Multi-core fiber assembly for blast shock test

Abstract

The invention provides a multi-core fiber assembly for a blast shock test, belonging to the field of optical test technology. The multi-core fiber assembly comprises a housing, a baffle plate, a reinforcing plate and a bearing baffle plate. The baffle plate, the reinforcing plate and the bearing baffle plate are arranged in the housing. An outer wall of the housing is provided with an annular boss. A central section of core space of the housing is provided with a first annular groove. Two ends of the core space of the housing are provided with a second annular groove and a third annular groove respectively. An outer wall of one end of the third annular groove of the housing and an inner wall of a threaded pressing sleeve form sliding cooperation. An outer wall of the threaded pressing sleeve is provided with screw thread used for forming screw-thread cooperation with a container window. A press ring is arranged between the threaded pressing sleeve and the annular boss. The baffle plate, the reinforcing plate and the bearing baffle plate are provided with a corresponding through hole respectively, and a fiber jumper wire passes through the through holes. According to the invention, under a blast load, while a test requirement is satisfied, leakage of poisonous and harmful gas can be effectively prevented simultaneously, thus a test apparatus and surrounding environment are effectively protected.

Description

technical field [0001] The invention belongs to the technical field of optical testing, and in particular relates to a multi-core optical fiber sealing assembly with high sealing performance under explosive impact loads, which can be applied to optical testing of toxic and harmful gases in shock wave physics, detonation physics, etc. in various scientific experiments and researches. experiment. Background technique [0002] In shock wave physics and detonation physics experiments, due to the characteristics of fast response and no electromagnetic interference, the optical probe has been used at home and abroad to measure the velocity of the flyer, the flatness of the flyer, the velocity of the shock wave and the speed of sound in the sample, and to measure the speed of the flyer. Layer and detonation wave waveform at a certain moment, etc. Since many materials will produce highly toxic gases in the explosion experiment, the experiment needs to be carried out in a sealed exp...

AI Technical Summary

Problems solved by technology

Since many materials will produce highly toxic gases in the explosion experiment, the experiment needs to be carried out in a sealed explosion container. The experimental device is placed in the container, and the transmission optical fiber is led out through the container window. In this way, the transmission optical fiber needs to be sealed. There are reports on multi-core optical cables and multi-core connectors abroad, but there is no report on the high-seal multi-core optical fiber sealing components that are used to seal toxic and harmful gases and resist explosion shocks in detonation experiments.

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