CN111308289A - Partial discharge multispectral weak light detection device and method - Google Patents
Partial discharge multispectral weak light detection device and method Download PDFInfo
- Publication number
- CN111308289A CN111308289A CN202010154959.6A CN202010154959A CN111308289A CN 111308289 A CN111308289 A CN 111308289A CN 202010154959 A CN202010154959 A CN 202010154959A CN 111308289 A CN111308289 A CN 111308289A
- Authority
- CN
- China
- Prior art keywords
- partial discharge
- signals
- multispectral
- detection array
- photoelectric detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1218—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using optical methods; using charged particle, e.g. electron, beams or X-rays
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/14—Circuits therefor, e.g. for generating test voltages, sensing circuits
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
The utility model discloses a multispectral low light detection device of partial discharge includes: the device comprises a condensing lens, a filter lens, a photoelectric detection array, a signal processing module and a diagnosis module. The present disclosure also discloses a partial discharge multispectral weak light detection method, including: synchronously detecting multispectral signals generated by partial discharge in the power equipment by using a photoelectric detection array and converting the multispectral signals into multipath current signals; a signal processing module is used for carrying out synchronous processing on the multi-path current signals output by the photoelectric detection array to obtain optical pulse signals of different wave bands; and calculating the intensity proportional relation of the optical pulse signals of different wave bands by using a diagnosis module, and determining the type and the severity of the partial discharge. The device disclosed by the disclosure has the advantages of small volume, large detection range, high detection sensitivity, stronger anti-electromagnetic interference capability, rapidness, high efficiency and suitability for partial discharge diagnosis in power equipment.
Description
Technical Field
The disclosure belongs to the field of power equipment state monitoring and fault diagnosis, and particularly relates to a partial discharge multispectral weak light detection device and method.
Background
Partial discharge detection plays an important role in power equipment diagnosis as an effective means for finding insulation defects. Usually, partial discharges are accompanied by light radiation, so that the detection of the light radiation signal laterally reflects the partial discharge. The partial discharge spectrum can reflect the microscopic information of electron temperature, excitation section, development mode and the like, and the discharge mechanism and the insulation degradation degree can be deeply analyzed by utilizing the spectral characteristics. The discharge statistical information and the spectrum information are combined, so that the discharge type can be judged, and the discharge strength can be reflected. By monitoring the partial discharge multispectral signals, the type and the severity of the insulation defect can be judged, and the insulation defect, the degradation degree and the residual life of the power equipment can be diagnosed and evaluated.
The optical method is used as a relatively intrinsic and visual representation means, and can carry out deep analysis on discharge by observing partial discharge spectrum and judge the discharge type and the discharge severity. The existing internal optical measurement method for the power equipment mainly comprises the following steps: detection with fluorescent fiber and detection with a photomultiplier tube (PMT). However, these methods do not show the superiority of spectral information for partial discharge detection. In order to fully utilize the advantages of spectral information in the aspect of partial discharge detection, the invention provides a partial discharge multispectral detection device based on a silicon photomultiplier array. The method has obvious practical significance for further application of a photometric method, improvement of the field live inspection quality of equipment, realization of judgment of the discharge severity and shortening of the defect finding period of equipment accidents.
Disclosure of Invention
In view of the deficiencies in the prior art, the present disclosure provides a partial discharge multispectral weak light detection device and method, which converge an optical signal generated by partial discharge by using a condensing lens, convert an incident optical signal into a desired wavelength band by using a filter, and receive the desired wavelength band by using a photoelectric detection array, thereby obtaining partial discharge multispectral information.
In order to achieve the above purpose, the present disclosure provides the following technical solutions:
a partial discharge multi-spectral weak light detection device, comprising: a condenser lens, a filter, a photoelectric detection array, a signal processing module and a diagnosis module, wherein,
the condensing lens and the filter are positioned on the same light path, and are used for converging and filtering weak light signals generated by partial discharge in the tested power equipment so as to obtain partial discharge multispectral signals with different wave bands, and the condensing lens and the filter are arranged at the input end of the photoelectric detection array;
the photoelectric detection array is used for synchronously detecting and receiving the partial discharge multispectral signals and converting the partial discharge multispectral signals into a plurality of paths of current signals;
the signal processing module is connected to the output end of the photoelectric detection array and used for synchronously processing the multiple paths of current signals output by the photoelectric detection array to obtain optical pulse signals of different wave bands;
the diagnosis module is connected to the output end of the signal processing module and used for receiving the optical pulse signals of different wave bands, calculating the intensity proportional relation of the optical pulse signals of different wave bands and judging the type and the severity of partial discharge in the power equipment according to the proportional relation.
Preferably, the photo-detection array comprises a plurality of independently arranged detection units, each detection unit comprising any one of a single photon level silicon photomultiplier and an avalanche diode.
Preferably, the signal processing module includes the same number of signal processing units as the number of the detection units, and each signal processing unit includes:
the current-voltage conversion circuit is used for converting the multi-path current signals output by the photoelectric detection array into first voltage signals;
the signal amplification circuit is used for receiving the first voltage signal and amplifying the first voltage signal to generate a second voltage signal;
and the analog-to-digital converter is used for receiving the second voltage signal and converting the second voltage signal into optical pulse signals of different wave bands.
Preferably, the current-voltage conversion circuit comprises a first inverting amplifier and a first feedback resistor, an inverting input end of the first inverting amplifier is connected with the silicon photomultiplier, and is connected with an output end through the first feedback resistor to form a negative feedback circuit, and a non-inverting input end of the first inverting amplifier is grounded.
Preferably, the signal amplifying circuit includes a second inverting amplifier, a second feedback resistor, a ground resistor, and a first load resistor, an inverting input terminal of the second inverting amplifier is connected to the output terminal of the current-voltage conversion circuit, and meanwhile, the inverting input terminal of the second inverting amplifier is connected to the output terminal through the second feedback resistor to form a negative feedback circuit, a non-inverting input terminal of the second inverting amplifier is grounded through the ground resistor, and the output terminal of the second inverting amplifier is connected to the first load resistor.
Preferably, the optical filter includes any one of: a planar filter which is arranged in front of or behind the condenser lens, and a filter coating film which is electroplated on the surface of the condenser lens or the photoelectric detection array.
Preferably, the planar optical filter is fixed through a multispectral framework, and the photoelectric detection array is arranged in a groove of the multispectral framework and is attached to the planar optical filter through a window arranged at the bottom of the groove.
The present disclosure also provides a partial discharge multispectral weak light detection method, including the following steps:
s100: synchronously detecting multispectral signals generated by partial discharge in the power equipment by using a photoelectric detection array and converting the multispectral signals into multipath current signals;
s200: a signal processing module is used for carrying out synchronous processing on the multi-path current signals output by the photoelectric detection array to obtain optical pulse signals of different wave bands;
s300: and calculating the intensity proportional relation of the optical pulse signals of different wave bands by using a diagnosis module, and determining the type and the severity of the partial discharge.
Preferably, in step S300, the types of the partial discharge include a levitation discharge, a corona discharge, and a creeping discharge.
Preferably, in step S300, the severity of the partial discharge includes a high-energy discharge, a medium-energy discharge, and a low-energy discharge.
Compared with the prior art, the beneficial effect that this disclosure brought does: the device has the advantages of small volume, large detection range, high detection sensitivity, strong anti-electromagnetic interference capability and suitability for partial discharge diagnosis in power equipment.
Drawings
Fig. 1 is a schematic structural diagram of a partial discharge multispectral weak light detection device according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a signal processing module according to an embodiment of the present disclosure;
FIG. 3 is a block circuit diagram of circuitry within a signal processing module provided by one embodiment of the present disclosure;
fig. 4 is a schematic diagram of a multispectral skeletal structure provided by an embodiment of the present disclosure.
Detailed Description
Specific embodiments of the present disclosure will be described in detail below with reference to fig. 1 to 4. While specific embodiments of the disclosure are shown in the drawings, it should be understood that the disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It should be noted that certain terms are used throughout the description and claims to refer to particular components. As one skilled in the art will appreciate, various names may be used to refer to a component. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. The description which follows is a preferred embodiment of the invention, but is made for the purpose of illustrating the general principles of the invention and not for the purpose of limiting the scope of the invention. The scope of the present disclosure is to be determined by the terms of the appended claims.
To facilitate an understanding of the embodiments of the present disclosure, the following detailed description is to be considered in conjunction with the accompanying drawings, and the drawings are not to be construed as limiting the embodiments of the present disclosure.
In one embodiment, as shown in fig. 1, the present disclosure provides a partial discharge multispectral weak light detection device, comprising: a condenser lens, a filter, a photoelectric detection array, a signal processing module and a diagnosis module, wherein,
the condensing lens and the filter are positioned on the same light path, and are used for converging and filtering weak light signals generated by partial discharge in the tested power equipment so as to obtain partial discharge multispectral signals with different wave bands, and the condensing lens and the filter are arranged at the input end of the photoelectric detection array;
the photoelectric detection array is used for synchronously detecting and receiving the partial discharge multispectral signals and converting the partial discharge multispectral signals into a plurality of paths of current signals;
the signal processing module is connected to the output end of the photoelectric detection array and used for synchronously processing the multiple paths of current signals output by the photoelectric detection array to obtain optical pulse signals of different wave bands;
the diagnosis module is connected to the output end of the signal processing module and used for receiving the optical pulse signals of different wave bands, calculating the intensity proportional relation of the optical pulse signals of different wave bands and judging the type and the severity of partial discharge in the power equipment according to the proportional relation.
The method comprises the steps of converging and filtering optical signals generated by partial discharge in the power equipment through a condenser lens and a filter lens to form partial discharge multispectral signals of different wave bands, respectively receiving the partial discharge multispectral signals passing through the condenser lens and the filter lens through a photoelectric detection array and converting the partial discharge multispectral signals into current signals, carrying out current-voltage conversion, voltage signal amplification and signal analog-to-digital conversion on a plurality of paths of current signals output by the photoelectric detection array through a signal processing module to obtain optical pulse signals of different wave bands, and finally realizing judgment on the type and the severity of the partial discharge by calculating the intensity proportional relation of the optical pulse signals of different wave bands. The existing common detection device can only provide a detection range just facing the area size of the photoelectric detection array, the detection range can be effectively increased by using the condensing lens in the embodiment, in addition, the device can provide detection sensitivity not less than 5pC, and the device has the characteristics of high detection sensitivity and electromagnetic interference immunity, and can realize new rapid and accurate detection of partial discharge in power equipment.
In another embodiment, the photo-detection array comprises a plurality of independently disposed detection units, each detection unit comprising any one of a single photon level silicon photomultiplier tube and an avalanche diode.
In this embodiment, the photo-detection array comprises a plurality of individual photo-detection units, each unit receiving optical signals in a plurality of spectral ranges through a condensing lens and a filter, wherein each photo-detection unit adopts a single-photon-level silicon photo-multiplier tube or avalanche diode, and compared with a traditional photo-multiplier tube, the single-photon-level silicon photo-multiplier tube or avalanche diode has a single-chip area of only 3 × 3mm2The volume of the array thus constituted does not exceed 3 x 0.8cm3And is far smaller than the volume of the traditional photoelectric multiplication.
In another embodiment, as shown in fig. 2, the signal processing module includes the same number of signal processing units as the number of the detecting units, and each signal processing unit includes:
the current-voltage conversion circuit is used for converting the multi-path current signals output by the photoelectric detection array into first voltage signals;
the signal amplification circuit is used for receiving the first voltage signal and amplifying the first voltage signal to generate a second voltage signal;
and the analog-to-digital converter is used for receiving the second voltage signal and converting the second voltage signal into optical pulse signals of different wave bands.
In another embodiment, as shown in fig. 3, the current-voltage conversion circuit includes a first inverting amplifier and a first feedback resistor, an inverting input terminal of the first inverting amplifier is connected to the silicon photomultiplier, and is connected to an output terminal through the first feedback resistor to form a negative feedback circuit, and a non-inverting input terminal of the first inverting amplifier is connected to ground.
In the embodiment, when the photodetection array is irradiated by an optical signal generated by partial discharge in the power equipment, a photocurrent is generated, the inverting input terminal of the inverting amplifier receives the photocurrent, and the inverting input terminal of the inverting amplifier is connected with the output terminal through the first feedback resistor Z1 to form a negative feedback circuit.
In another embodiment, as shown in fig. 3, the signal amplifying circuit includes a second inverting amplifier, a second feedback resistor, a ground resistor, and a first load resistor, an inverting input terminal of the second inverting amplifier is connected to the output terminal of the current-voltage converting circuit, meanwhile, the inverting input terminal of the second inverting amplifier is connected to the output terminal through the second feedback resistor to form a negative feedback circuit, a non-inverting input terminal of the second inverting amplifier is connected to the ground through the ground resistor, and the output terminal of the second inverting amplifier is connected to the first load resistor.
In this embodiment, the first voltage signal output by the current-voltage conversion circuit is applied to the inverting input terminal of the operational amplifier through the resistor Z2, and the output voltage is fed back to the inverting input terminal of the operational amplifier through the second feedback resistor, thereby forming a voltage parallel negative feedback amplifying circuit.
In another embodiment, the optical filter includes any one of: a planar filter which is arranged in front of or behind the condenser lens, and a filter coating film which is electroplated on the surface of the condenser lens or the photoelectric detection array.
In this embodiment, the planar filter or the filter coating may perform filtering including low pass, band pass, or high pass on light rays in a plurality of spectral ranges from ultraviolet to infrared (200nm to 900nm), where it is noted that there is a difference between the plurality of spectral ranges, or there may be a partial intersection.
In another embodiment, as shown in fig. 4, the planar optical filter is fixed by a multispectral framework, and the photodetection array is disposed in a groove of the multispectral framework and attached to the planar optical filter by a window disposed at the bottom of the groove.
In this embodiment, for example, 16 windows are provided in the multispectral skeleton, corresponding to 16 individual slices of the photodetector array, and the detector array is embedded in the recess. The optical filter is placed in the window, the multispectral framework is fixedly installed on the circuit board through nylon screws, the optical filter is attached to the surface of the sensor, and the framework is made of light-tight materials, so that partial discharge luminescence is prevented from leaking into the sensor without passing through the optical filter.
In another embodiment, the present disclosure further provides a partial discharge multispectral weak light detection method, including the following steps:
s100: synchronously detecting multispectral signals generated by partial discharge in the power equipment by using a photoelectric detection array and converting the multispectral signals into multipath current signals;
s200: a signal processing module is used for carrying out synchronous processing on the multi-path current signals output by the photoelectric detection array to obtain optical pulse signals of different wave bands;
s300: and calculating the intensity proportional relation of the optical pulse signals of different wave bands by using a diagnosis module, and determining the type and the severity of the partial discharge.
In this embodiment, the light pulse intensities in different bands are calculated in real time or accumulated and counted within a certain time, so that a proportional relationship between the light pulse intensities in each spectrum can be obtained, and the discharge type and severity of partial discharge in the power equipment can be diagnosed according to the proportional relationship.
Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments and application fields, and the above-described embodiments are illustrative, instructive, and not restrictive. Those skilled in the art, having the benefit of this disclosure, may effect numerous modifications thereto without departing from the scope of the invention as defined by the appended claims.
Claims (10)
1. A partial discharge multi-spectral weak light detection device, comprising: a condenser lens, a filter, a photoelectric detection array, a signal processing module and a diagnosis module, wherein,
the condensing lens and the filter are positioned on the same light path, and are used for converging and filtering weak light signals generated by partial discharge in the tested power equipment so as to obtain partial discharge multispectral signals with different wave bands, and the condensing lens and the filter are arranged at the input end of the photoelectric detection array;
the photoelectric detection array is used for synchronously detecting and receiving the partial discharge multispectral signals and converting the partial discharge multispectral signals into a plurality of paths of current signals;
the signal processing module is connected to the output end of the photoelectric detection array and used for synchronously processing the multiple paths of current signals output by the photoelectric detection array to obtain optical pulse signals of different wave bands;
the diagnosis module is connected to the output end of the signal processing module and used for receiving the optical pulse signals of different wave bands, calculating the intensity proportional relation of the optical pulse signals of different wave bands and judging the type and the severity of partial discharge in the power equipment according to the proportional relation.
2. The apparatus of claim 1, wherein the photo-detection array preferably comprises a plurality of independently disposed detection units, each detection unit comprising any one of a single photon level silicon photomultiplier and an avalanche diode.
3. The apparatus of claim 2, wherein the signal processing module comprises the same number of signal processing units as the number of detection units, each signal processing unit comprising:
the current-voltage conversion circuit is used for converting the multi-path current signals output by the photoelectric detection array into first voltage signals;
the signal amplification circuit is used for receiving the first voltage signal and amplifying the first voltage signal to generate a second voltage signal;
and the analog-to-digital converter is used for receiving the second voltage signal and converting the second voltage signal into optical pulse signals of different wave bands.
4. The apparatus of claim 3, wherein the current-to-voltage conversion circuit comprises a first inverting amplifier and a first feedback resistor, an inverting input terminal of the first inverting amplifier is connected to the silicon photomultiplier and is connected to an output terminal through the first feedback resistor to form a negative feedback circuit, and a non-inverting input terminal of the first inverting amplifier is connected to ground.
5. The apparatus of claim 3, wherein the signal amplifying circuit comprises a second inverting amplifier, a second feedback resistor, a ground resistor, and a first load resistor, wherein an inverting input terminal of the second inverting amplifier is connected to the output terminal of the current-voltage converting circuit, and meanwhile, the inverting input terminal of the second inverting amplifier is connected to the output terminal through the second feedback resistor to form a negative feedback circuit, a non-inverting input terminal of the second inverting amplifier is connected to the ground through the ground resistor, and an output terminal of the second inverting amplifier is connected to the first load resistor.
6. The apparatus of claim 1, wherein the optical filter comprises any of: a planar filter which is arranged in front of or behind the condenser lens, and a filter coating film which is electroplated on the surface of the condenser lens or the photoelectric detection array.
7. The device according to claim 6, wherein the planar filter is fixed by a multispectral skeleton, and the photodetection array is arranged in a groove of the multispectral skeleton and attached to the planar filter through a window arranged at the bottom of the groove.
8. A method of detection by the apparatus of claim 1, comprising the steps of:
s100: synchronously detecting multispectral signals generated by partial discharge in the power equipment by using a photoelectric detection array and converting the multispectral signals into multipath current signals;
s200: a signal processing module is used for carrying out synchronous processing on the multi-path current signals output by the photoelectric detection array to obtain optical pulse signals of different wave bands;
s300: and calculating the intensity proportional relation of the optical pulse signals of different wave bands by using a diagnosis module, and determining the type and the severity of the partial discharge.
9. The method of claim 8, wherein in step S300, the types of partial discharge include a levitation discharge, a corona discharge, and a creeping discharge.
10. The method of claim 8, wherein in step S300, the severity of the partial discharge comprises a high-energy discharge, a medium-energy discharge, and a low-energy discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010154959.6A CN111308289A (en) | 2020-03-06 | 2020-03-06 | Partial discharge multispectral weak light detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010154959.6A CN111308289A (en) | 2020-03-06 | 2020-03-06 | Partial discharge multispectral weak light detection device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111308289A true CN111308289A (en) | 2020-06-19 |
Family
ID=71149517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010154959.6A Pending CN111308289A (en) | 2020-03-06 | 2020-03-06 | Partial discharge multispectral weak light detection device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111308289A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285497A (en) * | 2020-10-13 | 2021-01-29 | 国网江苏省电力有限公司无锡供电分公司 | Partial discharge detection device of gas insulation equipment and gas insulation equipment |
| CN112924822A (en) * | 2021-01-27 | 2021-06-08 | 云南电网有限责任公司电力科学研究院 | Anti-interference method and device for partial discharge weak light detection |
| CN113009295A (en) * | 2021-02-25 | 2021-06-22 | 西安交通大学 | Multispectral monitoring data analysis method for partial discharge |
| CN113009292A (en) * | 2021-02-25 | 2021-06-22 | 西安交通大学 | Partial discharge low-light spectrum detector |
| CN113175950A (en) * | 2021-04-23 | 2021-07-27 | 中国人民解放军陆军工程大学 | Multi-band optical synchronous measuring device for discharge channel and operation method thereof |
| CN113253069A (en) * | 2021-05-19 | 2021-08-13 | 云南电网有限责任公司电力科学研究院 | Partial discharge risk assessment method based on multispectral intensity |
| CN113671329A (en) * | 2021-10-25 | 2021-11-19 | 国网天津市电力公司电力科学研究院 | Multi-band fluorescence transposition partial discharge light radiation detection device and method |
| CN113791318A (en) * | 2021-09-01 | 2021-12-14 | 上海交通大学 | Partial discharge fault identification method and system based on multispectral detection array |
| CN114518474A (en) * | 2022-02-16 | 2022-05-20 | 国网江苏省电力有限公司无锡供电分公司 | Partial discharge signal acquisition device and method based on super-sensitive optical array |
| CN115598470A (en) * | 2022-09-05 | 2023-01-13 | 国网江苏省电力有限公司无锡供电分公司（Cn） | Arc active early warning method and system based on multispectral frequency band |
| CN116754910A (en) * | 2023-08-14 | 2023-09-15 | 广东电网有限责任公司珠海供电局 | Cable partial discharge monitoring method, system and equipment based on multipath optical fiber difference |
Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1744472A (en) * | 2004-08-31 | 2006-03-08 | 富士通株式会社 | Optical pickup apparatus |
| CN201716454U (en) * | 2009-03-30 | 2011-01-19 | 成都博高科技有限责任公司 | Optical filter connecting structure |
| CN103336401A (en) * | 2013-07-03 | 2013-10-02 | 南昌欧菲光电技术有限公司 | Bracket structure and camera shooting module with bracket structure |
| CN103676122A (en) * | 2013-06-24 | 2014-03-26 | 张晨 | Small fluorescent/bright field optical imaging system, optical imaging method and purpose thereof |
| CN203658527U (en) * | 2014-01-07 | 2014-06-18 | 云南电网公司昭通供电局 | An ultrasonic partial discharge detection device for high-voltage electrical equipment |
| CN104749858A (en) * | 2015-03-12 | 2015-07-01 | 南昌欧菲光电技术有限公司 | Bracket for camera die set and camera die set |
| CN105929312A (en) * | 2016-04-28 | 2016-09-07 | 华北电力大学（保定） | Electrical equipment partial discharge source direction finding apparatus |
| CN106125461A (en) * | 2016-08-30 | 2016-11-16 | 杭州日月电子有限公司 | A kind of new structure straight line optical-filter switcher |
| CN206362883U (en) * | 2016-12-05 | 2017-07-28 | 国网河南省电力公司安阳供电公司 | A kind of transmission line of electricity shelf depreciation information collecting device |
| CN107044886A (en) * | 2017-01-20 | 2017-08-15 | 武汉呵尔医疗科技发展有限公司 | A kind of multiband spectrum imaging source, imaging method and microscope |
| CN107807310A (en) * | 2016-09-09 | 2018-03-16 | 中国科学院深圳先进技术研究院 | Non-contact bow net arcing detection system |
| CN207164195U (en) * | 2017-08-25 | 2018-03-30 | 国家电网公司 | The triple channel Portable transformer substation monitoring device of ultraviolet joint infrared thermal imagery |
| CN207200830U (en) * | 2017-05-16 | 2018-04-06 | 昆山丘钛微电子科技有限公司 | The direct attaching type miniaturization cam device of optical filter |
| CN107991586A (en) * | 2017-11-23 | 2018-05-04 | 北京环境特性研究所 | A kind of high-tension electricity equipment leakage detection device and its implementation |
| CN108332855A (en) * | 2018-05-16 | 2018-07-27 | 德州尧鼎光电科技有限公司 | A kind of hyperspectral imager device of Wavelength tunable |
| CN108700517A (en) * | 2016-02-22 | 2018-10-23 | 株式会社日立高新技术 | Luminescence detection apparatus |
| CN109001114A (en) * | 2018-06-20 | 2018-12-14 | 中国科学院国家天文台南京天文光学技术研究所 | Multiple light courcess multipurpose scanner |
| CN208477060U (en) * | 2018-04-17 | 2019-02-05 | 成都唐源电气股份有限公司 | A kind of bow net electric arc detecting device |
| CN109738768A (en) * | 2018-12-10 | 2019-05-10 | 国网浙江省电力有限公司金华供电公司 | A kind of switchgear electric arc on-line measuring device |
| CN109782142A (en) * | 2019-03-29 | 2019-05-21 | 云南电网有限责任公司电力科学研究院 | A kind of GIS partial discharge detection device and system |
| CN110108309A (en) * | 2019-03-26 | 2019-08-09 | 长江大学 | A kind of high sensitivity photoelectric sensor device |
| CN110823854A (en) * | 2019-12-12 | 2020-02-21 | 中国科学院长春光学精密机械与物理研究所 | Fluorescence spectrum detection system of microorganism |
-
2020
- 2020-03-06 CN CN202010154959.6A patent/CN111308289A/en active Pending
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1744472A (en) * | 2004-08-31 | 2006-03-08 | 富士通株式会社 | Optical pickup apparatus |
| CN201716454U (en) * | 2009-03-30 | 2011-01-19 | 成都博高科技有限责任公司 | Optical filter connecting structure |
| CN103676122A (en) * | 2013-06-24 | 2014-03-26 | 张晨 | Small fluorescent/bright field optical imaging system, optical imaging method and purpose thereof |
| CN103336401A (en) * | 2013-07-03 | 2013-10-02 | 南昌欧菲光电技术有限公司 | Bracket structure and camera shooting module with bracket structure |
| CN203658527U (en) * | 2014-01-07 | 2014-06-18 | 云南电网公司昭通供电局 | An ultrasonic partial discharge detection device for high-voltage electrical equipment |
| CN104749858A (en) * | 2015-03-12 | 2015-07-01 | 南昌欧菲光电技术有限公司 | Bracket for camera die set and camera die set |
| CN108700517A (en) * | 2016-02-22 | 2018-10-23 | 株式会社日立高新技术 | Luminescence detection apparatus |
| CN105929312A (en) * | 2016-04-28 | 2016-09-07 | 华北电力大学（保定） | Electrical equipment partial discharge source direction finding apparatus |
| CN106125461A (en) * | 2016-08-30 | 2016-11-16 | 杭州日月电子有限公司 | A kind of new structure straight line optical-filter switcher |
| CN107807310A (en) * | 2016-09-09 | 2018-03-16 | 中国科学院深圳先进技术研究院 | Non-contact bow net arcing detection system |
| CN206362883U (en) * | 2016-12-05 | 2017-07-28 | 国网河南省电力公司安阳供电公司 | A kind of transmission line of electricity shelf depreciation information collecting device |
| CN107044886A (en) * | 2017-01-20 | 2017-08-15 | 武汉呵尔医疗科技发展有限公司 | A kind of multiband spectrum imaging source, imaging method and microscope |
| CN207200830U (en) * | 2017-05-16 | 2018-04-06 | 昆山丘钛微电子科技有限公司 | The direct attaching type miniaturization cam device of optical filter |
| CN207164195U (en) * | 2017-08-25 | 2018-03-30 | 国家电网公司 | The triple channel Portable transformer substation monitoring device of ultraviolet joint infrared thermal imagery |
| CN107991586A (en) * | 2017-11-23 | 2018-05-04 | 北京环境特性研究所 | A kind of high-tension electricity equipment leakage detection device and its implementation |
| CN208477060U (en) * | 2018-04-17 | 2019-02-05 | 成都唐源电气股份有限公司 | A kind of bow net electric arc detecting device |
| CN108332855A (en) * | 2018-05-16 | 2018-07-27 | 德州尧鼎光电科技有限公司 | A kind of hyperspectral imager device of Wavelength tunable |
| CN109001114A (en) * | 2018-06-20 | 2018-12-14 | 中国科学院国家天文台南京天文光学技术研究所 | Multiple light courcess multipurpose scanner |
| CN109738768A (en) * | 2018-12-10 | 2019-05-10 | 国网浙江省电力有限公司金华供电公司 | A kind of switchgear electric arc on-line measuring device |
| CN110108309A (en) * | 2019-03-26 | 2019-08-09 | 长江大学 | A kind of high sensitivity photoelectric sensor device |
| CN109782142A (en) * | 2019-03-29 | 2019-05-21 | 云南电网有限责任公司电力科学研究院 | A kind of GIS partial discharge detection device and system |
| CN110823854A (en) * | 2019-12-12 | 2020-02-21 | 中国科学院长春光学精密机械与物理研究所 | Fluorescence spectrum detection system of microorganism |
Non-Patent Citations (3)
| Title |
|---|
| MING REN 等: "Multispectral detection of partial discharge in SF6 gas with siliconphotomultiplier-based sensor array", 《SENSORS AND ACTUATORS A》 * |
| 刘嘉林 等: "SF6气体中电晕放电的多光谱脉冲特性研究", 《绝缘材料》 * |
| 刘嘉林 等: "SF6气体中电晕放电的紫外光、可见光及近红外光脉冲特性研究", 《绝缘材料》 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022077965A1 (en) * | 2020-10-13 | 2022-04-21 | 国网江苏省电力有限公司无锡供电分公司 | Partial discharge detection device of gas insulation device |
| CN112285497A (en) * | 2020-10-13 | 2021-01-29 | 国网江苏省电力有限公司无锡供电分公司 | Partial discharge detection device of gas insulation equipment and gas insulation equipment |
| CN112285497B (en) * | 2020-10-13 | 2024-05-10 | 国网江苏省电力有限公司无锡供电分公司 | Partial discharge detection device of gas insulation equipment and gas insulation equipment |
| US11821932B2 (en) | 2020-10-13 | 2023-11-21 | Wuxi Power Supply Branch Of State Grid Jiangsu Electric Power Co., Ltd. | Partial discharge (PD) detection apparatus for gas-insulated equipment |
| CN112924822A (en) * | 2021-01-27 | 2021-06-08 | 云南电网有限责任公司电力科学研究院 | Anti-interference method and device for partial discharge weak light detection |
| CN113009295A (en) * | 2021-02-25 | 2021-06-22 | 西安交通大学 | Multispectral monitoring data analysis method for partial discharge |
| CN113009292A (en) * | 2021-02-25 | 2021-06-22 | 西安交通大学 | Partial discharge low-light spectrum detector |
| CN113009295B (en) * | 2021-02-25 | 2022-05-06 | 西安交通大学 | Multispectral monitoring data analysis method for partial discharge |
| CN113009292B (en) * | 2021-02-25 | 2021-12-28 | 西安交通大学 | Partial discharge low-light spectrum detector |
| CN113175950A (en) * | 2021-04-23 | 2021-07-27 | 中国人民解放军陆军工程大学 | Multi-band optical synchronous measuring device for discharge channel and operation method thereof |
| CN113253069A (en) * | 2021-05-19 | 2021-08-13 | 云南电网有限责任公司电力科学研究院 | Partial discharge risk assessment method based on multispectral intensity |
| CN113791318A (en) * | 2021-09-01 | 2021-12-14 | 上海交通大学 | Partial discharge fault identification method and system based on multispectral detection array |
| CN113671329B (en) * | 2021-10-25 | 2022-05-24 | 国网天津市电力公司电力科学研究院 | Multi-band fluorescence transposition partial discharge light radiation detection device and method |
| CN113671329A (en) * | 2021-10-25 | 2021-11-19 | 国网天津市电力公司电力科学研究院 | Multi-band fluorescence transposition partial discharge light radiation detection device and method |
| CN114518474A (en) * | 2022-02-16 | 2022-05-20 | 国网江苏省电力有限公司无锡供电分公司 | Partial discharge signal acquisition device and method based on super-sensitive optical array |
| CN115598470A (en) * | 2022-09-05 | 2023-01-13 | 国网江苏省电力有限公司无锡供电分公司（Cn） | Arc active early warning method and system based on multispectral frequency band |
| CN116754910A (en) * | 2023-08-14 | 2023-09-15 | 广东电网有限责任公司珠海供电局 | Cable partial discharge monitoring method, system and equipment based on multipath optical fiber difference |
| CN116754910B (en) * | 2023-08-14 | 2024-01-09 | 广东电网有限责任公司珠海供电局 | Cable partial discharge monitoring method, system and equipment based on multipath optical fiber difference |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111308289A (en) | Partial discharge multispectral weak light detection device and method | |
| CN107462566B (en) | Raman spectrometer for detecting specific narrow wavenumber range | |
| CN102230952A (en) | Corona detection method based on ultraviolet photons | |
| CN102147365A (en) | Handheld bioluminescent detector and detection method | |
| CN106969833B (en) | A kind of the ultraviolet detector system and its application of big visual field | |
| CN207300890U (en) | For detecting the Raman spectrometer of specific narrow wave-number range | |
| US11821932B2 (en) | Partial discharge (PD) detection apparatus for gas-insulated equipment | |
| CN201725011U (en) | Alternating Current (AC) measuring device of solar battery quantum efficiency | |
| CN110926762B (en) | System and method for detecting out-of-band inhibition capability of ultraviolet imager | |
| Mik et al. | Silicon photomultiplier as fluorescence light detector | |
| CN105588826B (en) | A kind of femtosecond time resolution multiple tracks locking phase Fluorescence Spectrometer based on optically erasing | |
| CN101871992A (en) | Alternating current measuring device for quantum efficiency of solar battery and using method thereof | |
| CN202057599U (en) | Micro multispectral fluorescent light receiving and processing system | |
| CN1387034A (en) | Method and device for quickly measuring photosynthesizing speed of delay light generated by visiblelight inducing | |
| CN206146837U (en) | A optics and detecting system for multichannel atomic fluorescence spectrophotometer | |
| CN216594771U (en) | Wide dynamic range fluorescence detection module for fluorescence imaging device | |
| CN101893679A (en) | Direct-current measuring device for quantum efficiency of solar cell and using method thereof | |
| CN212321045U (en) | Transient electroluminescence detection device | |
| CN114923590A (en) | Method and system for accurately measuring weak photons based on photomultiplier | |
| CN108152252A (en) | A kind of integration type femtosecond time resolution fluorescence lifetime measurement spectrometer | |
| CN111504497B (en) | Temperature measurement method based on fluorescent optical fiber | |
| CN110672498B (en) | High-concentration particle counting method using space segmentation and time correlation | |
| CN112630204A (en) | Hand-held fluorescence detector | |
| CN108051842B (en) | The measuring system and measurement method of scintillation crystal single-particle excitation time resolved spectroscopy | |
| CN113009292B (en) | Partial discharge low-light spectrum detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200619 |
|
| RJ01 | Rejection of invention patent application after publication |