CN207817025U - A kind of sensor for GIS Insulation monitorings - Google Patents
A kind of sensor for GIS Insulation monitorings Download PDFInfo
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- CN207817025U CN207817025U CN201720914184.1U CN201720914184U CN207817025U CN 207817025 U CN207817025 U CN 207817025U CN 201720914184 U CN201720914184 U CN 201720914184U CN 207817025 U CN207817025 U CN 207817025U
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- metal patch
- metal
- medium substrate
- connector
- patch
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Abstract
The utility model is related to a kind of sensors for GIS Insulation monitorings, the sensor includes the metal shielding box of a backside openings, aerial panel in metal shielding box inner space is set, the aerial panel includes medium substrate, it is separately positioned on the first metal patch and the second metal patch and the N connector that is connect respectively with the first metal patch and the second metal patch by coaxial line of medium substrate tow sides, the N connector is screwed in metal shielding box front, first metal patch and the second metal patch is the metal patch with tapered slot, compared with prior art, there is the utility model shielding to interfere, the advantages that improving impedance matching property.
Description
Technical field
The utility model is related to sensor fields, more particularly, to a kind of sensor for GIS Insulation monitorings.
Background technology
Gas-insulated switch (GIS) is internal, and there are shelf depreciation can occur when insulation defect and inspire superfrequency electromagnetism
Wave can be to the shelf depreciation that is leaked out through disc insulator by installing extra-high video sensor at GIS disc insulators
Electromagnetic wave signal is detected, to judge GIS built-in electrical insulation situations, as superfrequency (UHF) method.UHF methods cover model with it
It encloses wide, high sensitivity, can identify the advantages that simultaneously orientation discharge source, become domestic and international insulation defect detection field in the late three decades
The emphasis and hot spot of research.
One critical issue of UHF methods is the extra-high video sensor of design, since extra-high video sensor is substantially to receive electricity
The antenna of magnetostatic wave signal, and an important index of antenna is its impedance matching property, when antenna receiving terminal and feeding transmission
When the impedance mismatching of line, detection result can have a greatly reduced quality because of power reflection.
Utility model content
The purpose of this utility model be exactly in order to overcome the problems of the above-mentioned prior art and provide a kind of shielding interfere,
Improve the sensor for GIS Insulation monitorings of impedance matching property.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of sensor for GIS Insulation monitorings, the sensor include a backside openings metal shielding box, setting exist
The aerial panel of metal shielding box inner space, the aerial panel include medium substrate, are separately positioned on medium substrate just
First metal patch and the second metal patch on anti-two sides and by coaxial line respectively with the first metal patch and the second metal
The N connector of patch connection, the N connector are screwed in metal shielding box front, first metal patch
Piece and the second metal patch are the metal patch with tapered slot.
First metal patch and the second metal patch shape is identical, offers change according to linear rule thereon
The line of rabbet joint.
First metal patch is attached to the reverse side of medium substrate, and second metal patch is attached to medium base
The front of plate.
The dielectric constant of the medium substrate is between 2 and 6.
The core and shielded layer of described coaxial line one end bottom with the first metal patch and the second metal patch respectively
Welding, the other end are welded with N connector.
The characteristic impedance of the coaxial line is 50 ohm, is used for signal transmission.
The characteristic impedance of the N connector is 50 ohm.
Compared with prior art, the utility model has the following advantages：
One, the metal patch of sensor uses the linear gradient line of rabbet joint, hence it is evident that improves the impedance matching property of antenna.
Two, metal shielding box has been used, external interference that can effectively in shield detection.
Description of the drawings
Fig. 1 is extra-high video sensor scheme of installation.
Fig. 2 is sensor antenna panel side view.
Fig. 3 is extra-high video sensor installation effect figure.
Description of symbols in figure：
1, the first metal patch, the 2, second metal patch, 3, medium substrate, 4, metal shielding box, 5, coaxial line, 6, N-type
Connector.
Specific implementation mode
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Embodiment：
As shown in Figs. 1-3, the first metal patch 1 with the linear gradient line of rabbet joint and the patch of the second metal with the linear gradient line of rabbet joint
Piece 2 is attached to the positive and negative both sides of medium substrate 3, and medium substrate 3 is screwed in metal shielding box 4,5 one end of coaxial line
Core and shielded layer be respectively welded at the bottom of the first metal patch 1 and the second metal patch 2, the other end and N of coaxial line 5
Type joint 6 is welded, and N connector 6 is connected through a screw thread with metal shielding box 4.
Element used in the utility model is as follows：
The first metal patch 1 with the linear gradient line of rabbet joint and the second metal patch 2 with the linear gradient line of rabbet joint are attached to Jie
The positive and negative both sides of matter substrate 3 are the signal receiving units of sensor；
Medium substrate 3：For adhering to the first metal patch 1 and the second metal patch 2, dipole antenna is constituted；
Metal shielding box 4：Support is provided for medium substrate 3, shields external interference signal；
Coaxial line 5：Dipole antenna and N connector 6 are connected, signal transmission is played；
N connector 6：Connection for sensor and subsequent detection device provides interface.
Claims (1)
1. a kind of sensor for GIS Insulation monitorings, which is characterized in that the sensor includes the metallic shield of a backside openings
Box (4), setting metal shielding box (4) inner space aerial panel, the aerial panel include medium substrate (3), point
Be not arranged medium substrate (3) tow sides the first metal patch (1) and the second metal patch (2) and pass through coaxial line
(5) N connector (6) being connect respectively with the first metal patch (1) and the second metal patch (2), the N connector (6) are logical
It crosses screw and is fixed on metal shielding box (4) front, first metal patch (1) and the second metal patch (2) is to carry
The metal patch of tapered slot, first metal patch (1) is identical with the second metal patch (2) shape, opens up thereon
There is the line of rabbet joint changed according to linear rule, first metal patch (1) is attached to the reverse side of medium substrate (3), described
Second metal patch (2) is attached to the front of medium substrate (3), the dielectric constant of the medium substrate (3) between 2 and 6,
The core and shielded layer of described coaxial line (5) one end bottom with the first metal patch (1) and the second metal patch (2) respectively
Welding, the other end are welded with N connector (6), and the characteristic impedance of the coaxial line (5) is 50 ohm, the N connector
(6) characteristic impedance is 50 ohm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720914184.1U CN207817025U (en) | 2017-07-26 | 2017-07-26 | A kind of sensor for GIS Insulation monitorings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720914184.1U CN207817025U (en) | 2017-07-26 | 2017-07-26 | A kind of sensor for GIS Insulation monitorings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207817025U true CN207817025U (en) | 2018-09-04 |
Family
ID=63336570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720914184.1U Active CN207817025U (en) | 2017-07-26 | 2017-07-26 | A kind of sensor for GIS Insulation monitorings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207817025U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109839580A (en) * | 2019-03-05 | 2019-06-04 | 哈尔滨理工大学 | A kind of cable termination partial discharge monitoring multiband uhf sensor |
-
2017
- 2017-07-26 CN CN201720914184.1U patent/CN207817025U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109839580A (en) * | 2019-03-05 | 2019-06-04 | 哈尔滨理工大学 | A kind of cable termination partial discharge monitoring multiband uhf sensor |
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