Radiation field uniformity calibration positioner

A positioning device and uniformity technology, applied in the field of radiation field uniformity calibration positioning device, can solve the problems of increased measurement uncertainty, uneven local field strength, thick vertical connecting rod, etc., to reduce the impact and simplify the calibration The effect of testing the operation process and improving efficiency

Inactive Publication Date: 2012-07-25
SHANGHAI INST OF MEASUREMENT & TESTING TECH
View PDF5 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) Common radiation field uniformity calibration and positioning devices, the electric field probe can only be adjusted up and down in the vertical direction, which is a one-dimensional positioning device. When changing the horizontal position of the electric field probe, the device needs to be moved as a whole and re-measured Positioning makes the positioning operation cumbersome, and it cannot ensure that the field strength probes at multiple horizontal positions are on the same plane, which will lead to poor repeatability of measurement results;
[0005] (2) Common radiation field uniformity calibration and positioning devices, vertical connecting rods generally use materials with low dielectric constants, such as PVC (Poly Vinyl Chloride, polyvinyl chloride), bakelite, wood and othe

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Radiation field uniformity calibration positioner
  • Radiation field uniformity calibration positioner
  • Radiation field uniformity calibration positioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Radiation field uniformity verification positioning device, such as figure 2 As shown, it includes a vertical connecting rod 1, a bottom plate 2, a horizontal connecting rod 3, and a horizontal sleeve 4;

[0042] The bottom end of the vertical connecting rod 1 is fixed on the bottom plate 2;

[0043] The horizontal sleeve 4 is sleeved on the outside of the vertical connecting rod 1 and can slide axially along the vertical connecting rod 1;

[0044] The horizontal sleeve 4 and / or the vertical connecting rod 1 are provided with an axial positioning mechanism (such as a positioning hole, a positioning pin, etc.), for the horizontal sleeve 4 to be positioned in the axial direction of the vertical connecting rod 1 fixed;

[0045] The horizontal connecting rod 3 has one end fixed on the horizontal sleeve 4 and perpendicular to the vertical connecting rod 1, and the other end is used to fix the electric field probe 5;

[0046] The cross-sectional area of ​​the horizontal c...

Embodiment 2

[0049] Radiation field uniformity calibration positioning device such as image 3 As shown, it includes a vertical connecting rod 1, a horizontal connecting rod 3, a horizontal sleeve 4, a vertical sleeve 7, a base sleeve 6, and a bottom plate 2;

[0050] Described base sleeve 6 has multiple ( figure 2 4 in the center), a plurality of base sleeves 6 are fixed on the base plate 2 in a straight line, the axis of each base sleeve 6 is perpendicular to the base plate 2, and the distance between the axes of two adjacent base sleeves 6 is equal;

[0051] The bottom end of the vertical connecting rod 1 is detachably accommodated and fixed in one of the base sleeves 6;

[0052] Described vertical connecting rod 1 can be multi-section ( image 3 There are two sections in the middle), and the multi-section vertical connecting rod 1 is connected and fixed through the vertical sleeve 7 to form the entire vertical connecting rod 1;

[0053]The distance from the electric field probe to ...

Embodiment 3

[0060] Radiation field uniformity calibration positioning device such as Figure 5 As shown, it includes two vertical connecting rods 1, two base sleeves 6, two horizontal sleeves 4, a bottom plate 2, a horizontal connecting rod 3, and an electric field probe 5;

[0061] The two base sleeves 4 are respectively fixed on the base plate 2, and the axis of the base sleeve 2 is perpendicular to the base plate 2;

[0062] The bottom ends of the two vertical connecting rods 1 are accommodated and fixed in the two base sleeves 4 respectively;

[0063] Described vertical connecting rod 1 can be multi-section ( Figure 5 The middle is two sections), and the multi-section vertical connecting rod is connected and fixed through the vertical sleeve 6 to form the entire vertical connecting rod 1;

[0064] The two horizontal sleeves 4 are respectively sleeved on the outside of the two vertical connecting rods 1, and can slide axially along the set of vertical connecting rods 1 respectively;...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a radiation field uniformity calibration positioner, which comprises a vertical connected rod, a bottom plate, a horizontal connected rod and a horizontal sleeve; the bottom end of the vertical connected rod is fixed on the bottom plate; the horizontal sleeve is sleeved on the vertical connected rod, and can axially slide along the vertical connected rod; an axial positioning mechanism is arranged on the horizontal sleeve and/or the vertical connected rod, and is used for axially fixing the horizontal sleeve on the vertical connected rod; one end of the horizontal connected rod is fixed on the horizontal sleeve and is perpendicular to the vertical connected rod, and the other end of the horizontal connected rod is used for fixing an electric field probe; and the cross-sectional area of the horizontal connected rod is smaller than the cross-sectional area of the vertical connected rod. The radiation field uniformity calibration positioner can increase the accuracy of a radiation field uniformity test result and the efficiency and accuracy of radiation field uniformity calibration positioning operation.

Description

technical field [0001] The invention relates to electromagnetic compatibility test technology, in particular to a radiation field uniformity verification and positioning device, which is used for measuring characteristic parameters of an anechoic chamber used for electromagnetic compatibility tests. Background technique [0002] The International Electrotechnical Commission Electromagnetic Compatibility Standard IEC61000-4-3 stipulates the requirements for 16-point field uniformity verification: under the condition of incident electromagnetic waves of a certain power, in figure 1 At 12 of the 16 uniformly distributed locations in the shown space plane, the difference in field strength measured by an electric field probe between any two locations should be less than 6 decibels. [0003] The common radiation field uniformity verification and positioning device is a single rod, including a vertical connecting rod and an electric field probe. The electric field probe is set on t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01R35/00
Inventor 马欣邹子英陆敏龚增王晖张亮田禾箐
Owner SHANGHAI INST OF MEASUREMENT & TESTING TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap