CN107063450A - A kind of intensity of illumination measuring system - Google Patents
A kind of intensity of illumination measuring system Download PDFInfo
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- CN107063450A CN107063450A CN201611034592.4A CN201611034592A CN107063450A CN 107063450 A CN107063450 A CN 107063450A CN 201611034592 A CN201611034592 A CN 201611034592A CN 107063450 A CN107063450 A CN 107063450A
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- 238000005286 illumination Methods 0.000 title claims abstract description 101
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
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- 239000013307 optical fiber Substances 0.000 claims description 22
- 230000003287 optical effect Effects 0.000 claims description 19
- 238000012545 processing Methods 0.000 claims description 18
- 230000003595 spectral effect Effects 0.000 claims description 13
- 238000001228 spectrum Methods 0.000 claims description 8
- RRVPPYNAZJRZFR-VYOBOKEXSA-N 1-oleoyl-2-palmitoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)O[C@@H](COP([O-])(=O)OCC[N+](C)(C)C)COC(=O)CCCCCCC\C=C/CCCCCCCC RRVPPYNAZJRZFR-VYOBOKEXSA-N 0.000 claims description 5
- 239000012212 insulator Substances 0.000 claims description 3
- 230000005426 magnetic field effect Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
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- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 238000005259 measurement Methods 0.000 description 14
- 230000008859 change Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
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- 238000005516 engineering process Methods 0.000 description 2
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- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/04—Optical or mechanical part supplementary adjustable parts
- G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
- G01J1/0425—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using optical fibers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/4204—Photometry, e.g. photographic exposure meter using electric radiation detectors with determination of ambient light
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- Spectroscopy & Molecular Physics (AREA)
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- Arrangements For Transmission Of Measured Signals (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The present invention 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 present invention relates 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, especially
Be actual measurement when environment temperature with demarcation when environment temperature differ it is larger as cold winter or extremely hot summer in the case of,
Influence is more notable.In illumination photometer, photocell is not only, the external circuit connected with photocell, gauge outfit resistance etc., with temperature
And change；Humidity control degree meter also has an impact；The easy aging of receiver, because receiver aging can directly influence the survey of illumination photometer
Accuracy is measured, 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.
The content of the invention
The present invention measures system to overcome above mentioned problem or solving the above problems at least in part there is provided a kind of intensity of illumination
System.
According to an aspect of the present invention 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, for receiving intensity of illumination collection
The spectral signal that device is sent, is calculated based on the spectral signal and obtains smooth intensity of illumination to be measured；
Wherein, the solar panel：Light to be measured is received, both positive and negative polarity is connected with the rod-shaped conductor two ends respectively,
The light-metering to be checked is converted into electric energy；
The rod-shaped conductor：To be placed on non-parallel to the stationary magnetic field line direction mode in the magnetic field, for
The stationary magnetic field effect is lower to produce deformation；
The fiber Bragg grating strain sensor：Calculate and fill with the rod-shaped conductor middle part and the intensity of illumination respectively
Put connected, with being provided with insulator in the middle of the rod-shaped conductor, for the rod-shaped conductor deformation quantity signal to be converted into spectrum letter
Number.
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 embodiment of the present invention.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
In Fig. 1, in a specific embodiment of the invention, a kind of intensity of illumination measuring system structural representation is shown.It is overall
For, including：Intensity of illumination harvester A1, is connected with intensity of illumination computing device A2, including solar panel A11, perseverance
Fixed-field A12, rod-shaped conductor A13 and fiber Bragg grating strain sensor A14；The solar panel both positive and negative polarity respectively with it is described
Rod-shaped conductor two ends are connected, and for receiving light to be measured, the light-metering to be checked is converted into electric energy；The rod-shaped conductor is with non-flat
Row is placed in the magnetic field in the stationary magnetic field line direction mode, for producing deformation under being acted in the stationary magnetic field；
The fiber Bragg grating strain sensor is connected respectively at the rod-shaped conductor middle part and the intensity of illumination computing device,
Insulator A15 is provided with the middle of the fiber Bragg grating strain sensor and the rod-shaped conductor, for by the rod-shaped conductor deformation
Amount signal is converted into spectral signal；Intensity of illumination computing device A2, is connected with intensity of illumination harvester, strong for receiving illumination
The spectral signal that degree harvester is sent, is calculated based on the spectral signal and obtains smooth intensity of illumination to be measured.
An a kind of specific embodiment of the invention, intensity of illumination measuring system, described device is connect using solar panel
Light to be measured is received, with reference to stationary magnetic field and the cantilever beam structure of fiber Bragg grating strain sensor, intensity of illumination has been collectively constituted
Measurement apparatus.Sensing part using solar panel as light, stationary magnetic field, cantilever beam structure are cores, are attached to
Fiber Bragg grating strain sensor on cantilever is the sensing element of the present invention.Drifted about, can learnt by monitoring optic fiber grating wavelength
The stress change of cantilever beam free end rod-shaped conductor, further obtains the change that solar panel produces electric current, it can thus be concluded that
To the variable quantity of intensity of illumination, the measurement drifted about to optic fiber grating wavelength will be dexterously converted into the measurement of intensity of illumination.
A specific embodiment of the invention, a kind of intensity of illumination measuring system, as shown in figure 1, the intensity of illumination is calculated
Device A2 includes local side light source A21, coupler A22, demodulation module A23 and processing module A24, described：Local side light source A21 passes through
Coupler A22, optical-fibre channel are connected A14 with fiber Bragg grating strain sensor, should for narrow-band spectrum to be sent into fiber grating
Become sensors A 14；Demodulation module A23 is connected by coupler A22, optical-fibre channel with fiber Bragg grating strain sensor A14, is used for
Receive the spectral signals that send of fiber Bragg grating strain sensor A14 and be 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.
An a kind of specific embodiment of the invention, intensity of illumination measuring system, the optical-fibre channel is strong for completing illumination
Spend the transmission of data between harvester and intensity of illumination computing device.Related data transmission is to lead to the narrowband optical signal of local side
Optical-fibre channel is crossed to transmit to fiber-optic grating sensor, or the Monitoring Data that above-mentioned fiber grating intensity of illumination sensor is produced is led to
Optical-fibre channel is crossed to transmit to demodulation module.
An a kind of specific embodiment of the invention, intensity of illumination measuring system, the demodulation module produces narrow-band frequency-sweeping light
(i.e. the narrow band lights of frequency size consecutive variations) and launched by optical-fibre channel at fiber-optic grating sensor.When frequency sweep optical wavelength
It will be reflected when being matched with the centre wavelength of fiber-optic grating sensor, so as to may detect what is be reflected back at (FBG) demodulator
Luminous power, and and then (FBG) demodulator by the optical signal demodulation received into Wavelength-encoding data signal.
A specific embodiment of the invention, a kind of intensity of illumination measuring system, the processing module is 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, is gone forward side by side
And the change reflected to cantilever beam free end stress, determine that solar panel produces the change of electric current, so as to obtain by light-metering
According to the real-time change of intensity.
A specific embodiment of the invention, a kind of intensity of illumination measuring system, as shown in figure 1, also including：Display device
A3, is connected with processing module A24, for receiving and showing the smooth intensity of illumination to be measured.Through data processing module A24 processing
The display for being shown in local side in real time in survey illumination intensity information afterwards, is that Observable is surveying intensity of illumination from local side display
Size.
A specific embodiment of the invention, a kind of intensity of illumination measuring system, the stationary magnetic field is by two pieces of platen parallels
Place and constitute.
A specific embodiment of the invention, a kind of intensity of illumination measuring system, the stationary magnetic field is constant parallel magnetic field.
A specific embodiment of the invention, a kind of intensity of illumination measuring system, the rod-shaped conductor can be bar-shaped wire
Cluster.
A specific embodiment of the invention, a kind of intensity of illumination measuring system, the rod-shaped conductor is with perpendicular to the perseverance
Fixed-field line direction mode is placed in the magnetic field.
A specific embodiment of the invention, a kind of intensity of illumination measuring system, the fiber Bragg grating strain sensor and institute
Rod-shaped conductor is stated vertically to be fixedly connected.
An a kind of specific embodiment of the invention, intensity of illumination measuring system, the intensity of illumination harvester passes through light
Fine passage is connected with intensity of illumination computing device.
An a kind of specific embodiment of the invention, intensity of illumination measuring system, the pipeline passway is used to complete optical fiber light
The transmission of data between gate sensor and local side.Related data transmission is to transmit the narrowband optical signal of local side by optical-fibre channel
To fiber-optic grating sensor, or the Monitoring Data that above-mentioned fiber grating intensity of illumination sensor is produced is transmitted by optical-fibre channel
To local side demodulation module.
A specific embodiment of the invention, a kind of intensity of illumination measuring system, the optical-fibre channel can be by OPGW optical cables
Or OPPC optical cables are constituted.
An a kind of specific embodiment of the invention, workflow of intensity of illumination measuring system is as follows：Sent out by local side light source
The narrow-band spectrum penetrated, the illumination that the optical fiber transport channel (OPGW or OPPC optical cables) through light data transport module is transmitted to distal end is strong
Spend the fiber-optic grating sensor of harvester.
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, an a kind of specific embodiment of the invention, 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 the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc. should be included in the protection of the present invention
Within the scope of.
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, for receiving intensity of illumination harvester
The spectral signal of transmission, is calculated based on the spectral signal and obtains smooth intensity of illumination to be measured；
Wherein, the solar panel：Light to be measured is received, both positive and negative polarity is connected with the rod-shaped conductor two ends respectively, by institute
State light-metering to be checked and be converted to electric energy；
The rod-shaped conductor：To be placed on non-parallel to the stationary magnetic field line direction mode in the magnetic field, for described
Stationary magnetic field effect is lower to produce deformation；
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, for the rod-shaped conductor deformation quantity signal to be converted into spectral signal.
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, for narrow-band spectrum to be sent out
Give fiber Bragg grating strain sensor；
The demodulation module is connected by coupler, optical-fibre channel with fiber Bragg grating strain sensor, for receiving fiber grating
Spectral signal that strain transducer is sent simultaneously is converted into data signal；
Processing module is connected with demodulation module, for receiving the data signal, is calculated using the data signal and obtains to be measured
Measure light intensity of illumination.
3. system as claimed in claim 2, it is characterised in that also include：Display device, is connected with processing module, for connecing
Receive and show the smooth intensity of illumination to be measured.
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 the stationary magnetic field line direction
Mode is placed in the magnetic field.
8. system as claimed in claim 6, it is characterised in that the fiber Bragg grating strain sensor hangs down with the rod-shaped conductor
Directly it is 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 8, it is characterised in that the optical-fibre channel can be by OPGW optical cables or OPPC optical cables
Constitute.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004361109A (en) * | 2003-06-02 | 2004-12-24 | Fujitsu Ltd | Optical power meter |
| CN102252752A (en) * | 2011-05-04 | 2011-11-23 | 清华大学 | Portable universal serial bus (USB) optical power meter |
| CN202511882U (en) * | 2011-01-27 | 2012-10-31 | 岚雅光学股份有限公司 | Optical characteristic measuring system |
| CN205562036U (en) * | 2016-04-13 | 2016-09-07 | 国家电网公司 | Illumination intensity measuring device based on fiber bragg grating sensor technique |
| CN206420564U (en) * | 2016-11-16 | 2017-08-18 | 国家电网公司 | A kind of intensity of illumination measuring system |
-
2016
- 2016-11-16 CN CN201611034592.4A patent/CN107063450B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004361109A (en) * | 2003-06-02 | 2004-12-24 | Fujitsu Ltd | Optical power meter |
| CN202511882U (en) * | 2011-01-27 | 2012-10-31 | 岚雅光学股份有限公司 | Optical characteristic measuring system |
| CN102252752A (en) * | 2011-05-04 | 2011-11-23 | 清华大学 | Portable universal serial bus (USB) optical power meter |
| CN205562036U (en) * | 2016-04-13 | 2016-09-07 | 国家电网公司 | Illumination intensity measuring device based on fiber bragg grating sensor technique |
| CN206420564U (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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