CN203259269U - Florescent plastic optical fiber temperature sensing system - Google Patents
Florescent plastic optical fiber temperature sensing system Download PDFInfo
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- CN203259269U CN203259269U CN201320213823.3U CN201320213823U CN203259269U CN 203259269 U CN203259269 U CN 203259269U CN 201320213823 U CN201320213823 U CN 201320213823U CN 203259269 U CN203259269 U CN 203259269U
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- optical fiber
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- temperature sensing
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Abstract
The utility model provides a florescent plastic optical fiber temperature sensing system for aiming at the defects that a prior-art temperature sensor is not suitable for an intelligent electric network or has low measurement accuracy and a quartz optical fiber temperature sensor has high cost. The florescent plastic optical fiber temperature sensing system comprises the following components: a light source, florescent material, a filter lens, a communication plastic optical fiber, a photoelectric converter, a signal processor and a power supply. The light source transmits a light beam to the florescent material. The florescent material is excitated and emits light. The florescent material is connected with the filter lens. The filter lens is connected with the photoelectric converter through the communication plastic optical fiber. The photoelectric converter is electrically connected with the signal processor. The signal processor is connected with the power supply.
Description
Technical field
The utility model relates to intelligent grid temperature sensing field.
Background technology
Intelligent grid is the up-to-date trend that world today's power system development is changed, and is considered to great scientific and technical innovation and the development trend of 21 century world's electric system.Intelligent grid is exactly the intellectuality of electrical network, it be based upon integrated, at a high speed, on the basis of bidirectional communication network, sensing and the effectively combination such as measuring technique, advanced equipments and control method with the advanced person, realize reliable, the safety, economy of electrical network, efficient, environmental friendliness and use safety, and optimize the operation and management of electrical network.But the power system network complex structure, distribute widely, exist various hidden danger on the network, the contact in the grid equipment and joint etc. all are the key factors of power grid security.Statistics shows, fault is mainly caused by dynamic/static contact in switch cubicle and cable splice long-time heating aging under the large function of current.Therefore, the Real-Time Monitoring potential faults that heats up and cause how is directly connected to the production safety of intelligent grid and stable.
Temperature monitoring method is varied, and wherein should have maximum is temperature sensor.Existing temperature sensor can be divided into contact type temperature sensor and non-contact temperature sensor two large classes.
There is good contacting the test section of contact type temperature sensor with measurand, and then can produce larger measuring error for the very little object of movable body, little target or thermal capacity.Obviously, thermometer is not to be suitable for the long intelligent grid of Engineering Route.
Non-contact temperature sensor adopts radiative thermometric method, can only measure corresponding radiance temperature, radiation temperature or colour temperature.Only have black matrix (absorbing the not catoptrical object of whole radiation) measured temperature is only true temperature.Such as the true temperature of wish mensuration object, then must carry out the correction of material surface emissivity.And the material surface emissivity not only depends on temperature and wavelength, but also with surface state, film relevantly with microstructure etc., therefore be difficult to accurately measure.
At present, a kind of novel fibre optic temperature sensor occurred, can be used for the monitoring intelligent power grid temperature, but use is silica fibre.The silica fibre bending radius is large, and installing continues needs technology, the instrument of specialty, and system cost is high, and to vibration sensing, high to using environmental requirement, these have all limited fibre optic temperature sensor popularizing in the intelligent grid field.
Summary of the invention
The utility model is not suitable for intelligent grid or measures out of true for existing temperature sensor, and the high shortcoming of silica fibre temperature sensor cost, and a kind of fluorescent plastic fiber temperature sensing system is provided.
The technical solution of the utility model is:
A kind of fluorescent plastic fiber temperature sensing system, comprise light source, fluorescent material, optical filtering, communication plastic optical fiber, photoelectric commutator, signal processor and power supply, described light source is launched light beam to fluorescent material, described fluorescent material stimulated luminescence, described fluorescent material connects optical filtering, described optical filtering connects photoelectric commutator by the communication plastic optical fiber, and described photoelectric commutator electrical property connects signal processor, and described signal processor connects power supply.
Above-mentioned fluorescent plastic fiber temperature sensing system also comprises a mainboard, and above-mentioned photoelectric commutator, signal processor and power supply are welded on the mainboard.
Above-mentioned fluorescent material a kind of is chosen as the plastic optical fiber that core has added fluorescer.
The another kind of above-mentioned fluorescent material is chosen as the fluorescent powder that has wrapped up the reflection horizon, and the fluorescent powder two ends condense by jelly, perhaps fluorescent powder and glue condensation by mixing.
Above-mentioned communication plastic optical fiber is SI type or GI plastic optical fiber.
Above-mentioned communication plastic optical fiber connects photoelectric commutator by plastic fiber interface, described photoelectric commutator is built in plastic fiber interface, and described plastic fiber interface is OptoLock connectorless system or the interface that matches with the connector of SMI type or LC type or SC type or SC-RJ type.
The beneficial effects of the utility model are:
Fluorescent plastic fiber temperature sensing system provided by the utility model utilizes the fluorescent material temperature sensor, and utilizes the plastic optical fiber signal transmission.Fluorescent material is very responsive to temperature variation, its characteristic changes along with the variation of temperature, and the plastic optical fiber bandwidth, transfer rate is fast, and be not subjected to electromagnetic interference influence, the data precision is high, both combinations, improved real-time, the accuracy of fluorescent plastic fiber temperature sensing system, and the transmission meeting of not worrying light signal exerts an influence to the electric signal of intelligent grid.Simultaneously, plastic optical fiber is cheap, installation continues and need not professional technique, instrument, has reduced the cost of whole system.
Description of drawings
A kind of fluorescent plastic fiber temperature sensing system of Fig. 1 synoptic diagram
The luminous synoptic diagram of Fig. 2 light source activation fluorescent material
Fig. 3 light transmission synoptic diagram
Embodiment
Fluorescent plastic fiber temperature sensing system provided by the utility model as shown in Figure 1, comprise light source 1, fluorescent material 2, filter mirror 3, communication plastic optical fiber 4, photoelectric commutator 5, signal processor 6, power supply 7 and mainboard 8, wherein photoelectric commutator 5, signal processor 6 and power supply 7 are welded on the mainboard 8, and electrical property connects successively, power supply 7 is signal processor 6 power supplies, and photoelectric commutator 5 draws electric energy from signal processor 6.During implementation, also can connect simultaneously photoelectric commutator 5 and signal processor 6 by power supply 7.
During this fluorescent plastic fiber temperature sensing system work, fluorescent material 2 is attached to intelligent grid temperature monitoring position, along with monitoring location heats up because of the large function of current, fluorescent material 2 heat conduction also heat up, self attributes is (such as decay, life-span etc.) change, at this moment, the illumination of light source 1 emission is mapped in the fluorescent material 2, fluorescent material 2 stimulated emission light, after filtration light microscopic 3 effects of the light of the light of light source 1 emission and fluorescent material 2 emissions, the light of light source 1 emission is filtered, and the light of fluorescent material 2 emissions is coupled in the communication plastic optical fiber 4 by optical filtering 3, and be transferred to photoelectric commutator 5 by total reflection in communication in the plastic optical fiber 4, photoelectric commutator 5 converts light signal to electric signal, and is transferred in the signal processor 6, signal processor 6 is by the Treatment Analysis electric signal, the attribute change of contrast fluorescent material 2 is inferred needed temperature value, judges intelligent grid intensification hidden danger situation.Power supply 7 is the whole system power supply.
The design of optical filtering 3 is in order to reduce the workload of subsequent device in this fluorescent plastic fiber temperature sensing system.Such as Fig. 2, shown in Figure 3, fluorescent material 2 comprises fluorescent powder 21 and is wrapped in the reflection horizon 22 of fluorescent powder 21 peripheries, the light 10 of light source 1 emission is injected fluorescent material 2 incident ends, part is absorbed by fluorescent powder 21, fluorescent powder 21 stimulated emission light 20, light 20 wavelength are longer than light 10, the light that the exit end of fluorescent material 2 penetrates is the light 10 of light source 1 emission and the mixed light beam of the light 20 that fluorescent powder 21 is launched, light microscopic 3 after filtration, the light 10 of light source 1 emission is filtered, and only has the light 20 of fluorescent powder 21 emissions to be coupled in the communication plastic optical fiber 4 by optical filtering 3.
During implementation, communication plastic optical fiber 4 can connect photoelectric commutator 5 by plastic fiber interface.For example photoelectric commutator 5 is built in plastic fiber interface, the plastic optical fiber 4 of then communicating by letter can directly insert photoelectric commutator 5 by plastic fiber interface.The interface that plastic fiber interface can be selected OptoLock connectorless system or match with the connector of SMI type or LC type or SC type or SC-RJ type.Communication plastic optical fiber 4 can be selected SI type or GI plastic optical fiber.
In the present embodiment, fluorescent material 2 comprises fluorescent powder 21 and reflection horizon 22, and fluorescent powder 21 provides the light signal of measuring intelligent grid temperature monitoring position through photoluminescence, the light reflection that reflection horizon 22 will be transmitted into critical surface returns fluorescent powder 21, has avoided the loss of light.For guaranteeing the stability of fluorescent material 2, the two ends of fluorescent powder 21 can adopt jelly to condense, or with fluorescent powder 21 and glue condensation by mixing; Fluorescent material 2 also can adopt core to add the plastic optical fiber of fluorescer in addition, and namely can change attribute by fluorescence heat conduction provides the light signal of measuring temperature, can pass through the plastic optical fiber propagating optical signal again.
The beneficial effects of the utility model are:
Fluorescent plastic fiber temperature sensing system provided by the utility model utilizes the fluorescent material temperature sensor, and utilizes the plastic optical fiber signal transmission.Fluorescent material is very responsive to temperature variation, its characteristic changes along with the variation of temperature, and the plastic optical fiber bandwidth, transfer rate is fast, and be not subjected to electromagnetic interference influence, the data precision is high, both combinations, improved real-time, the accuracy of fluorescent plastic fiber temperature sensing system, and the transmission meeting of not worrying light signal exerts an influence to the electric signal of intelligent grid.Simultaneously, plastic optical fiber is cheap, installation continues and need not professional technique, instrument, has reduced the cost of whole system.
Above content is the further description of the present invention being done in conjunction with concrete optimal technical scheme, can not assert that implementation of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (4)
1. fluorescent plastic fiber temperature sensing system, it is characterized in that, comprise light source, fluorescent material, optical filtering, communication plastic optical fiber, photoelectric commutator, signal processor and power supply, described light source is launched light beam to fluorescent material, described fluorescent material stimulated luminescence, described fluorescent material connects optical filtering, and described optical filtering connects photoelectric commutator by the communication plastic optical fiber, described photoelectric commutator electrical property connects signal processor, and described signal processor connects power supply.
2. a fluorescent plastic fiber temperature sensing system as claimed in claim 1 is characterized in that described fluorescent plastic fiber temperature sensing system also comprises a mainboard, and described photoelectric commutator, signal processor and power supply are welded on the mainboard.
3. a fluorescent plastic fiber temperature sensing system as claimed in claim 1 is characterized in that described communication plastic optical fiber is SI type or GI plastic optical fiber.
4. fluorescent plastic fiber temperature sensing system as claimed in claim 1, it is characterized in that, described communication plastic optical fiber connects photoelectric commutator by plastic fiber interface, described photoelectric commutator is built in plastic fiber interface, and described plastic fiber interface is OptoLock connectorless system or the interface that matches with the connector of SMI type or LC type or SC type or SC-RJ type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320213823.3U CN203259269U (en) | 2013-04-25 | 2013-04-25 | Florescent plastic optical fiber temperature sensing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320213823.3U CN203259269U (en) | 2013-04-25 | 2013-04-25 | Florescent plastic optical fiber temperature sensing system |
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| CN203259269U true CN203259269U (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320213823.3U Expired - Fee Related CN203259269U (en) | 2013-04-25 | 2013-04-25 | Florescent plastic optical fiber temperature sensing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404218A (en) * | 2016-12-24 | 2017-02-15 | 福州华光天锐光电科技有限公司 | Protective cover for fluorescence optical fiber temperature sensor |
| CN111238661A (en) * | 2020-03-17 | 2020-06-05 | 北京科易达知识产权服务有限公司 | Non-contact temperature measuring method and device based on fluorescent afterglow |
-
2013
- 2013-04-25 CN CN201320213823.3U patent/CN203259269U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404218A (en) * | 2016-12-24 | 2017-02-15 | 福州华光天锐光电科技有限公司 | Protective cover for fluorescence optical fiber temperature sensor |
| CN111238661A (en) * | 2020-03-17 | 2020-06-05 | 北京科易达知识产权服务有限公司 | Non-contact temperature measuring method and device based on fluorescent afterglow |
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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: 20131030 Termination date: 20170425 |
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| CF01 | Termination of patent right due to non-payment of annual fee |