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- A Differential Laser Doppler System for MEMS Motion Measurements 用于微机电系统运动检测的激光差动多普勒技术
- The technique of using a conical scanning manner known as velocity azimuth display based on single laser Doppler velocimetry (LDV) system is described. 由这些测得的矢量可反演大气风场群速的速度矢量。
- Ultralow Speed Measurement by Laser Doppler Velocimetry[J]. 引用该论文 郭继华;徐正奇;殷纯永.
- Dual light path Laser Doppler Vibrameter System that can meet the out-of-plane vibration measurement for the slope plane and any curved surfaces is first proposed. 首次提出双路激光多普勒系统,它能适应倾斜平面、任意曲面的离面振动测量。
- Discuss techniques of avoiding spectrum aliasing of the PW Doppler system. 讨论怎样避免PW多谱勒系统的频谱混叠。
- laser Doppler system 激光多普勒系统
- The blood flow of cauda equina was measured with laser Doppler flowmeter. 应用激光多普勒血流仪检测马尾神经血流量。
- A small MEMS component vibration measuring system using heterodyne laser Doppler technology is proposed. The frequency bandwidth is properly determined by analyzing the frequency of Doppler signal. 提出了一种MEMS构件微小振动、位移测量系统 ;采用外差法激光多普勒技术 ;通过对信号的频谱分析 ;确定了信号处理单元的适宜频带宽度 .
- Furthermore, the scattering model and the performance of the glass bead are analyzed, which provides the important basis for designing the optical system of the Laser Doppler Vibrameter. 分析了玻璃微珠的散射模型和性能,为测试系统光路设计提供了重要依据。
- Demonstrating the reliability and accuracy of the Doppler system, the rotation ofan electromotor and the reciprocating motion of an accelerometer calibrator aremeasured first. 测量了电动机转轴转速和加速度计校准仪的往复振动,验证了实验系统的可靠性和准确性。
- ABSTRACT> It is indicated experimentally that the receiving transducer in pulsed Doppler system should possess a broad band to get complete information about blood flow. 本文用实验方法证明,超声脉冲多普勒系统的接收换能器应有宽的频带,才能获得血流信息的全貌。
- Methods: Using laser Doppler flowmetry to measure thechange of cochlear blood flow on superior cervical ganglion. 方法:用激光多普勒测量颈上神经节切除前后耳蜗血流变化。
- Based on Michelson interferometer,the laser Doppler effect experiment instrument is designed. 通过对迈克耳孙干涉仪动镜的改装和机械加工;设计了激光多普勒效应实验装置.
- The Cram?r Rao Bound (CRB) for the frequency estimation from Laser Doppler Anemometer (LDA) measurements is derived. 本文推导了激光多普勒测速 (LDA)频率估计的Cram r Rao下限。
- Laser Doppler vibrometer (LDV) has a potential application prospect in remote sensing. 激光多普勒振动计在遥感探测方面具有潜在的应用前景。
- The principle of Laser Doppler Velocity (LDV) and the method of back scattering are presented. 介绍了激光多普勒测量技术的原理和后散射型固体表面测量方式。
- The fuze is provided with some Anti-jamming function by means of instantaneous time average zero-over rate representing Doppler signal's frequency of continuous wave radio Doppler system fuze. 用短时平均过零率表征连续波多普勒体制无线电近炸引信多普勒信号频率,使引信具有一定的抗干扰能力。
- The principle of large-scale diameter measurement with laser Doppler technique(LDT) is presented in this paper. 介绍了激光多普勒技术用于大尺寸直径测量的原理,并据此设计了新型差动激光多普勒大尺寸直径测量系统。
- At the same time,laser Doppler perfusion imaging of dorsum pedis was significantly improved(P<0.01). 同时激光多普勒血流灌注量与踝肱指数存在直线正相关(P<0.;01)。
- Using the way of homodyne coherent detection, a fiber laser Doppler vibrometer is designed and completed. 采用零差的相干探测方式,设计并实现了一套光纤结构的激光多普勒振动计。