CN109459592A - A kind of bracket improving power frequency electric field measuring instrument accuracy - Google Patents
A kind of bracket improving power frequency electric field measuring instrument accuracy Download PDFInfo
- Publication number
- CN109459592A CN109459592A CN201811119930.3A CN201811119930A CN109459592A CN 109459592 A CN109459592 A CN 109459592A CN 201811119930 A CN201811119930 A CN 201811119930A CN 109459592 A CN109459592 A CN 109459592A
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- bracket
- electric field
- frequency electric
- measuring instrument
- power frequency
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
本发明公开了一种提高工频电场测量仪准确性的支架，包括夹具、中心杆、木质支架；木质支架包括第一支架和第二支架，第一支架内部为中空结构，第二支架安装在第一支架内部，第一支架末端安装有紧固旋钮，第一支架通过铰链连接在固定块上，圆盘上设置有水平调节仪，圆盘上通过螺栓固定有中心杆，夹具在水平方向设置有水平杆，水平杆的末端设置有固定装置，固定装置上固定有检测探头；一种提高工频电场测量仪准确性的支架，改变传统工频电场强度测量仪的监测探头支撑方式，由传统的三角型支架垂直地面支撑监测探头方式改为与地面呈水平支撑方式，这样可以避免环境湿度对监测探头测量带来的误差，有效提高了测量结果的准确性。
The invention discloses a bracket for improving the accuracy of a power frequency electric field measuring instrument. Inside the first bracket, a tightening knob is installed at the end of the first bracket, the first bracket is connected to the fixing block by a hinge, a leveling device is arranged on the disc, a center rod is fixed on the disc by bolts, and the clamp is arranged in the horizontal direction There is a horizontal rod, the end of the horizontal rod is provided with a fixing device, and a detection probe is fixed on the fixing device; a bracket for improving the accuracy of the power frequency electric field measuring instrument, changing the support method of the monitoring probe of the traditional power frequency electric field strength measuring instrument. The vertical ground support of the monitoring probe is changed to a horizontal support method with the ground, which can avoid the error caused by the environmental humidity to the monitoring probe measurement, and effectively improve the accuracy of the measurement results.
Description
Technical field
The present invention relates to AC power transmission and transformation project power-frequency electric field strength monitoring technical fields more particularly to a kind of raising to exchange
The bracket of the power frequency electric field measuring instrument accuracy of project of transmitting and converting electricity.
Background technique
Currently, transmission line of electricity in AC power transmission and transformation project, substation power-frequency electric field strength measurement in, used power frequency
Electric field measuring apparatus is mainly 8053A, 8053B of PMM company, Italy, the gloomy fragrance science and technology of German Narda company EFA300 and Beijing
SEM-600 etc..But for these measuring instruments when detecting the power-frequency electric field strength of transmission line of electricity, substation, measurement data is easily with air
The variation of relative humidity generates fluctuation, and especially accuracy is influenced after relative air humidity is greater than 60% by relative air humidity
Greatly, influence of the ambient humidity to these power-frequency electric field strength measuring instrument accuracy how is avoided, always all without effective solution
Scheme.
Summary of the invention
The purpose of the present invention is to provide a kind of brackets for improving power frequency electric field measuring instrument accuracy, and solve is made at present
The problem of power-frequency electric field strength measuring instrument measurement data is influenced vulnerable to relative air humidity.
To achieve the above object, the invention provides the following technical scheme: a kind of improve power frequency electric field measuring instrument accuracy
Bracket, including fixture, center-pole, wooden pillar；The wooden pillar includes first support and second support, the first support
Inside is hollow structure, and the second support is socketed in inside first support, and the first support end is equipped with tightening knob,
The first support top is connected on fixed block by movable axis, is provided with disk above the fixed block, under the disk
Square uniform welding has fixed block, and Level tune instrument is provided on the disk, and the middle of the disc position has been bolted
Center-pole, the center-pole top are equipped with fixture, and the fixture is fixed horizon bar and center-pole by bolt, the level
There is fixed device in the end of bar by bolt, is fixed with detection probe on the fixed device.
Preferably, limited block is welded on the fixed block.
Preferably, the second support end is provided with movable axis, is connected with rubber base plate on movable axis.
Preferably, the fixed device middle position offers card slot, is provided with knob on the left of card slot, the knob passes through
Welding is connected with the screw rod on right side, and the screw rod other end is provided with rubber cap, is provided with fixing seat on the right side of the card slot, institute
It states fixing seat and is internally provided with spring, the spring one end and fixing seat to fixation, the spring other end is solid by being mounted on
The top of stator, the card slot lower section are provided with rotary shaft, are provided with block teeth last month below rotary shaft, block teeth last month pass through
Bolt is fixed with next month block teeth, and block teeth last month are internally provided with spring a, are provided with steel ball, the steel above the spring a
Ball and rotary shaft are in close contact.
Preferably, block teeth last month and next month block teeth are bolted on the outside of horizon bar.
Preferably, there are three the wooden pillar is set.
Preferably, the Level tune instrument is round pie, and Level tune instrument face is provided with dial.
Compared with prior art, beneficial effects of the present invention are as follows: a kind of branch improving power frequency electric field measuring instrument accuracy
Frame changes the monitoring probe supporting way of traditional power-frequency electric field strength measuring instrument, by traditional triangular form support vertical ground branch
Support monitoring probe mode is changed to bring monitoring probe measurement to avoid ambient humidity in this way with ground in horizontally-supported mode
Error, effectively increase the accuracy of measurement result, the route and substation's surrounding enviroment suitable for AC power transmission and transformation project
Power-frequency electric field strength measure work.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram for the bracket for improving power frequency electric field measuring instrument accuracy of the present invention；
Fig. 2 is two kinds of bracket measurements in a kind of standard electric field for the bracket for improving power frequency electric field measuring instrument accuracy of the present invention
Result figure；
Fig. 3 is a kind of position view of the rubber base plate for the bracket for improving power frequency electric field measuring instrument accuracy of the present invention；
Fig. 4 is a kind of overall structure signal of the fixation device for the bracket for improving power frequency electric field measuring instrument accuracy of the present invention
Figure.
Explanation: 1 fixture, 2 center-poles, 3 disks, 4 wooden pillars, 41 first supports, 42 second supports, 43 is marked in figure
Rubber base plate, 44 tightening knobs, 5 Level tune instrument, 6 horizon bars, 61 card slots, 62 screw rods, 63 knobs.64 rubber caps, 65 are fixed
Piece, 66 springs, 67 fixing seats, 68 last month block teeth, 69 next month block teeth, 601 rotary shafts, 602 spring a, 603 steel balls, 7 detection visit
Head, 8 fixed blocks, 81 limited blocks.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments, is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
Please refer to Fig. 1-4, a kind of bracket improving power frequency electric field measuring instrument accuracy, including it is fixture 1, center-pole 2, wooden
Bracket 4；There are three wooden pillar 4 is set, keep bracket whole more stable, wooden pillar 4 includes first support 41 and second support
42, it is hollow structure inside first support 41, second support 42 is socketed in inside first support 41,41 end of first support peace
Equipped with tightening knob 44, the length of second support 42 can be adjusted for tightening knob 44, and wooden pillar 4 is retractable structure,
42 end of second support is provided with movable axis, is connected with rubber base plate 43 on movable axis, increases the frictional force with ground, and first
Bracket 41 is connected by a hinge on fixed block 8, and limited block 81 is welded on fixed block 8, and wooden pillar 4 is limited, fixed
Disk 3 is welded with above block 8,3 middle position of disk is provided with Level tune instrument 5, and Level tune instrument 5 is round pie, and horizontal
5 surface of adjusting apparatus is provided with dial, solid by bolt on disk 3 convenient for the position of the bubble among observation Level tune instrument 5
Surely there is center-pole 2, fixture 1 is installed above center-pole 2, fixture 1 is fixed horizon bar 6 and center-pole 2 by bolt, horizon bar
6 end has been bolted fixed device, and fixed device middle position offers card slot 61, is provided on the left of card slot 61
Knob 63, knob 63 are connected by welding with the screw rod 62 on right side, and 62 other end of screw rod is provided with rubber cap 64, card slot 61
Right side is provided with fixing seat 67, and fixing seat 67 is internally provided with spring 66,66 one end of spring and fixing seat 67 to fixation, spring 66
The other end is provided with rotary shaft 601 below card slot 61, is provided with below rotary shaft 601 by being mounted on the top of fixinig plate 65
Last month block teeth 68, last month, block teeth 68 were bolted next month block teeth 69, and last month, block teeth 68 were internally provided with spring a602, bullet
Steel ball 603 is provided with above spring a602, steel ball 603 and rotary shaft 601 are in close contact, it is fixed with detection probe 7 on fixed device,
Last month block teeth 68 and next month block teeth 69 be bolted on the outside of horizon bar 6.
Specific implementation step is as follows:
(1) pattern field is established, prepares one and is calibrating the AC power frequency electric field measuring apparatus in the qualified phase；
(2) practical AC input transformation power frequency electromagnetic environment is simulated, established standards field is transported under a certain power-frequency electric field strength value
Row；
(3) it selects bracket used in the present embodiment and conventional stent to support measuring instrument monitoring probe, presses " AC input transformation
Engineering electromagnetic environment monitor method " (HJ681-2013) standard requirements, it is arranged under varying environment humidity in pattern field and carries out work
The test of frequency electric field intensity value.
(4) according to same power frequency electric field measuring instrument, in same standard electric field value and varying environment damp condition, to two kinds
Bracket measurement result compares, and analyzes bracket used in this implementation it is possible to prevente effectively from ambient humidity measures power-frequency electric field strength
The influence of instrument accuracy.
(5) conventional wooden bracket and this example bracket measurement result comparison result such as Fig. 2 are used, in humidity value less than 60%
When, conventional stent measured value and standard value deviation are little, but when humidity value is greater than 60%, and deviation is just steep to be increased；And use this
When example bracket measurement, when the humidity value of requirements of the national standard is less than 80%, measurement data and standard value deviation are small, and not with ring
Border humidity changes and changes.
Working principle: bracket is placed into needs by a kind of bracket for improving power frequency electric field measuring instrument accuracy, staff
Wooden pillar 4 is opened in the position of measurement, adjusts the position of first support 41 and second support 42, makes in Level tune instrument 5
Bubble it is centrally located, and by adjusting the position of tightening knob 44 fixed first support 41 and second support 42, rubber
Pedestal 43 and ground face contact, it is by fixture 1 that horizon bar 6 and center-pole 2 is fixed, then by block teeth last month 68 and next month block teeth 69
Be bolted on horizon bar 6, will test probe 7 be placed on card slot 61 turn knob 63 drive screw rod 62 rotate, push away
Dynamic rubber cap 64 moves right, and until withstanding detection probe 7, fixinig plate 65 is pulled out, is stuck in detection probe 7, may be used also
The position of fixed device is adjusted by the rotary shaft 601 below fixed device in order to observe the data shown in detection probe.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, for this field skill
For art personnel, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from spirit of the invention or
In the case where essential characteristic, the present invention can be realized in other specific forms；Therefore, in all respects, should all incite somebody to action
Embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention
Interior, any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of bracket for improving power frequency electric field measuring instrument accuracy, including fixture (1), center-pole (2), wooden pillar (4)；Its
Be characterized in that: the wooden pillar (4) includes first support (41) and second support (42), is inside the first support (41)
Hollow structure, the second support (42) are socketed in first support (41) inside, and first support (41) end is equipped with tightly
Gu knob (44), first support (41) top is connected on fixed block (8) by movable axis, above the fixed block (8)
It is provided with disk (3), there is fixed block (8) uniform welding below the disk (3), be provided with Level tune on the disk (3)
Instrument (5), disk (3) middle position have been bolted center-pole (2), are equipped with fixture above the center-pole (2)
(1), the fixture (1) is fixed by horizon bar (6) and center-pole (2) by bolt, and the end of the horizon bar (6) passes through bolt
There is fixed device, detection probe (7) are fixed on the fixed device.
2. a kind of bracket for improving power frequency electric field measuring instrument accuracy according to claim 1, it is characterised in that: described solid
Determine to be welded with limited block (81) on block (8).
3. a kind of bracket for improving power frequency electric field measuring instrument accuracy according to claim 1, it is characterised in that: described the
Two brackets (42) end is provided with movable axis, and rubber base plate (43) are connected on movable axis.
4. a kind of bracket for improving power frequency electric field measuring instrument accuracy according to claim 1, it is characterised in that: described solid
Determine device middle position to offer card slot (61), be provided with knob (63) on the left of card slot (61), the knob (63) passes through welding
It is connected with the screw rod (62) on right side, screw rod (62) other end is provided with rubber cap (64), is set on the right side of the card slot (61)
It is equipped with fixing seat (67), the fixing seat (67) is internally provided with spring (66), described spring (66) one end and fixing seat (67)
To fixation, spring (66) other end is provided with rotation below the card slot (61) by being mounted on the tops of fixinig plate (65)
Shaft (601), rotary shaft (601) lower section are provided with block teeth last month (68), and block teeth last month (68) have been bolted down
Moon block teeth (69), block teeth last month (68) are internally provided with spring a (602), are provided with steel ball above the spring a (602)
(603), the steel ball (603) and rotary shaft (601) are in close contact.
5. a kind of bracket for improving power frequency electric field measuring instrument accuracy according to claim 4, it is characterised in that: on described
Moon block teeth (68) and next month block teeth (69) are bolted on the outside of horizon bar (6).
6. a kind of bracket for improving power frequency electric field measuring instrument accuracy according to claim 4, it is characterised in that: the wood
There are three matter bracket (4) is set.
7. a kind of bracket for improving power frequency electric field measuring instrument accuracy according to claim 4, it is characterised in that: the water
Flat adjusting apparatus (5) is round pie, and Level tune instrument (5) surface is provided with dial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811119930.3A CN109459592A (en) | 2018-09-25 | 2018-09-25 | A kind of bracket improving power frequency electric field measuring instrument accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811119930.3A CN109459592A (en) | 2018-09-25 | 2018-09-25 | A kind of bracket improving power frequency electric field measuring instrument accuracy |
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| Publication Number | Publication Date |
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| CN109459592A true CN109459592A (en) | 2019-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811119930.3A Pending CN109459592A (en) | 2018-09-25 | 2018-09-25 | A kind of bracket improving power frequency electric field measuring instrument accuracy |
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| CN (1) | CN109459592A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231520A (en) * | 2019-07-17 | 2019-09-13 | 南京信息工程大学 | A kind of mobile atmospheric electric field detector of thunder and lightning detection |
| CN110596447A (en) * | 2019-07-09 | 2019-12-20 | 国网江苏省电力有限公司徐州供电分公司 | Electric field measurement-based charged equipment surrounding safety detection device and detection method thereof |
| CN111257804A (en) * | 2020-04-01 | 2020-06-09 | 湖州中芯半导体科技有限公司 | High time resolution magnetic field measuring equipment based on CVD diamond |
| CN113804983A (en) * | 2021-09-23 | 2021-12-17 | 北京森馥科技股份有限公司 | A power frequency electric field measuring device, system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596447A (en) * | 2019-07-09 | 2019-12-20 | 国网江苏省电力有限公司徐州供电分公司 | Electric field measurement-based charged equipment surrounding safety detection device and detection method thereof |
| CN110231520A (en) * | 2019-07-17 | 2019-09-13 | 南京信息工程大学 | A kind of mobile atmospheric electric field detector of thunder and lightning detection |
| CN111257804A (en) * | 2020-04-01 | 2020-06-09 | 湖州中芯半导体科技有限公司 | High time resolution magnetic field measuring equipment based on CVD diamond |
| CN113804983A (en) * | 2021-09-23 | 2021-12-17 | 北京森馥科技股份有限公司 | A power frequency electric field measuring device, system and method |
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Application publication date: 20190312 |
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