b-dot probe and current spatial distribution measurement system based on pcb magnetic induction coil

A magnetic induction coil and current probe technology, which is applied in the direction of measuring devices, current only, and electrical variables, can solve the problems of large differences in B-dot sensitivity, difficulty in ensuring the consistency of B-dot magnetic induction coils, and inconvenient data analysis. , to achieve the effects of suppressing strong electromagnetic and high-energy electronic interference, good electrical connection, and simple structural design

Active Publication Date: 2018-01-19
NORTHWEST INST OF NUCLEAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the magnetic induction coil of the current B-dot probe is usually wound into a small ring with enameled wire or steel core cable. Beam Dynamics Study Brings Great Inconvenience

Method used

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  • b-dot probe and current spatial distribution measurement system based on pcb magnetic induction coil
  • b-dot probe and current spatial distribution measurement system based on pcb magnetic induction coil
  • b-dot probe and current spatial distribution measurement system based on pcb magnetic induction coil

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Experimental program
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Embodiment Construction

[0045] The present invention proposes a B-dot current probe that uses a small-size printed circuit board (PCB) as a magnetic induction coil. The core idea is that the magnetic induction coil of the B-dot probe adopts a double-layer PCB with upper and lower two layers of wiring, and the side is plated. tin. The wiring of the top layer of the coil starts from the center of the top layer of the PCB, and the wiring on the bottom layer of the coil ends in the tin-plated area on the PCB surface. The male TNC connector snaps into the notch of the PCB coil to lead out the measurement signal. The metal support ring 3 with rectangular grooves and the metal shielding cover 2 press the PCB type magnetic induction coil 1 from the upper and lower sides to ensure good electrical contact. A slit 7 is opened at the top of the metal shielding cover 2, and the direction of the slit coincides with the normal direction of the PCB coil to allow the magnetic field to enter the PCB coil. The cable c...

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PUM

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Abstract

The invention provides a B-dot probe based on a PCB type magnetic induction coil, and a current spatial distribution measuring system. A magnetic induction coil of the B-dot probe is clockwise or anticlockwise wired in the same direction on the circuit board, so that the PCB type magnetic induction coil is formed. Substantial advantages are achieved when an array formed by the plurality of B-dot probes is used to measure the current spatial distribution uniformity. A metal shielding cover is arranged on the top end, is buckled with a metal support ring and is fastened through fastening screws. A narrow gap is further formed in the metal shielding cover. The direction of long edges of the narrow gap is perpendicular to the plane of the magnetic induction coil. The metal shielding cover inhibits strong electromagnetic and strong radiation interference and also enables a magnetic field to be introduced to the magnetic induction coil through the narrow gap.

Description

Technical field [0001] The present invention proposes a B-dot current probe and a current measurement system, which have important applications in fast pulse current measurement such as ultra-high power pulse transmission, vacuum magnetic insulated transmission line, induced voltage superimposed device and Z-pinch experiment. Background technique [0002] Ultra-high-power pulse technology can obtain extreme physical experiment conditions such as extreme high temperature, high pressure, high energy density and strong radiation in the laboratory, and has important applications in cutting-edge scientific research such as Z-pinch inertial confinement fusion, radiation effects, and astrophysics. Beam transmission measurement is an indispensable part of large-scale pulse power device operation monitoring, parameter measurement and physical experiment. [0003] The pulse current (beam current) measurement in the ultra-high power pulse device has the following characteristics: (1) The meas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/00
CPCG01R19/0061G01R19/0092
Inventor 魏浩孙凤举姜晓峰丛培天邱爱慈
Owner NORTHWEST INST OF NUCLEAR TECH
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