A measuring device and measuring method suitable for quasi-isentropic compression of mc-1 cylinder

Abstract

The invention discloses a measuring structure and a measuring method applicable to MC-1 cylinder quasi-isentropic compression. The measuring structure comprises a metal cylinder and an internal cylinder quasi-isentropic compression target. A measuring probe is mounted in the cylinder quasi-isentropic compression target. The measuring points of multiple laser velocity measurement optical probing needles of the measuring probe and multiple magnetic-induction coils are positioned on the middle plane of the cylinder quasi-isentropic compression target. The laser velocity measurement optical probing needles, the magnetic-induction coils, a supporting and locating rod and an insulating protection sleeve are arranged in the measuring probe. The measuring structure and the measuring method have the advantages that the inner wall velocities of sample targets are measured according to a laser velocity measurement technology, and interface velocity histories of to-be-measured materials and standard materials are measured according to the magnetic induction principle; the acquired free surfaces and the acquired interface velocity histories are subjected to data processing through magnetohydrodynamics coding, and accordingly, high-precision high-pressure physical property data of to-be-measured insulating materials are acquired. By the measuring structure and the measuring method, the problem of limited measuring data and low accuracy in existing MC-1 quasi-isentropic compression physical experiments is solved.

Description

technical field [0001] The invention relates to the research field of compression science experiment technology, in particular to a measurement structure and a measurement method suitable for MC-1 cylinder quasi-isentropic compression technology. Background technique [0002] Cylindrical implosion magnetic flux compression generator (hereinafter referred to as MC-1) uses the explosive explosion to drive the metal cylinder to compress the initial magnetic flux in its cavity, and converts the explosive chemical energy into magnetic field energy, so that it accumulates in the volume near the axis. Form a super-strong magnetic field and realize quasi-isentropic compression on the sample target in it, which has the characteristics of high loading pressure (TPa), low temperature rise (1000K order), large sample size and good isentropy. [0003] At present, when using MC-1 to carry out quasi-isentropic compression material physics experiments in the world, the flash photography tec...

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Problems solved by technology

[0006] The object of the present invention is to provide a kind of measuring device and measuring method that are suitable for MC-1 cylindrical surface quasi-isentropic compression, solve the measurement data amount that existing MC-1 quasi-isentropic compression physical experiment exists is limited, be difficult to obtain interface and simultaneously The problem of free surface velocity, and the problem of low measurement accuracy

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