The Laser Doppler Techniquedoi:10.1080/713820168F. WoodhamsOptica Acta: International Journal of OpticsDrain, L.E. (1980). The Laser Doppler Technique. Wiley & Sons, New York. ISBN 0-471- 27627-8.L. E. Drain (ed.), The Laser Doppler Technique (Wiley- Chichester, New York, 1980), ...
The laser Doppler method is based on the fact that moving objects cause scattered light to be shifted in frequency. A Doppler measurement is a measurement of instantaneous particle velocity, not a measurement of a change in concentration at various locations in the apparatus during electrophoresis. ...
Doppler laser Related to Doppler laser:laser velocimeter n. A technique that detects the frequency shift between the source and reflected waves of a laser, used in calculating the relative speed difference between the laser source and reflecting object. ...
a激光多普勒测速是一种非接触式测量技术,当光射向一个运动的物体,由运动物体散射出来的光与入射光相比,频率会发生变化,这个变化的大小与物体运动速度以及照射光与速度方向之间的夹角有关。 The laser Doppler velocity measurement is one kind of non-contact survey technology, when the photoemission to a movement...
Laser Doppler flowmetry in evaluation of cutaneous wound blood flow using various suturing techniques. Measurements of blood flow on either sides of abdominal incisions and of uninjured control skin in 63 patients with three kinds of suturing techniques (clips in 21 patients, mattress in 21 patients...
A. the speeds of space vehicles will vary greatly B. accurate measurements are essential in space C. inaccuracies in measurement could cause accidents in space D. all of the above 相关知识点: 试题来源: 解析 D 正确答案:D 解析:文中第二段第二句、第三句说:“据正在开发这个系统的科学家说,...
Movement artifact reduction in laser Doppler blood flowmetry : myocardial perfusion applications Laser Doppler perfusion monitoring (LDPM) and imaging (LDPI) enable assessment of tissue microvascular perfusion. The techniques are based on the Doppler broadening of the optical spectrum occurring when coherent...
百度试题 结果1 题目Laser-doppler radar ___. A. measures the movements of a spaceship by means of light beam B. makes use of microwaves C. makes use of sound waves D. Both A and B 相关知识点: 试题来源: 解析 A 反馈 收藏
Interferometric dynamic measurement: techniques based on high-speed imaging or a single photodetector Thelaser Doppler velocimeterwas operated in the dual-beam near full backscatter mode and is composed of a 600 mW argon-Ion laser, a diffraction-grating unit to divide the light beam into two equal...
The laser Doppler speed detection, through optical heterodyne detection to detect the Doppler frequency shift to calculate volume to be measured pace movement of objects. Therefore, light source in addition to the need to meet the requirements, space access has been poor mixing detection is also re...