摘要
激光多普勒测速技术具有非接触测量、动态响应快、精度高等优点,被广泛应用于科研领域和工业测量领域。在研究了国内外激光多普勒测速技术发展现状的基础上,提出采用虚拟仪器技术,使用图形化编程语言LabVIEW设计了激光多普勒测速系统。设计中简化应用程序的开发,提高应用程序的可靠性和可移植性;系统借助第三方数据采集卡的驱动函数完成多普勒信号的采集与处理。实验结果表明系统具有较好的灵活性和准确性。
With the advantages of non-contact measurement,fast dynamic response and high accuracy,the laser doppler velocimetry is widely used in scientific research fields and industrial measurement.Based on the research on the development status of laser dopplervelocimetry at home and abroad,a new system is proposed.In the system,virtual instruments is used,which simplifies the application development and improves the reliability and portability of applications program.By calling the DLL database function of the data card,the system realizes the doppler signal collecting and processing.The experiment results show that the system is feasible with the characteristics of accuracy and dependability.
出处
《国外电子测量技术》
2011年第5期48-50,54,共4页
Foreign Electronic Measurement Technology
关键词
虚拟仪器
激光多普勒测速
数据采集
virtural instrument
laser doppler velocimeter
data acquisition
