All fiber photonic Doppler velocimeter

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Vue d'ensemble

The Photon Doppler Velocimeter (PDV) is based on the optical Doppler effect, using optical fibers to transmit optical signals and utilizing optical interference mixing technology to obtain velocity information of objects. The entire system adopts all fiber connection, which not only improves the stability and reduces the volume of the system, but also, due to the use of high-performance single-mode fiber, the response time of the system is no longer limited by fiber dispersion, and speed measurement with a time resolution of 50 ps can be achieved. The structural composition of the interferometer host has been verified and optimized through high-speed experiments, achieving a signal-to-noise ratio of * and effectively reducing speed measurement errors.

Détails du produit

Introduction:

Photon Doppler velocimeterPDVBased on the optical Doppler effect, single-mode optical fibers are used to transmit optical signals, and optical interference mixing technology is used to obtain continuous velocity information of objects.

Technical Specifications:

parameter	indicator
Speed measurement range	0.1-10000m/s
working wavelength	1550nm
Laser output power	500mw
response time	50ps
Relative speed measurement error	＜1%
Measure depth of field	1-500mm
Power supply demand	220V±20V50Hz
Operating Temperature	5-50℃
Number of measurement channels	1. 2, 4, 8, 16

Application fields:

　　Photon Doppler velocimeterPDV shock wave physics, detonation physics, internal ballistics research, new materials science, interaction between high-energy laser particles and materials, space science, geological science, medical diagnosis and other fields have a wide range of applications.

Users: Laser Fusion Research Center of China Academy of Engineering Physics, State Key Laboratory of Explosive Science and Technology of Beijing University of Technology, Hunan University, University of Science and Technology of China, Southwest University of Science and Technology, Institute of Mechanics of Chinese Academy of Sciences, etc.

Features:

◆ Full fiber structure, no need for fiber delay lines, simple and compact structure, small size, good stability

◆ Can be transmitted over long distances and reach places with severe pollution that cannot be reached by conventional optical paths

◆ Fast response speed

◆ High speed measurement accuracy

◆ It can measure the motion speed of any reflective surface object and measure uniform motion

◆ Wide bandwidth, no stripe loss

◆ Large measurement depth and long tracking distance

The optical probe adopts a modular structure, which is easy to replace and reduces experimental costs

Easy to upgrade to a multi-point testing system with low upgrade costs

Powerful and user-friendly data processing software

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