CN104991175A - Single-laser positioning corona UV detector - Google Patents
Single-laser positioning corona UV detector Download PDFInfo
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- CN104991175A CN104991175A CN201510455484.3A CN201510455484A CN104991175A CN 104991175 A CN104991175 A CN 104991175A CN 201510455484 A CN201510455484 A CN 201510455484A CN 104991175 A CN104991175 A CN 104991175A
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- ultraviolet detector
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Abstract
The invention discloses a single-laser positioning corona UV detector. The detector comprises a UV lens, a UV detector, a signal processing circuit, a data display and a laser observation mirror. The UV lens and the UV detector share the same optical axis. The UV detector is electrically connected with the signal processing circuit. The signal processing circuit is electrically connected with the data display. A laser base is sleeved on the UV lens. A visible laser is arranged on the laser base. The visible laser is electrically connected with the signal processing circuit through a laser drive circuit. Light beams emitted out by the visible laser are close and parallel to the optical axis of the UV lens. The detector has the advantages that certain insulator parts that discharge can be rapidly positioned or certain insulators that discharge can be rapidly found out. The insulator discharge position locating aim is achieved.
Description
The application be to the applying date be on February 5th, 2013, application number is 201310045864.0, denomination of invention is: the divisional application of single laser positioning corona ultraviolet detector
Technical field
The present invention relates to a kind of corona ultraviolet detector, especially relate to a kind of single laser positioning corona ultraviolet detector.
Background technology
Along with the fast development of China's electrical network scale, the partial discharges fault problem of power equipment becomes increasingly conspicuous.Partial discharges fault generally shows as corona discharge in early days, after corona discharge refers to that ate electrode electric field intensity exceedes certain value, causes ambient gas (normally air) partial ionization and a kind of self-maintained discharge phenomenon produced.Corona belongs to high pressure pulse discharge, can with the generation of plasma in discharge process, and it can make air generation chemical reaction, produces the product such as ozone and nitrogen oxide, causes isolated corrosion and the damage of electrical equipment, and then causes major accident and electrical network paralysis.
International Commission on Illumination (CIE) is defined UV radiation wave band, and namely the electromagnetic radiation of 100nm ~ 400nm is called ultraviolet.Concrete point three wave bands, i.e. UVA, UVB and UVC.Wherein UVC wavelength band is 100nm ~ 280nm, wherein 100nm ~ 200nm belongs to vacuum ultraviolet, (formation ozone) is absorbed very soon in atmosphere by oxygen, and the light of 200nm ~ 280nm wave band can be inhaled by ozonosphere strongly when passing through atmospheric advection layer in solar spectrum, this wave band is called as day blind ultraviolet band.Therefore ground lacks the ultraviolet light of 100-280nm wave band, the target on ground in the face of UVC ultraviolet band detects, even if sunny daytime also can avoid the background interference of sunshine, the accuracy of detection is high.
And the early stage shelf depreciation electric discharge of power equipment just in time can send the light of UVC wave band, therefore the power equipment early discharge ultraviolet corona detector carried out for UVC wave band in recent years rises gradually, and obtain in western countries' electric system and greatly apply, also more and more come into one's own in China.Certainly, if can carry out detecting the generation that just can prevent electric power accident in time to the early discharge of power equipment.
But at present because the blind UV. Image Devices research of China's highly sensitive day is still immature, adopt external high-performance UV. Image Devices price very expensive again, therefore China faces very large difficulty in corona ultraviolet imager practical research.But adopting unit (non-imaged) detection method to carry out the detection of corona UV radiation intensity is a kind of proper technology, technical difficulty is relatively low, the cost of development of instrument is more much lower than corona ultraviolet imager, but a lot of unit ultraviolet detection technology lacks object locating system at present.If unit Detection Techniques lack special positioning system, the consequence brought to judge that corona discharge appears in that position of insulator, and even to occur that corona discharge also cannot judge clear for which insulator.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of single laser positioning corona ultraviolet detector
The present invention solves the problems of the technologies described above adopted technical scheme: single laser positioning corona ultraviolet detector, comprise ultraviolet lens, ultraviolet detector, signal processing circuit, data display equipment and laser sight glass, described ultraviolet lens and ultraviolet detector be totally one optical axis, described ultraviolet detector is electrically connected with described signal processing circuit, described signal processing circuit is electrically connected with described data display equipment, described ultraviolet lens is set with laser instrument pedestal, described laser instrument pedestal installs a visible laser, visible laser is electrically connected with signal processing circuit by drive circuit for laser, described visible laser outgoing beam near and be parallel to the optical axis of ultraviolet lens.
Described laser instrument pedestal is provided with the small sircle hole coordinating major thread hole and the fixing visible laser installed with ultraviolet lens, small sircle hole is positioned at directly over major thread hole, direction vertical with small sircle hole in laser instrument pedestal is also drilled with a minor thread hole, compressed by visible laser by minor thread hole with screw, laser instrument pedestal is made up of aluminium or plastics.
Ultraviolet lens comprises lens barrel, convex lens and diaphragm, the internal diameter of lens barrel is 10mm-40mm, the length of lens barrel is 5-10 times of internal diameter, after described ultraviolet detector is arranged on described lens barrel, convex lens are contained in the middle rear end of lens barrel, diaphragm is contained in lens barrel rear end and between ultraviolet detector and convex lens, the inside surface of lens barrel has delustring screw thread and is black.
Ultraviolet lens is Cassegrain camera lens, ultraviolet detector is arranged on after Cassegrain camera lens, Cassegrain camera lens comprises lens barrel, parabola principal reflection mirror and hyperboloid secondary mirror, described parabola principal reflection mirror is positioned at the rear end of lens barrel, parabola principal reflection mirror and hyperboloid secondary mirror totally one optical axis, hyperboloid secondary mirror to be positioned at before parabola principal reflection mirror and within being positioned at the focus of parabola principal reflection mirror, and the inside surface of lens barrel has delustring screw thread and in black.
The unit light detector of ultraviolet detector to be response wave band be 100-280nm or add 100-280nm ultraviolet band pass filter by wide spectral single-element detector and form.
Signal processing circuit is made up of ultraviolet light intensity signal acquisition circuit, data analysis circuit and laser instrument Drive and Control Circuit, and described data display equipment is LCDs or is made up of digital display tube.
Described ultraviolet lens and laser instrument pedestal pass through threaded engagement.
Also comprise shell, described ultraviolet detector, signal processing circuit and data display equipment are arranged in described shell, described laser sight glass is fixed on the top of shell, is provided with the narrow band pass filter matched with visible laser operation wavelength in laser sight glass.
Also comprise shell, described ultraviolet detector, signal processing circuit and data display equipment are arranged in described shell, and laser sight glass is positioned at housing exterior, and laser sight glass pastes visible ray narrow band pass filter by lens surface and forms.
Visible laser operation wavelength is within the scope of 630-700nm or 500-570nm.
Compared with prior art, advantage of the present invention is that the ultraviolet lens by neglecting rink corner carries out electric discharge ultraviolet detection, field range is restricted to minimum as far as possible; Simultaneously by single laser beam irradiation to insulator forms laser facula, below laser facula, distance is the position of h is exactly roughly electric discharge place the most violent, and these utilize laser sight glass to observe and obtain.Insulator can be found so fast roughly to there occurs electric discharge in which position, or which insulator there occurs electric discharge, reaches the object positioned the discharge position of insulator.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention;
Fig. 2 is laser instrument base construction schematic diagram;
Fig. 3 is the structural drawing of the ultraviolet lens of the embodiment of the present invention one;
Fig. 4 is the structural drawing of the ultraviolet lens of the embodiment of the present invention two;
The discharge insulator position that in Fig. 5 the present invention, laser sight glass is seen and laser facula distribution plan.
Embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Embodiment one: single laser positioning corona ultraviolet detector, as shown in Figure 1, comprise ultraviolet lens 1, ultraviolet detector 3, signal processing circuit 6, data display equipment 7 and laser sight glass 8, ultraviolet lens 1 and ultraviolet detector 3 be totally one optical axis 31, ultraviolet detector 3 is electrically connected with signal processing circuit 6, signal processing circuit 6 is electrically connected with data display equipment 7, ultraviolet lens 1 is set with laser instrument pedestal 2, laser instrument pedestal 2 installs a visible laser 4, visible laser 4 is electrically connected with signal processing circuit 6 by drive circuit for laser 5, visible laser 4 outgoing beam 41 near and be parallel to the optical axis 31 of ultraviolet lens 1, light beam 41 is h with the distance of optical axis 31, allow two optical axises as far as possible close when installation site allows.
Visible laser 4 operation wavelength is within the scope of 630-700nm or 500-570nm.
As shown in Figure 2, laser instrument pedestal 2 is provided with the small sircle hole 22 coordinating major thread the hole 21 and fixing visible laser 4 installed with ultraviolet lens 1, small sircle hole 22 is positioned at directly over major thread hole 21, direction vertical with small sircle hole 22 in laser instrument pedestal 2 is also drilled with a minor thread hole 23, compressed by visible laser 4 by minor thread hole 23 with screw, laser instrument pedestal 2 is made up of aluminium or plastics.
As shown in Figure 3, ultraviolet lens 1 comprises lens barrel 1A, convex lens 10 and diaphragm 11, the internal diameter of lens barrel 1A is 10mm-40mm, the length of lens barrel 1A is 5-10 times of internal diameter, after ultraviolet detector 3 is arranged on lens barrel, convex lens 10 are contained in the middle rear end of lens barrel, and diaphragm 11 is contained in lens barrel rear end and between ultraviolet detector 3 and convex lens 10, the inside surface of lens barrel 1A has delustring screw thread and is black.
Ultraviolet detector 3 is the unit light detector of 100-280nm for response wave band or adds 100-280nm ultraviolet band pass filter by wide spectral single-element detector and form.
Signal processing circuit 6 is made up of ultraviolet light intensity signal acquisition circuit, data analysis circuit and laser instrument Drive and Control Circuit, and data display equipment 7 is for LCDs or be made up of digital display tube.
Ultraviolet lens 1 and laser instrument pedestal 2 pass through threaded engagement.
Also comprise shell, ultraviolet detector 3, signal processing circuit 6 and data display equipment 7 arrange in the enclosure, and laser sight glass 8 is fixed on the top of shell, are provided with the narrow band pass filter 81 matched with visible laser operation wavelength in laser sight glass 8.
Also comprising ultraviolet detector 3, signal processing circuit 6 and data display equipment 7 is arranged in described shell, and laser sight glass 8 is positioned at housing exterior, and laser sight glass 8 pastes visible ray narrow band pass filter 81 by lens surface and forms.
Embodiment two: other parts are identical with embodiment, difference is as shown in Figure 4, ultraviolet lens 1 is Cassegrain camera lens, ultraviolet detector 3 is arranged on after Cassegrain camera lens 1, Cassegrain camera lens comprises lens barrel 1B, parabola principal reflection mirror and hyperboloid secondary mirror, parabola principal reflection mirror 15 is positioned at the rear end of lens barrel, parabola principal reflection mirror 15 and hyperboloid secondary mirror 16 totally one optical axis, hyperboloid secondary mirror 16 to be positioned at before parabola principal reflection mirror 15 and within being positioned at the focus of parabola principal reflection mirror 15.The inside surface of lens barrel 1B has delustring screw thread and is black.Laser sight glass 8 also can not on shell, and laser sight glass 8 pastes visible ray narrow band pass filter by lens surface and forms.
Detection UV signal time, discharge insulator 9 discharge send ultraviolet signal arrival ultraviolet lens 1, the structure of ultraviolet lens 1 makes to only have the light at close optical axis 31 center just can be irradiated on ultraviolet detector 3.Because ultraviolet detector 3 is made up of the photo-detector of response wave band within the scope of 100-280nm, also can add 100-280nm ultraviolet band pass filter by wide spectral detector to form, so ultraviolet detector 3 only responds the corona UV signal within the scope of 100-280nm, even if also can avoid the interference of sunshine like this on sunny daytime, signal false drop rate is low.
When ultraviolet detector 3 senses the signal of corona UV radiation, voltage or current signal can be induced, at this moment by signal processing circuit 6, the voltage induced or current signal are amplified, and carry out data acquisition, finally ultraviolet light intensity signal is shown by data display equipment 7.Signal processing circuit 6 is except carrying out except signals collecting to ultraviolet light intensity, visible laser driving circuit can also be controlled, when needs visible laser works, provide " connection " switching signal by signal processing circuit 6, thus connect drive circuit for laser.When not needing visible laser to work, provide a "off" switching signal by circuit 6, thus disconnect drive circuit for laser 5, laser instrument can quit work because lacking Power supply.Signal processing circuit 6 can adopt traditional technical scheme.
Laser instrument pedestal 2 is made up of the light material such as aluminium, plastics.On pedestal 2 by internal thread to coordinate with the lens barrel external thread of ultraviolet lens 1 install fixing.
In laser sight glass 8, the effect of visible ray arrowband 81 optical filter is the contrast improving laser facula and background object (as insulator etc.), namely allows the light transmission of visible laser wavelength, and the light of other wavelength is suppressed.Human eye can be enable so clearly to see laser facula, human eye can be made again to see comparatively clear to background object, finally user can distinguish laser facula and drop on where going up of what target object, meet the technical requirement of detector laser positioning.
During concrete use, first open visible laser 1, the ultraviolet light intensity of display on observation display 7 simultaneously, carry out target area search, when finding that ultraviolet light intensity is stronger, can see that visible laser beam beats the hot spot on high-tension insulator by laser sight glass 8, like this according to the distance h of visible light lasers optical axis 41 with ultraviolet light optical axis 31, roughly judge it is that position of which insulator or insulator there occurs electric discharge, also just achieve the object that the insulator of electric discharge is positioned.The scene of being observed by laser sight glass as shown in Figure 5, insulator 9 has single beam laser hot spot, and below laser facula, the place of about h is electric discharge position.After determining discharge position, drive circuit for laser 5 can be disconnected by signal processing circuit 6, allow visible laser quit work, so just can save instrument power consumption, extend service time of battery.
If ultraviolet lens 1 selects the structure of Fig. 3, then can find out that large incident angle light 12 can have been eliminated by delustring screw thread by multiple reflections in lens barrel; The light 13 of slightly large incident angle can be blocked by diaphragm 11 after lens 10.Only have the light 14 of very little incident angle just can be irradiated on ultraviolet detector 3.If ultraviolet lens 1 selects the structure of Fig. 4, then can find out that the light 17 and 18 of large incident angle all can be eliminated by delustring screw thread through multiple reflections in lens barrel inside; Only have the light 19 of little incident angle just can be irradiated on ultraviolet detector 3.Therefore no matter which kind of ultraviolet lens structure, all can make the field angle of detection instrument as far as possible little, to reduce the field range of detection instrument, the target area detected be reduced as far as possible, improve the accuracy detecting position; Can make again simultaneously ultraviolet signal in visual field can cover to ultraviolet detector surface, raising instrumental sensitivity.
Claims (7)
1. single laser positioning corona ultraviolet detector, it is characterized in that comprising ultraviolet lens, ultraviolet detector, signal processing circuit, data display equipment and laser sight glass, described ultraviolet lens and ultraviolet detector be totally one optical axis, described ultraviolet detector is electrically connected with described signal processing circuit, described signal processing circuit is electrically connected with described data display equipment, described ultraviolet lens is set with laser instrument pedestal, described laser instrument pedestal installs a visible laser, visible laser is electrically connected with signal processing circuit by drive circuit for laser, described visible laser outgoing beam near and be parallel to the optical axis of ultraviolet lens,
Described laser instrument pedestal is provided with the small sircle hole coordinating major thread hole and the fixing visible laser installed with ultraviolet lens, small sircle hole is positioned at directly over major thread hole, direction vertical with small sircle hole in laser instrument pedestal is also drilled with a minor thread hole, compressed by visible laser by minor thread hole with screw, laser instrument pedestal is made up of aluminium or plastics;
Also comprise shell, described ultraviolet detector, signal processing circuit and data display equipment are arranged in described shell, and laser sight glass is positioned at housing exterior, and laser sight glass pastes visible ray narrow band pass filter by lens surface and forms.
2. single laser positioning corona ultraviolet detector according to claim 1, it is characterized in that ultraviolet lens comprises lens barrel, convex lens and diaphragm, the internal diameter of lens barrel is 10mm-40mm, the length of lens barrel is 5-10 times of internal diameter, after described ultraviolet detector is arranged on described lens barrel, convex lens are contained in the middle rear end of lens barrel, and diaphragm is contained in lens barrel rear end and between ultraviolet detector and convex lens, the inside surface of lens barrel has delustring screw thread and is black.
3. single laser positioning corona ultraviolet detector according to claim 1, it is characterized in that ultraviolet lens is Cassegrain camera lens, ultraviolet detector is arranged on after Cassegrain camera lens, Cassegrain camera lens comprises lens barrel, parabola principal reflection mirror and hyperboloid secondary mirror, described parabola principal reflection mirror is positioned at the rear end of lens barrel, parabola principal reflection mirror and hyperboloid secondary mirror totally one optical axis, hyperboloid secondary mirror to be positioned at before parabola principal reflection mirror and within being positioned at the focus of parabola principal reflection mirror, and the inside surface of lens barrel has delustring screw thread and in black.
4. single laser positioning corona ultraviolet detector according to claim 1, is characterized in that ultraviolet detector to be response wave band is the unit light detector of 100-280nm or add 100-280nm ultraviolet band pass filter by wide spectral single-element detector and form.
5. single laser positioning corona ultraviolet detector according to claim 1, it is characterized in that signal processing circuit is made up of ultraviolet light intensity signal acquisition circuit, data analysis circuit and laser instrument Drive and Control Circuit, described data display equipment is LCDs or is made up of digital display tube.
6. single laser positioning corona ultraviolet detector according to claim 1, is characterized in that described ultraviolet lens and laser instrument pedestal pass through threaded engagement.
7. single laser positioning corona ultraviolet detector according to claim 1, is characterized in that visible laser operation wavelength is within the scope of 630-700nm or 500-570nm.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310045864.0A CN103135044B (en) | 2013-02-05 | 2013-02-05 | single laser positioning corona ultraviolet detector |
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| CN201310045864.0A Division CN103135044B (en) | 2013-02-05 | 2013-02-05 | single laser positioning corona ultraviolet detector |
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| CN104991175A true CN104991175A (en) | 2015-10-21 |
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| CN201310045864.0A Active CN103135044B (en) | 2013-02-05 | 2013-02-05 | single laser positioning corona ultraviolet detector |
| CN201510455484.3A Pending CN104991175A (en) | 2013-02-05 | 2013-02-05 | Single-laser positioning corona UV detector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106781179A (en) * | 2017-01-10 | 2017-05-31 | 国网浙江嵊州市供电公司 | A kind of mountain fire monitoring system |
| CN110954790A (en) * | 2019-11-25 | 2020-04-03 | 贵州电网有限责任公司 | Insulator creeping discharge handheld detection device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760479B (en) * | 2014-01-10 | 2016-11-02 | 三峡大学 | Portable corona position finder |
| CN104280671B (en) * | 2014-10-08 | 2017-02-15 | 国家电网公司 | Laser resonance Raman method for extra-high-voltage corona discharge early diagnosis |
| CN107702803A (en) * | 2017-10-16 | 2018-02-16 | 国网浙江嵊州市供电有限公司 | A kind of infrared point temperature instrument |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01152377A (en) * | 1987-12-10 | 1989-06-14 | Central Res Inst Of Electric Power Ind | Partial discharge detection method |
| CN1858606A (en) * | 2006-05-31 | 2006-11-08 | 清华大学深圳研究生院 | Corona detecting method and system for insulator remote surface on optical amplifier |
| CN101706548A (en) * | 2009-11-06 | 2010-05-12 | 宁波大学 | Optical detection device for corona discharge |
| CN101718836A (en) * | 2009-12-07 | 2010-06-02 | 河南省电力公司商丘供电公司 | Electrical insulator fault detector and detecting method thereof |
| CN202049219U (en) * | 2011-04-18 | 2011-11-23 | 成都凯迈科技有限公司 | Detecting device based on ultraviolet photon corona detection method |
| CN202486267U (en) * | 2011-12-14 | 2012-10-10 | 武汉市兑尔科技有限公司 | Corona detection apparatus based on UV narrow band spectrum |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA932019B (en) * | 1991-12-23 | 1993-10-11 | Grinaker Electronics Limited | Optical detection of electrical discharges |
| US6323491B1 (en) * | 1998-11-18 | 2001-11-27 | Forsyth Electro-Optics | Corona discharge imaging system for outdoor daylight use |
| CN101666852A (en) * | 2009-10-16 | 2010-03-10 | 曲娜 | Arcing and corona detection system for overhead power line with power supplied by induction current in high-voltage alternating electric field |
| CN201689138U (en) * | 2010-03-25 | 2010-12-29 | 浙江红相科技有限公司 | Solar-blinded ultraviolet imaging instrument based on narrow-band spectrum |
| CN102230952B (en) * | 2011-04-18 | 2014-11-19 | 成都凯迈科技有限公司 | Corona detection method based on ultraviolet photons |
-
2013
- 2013-02-05 CN CN201310045864.0A patent/CN103135044B/en active Active
- 2013-02-05 CN CN201510455484.3A patent/CN104991175A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01152377A (en) * | 1987-12-10 | 1989-06-14 | Central Res Inst Of Electric Power Ind | Partial discharge detection method |
| CN1858606A (en) * | 2006-05-31 | 2006-11-08 | 清华大学深圳研究生院 | Corona detecting method and system for insulator remote surface on optical amplifier |
| CN101706548A (en) * | 2009-11-06 | 2010-05-12 | 宁波大学 | Optical detection device for corona discharge |
| CN101718836A (en) * | 2009-12-07 | 2010-06-02 | 河南省电力公司商丘供电公司 | Electrical insulator fault detector and detecting method thereof |
| CN202049219U (en) * | 2011-04-18 | 2011-11-23 | 成都凯迈科技有限公司 | Detecting device based on ultraviolet photon corona detection method |
| CN202486267U (en) * | 2011-12-14 | 2012-10-10 | 武汉市兑尔科技有限公司 | Corona detection apparatus based on UV narrow band spectrum |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106781179A (en) * | 2017-01-10 | 2017-05-31 | 国网浙江嵊州市供电公司 | A kind of mountain fire monitoring system |
| CN110954790A (en) * | 2019-11-25 | 2020-04-03 | 贵州电网有限责任公司 | Insulator creeping discharge handheld detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103135044A (en) | 2013-06-05 |
| CN103135044B (en) | 2015-08-26 |
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