CN206420564U - A kind of intensity of illumination measuring system - Google Patents
A kind of intensity of illumination measuring system Download PDFInfo
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- CN206420564U CN206420564U CN201621255803.2U CN201621255803U CN206420564U CN 206420564 U CN206420564 U CN 206420564U CN 201621255803 U CN201621255803 U CN 201621255803U CN 206420564 U CN206420564 U CN 206420564U
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Abstract
The utility model provides a kind of intensity of illumination measuring system, based on fiber-optic grating sensor, realize the method and apparatus that intensity of illumination is measured with reference to solar panel and stationary magnetic field, with solve existing illumination photometer intensity of illumination measuring method needing that actively powered, electromagnetism interference is poor, signal remote transmission is unstable, data transmission capacity it is limited in terms of problem encountered.
Description
Technical field
The utility model is related to intensity of illumination fields of measurement, more particularly, to a kind of intensity of illumination measuring system.
Background technology
At present, for the measuring method of illumination size, typically measured with illumination photometer.Illumination photometer can measure the strong of different wave length
Degree can provide accurate measurement result (such as to the measurement of visible light wave range and ultra-violet bands) to people.Illumination photometer generally by
Selenium cell or silicon photocell and microampere meter composition, are mainly widely used in scientific research, production, military project, electronics, light textile, shadow at present
Depending on, build, the professional domain such as traffic and health care and health and epidemic prevention.The use of illumination photometer is limited by several factors：
Environment temperature has an impact to the measurement result of illumination photometer, and environment temperature when environment temperature when particularly surveying is with demarcation is differed
In the case of larger winter or extremely hot summer such as cold, influence more notable.In illumination photometer, photocell is not only, with
The external circuit that photocell connects, gauge outfit resistance etc., change with temperature；Humidity control degree meter also has an impact；Receiver is easy
Aging, because receiver aging can directly influence the measuring accuracy of illumination photometer, shortens the service life of illumination photometer.
Although traditional illumination photometer can reach higher measurement accuracy, its in complicated measuring environment easily by
The influence of electromagnetic interference, the factor such as actively powered, signal remote transmission is unstable, data transmission capacity is limited, or disliked
The infringement of bad environment, reliability and security are poor.Fiber Bragg grating sensor has electromagnetism interference, supplied without active
It is electric, corrosion-resistant, be easy to carry out the advantage that the conditional electronic formula sensor such as distributed measurement does not possess, additionally with sensitivity
Height, wide dynamic range, reliability height, low cost, small volume, the series of advantages such as intelligence structure can be embedded to, be especially suitable for application
In the adverse circumstances such as high temperature, high-intensity magnetic field.Therefore, the intensity of illumination measuring method based on fiber grating sensing technology, Neng Gouyou
The weak point for making up illumination photometer measuring method of effect.
What Fiber Bragg Grating FBG with its flexible and changeable design feature, was well stablized as a kind of new optical fibre device
Selecting frequency characteristic has obtained very big concern and has obtained continuous progress.Fiber Bragg Grating FBG is in light using modes such as illumination, etchings
The index distribution formed in fibre.Light is coupled when being transmitted in the optical fiber with this index distribution, it is achieved thereby that
The phenomenon such as reflection and loss occurs when transmitting in a fiber for control light.Using this characteristic, Fiber Bragg Grating FBG is in optical information
The fields such as processing, fiber optic communication and Fibre Optical Sensor have obtained great development and application.
Fiber-optic grating sensor also has its special advantage in addition to many merits with ordinary optic fibre sensor.By
Small volume in fiber grating, it is anticorrosive, anti-interference, distributed measurement can be carried out and can be as independent Fibre Optical Sensor member
The advantages of part is monitored to testee makes it in sensory field extensive use.Its maximum advantage is that its wavelength modulation is passed
Feel mechanism, this sensor mechanism makes its detectivity not changed by light source intensity, detector aging, junction loss and fibre-optical bending
Etc. the influence of factor, and multiple fiber gratings progress distributed measurements can be concatenated in same optical fiber.
Utility model content
The utility model is overcomes above mentioned problem or solves the above problems that there is provided a kind of survey of intensity of illumination at least in part
Amount system.
According to one side of the present utility model there is provided a kind of intensity of illumination measuring system, including：
Intensity of illumination harvester and intensity of illumination computing device：
The intensity of illumination harvester includes solar panel, rod-shaped conductor and fiber Bragg grating strain sensor；
The intensity of illumination computing device, is connected with the intensity of illumination harvester；
Wherein, the solar panel, both positive and negative polarity is connected with the rod-shaped conductor two ends respectively；
The rod-shaped conductor, to be placed on non-parallel to stationary magnetic field line direction mode in the stationary magnetic field；
The fiber Bragg grating strain sensor, calculates with the rod-shaped conductor middle part and the intensity of illumination fill respectively
Put connected, with being provided with insulator in the middle of the rod-shaped conductor.
The application proposes a kind of intensity of illumination measuring system, based on fiber-optic grating sensor, with reference to solar panel and
The method and apparatus that intensity of illumination measurement is realized in stationary magnetic field, it is active in need to solve existing illumination photometer intensity of illumination measuring method
Power supply, electromagnetism interference is poor, signal remote transmission is unstable, data transmission capacity be limited in terms of problem encountered.
Brief description of the drawings
Fig. 1 is according to a kind of structural representation of intensity of illumination measuring system of the utility model embodiment.
Embodiment
With reference to the accompanying drawings and examples, embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not limited to scope of the present utility model.
In Fig. 1, in one specific embodiment of the utility model, a kind of intensity of illumination measuring system structural representation is shown.
On the whole, including：Intensity of illumination harvester A1, is connected with intensity of illumination computing device A2, including solar panel
A11, stationary magnetic field A12, rod-shaped conductor A13 and fiber Bragg grating strain sensor A14；The solar panel both positive and negative polarity difference
It is connected with the rod-shaped conductor two ends, for receiving light to be measured, the light-metering to be checked is converted into electric energy；The rod-shaped conductor
To be placed on non-parallel to stationary magnetic field line direction mode in the stationary magnetic field, for being produced under being acted in the stationary magnetic field
Deformation；The fiber Bragg grating strain sensor respectively at the rod-shaped conductor middle part and the intensity of illumination computing device
It is connected, provided with insulator A15 in the middle of the fiber Bragg grating strain sensor and the rod-shaped conductor, for by the rod-shaped conductor
Deformation quantity signal is converted into spectral signal；Intensity of illumination computing device A2, is connected with intensity of illumination harvester, for receiving light
The spectral signal sent according to intensity collection device, is calculated based on the spectral signal and obtains smooth intensity of illumination to be measured.
A kind of one specific embodiment of the utility model, intensity of illumination measuring system, described device utilizes solar cell
Plate receives light to be measured, with reference to stationary magnetic field and the cantilever beam structure of fiber Bragg grating strain sensor, has collectively constituted illumination
The measurement apparatus of intensity.Sensing part using solar panel as light, stationary magnetic field, cantilever beam structure are cores,
The fiber Bragg grating strain sensor being attached on cantilever is sensing element of the present utility model.Floated by monitoring optic fiber grating wavelength
Move, the stress change of cantilever beam free end rod-shaped conductor can be learnt, the change that solar panel produces electric current is further obtained,
It can thus be concluded that to the variable quantity of intensity of illumination, will be dexterously converted into the measurement of intensity of illumination and optic fiber grating wavelength is drifted about
Measurement.
One specific embodiment of the utility model, a kind of intensity of illumination measuring system, as shown in figure 1, the intensity of illumination
Computing device A2 includes local side light source A21, coupler A22, demodulation module A23 and processing module A24, described：Local side light source A21
It is connected by coupler A22, optical-fibre channel with fiber Bragg grating strain sensor A14, for narrow-band spectrum to be sent into optical fiber light
Grid strain transducer A14；Demodulation module A23 is connected by coupler A22, optical-fibre channel with fiber Bragg grating strain sensor A14,
For receiving spectral signal that fiber Bragg grating strain sensor A14 sends and being converted into data signal；Processing module A24 and solution
Mode transfer block A23 is connected, for receiving the data signal, is calculated using the data signal and obtains smooth intensity of illumination to be measured.
A kind of one specific embodiment of the utility model, intensity of illumination measuring system, the optical-fibre channel is used to complete light
According to the transmission of data between intensity collection device and intensity of illumination computing device.Related data transmission is by the narrow band light letter of local side
Number transmitted by optical-fibre channel to fiber-optic grating sensor, or the monitoring number that above-mentioned fiber grating intensity of illumination sensor is produced
Transmitted according to by optical-fibre channel to demodulation module.
A kind of one specific embodiment of the utility model, intensity of illumination measuring system, the demodulation module produces arrowband and swept
Frequency light (i.e. the narrow band lights of frequency size consecutive variations) is simultaneously launched by optical-fibre channel at fiber-optic grating sensor.Work as sweep light
It will reflect, be reflected back toward so as to may detect at (FBG) demodulator when wavelength is matched with the centre wavelength of fiber-optic grating sensor
Come luminous power, and and then (FBG) demodulator by the optical signal demodulation received into Wavelength-encoding data signal.
One specific embodiment of the utility model, a kind of intensity of illumination measuring system, the processing module by modeling and
Data processing, the real-time change of the strain value of monitoring point is obtained from the reflection wavelength of the fiber-optic grating sensor received,
And and then reflect to cantilever beam free end stress change, determine solar panel produce electric current change, so as to obtain quilt
Survey the real-time change of intensity of illumination.
One specific embodiment of the utility model, a kind of intensity of illumination measuring system, as shown in figure 1, also including：Display dress
A3 is put, is connected with processing module A24, for receiving and showing the smooth intensity of illumination to be measured.At data processing module A24
The display for being shown in local side in real time in survey illumination intensity information after reason, is that Observable shines strong in light-metering from local side display
Spend size.
One specific embodiment of the utility model, a kind of intensity of illumination measuring system, the stationary magnetic field is by two pieces of flat boards
It is placed in parallel composition.
One specific embodiment of the utility model, a kind of intensity of illumination measuring system, the stationary magnetic field is constant parallel
Magnetic field.
One specific embodiment of the utility model, a kind of intensity of illumination measuring system, the rod-shaped conductor can be bar-shaped
Wire cluster.
One specific embodiment of the utility model, a kind of intensity of illumination measuring system, the rod-shaped conductor is with perpendicular to perseverance
Fixed-field line direction mode is placed in the stationary magnetic field.
One specific embodiment of the utility model, a kind of intensity of illumination measuring system, the fiber Bragg grating strain sensor
It is fixed on the cantilever being fixedly connected vertical with the rod-shaped conductor.
A kind of one specific embodiment of the utility model, intensity of illumination measuring system, the intensity of illumination harvester leads to
Optical-fibre channel is crossed with intensity of illumination computing device to be connected.
A kind of one specific embodiment of the utility model, intensity of illumination measuring system, the pipeline passway is used to complete light
The transmission of data between fiber grating sensor and local side.Related data transmission is that the narrowband optical signal of local side is passed through into optical-fibre channel
Transmit to fiber-optic grating sensor, or the Monitoring Data that above-mentioned fiber grating intensity of illumination sensor is produced passes through optical-fibre channel
Transmit to local side demodulation module.
One specific embodiment of the utility model, a kind of intensity of illumination measuring system, the optical-fibre channel can be by OPGW
Optical cable or OPPC optical cables are constituted.
A kind of one specific embodiment of the utility model, workflow of intensity of illumination measuring system is as follows：By local side light
The narrow-band spectrum of source transmitting, the optical fiber transport channel (OPGW or OPPC optical cables) through light data transport module is transmitted to the light of distal end
According to the fiber-optic grating sensor of intensity collection device.
Fiber-optic grating sensor in intensity of illumination harvester, the intensity of illumination data gathered with reference to solar panel
Information, strain center wavelength information is changed into by illumination intensity information, and the spectrum matched with its centre wavelength is reflected back through FBG,
The spectrum being reflected back, which is carried, is surveying the relevant information of intensity of illumination.
Distal end collection intensity of illumination data message, by data transmission module optical fiber transport channel (OPGW or
OPPC optical cables) demodulation module of local side is transferred to, demodulated through FBG (FBG) demodulators, by optical signal demodulation into the numeral of Wavelength-encoding
Signal.
Data signal after demodulation, through data line transfer to data processing module (server), server is to above-mentioned processing
Signal enter the extraction and processing of row information, obtain fiber-optic grating sensor strain wavelength, and public according to existing linear relationship
Formula, calculates and is surveying real-time lighting strength information.Far-end server is connected with display, and by the Real-Time Optical calculated
Shown according to strength information in display.
In the data handling procedure of digital signal processing module, fiber-optic grating sensor strain spectral information is obtained first, according to
Linear relationship calculates illumination intensity information, in real time display.
With reference to Fig. 1, one specific embodiment of the utility model, a kind of workflow of intensity of illumination measuring system is as follows：
Intensity of illumination harvester, solar panel is directly contacted with light-metering to be checked, as the sensing element of light, simultaneously
Electric energy is converted light energy into, is supplied as the power supply of whole circuit.Because intensity of illumination changes, solar panel it is defeated
Corresponding change can also be occurred by going out electric current.Electrical conductor is acted on by magnetic field between two magnet, and magnetic force drives cantilever beam free end
Deform upon.Due under cantilever beam structure, the centre wavelength drift value of fiber grating and cantilever beam free end stress are into preferable
Linear relationship, therefore monitor the center wavelength shift amount of fiber grating, further can obtain intensity of illumination.
Optical-fibre channel is that the spectrum for sending local side light source is transferred to distal end through optical fiber transport channel (OPGW or OPPC)
FBG and the light letter that the FBG corresponding spectral informations reflected the strain information that actual measurement intensity of illumination is produced are transferred back to local side
Cease demodulation module.Fiber-optic grating sensor is serially connected through coupler with optical fiber transport channel.
Local side light source and demodulation module：The transmitting of optical signal and receiving module include local side light source and optical signal demodulation mould
Block.Local side light source launches narrow-band spectrum, and reaches distal end strain transducer through transmission channel, and strain transducer is reflected back accordingly
Strain wavelength to demodulation module, demodulation module detects the optical signal power being reflected back, and by the optical signal demodulation received
Into the data signal of Wavelength-encoding.
Data processing module：After the solution of the demodulated module of spectral signal is tone coded, demodulating data is transferred to server, service
Device is analyzed the wavelength data of acquisition and calculates corresponding real-time lighting intensity.In addition, above-mentioned after processing and display
Data will not be abandoned, but be preserved in default position, so that later reference is analyzed.
Local side display：Local side display is used for after data processing module is handled, and what is obtained is surveying illumination intensity information
It has been shown that, makes information gathering and data comparison more intuitively show in real time, and the real-time amendment of value can be measured in front end, side
Convenient to operate, it is simple and easy to do.
This intensity of illumination monitoring device based on fiber-optic grating sensor, the light for cleverly receiving solar panel
According to strength information, wire cluster stress in magnetic field is converted to, causes the cantilever beam deformation equipped with FBG sensor, so as to obtain corresponding
Data message.
Finally, the present processes are only preferably embodiment, are not intended to limit protection domain of the present utility model.
It is all it is of the present utility model spirit and principle within, any modification, equivalent substitution and improvements made etc. should be included in this reality
Within new protection domain.
Claims (10)
1. a kind of intensity of illumination measuring system, it is characterised in that including：Intensity of illumination harvester and intensity of illumination calculate dress
Put：
The intensity of illumination harvester includes solar panel, rod-shaped conductor and fiber Bragg grating strain sensor；
The intensity of illumination computing device, is connected with the intensity of illumination harvester；
Wherein, the solar panel, both positive and negative polarity is connected with the rod-shaped conductor two ends respectively；
The rod-shaped conductor, to be placed on non-parallel to stationary magnetic field line direction mode in the stationary magnetic field；
The fiber Bragg grating strain sensor, respectively with the rod-shaped conductor middle part and the intensity of illumination computing device phase
Even, with being provided with insulator in the middle of the rod-shaped conductor.
2. the system as claimed in claim 1, it is characterised in that the intensity of illumination computing device includes local side light source, coupling
Device, demodulation module and processing module：
The local side light source is connected by coupler, optical-fibre channel with fiber Bragg grating strain sensor；
The demodulation module is connected by coupler, optical-fibre channel with fiber Bragg grating strain sensor；
Processing module is connected with demodulation module.
3. system as claimed in claim 2, it is characterised in that also include：Display device, is connected with processing module.
4. the system as claimed in claim 1, it is characterised in that placed and constituted by two pieces of platen parallels in the stationary magnetic field.
5. the system as claimed in claim 1, it is characterised in that the stationary magnetic field is constant parallel magnetic field.
6. the system as claimed in claim 1, it is characterised in that the rod-shaped conductor can be bar-shaped wire cluster.
7. the system as claimed in claim 1, it is characterised in that the rod-shaped conductor is with perpendicular to stationary magnetic field line direction mode
It is placed in the stationary magnetic field.
8. system as claimed in claim 6, it is characterised in that the fiber Bragg grating strain sensor be fixed on it is described bar-shaped
On the cantilever that conductor is vertically fixedly connected.
9. the system as claimed in claim 1, it is characterised in that the intensity of illumination harvester passes through optical-fibre channel and illumination
Strength co-mputation device is connected.
10. system as claimed in claim 9, it is characterised in that the optical-fibre channel can be by OPGW optical cables or OPPC optical cables
Constitute.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621255803.2U CN206420564U (en) | 2016-11-16 | 2016-11-16 | A kind of intensity of illumination measuring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621255803.2U CN206420564U (en) | 2016-11-16 | 2016-11-16 | A kind of intensity of illumination measuring system |
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| CN206420564U true CN206420564U (en) | 2017-08-18 |
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| CN201621255803.2U Withdrawn - After Issue CN206420564U (en) | 2016-11-16 | 2016-11-16 | A kind of intensity of illumination measuring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063450A (en) * | 2016-11-16 | 2017-08-18 | 国家电网公司 | A kind of intensity of illumination measuring system |
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- 2016-11-16 CN CN201621255803.2U patent/CN206420564U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063450A (en) * | 2016-11-16 | 2017-08-18 | 国家电网公司 | A kind of intensity of illumination measuring system |
| CN107063450B (en) * | 2016-11-16 | 2018-09-18 | 国家电网公司 | A kind of intensity of illumination measuring system |
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