion of the geophone are tested. The performance test of seismic geophone testing system is completed. The performance parameters of wideband coil geophone and traditional moving-coil geophone are tracked and measured by the tester, and the test parameters are compared with the standard parameters. It is proved to be in accordance with the national standard of geophone tester, and the accuracy, repeatability and anti-interference of the tester are good. The instrument adopts the combination of DC excitation and AC excitation. The application program runs in the software environment of operating system WINCE6.0, and uses the designed over-damping detector test algorithm to process the collected data, which has the advantages of high precision, low power consumption, good man-machine interface and so on.
【学位授予单位】：天津科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P631.436

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