With the Doppler laser vibration measurement system, the vibration velocity curves of the flip chip and tool tip were obtained during thermo-sonic flip chip bonding.
采用多普勒激光振动测量系统，获得了热超声倒装键合过程中工具末端及芯片的振动速度曲线。
This paper presents a compact laser diode doppler interference system used in velocity measurement. The velocity measurement accuracy and application of the system are discussed.
本文就半导体激光小型多普勒干涉系统的研制及作为速度测量系统的测量精度和实用可行性进行了探讨。
Laser Doppler velocity is widely used in the measurement field of velocity for its high accuracy and easy-used property.
激光多普勒测速以其高精度、使用方便而在速度测试领域得到广泛的应用。
In order to achieve high accurate measurement of object's velocity, a laser Doppler velocity radar system is established and the frequency estimation algorithm is investigated.
为了实现高准确的测量对象的速度，激光多普勒测速雷达系统建立和频率估计算法研究。
Based on the layered phase grating and revolving field discrimination, a laser Doppler vibrometer system has been studied which provides a potential method of velocity measurement.
本文借助于层栅理论和琼斯矢量综述其机理方面的理论与实验研究工作，并举例说明基于旋转场辨向各种测试手段中信号叠加方案的一般分析方法。
Based on the layered phase grating and revolving field discrimination, a laser Doppler vibrometer system has been studied which provides a potential method of velocity measurement.
本文借助于层栅理论和琼斯矢量综述其机理方面的理论与实验研究工作，并举例说明基于旋转场辨向各种测试手段中信号叠加方案的一般分析方法。
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