基于声卡和LabVIEW的地震信号采集系统
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摘要
介绍了声卡的技术参数和硬件结构以及声卡数据采集系统的软件实现方式。用计算机声卡代替普通采集卡作为硬件,用数据分析和处理功能强大的工程实用软件LabVIEW作为软件开发平台,设计了一个较高采样精度、中等采样频率、灵活性好的数据采集系统,实现数据采集、显示、存储与信号分析(时域分析和频域分析)等功能,并以此为平台实现了地震信号的外触发和连续方式的采集,该系统已用于实验课程的教学中。
This paper first introduced the hardware features and software features of the sound card.Taking the computer sound instead of current acquisition card as hardware and the engineering software LabVIEW that analysis and processing function is very powerful as software development platform,a kind of sound card acquisition system with higher sampling precision,middling sampling frequency and better flexibility is designed.It has realized several functions such as data acquisition,display,data store,signal analysis (i.e.time-domain analysis and frequency-domain analysis)and so on.The seismic signal has carried out with the system used external trigger or continued acquisition.The system has been used in experiment course teaching.
This paper first introduced the hardware features and software features of the sound card.Taking the computer sound instead of current acquisition card as hardware and the engineering software LabVIEW that analysis and processing function is very powerful as software development platform,a kind of sound card acquisition system with higher sampling precision,middling sampling frequency and better flexibility is designed.It has realized several functions such as data acquisition,display,data store,signal analysis (i.e.time-domain analysis and frequency-domain analysis)and so on.The seismic signal has carried out with the system used external trigger or continued acquisition.The system has been used in experiment course teaching.
引文
[1]龙帆,钱利民等.基于LabVIEW和声卡的扬声器检测系统的设计和实现.微计算机信息[J].2006,7:90-92.
[2]师学明,李永涛等.声纳测深的实验与教学改革浅析[J].实验室研究与探索.2007,26(8):17-19+133.
[3]杜小军,李素有.声卡数据采集在模型验证试验中的应用.科学技术与工程[J].2007,7(4):517-520.
[4]康建华,王保强等.基于虚拟仪器的雷电定位方法研究.电子测量与仪器学报[J].2007增刊:515:518.
[5]兰波,陈春俊等.基于声卡的摩擦噪声测试分析系统.中国测试技术[J].2007,23(6):58-60.
[6]王步青,王卫东.基于LabVIEW心电信号的采集与分析系统.医疗卫生设备[J].2006,27(10):26—28.
[7]马学知,罗送荣等.基于LabVIEW的齿轮故障测试系统.湖南文理学院学报(自然科学版)[J].2007,19(1):84-86.
[8]尹秉奎,徐敏等.基于LabVIEW的噪声测试分析仪.现代制造工程[J].2006,09:87-89.
[2]师学明,李永涛等.声纳测深的实验与教学改革浅析[J].实验室研究与探索.2007,26(8):17-19+133.
[3]杜小军,李素有.声卡数据采集在模型验证试验中的应用.科学技术与工程[J].2007,7(4):517-520.
[4]康建华,王保强等.基于虚拟仪器的雷电定位方法研究.电子测量与仪器学报[J].2007增刊:515:518.
[5]兰波,陈春俊等.基于声卡的摩擦噪声测试分析系统.中国测试技术[J].2007,23(6):58-60.
[6]王步青,王卫东.基于LabVIEW心电信号的采集与分析系统.医疗卫生设备[J].2006,27(10):26—28.
[7]马学知,罗送荣等.基于LabVIEW的齿轮故障测试系统.湖南文理学院学报(自然科学版)[J].2007,19(1):84-86.
[8]尹秉奎,徐敏等.基于LabVIEW的噪声测试分析仪.现代制造工程[J].2006,09:87-89.
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