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Three-in-one photoelectric probe for impact and detonation experiment

A photoelectric probe, three-in-one technology, applied in the field of photoelectric sensor research, can solve problems such as experimental design and installation difficulties, experimental results analysis difficulties, and different installation locations.

Active Publication Date: 2014-08-13
INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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Problems solved by technology

The method used in the current experiment is to install three kinds of probes at the same time, because the number of probes (needles) required for the experiment is large, which brings difficulties to the experimental design and installation; at the same time, because the three kinds of probes are installed in different positions, it is also It is difficult to analyze the experimental results

Method used

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  • Three-in-one photoelectric probe for impact and detonation experiment
  • Three-in-one photoelectric probe for impact and detonation experiment

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Embodiment Construction

[0023] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0024] Such as figure 1 As shown, it is a three-in-one probe according to the present invention, which includes a copper sleeve 1, the length of which is 25mm-40mm, and a self-focusing rod 2 is arranged in the copper sleeve 1, and the self-focusing rod 2 adopts Made of quartz material, the focal length is between 15 mm and 50 mm; the front end of the self-focusing rod 2 is flush with the front end of the copper sleeve 1 . The back focal plane of the self-focusing rod 2 is connected to the input end of the one-to-two fiber optic beam splitter 8, in order to allow the one-to-two fiber optic beam splitter 8 to be stably connected to the back focal plane of the self-focusing rod 2, at one point The surroundings of the input end of the two-fiber beam splitter 8 are filled with a fixed block 3. In ...

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Abstract

The invention discloses a three-in-one photoelectric probe suitable for an impact and detonation experiment. The photoelectric probe consists of a self-focusing rod, a copper sleeve, an optical fiber and a copper conductive wire, and can be used for achieving the functions of a laser Doppler velocity measurement probe (PDV probe), an optical fiber probe needle and an electric probe needle at the same time. The probe disclosed by the invention is suitable for velocity continuous measurement and arrival time measurement of fly layer front-interface micro-spray particles and a main body in the impact and detonation experiment, and can be used for achieving simultaneous comparison measurement of laser interference velocity measurement, the optical fiber probe needle and the electric probe needle. The three-in-one photoelectric probe can be applied to the field of studies on high-pressure physical characteristics of materials, and has wide application prospects in the field of studies on shock wave physics, detonation physics, hydrodynamics and the like.

Description

technical field [0001] The invention belongs to the technical field of photoelectric sensor research, and in particular relates to a three-in-one photoelectric probe used in shock and detonation experiments. The invention is suitable for continuous measurement of the velocity of micro-sprayed particles and the main body at the front interface of the flying layer in shock and detonation experiments and time-of-arrival measurements. Background technique [0002] In shock wave physics and detonation physics experiments, in order to measure the velocity of the fly layer and the impact arrival time, researchers have developed a laser Doppler velocimetry system, a fiber optic probe system and an electrical probe system. Among them, the laser Doppler velocimetry system can continuously measure the velocity of the fly layer, the fiber optic probe and the electric probe can accurately measure the arrival time of the fly layer (or impact), and the average velocity of the fly layer can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02
Inventor 王荣波王德田周维军刘寿先吴廷烈田建华何莉华
Owner INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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