CN205079779U - Realize multi -functional optical fiber sensor of temperature measurement and little ultraviolet ray detection - Google Patents
Realize multi -functional optical fiber sensor of temperature measurement and little ultraviolet ray detection Download PDFInfo
- Publication number
- CN205079779U CN205079779U CN201520859557.0U CN201520859557U CN205079779U CN 205079779 U CN205079779 U CN 205079779U CN 201520859557 U CN201520859557 U CN 201520859557U CN 205079779 U CN205079779 U CN 205079779U
- Authority
- CN
- China
- Prior art keywords
- led
- optical fiber
- light
- ultraviolet ray
- circuit
- 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.)
- Expired - Fee Related
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 38
- 238000001514 detection method Methods 0.000 title abstract description 12
- 238000009529 body temperature measurement Methods 0.000 title abstract description 7
- 238000012545 processing Methods 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 230000003321 amplification Effects 0.000 claims description 14
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 14
- 230000005693 optoelectronics Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000000835 fiber Substances 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 14
- 238000010897 surface acoustic wave method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Landscapes
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The utility model provides a realize multi -functional optical fiber sensor of temperature measurement and little ultraviolet ray detection, including the fluorescence sensing head that connects gradually, multimode fiber and detection device, detection device includes LED transmission subassembly, a central processing unit, a photo detector, light -receiving amplifier circuit, trigger warning circuit, the RS485 interface reaches the power for each module power supply, photoelectric detector's optical input end is connected with multimode fiber, the photoelectric conversion output is connected with light -receiving amplifier circuit, LED launches the subassembly, light -receiving amplifier circuit, trigger warning circuit, the RS485 interface is connected with central processing unit respectively, LED transmission subassembly is used for aiming at multimode fiber's entrance port transmission ultraviolet ray. The utility model discloses unite two into one ultraviolet ray monitoring with fluorescence temperature sensor, realized different the detections functions of ultraviolet ray with the temperature in same sensor, compact structure, and the cost reduces by a wide margin, and the messenger promotes electric wire netting office on a large scale puts on -line monitoring application enable.
Description
Technical field
The utility model relates to system for distribution network of power equipment failure hidden danger monitoring technical field, specifically a kind of Multifunctional optical fiber sensor realizing temperature survey and micro-ultraviolet detector.
Background technology
The potential safety hazard of power system device is all the problem that must pay much attention to all the time, pressure increase in such as ageing equipment, the abnormal rising of connector temperature, cabinet, load current sudden change, equipment surface shelf depreciation flashover even produce electric arc etc., the generation getting up early of these faults of son all can some abnormal sign under normal circumstances, catch these abnormal signs accurately and give warning in advance, in time care and maintenance is carried out to equipment, just likely effectively avoid the generation of accident.
At present, to grid equipment surface and the monitoring of contact temperature, artificial infrared radiation detection apparatus is had to carry out the method for field observation record and the method with wireless temperature measurement, but artificial thermometric cannot be accomplished in real time, infrared measurement of temperature precision also can not meet requirement, and popular wireless temperature measurement method, compare with optical fiber temperature-measurement, except poor anti jamming capability, also need to consider battery altering problem, or get can power to temperature measurement module with small current mutual inductor, again the signal that thermometric obtains is radioed to receiver by wireless chip, although this scheme achieves the wireless transmission of temperature signal, but because powered battery needs timing to change battery, and battery summer high-temperature resistance poor, impact is brought to the operation of power department, and adopting current transformer to get energy, sensing head volume is comparatively large, and whether convenient the position laid is very large on power taking impact, lacks general adaptability.Also have the design of a kind of employing surface acoustic wave techniques, carry out measuring tempeature according to the SAW (Surface Acoustic Wave) device concussion frequency change that temperature variation causes.The core component of SAW (Surface Acoustic Wave) device is SAW oscillator, and its passive principle of work eliminates powerup issue, overcomes the problem of active radio temp measuring method.But this technology is also in early stage of development, also there is the problems such as antijamming capability under strong electric field environment is not strong, less stable at present, be difficult to realize applying on a large scale.
The method that power industry detects shelf depreciation is a lot.Popular at present have ultraviolet image method, supercritical ultrasonics technology and ultrahigh frequency method etc.These detection methods have respective advantage in different, are also obtained for application to a certain degree in practice, but also all there is respective problem simultaneously.Adopt ultraviolet image method to be method more advanced at present to shelf depreciation measurement, principle is also adopt ultraviolet detector, but holds at high price, bring suitable difficulty to popularization; Adopting ultrahigh frequency method to detect shelf depreciation is ultrahigh frequency (300 ~ 3000MHz) electric signal produced by checkout equipment inside, and realize the detection and positioning of shelf depreciation, its sensor is actually the antenna receiving ultra-high frequency signal.The advantage of ultra-high-frequency detection method is can the shelf depreciation of detecting devices built-in electrical insulation, but fatal weakness is high frequency poor anti jamming capability; Adopting supercritical ultrasonics technology to detect shelf depreciation is that realize the detection and positioning of shelf depreciation, the method precision reliability does not all reach requirement by detecting the ultrasound wave produced in gas discharge.
Summary of the invention
The utility model provides a kind of Multifunctional optical fiber sensor realizing temperature survey and micro-ultraviolet detector, and its structure optimization, cost significantly reduce, be not vulnerable to the interference of environmental factor, accuracy of detection reliability is high.
A kind of Multifunctional optical fiber sensor realizing temperature survey and micro-ultraviolet detector, comprise the fluorescence sense head connected successively, multimode optical fiber and pick-up unit, described pick-up unit comprises LED emitting module, central processing unit, photodetector, light receiving amplification circuit, trigger alerts circuit, RS485 interface and the power supply of powering for modules, the light input end of photodetector is connected with multimode optical fiber, opto-electronic conversion output terminal is connected with light receiving amplification circuit, LED emitting module, light receiving amplification circuit, trigger alerts circuit, RS485 interface is connected with central processing unit respectively, LED emitting module is for aiming at the entrance port emitting ultraviolet light of multimode optical fiber.
Further, the described LED emitting module LED, the 2nd LED that comprise the both sides being up and down distributed in multimode optical fiber and the LED that is connected with a LED, the 2nd LED launches driving circuit.
Further, a LED, the 2nd LED aim at the incident angle <60 degree of multimode optical fiber emitting ultraviolet light.
Further, central processing unit launches for control LED fluorescent lifetime and the intensity that driving circuit drives a LED, the 2nd LED, according to the electric signal accounting temperature value that light receiving amplification circuit transmits, communicated with central control room through RS485 interface by Modbus agreement.
Ultraviolet light monitoring unites two into one with fluorescence temperature sensor by the utility model, have employed the active and passive technological means combined, the different detecting functions of ultraviolet light and temperature are achieved in same sensor, simultaneously by sending self-inspection light pulse, the object of optical fiber self-inspection (self-test) can be reached, with existing by compared with expensive ultraviolet imager and temperature sensor, compact conformation, cost significantly reduces simultaneously, and low cost high performance-price ratio makes large-scale promotion powernet office put monitoring and measuring application becomes possibility.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model realizes the Multifunctional optical fiber sensor of temperature survey and micro-ultraviolet detector.
In figure: 10-fluorescence sense head, 20-multimode optical fiber, 30-pick-up unit, 31-the one LED, 32-the two LED, 33-LED launch driving circuit, 34-central processing unit, 35-photodetector, 36-light receiving amplification circuit, 37-trigger alerts circuit, 38-RS485 interface, 39-power supply, 40-central control room.
Embodiment
Below in conjunction with the accompanying drawing in the utility model, the technical scheme in the utility model is clearly and completely described.
Figure 1 shows that the utility model realizes the structural representation of the Multifunctional optical fiber sensor of temperature survey and micro-ultraviolet detector, described Multifunctional optical fiber sensor comprises fluorescence sense head 10, multimode optical fiber 20 and pick-up unit 30, fluorescence sense head 10 is connected with pick-up unit 30 by optical fiber 20, fluorescence sense head 10 to vary with temperature according to its fluorescence decay phase and the principle changed is made, and ultraviolet light is transformed into visible ray simultaneously and passes in multimode optical fiber 20.
The power supply 39 that pick-up unit 30 comprises LED emitting module, central processing unit 34, photodetector 35, light receiving amplification circuit 36, trigger alerts circuit 37, RS485 interface 38 and powers for modules, the light input end of photodetector 35 is connected with multimode optical fiber 20, opto-electronic conversion output terminal is connected with light receiving amplification circuit 36, and LED emitting module, light receiving amplification circuit 36, trigger alerts circuit 37, RS485 interface 38 are connected with central processing unit 34 respectively.
Described LED emitting module is two LED transmitter units, the LED comprising a LED31, the 2nd LED32 and be connected with a LED31, the 2nd LED32 launches driving circuit 33, one LED31, the 2nd LED32 are distributed in the both sides up and down of multimode optical fiber 20, aim at the entrance port emitting ultraviolet light of multimode optical fiber 20, incident angle <60 degree, arrives fluorescence sense head 10 back reflection and returns to be detected by photodetector 35 to receive with the detection carrying out temperature after ultraviolet light enters multimode optical fiber 20.Adopting two LED light source to launch is to ensure that enough excitation intensities are with excitated fluorescent powder, thus increases temperature measurement accuracy and reliability.
The utility model Fibre Optical Sensor is arranged on open space, and such as bus-bar room or other easy places producing electric discharge, multimode optical fiber 20 installation interval is maximum can reach 5 meters.The photosensitive part of fluorescence sense head 10 is arranged in 10mm hole, towards the part that will protect, fixes with self-tapping screw.
Multimode optical fiber 20 by standard ST joint or SMA905 joint access photodetector 35, and is arranged in instrument pulpit.In apparatus local discharge process, be attended by luminous radiation phenomenon, its radiation spectrum comprises visible ray, infrared ray, ultraviolet, when fluorescence sense head 10 receives ultraviolet light, is sent to photodetector 35 by multimode optical fiber 20.
After photodetector 35 receives the light signal that multimode optical fiber 20 transmits, be transformed into electric signal and do to amplify process through light receiving amplification circuit 36, when signal exceedes certain threshold value, (acquiescence is 2.5V, also can be arranged by central processing unit 34), central processing unit 34 controls trigger alerts circuit 37 trigger alerts and exports; The output terminal of trigger alerts circuit 37 can be connected with relay protection switch, makes corresponding protection act with pilot relay protection switch.
Central processing unit 34 launches driving circuit 33 for control LED, drive the light time and intensity of a LED31, the 2nd LED32, the electric signal accounting temperature value of central processing unit 34 also for transmitting according to light receiving amplification circuit 36, and communicated with central control room 40 through RS485 interface 48 by Modbus agreement, carry out corresponding event record and data storage, monitoring point temperature and electric discharge luminous energy data by being presented on the display of central control room 40, can carry out sound and light alarm or interface display warning according to the early warning of setting and alarming value simultaneously.
Ultraviolet light monitoring unites two into one with fluorescence temperature sensor by the utility model, have employed the active and passive technological means combined, the different detecting functions of ultraviolet light and temperature are achieved in same sensor, simultaneously by sending self-inspection light pulse, the object of optical fiber self-inspection (self-test) can be reached, with existing by compared with expensive ultraviolet imager and temperature sensor, compact conformation, cost significantly reduces simultaneously, and low cost high performance-price ratio makes large-scale promotion powernet office put monitoring and measuring application becomes possibility.
The above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly belong to those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (4)
1. one kind realizes the Multifunctional optical fiber sensor of temperature survey and micro-ultraviolet detector, it is characterized in that: comprise the fluorescence sense head (10) connected successively, multimode optical fiber (20) and pick-up unit (30), described pick-up unit (30) comprises LED emitting module, central processing unit (34), photodetector (35), light receiving amplification circuit (36), trigger alerts circuit (37), RS485 interface (38) and the power supply (39) of powering for modules, the light input end of photodetector (35) is connected with multimode optical fiber (20), opto-electronic conversion output terminal is connected with light receiving amplification circuit (36), LED emitting module, light receiving amplification circuit (36), trigger alerts circuit (37), RS485 interface (38) is connected with central processing unit (34) respectively, LED emitting module is for aiming at the entrance port emitting ultraviolet light of multimode optical fiber (20).
2. realize the Multifunctional optical fiber sensor of temperature survey and micro-ultraviolet detector as claimed in claim 1, it is characterized in that: a LED (31), the 2nd LED (32) that described LED emitting module comprises the both sides being up and down distributed in multimode optical fiber (20) and the LED be connected with a LED (31), the 2nd LED (32) launch driving circuit (33).
3. realize the Multifunctional optical fiber sensor of temperature survey and micro-ultraviolet detector as claimed in claim 2, it is characterized in that: a LED (31), the 2nd LED (32) aim at the incident angle <60 degree of multimode optical fiber (20) emitting ultraviolet light.
4. realize the Multifunctional optical fiber sensor of temperature survey and micro-ultraviolet detector as claimed in claim 1, it is characterized in that: central processing unit (34) launches for control LED fluorescent lifetime and the intensity that driving circuit (33) drives a LED (31), the 2nd LED (32), according to the electric signal accounting temperature value that light receiving amplification circuit (36) transmits, communicated with central control room (40) through RS485 interface (48) by Modbus agreement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859557.0U CN205079779U (en) | 2015-10-30 | 2015-10-30 | Realize multi -functional optical fiber sensor of temperature measurement and little ultraviolet ray detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859557.0U CN205079779U (en) | 2015-10-30 | 2015-10-30 | Realize multi -functional optical fiber sensor of temperature measurement and little ultraviolet ray detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205079779U true CN205079779U (en) | 2016-03-09 |
Family
ID=55432181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520859557.0U Expired - Fee Related CN205079779U (en) | 2015-10-30 | 2015-10-30 | Realize multi -functional optical fiber sensor of temperature measurement and little ultraviolet ray detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205079779U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576340A (en) * | 2017-07-31 | 2018-01-12 | 北京航天控制仪器研究所 | A kind of high-speed impact injures the measurement apparatus and method at moment |
-
2015
- 2015-10-30 CN CN201520859557.0U patent/CN205079779U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576340A (en) * | 2017-07-31 | 2018-01-12 | 北京航天控制仪器研究所 | A kind of high-speed impact injures the measurement apparatus and method at moment |
| CN107576340B (en) * | 2017-07-31 | 2020-07-14 | 北京航天控制仪器研究所 | Measuring device for high-speed impact damage time |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10608830B2 (en) | Power over fiber enabled sensor system | |
| WO2007047862A3 (en) | A system, a tool and a method for communicating with a faulted circuit indicator using a remote display | |
| CN203798898U (en) | High-voltage electriferous display locking device | |
| CN202075376U (en) | GIS (gas-insulated switchgear) partial discharge monitoring device | |
| CN205300800U (en) | Fluorescence optical fiber temperature sensing demodulalation system | |
| CN107808497A (en) | Optical fiber sensing geological disaster management and control device capable of achieving accurate positioning | |
| CN212847074U (en) | Laboratory radiation alarm system based on UWB location | |
| CN205079779U (en) | Realize multi -functional optical fiber sensor of temperature measurement and little ultraviolet ray detection | |
| CN103389519A (en) | Detecting and warning system for laser attacking directions | |
| CN203479963U (en) | Cable partial discharge detection device | |
| CN209910848U (en) | Detection apparatus integrating RFID temperature measurement, transient ground voltage detection and ultrasonic detection | |
| CN107576419A (en) | A kind of optical fiber temperature-measurement device and method | |
| CN205280218U (en) | Lamp house for subway tunnel with alarming function | |
| CN105978619A (en) | Unattended land-based ADS-B receiving station and monitoring system | |
| CN107085929A (en) | A kind of contactless product detection device | |
| CN106568533A (en) | High voltage switch cabinet intelligent online monitoring system | |
| CN207946472U (en) | A power frequency electric field measurement system | |
| CN2504619Y (en) | Conductor connection part temp monitor for high voltage switch cabinet | |
| CN203825757U (en) | Optical fiber anti-intrusion sensing device | |
| CN207730877U (en) | A kind of transient state recording type distribution line failure indicator | |
| CN203134032U (en) | Signal comparison control unit, theftproof alarm unit and invisible electronic fence formed by the same | |
| CN210037040U (en) | Explosion shock wave detector | |
| CN208350901U (en) | A kind of atmosphere Lightning Warning system | |
| CN216696475U (en) | Electromagnetic radiation detector with base station identification function | |
| CN205945742U (en) | Laser communication device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160309 Termination date: 20191030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |