Bj?rn F. MagnussenElsevier B.V.Letters in Heat and Mass TransferB. H. Hjertager and B. F. Magnussen, Laser-doppler velocity measurements in the three-dimensional flow of a jet in a square enclosure. Report NTH (1978); Lett. in Heat Mass Transfer (1981)....
Velocity measurements of sputtered particles using the Laser-Doppler methodExperimental/ measurement by laser beamparticle beamsvelocity measurement/ sputtered particlesenergy analysisvelocity measurementsDoppler shift laser spectrometer/ A0630G Velocity, acceleration and rotation measurement A4180 Particle beams and...
The paper outlines a fundamental theory for laser Doppler velocity measurements of large surfaces which partly or totally reflect or refract light from two coherent laser beams impinging onto the surface at different angles. Relations for spatial displacement velocity of large moving spherical bodies are...
An industrial laser Doppler velocimeter has been developed for accurately measuring the velocity and length of moving surfaces. The instrument's advanced optical and electronic design provides a large depth of field, high SNR, and large dynamic range making it very suitable to industrial process contr...
Laser Doppler velocimetry is optical length & speed measurement according to the principle of the laser Doppler effect. More about the principle!
A description of the historical development of the laser anemometer is presented, taking into account the first measurement of laser Doppler shift, the single-beam laser anemometer, the standard dual-beam laser anemometer, the self-aligning dual-beam laser anemometer, and the fringe model of the ...
A new Ice Erosion Tunnel was provided for performing the ice particle size and velocity measurements. Both techniques of Holography and LDV were employed. The former was used to measure particle size, and the latter, to measure particle velocity. Automatic data retrieval of particle size from reco...
A 1-GHz optical heterodyne receiver was used with a tunable, frequencyoffset local oscillator to compensate for Doppler shifts of as much as 4 GHz.关键词: Doppler Effect High Speed Laser Targets Solid State Lasers Velocity Measurement Yag Lasers Calibrating Circular Plates Energy Conversion Efficiency...
The precise measurement of the flow rate of natural gas is of vital economical importance since natural gas contributes highly to the total energy mix. In this paper we report about a laser Doppler velocity profile sensor specifically designed to suit the measurement conditions at the optical test...
Laser Doppler Vibrometry (LDV) is a non-contact method, which is commonly used for vibration measurements. The work presented consists of an investigation into the use of LDV to measure vibrations of a rotating tool in a milling machine, and the effects of speckle noise on measurement quality....