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Method for plasma density measurement of magnetic confinement nuclear fusion experiment device

A plasma and experimental device technology, applied in measuring devices, specific gravity measurement, instruments, etc., to achieve the effect of fast response, fast speed, and easy monitoring of the experimental process at any time

Inactive Publication Date: 2016-08-10
HEFEI UNIV OF TECH
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Problems solved by technology

[0016] The purpose of the present invention is to provide a plasma density measurement method of a magnetic confinement nuclear fusion experimental device, to solve the problems existing in the plasma density measurement in the magnetic confinement nuclear fusion experimental device of the prior art

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  • Method for plasma density measurement of magnetic confinement nuclear fusion experiment device
  • Method for plasma density measurement of magnetic confinement nuclear fusion experiment device

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Embodiment Construction

[0051] Such as figure 1 , figure 2 As shown, a method for measuring and calculating plasma density of a magnetic confinement nuclear fusion experimental device includes the following steps;

[0052] S1. Use the HCN laser interferometer to generate two sets of beams, one of which passes through the plasma, which is called beam 1, and the other beam is used as a reference track, called beam 2, and the beam 1 is converted by the TGS detector to obtain an electrical signal, which is called The measuring track signal D1, the beam 2 is transformed by the TGS detector to get another set of electrical signals, which is called the reference track signal D2;

[0053] S2. When the discharge experiment starts, the AD converters are used to sample D1 and D2 respectively. When the measurement track signal D1 and the reference track signal D2 have collected data of 1000 points, the measurement track signal D1 and the reference track signal D2 are respectively compensated. Add 24 0s to for...

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Abstract

The invention discloses a method for plasma density measurement of a magnetic confinement nuclear fusion experiment device. The method comprises a step S1 of using an HCN laser interferometer to generate two groups of light beams; a step S2 of sampling D1 and D2 respectively through discharging experiments, and decamping D1 and D2 into multi-segment data; a step S3 of drawing an area A and an area B which have an identical function in a programmable logic gate array; a step S4 of causing the area A to receive data 1 and causing the area B to be standby; a step S5 of causing the area A to process the data 1, sending results into a storage and display device, and causing the area B to receive data 2; a step S6 of causing the area A to receive data 3 to cover the data 1, causing the area B to process the data 2, and sending results into the storage and display device; and a step S7 of repeating steps S5-S6 until the experimental process comes to an end. According to the method, the system response speed is quick, the response time is determined, and a hardware circuit is simple in structure, not subject to interference easily, easy to maintain and replace, low in cost and good in universality.

Description

technical field [0001] The invention relates to the field of magnetic confinement nuclear fusion experimental devices, in particular to a method for measuring plasma density of a magnetic confinement nuclear fusion experimental device. Background technique [0002] In magnetic confinement nuclear fusion experimental devices such as tokamak devices and stellarators, plasma density is an important physical quantity in plasma physics research. It is an important parameter to characterize plasma characteristics. HCN is usually used in experimental devices Instruments such as laser interferometers measure plasma density. [0003] In a specific application, the HCN laser interferometer is used to generate two sets of beams, one of which passes through the plasma, which is called beam one, and the other beam is used as a reference track, called beam two. The first beam is converted by the TGS detector to obtain an electrical signal, which is called the measurement track signal D1;...

Claims

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Application Information

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IPC IPC(8): G01N9/24
CPCG01N9/24
Inventor 舒双宝许崇杨王晓旭严谨
Owner HEFEI UNIV OF TECH
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