CN108734946A - A kind of novel switched control box - Google Patents
A kind of novel switched control box Download PDFInfo
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- CN108734946A CN108734946A CN201810393125.3A CN201810393125A CN108734946A CN 108734946 A CN108734946 A CN 108734946A CN 201810393125 A CN201810393125 A CN 201810393125A CN 108734946 A CN108734946 A CN 108734946A
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- electric field
- integrated waveguide
- light
- light source
- crystal module
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/06—Non-electrical signal transmission systems, e.g. optical systems through light guides, e.g. optical fibres
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- General Physics & Mathematics (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The invention discloses a kind of novel switched control box, including sequentially connected operation switch module, integrated waveguide induction crystal module and target switch module, electric field and light source are applied on integrated waveguide induction crystal module；Electric field trigger element and light source activation unit are connected in operation switch module, the opening and closing of electric field trigger element and light source activation unit are controlled by operation switch module, and then control the opening and closing of the electric field and light source that are applied on integrated waveguide induction crystal module respectively；Integrated waveguide incudes crystal module, is used for the variation of induction field intensity, after the incident light that light source is sent out incudes crystal module by integrated waveguide, emergent light is changed into the optical signal controlled by electric field strength；For detecting the optical signal for incuding emergent light after crystal module by integrated waveguide suffered electric field strength is calculated, and carry out the action of target switch in target switch module.The present invention realizes receiving terminal reliably working, strong antijamming capability in the state that high shielded is isolated.
Description
Technical field
The present invention relates to electrical control automatic field more particularly to a kind of novel switched control box.
Background technology
The existing control for electrical system switchs, due to towards complicated military environment, being easy by electromagnetic interference
Influence, it is possible to create malfunction or failure.
Using the control mode of conventional Phototube Coupling conversion, most interference can be isolated, but due to weak electricity system
The characteristics of, shielding is too strong, is easy to receive failure, or shielding is not enough, under the impact of forceful electric power, damages receiving part, still there is failure
Possibility.Action in order to ensure system is absolutely reliable, needs to take more measures.
According to electrooptic effect (pockels effects), polarised light generates electroluminescent in the electro-optic crystal under by electric field action
Birefringence, rotation angle and the electric field of the polarization direction of light change polarized light signal by Polarization Detection as linear relationship
At relevant light intensity signal, electric field strength can be obtained by detection and calculation process.Using electrooptic effect, change can be passed through
The intensity of electric field realizes the control to light intensity, using optical signal as the driving of switch, realizes reliable switch control.
Invention content
The technical problem to be solved in the present invention is that the control switch for electrical system in the prior art is easy by electricity
The defect of magnetic disturbance provides a kind of novel switched control box.
The technical solution adopted by the present invention to solve the technical problems is：
The present invention provides a kind of novel switched control box, which includes sequentially connected operation switch module, integrates
Waveguide incudes crystal module and target switch module, and electric field and light source are applied on integrated waveguide induction crystal module；Wherein：
It is connected with electric field trigger element and light source activation unit in operation switch module, electricity is controlled by operation switch module
The opening and closing of field trigger element and light source activation unit, and then control be applied on integrated waveguide induction crystal module respectively
Electric field and light source opening and closing；
Integrated waveguide incudes crystal module, is used for the variation of induction field intensity, and the incident light that light source is sent out passes through integrated
After waveguide incudes crystal module, emergent light is changed into the optical signal controlled by electric field strength；
Target switch module incudes crystal module with integrated waveguide by optical fiber and is connected, passes through integrated waveguide for detecting
The optical signal of emergent light, is calculated suffered electric field strength, and corresponding electric field strength threshold value is arranged after induction crystal module,
If being more than the threshold value, the action of target switch is carried out.
Further, light source of the invention further includes inductive head, collimation lens and the polarizer, light source by single mode optical fiber with
Integrated waveguide incudes crystal module and is connected；Light source sends out laser coupled and enters single mode optical fiber, will by collimation lens in inductive head
In laser coupled to space, linearly polarized light is become with the polarizer.
Further, integrated waveguide of the invention induction crystal module includes quarter-wave plate and BGO crystal, by rising
Linearly polarized light after inclined device splits into circularly polarized light after quarter-wave plate, and fast and slow axis is respectively parallel to BGO crystal and exists
Two induction main shafts under electric field action, after BGO crystal, polarization state is constant, but phase changes, and phase change
It is related to electric field strength.
Further, it is connected with analyzer on one end of integrated waveguide of the invention induction crystal module emergent light, passed through
Emergent light after BGO crystal, by the orthogonal equidirectional component of polarization light extraction of two beams, obtains interference light intensity by analyzer,
Emergent light is subjected to opto-electronic conversion, the variation for becoming electric signal of light intensity, obtains the variation of electric field.
Further, operation switch module of the invention is driven using alternating current 220V, is acted by forceful electric power, and it is dry to reduce electromagnetism
The influence disturbed.
The beneficial effect comprise that：The novel switched control box of the present invention, it is brilliant with the integrated waveguide of electro-optic conversion
Unit of the body as triggering control is sent light intensity signal with the channel of optical fiber in triggering using high voltage electric field as driving source
To receiving terminal, receiving terminal reliably working in the state that high shielded is isolated is realized.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 is the integrated waveguide induction crystal module structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the structure diagram of the embodiment of the present invention.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
As shown in Figure 1, the novel switched control box of the embodiment of the present invention, including sequentially connected operation switch module, collection
Incude crystal module and target switch module at waveguide, electric field and light source are applied on integrated waveguide induction crystal module；Wherein：
As shown in Fig. 2, being connected with electric field trigger element and light source activation unit in operation switch module, pass through Operation switch
Module controls the opening and closing of electric field trigger element and light source activation unit, and then controls be applied to integrated waveguide induction respectively
The opening and closing of electric field and light source on crystal module；
Integrated waveguide incudes crystal module, is used for the variation of induction field intensity, and the incident light that light source is sent out passes through integrated
After waveguide incudes crystal module, emergent light is changed into the optical signal controlled by electric field strength；
Target switch module incudes crystal module with integrated waveguide by optical fiber and is connected, passes through integrated waveguide for detecting
The optical signal of emergent light, is calculated suffered electric field strength, and corresponding electric field strength threshold value is arranged after induction crystal module,
If being more than the threshold value, the action of target switch is carried out.
Light source further includes inductive head, collimation lens and the polarizer, and light source incudes crystal by single mode optical fiber and integrated waveguide
Module is connected；Light source sends out laser coupled and enters single mode optical fiber, by collimation lens by laser coupled to space in inductive head,
Linearly polarized light is become with the polarizer.
It includes quarter-wave plate and BGO crystal that integrated waveguide, which incudes crystal module, passes through the linearly polarized light after the polarizer
Circularly polarized light is split into after quarter-wave plate, fast and slow axis is respectively parallel to two of BGO crystal under electric field action
Incude main shaft, after BGO crystal, polarization state is constant, but phase changes, and phase change is related to electric field strength.
It is connected with analyzer on one end of integrated waveguide induction crystal module emergent light, analyzing is passed through by the emergent light after BGO crystal
The orthogonal equidirectional component of polarization light extraction of two beams is obtained interference light intensity, emergent light is carried out opto-electronic conversion, light by device
The strong variation for becoming electric signal, obtains the variation of electric field.
In another specific embodiment of the present invention：
Using Pu Keersi (pockels) effect of electro-optic crystal, crystal is driven with highfield, makes the light intensity by crystal
It changes, end is controlled and received by the variation of light intensity, realizes the effect of switch motion.
Since the electric field strength of driving crystal is larger, common interference will not have an impact output, and transmit light intensity
Channel is optical fiber, realizes the physical isolation of controlled partial electric, and receiving terminal can be allowed to work in the state of high shielded,
It will not be by common interference effect.
1. integrated waveguide crystal principles structure；
As shown in Figure 1, light source, which sends out laser coupled, enters single mode optical fiber, laser coupled is arrived by collimation lens in inductive head
In space, linearly polarized light is become with the polarizer, using circularly polarized light is split into after quarter-wave plate, fast and slow axis divides
It is not parallel to two induction main shafts of the BGO crystal under electric field action, after crystal, polarization state is constant, but phase is sent out
Variation is given birth to, and related to electric field strength.With analyzer by the orthogonal equidirectional component of polarization light extraction of two beams, done
Relate to light intensity.Emergent light is subjected to opto-electronic conversion, the variation for becoming electric signal of light intensity, you can obtain the variation of electric field.
2. system structure；
As shown in Fig. 2, whole system includes 3 parts：1) Operation switch part, action triggers electric field, excitation light source；2) collect
Incude crystal block section at waveguide, the light that light source is sent out is changed into the optical signal controlled by electric field strength by induction field；3) target
Switch sections, the optical signal of first detection optical fiber conduction, further according to signal strength control targe switch motion.
3. the course of work；
Operation switch drives alternating current 220V, applies the electric field of a high intensity on integrated waveguide crystal, and light source is opened,
Light passes through crystal, and the intensity myopia of emergent light and electric field is linearly related, i.e., with no electric field when have great difference, rear end action
Part is by detecting light intensity, it may be determined that by the intensity of electric field.A threshold value is set, can be carried out when more than the threshold value
Switch motion.Since light intensity is influenced by electric field, when there is noise jamming, to the intensity effect very little of electric field, react in light intensity
It is not also influenced substantially on signal, isolation interference can be played the role of in this way, improve Reliability of Microprocessor.
The present invention is forceful electric power action, is influenced by electromagnetic interference smaller, rear end is easily disturbed in the part of Operation switch
Part and front end signal is transmitted using optical fiber, realize electrical isolation physically, stronger anti-external interference may be used
Measure, such whole system realizes that reliable anti-interference and reliable switch motion is transmitted, real at military scene complicated and changeable
The unification of many indexes is showed.
Switch is the startup that forceful electric power is controlled with light current, is usually realized in a manner of relay etc., in order to reduce malfunction,
Often various interference are filtered out with photoelectrical coupler, then relay is controlled with signal, to realize reliable and stable action.Common light
Chip impact failure, when external disturbance intensity is larger, may be allowed to work by coupling system based on various chips.
The present invention is made in triggering with high voltage electric field using the integrated waveguide crystal of electro-optic conversion as the unit of triggering control
For driving source, light intensity signal is sent to receiving terminal with the channel of optical fiber, realizes receiving terminal in the state that high shielded is isolated
Reliably working.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (5)
1. a kind of novel switched control box, which is characterized in that the control box includes sequentially connected operation switch module, integrated wave
Induction crystal module and target switch module are led, electric field and light source are applied on integrated waveguide induction crystal module；Wherein：
Electric field trigger element and light source activation unit are connected in operation switch module, controlling electric field by operation switch module touches
The opening and closing of bill member and light source activation unit, and then the electricity being applied on integrated waveguide induction crystal module is controlled respectively
The opening and closing of field and light source；
Integrated waveguide incudes crystal module, is used for the variation of induction field intensity, and the incident light that light source is sent out passes through integrated waveguide
After incuding crystal module, emergent light is changed into the optical signal controlled by electric field strength；
Target switch module incudes crystal module with integrated waveguide by optical fiber and is connected, incuded by integrated waveguide for detecting
The optical signal of emergent light after crystal module is calculated suffered electric field strength, and corresponding electric field strength threshold value is arranged, if super
The threshold value is crossed, then carries out the action of target switch.
2. novel switched control box according to claim 1, which is characterized in that light source further includes inductive head, collimation lens
And the polarizer, light source incude crystal module with integrated waveguide by single mode optical fiber and are connected；Light source sends out laser coupled and enters single-mode optics
Fibre becomes linearly polarized light by laser coupled to space by collimation lens in inductive head with the polarizer.
3. novel switched control box according to claim 2, which is characterized in that it includes four that integrated waveguide, which incudes crystal module,
/ mono- wave plate and BGO crystal split into circularly polarized light by the linearly polarized light after the polarizer after quarter-wave plate,
Fast and slow axis is respectively parallel to two induction main shafts of the BGO crystal under electric field action, and after BGO crystal, polarization state is constant,
But phase changes, and phase change is related to electric field strength.
4. novel switched control box according to claim 3, which is characterized in that integrated waveguide incudes crystal module emergent light
One end on be connected with analyzer, the orthogonal polarised light of two beams is carried by analyzer by the emergent light after BGO crystal
Equidirectional component is taken, interference light intensity is obtained, emergent light is subjected to opto-electronic conversion, the variation for becoming electric signal of light intensity,
Obtain the variation of electric field.
5. novel switched control box according to claim 1, which is characterized in that operation switch module is driven using alternating current 220V
It is dynamic, it is acted by forceful electric power, reduces the influence of electromagnetic interference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810393125.3A CN108734946B (en) | 2018-04-27 | 2018-04-27 | Novel switch control box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810393125.3A CN108734946B (en) | 2018-04-27 | 2018-04-27 | Novel switch control box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108734946A true CN108734946A (en) | 2018-11-02 |
| CN108734946B CN108734946B (en) | 2020-10-30 |
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| CN201810393125.3A Active CN108734946B (en) | 2018-04-27 | 2018-04-27 | Novel switch control box |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6417346A (en) * | 1987-07-10 | 1989-01-20 | Toshiba Corp | Vacuum switch |
| CN201369668Y (en) * | 2008-12-03 | 2009-12-23 | 天津华云自控股份有限公司 | IGBT driving circuit driven by optical fiber through isolation |
| CN203405513U (en) * | 2013-08-21 | 2014-01-22 | 中国南方电网有限责任公司超高压输电公司广州局 | Power transmission line insulator detection device based on fiber electric field sensor |
| CN203811669U (en) * | 2014-04-29 | 2014-09-03 | 国家电网公司 | Fiber voltage measurement testing apparatus based on primary electrooptic effect |
| CN104316777A (en) * | 2014-10-28 | 2015-01-28 | 西安交通大学 | Electric field strength measurement system based on Pockels effect |
-
2018
- 2018-04-27 CN CN201810393125.3A patent/CN108734946B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6417346A (en) * | 1987-07-10 | 1989-01-20 | Toshiba Corp | Vacuum switch |
| CN201369668Y (en) * | 2008-12-03 | 2009-12-23 | 天津华云自控股份有限公司 | IGBT driving circuit driven by optical fiber through isolation |
| CN203405513U (en) * | 2013-08-21 | 2014-01-22 | 中国南方电网有限责任公司超高压输电公司广州局 | Power transmission line insulator detection device based on fiber electric field sensor |
| CN203811669U (en) * | 2014-04-29 | 2014-09-03 | 国家电网公司 | Fiber voltage measurement testing apparatus based on primary electrooptic effect |
| CN104316777A (en) * | 2014-10-28 | 2015-01-28 | 西安交通大学 | Electric field strength measurement system based on Pockels effect |
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| CN108734946B (en) | 2020-10-30 |
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