CN109975888A - A kind of adjustable target optical spectrum characteristic measuring system of band combination band width configuration - Google Patents
A kind of adjustable target optical spectrum characteristic measuring system of band combination band width configuration Download PDFInfo
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- CN109975888A CN109975888A CN201910260278.5A CN201910260278A CN109975888A CN 109975888 A CN109975888 A CN 109975888A CN 201910260278 A CN201910260278 A CN 201910260278A CN 109975888 A CN109975888 A CN 109975888A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 57
- 238000001228 spectrum Methods 0.000 title claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 230000003321 amplification Effects 0.000 claims abstract description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 2
- 230000003595 spectral effect Effects 0.000 abstract description 10
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 230000006870 function Effects 0.000 description 4
- 102100027340 Slit homolog 2 protein Human genes 0.000 description 3
- 101710133576 Slit homolog 2 protein Proteins 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
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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
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
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- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
The invention discloses a kind of adjustable target optical spectrum characteristic measuring systems of band combination band width configuration, include preposition optical system, analog signal processing module, data acquisition module；Input optical signal, through the optical filter on optical filter wheel, the optical signal after focusing is fallen on photodetector photosurface optical signal after collimated collimated, through photoelectric conversion, is converted into analog electrical signal；Analog signal processing module is by the analog electrical signal from photodetector through treatment processes such as amplification filtering, it reduces signal noise and improves system signal noise ratio, treated, and analog electrical signal is sent to data acquisition module, and data acquisition module shows after converting analog signals into digital signal, stores or upload in real time computer.The present invention carries out special construction design so that disposing optical filter therein replaceable to optical filter wheel；Measurement wave band and the adjustable spectral measurement of band width configuration are realized using spectrographic detection technology, that has widened this spectral measurement system significantly there should be range.
Description
Technical field
The present invention relates to remote sensing geology resource exploration technical field more particularly to a kind of band combination band width configuration are adjustable
Target optical spectrum characteristic measuring system.
Background technique
Remote sensing technology is widely used in geological resource Exploration Domain.To meet the needs of remote sensing geology resource exploration, explore
Instrument and equipment is required to measure different minerals resource spectral signature.Mineral resources are many kinds of, spectral signature also each not phase
Together, the wavelength band that an equipment is capable of measuring is limited, and the wave band that the instrument with continuous spectrometry function can measure is opposite
It is more, but when echo signal is weaker, signal-to-noise ratio is difficult to ensure；So many occasions, are good using channel-type measuring instrument
Selection, signal-to-noise ratio are compared continuous spectrum measuring instrument and can be improved very much.But what the spectral measuring devices of general channel-type were capable of measuring
Wave band is extremely limited.Therefore, inventing a kind of band combination can according to need the channel-type spectral measuring devices of any adjustment, must
Will meet the needs of geology resource exploration field well, also can be applied to other remote sensing observations fields.
Summary of the invention
It is extremely limited the invention aims to make up the wave band that the spectral measuring devices of existing channel-type are capable of measuring
Defect, a kind of adjustable target optical spectrum characteristic measuring system of band combination band width configuration is provided.
The present invention is achieved by the following technical solutions:
A kind of adjustable target optical spectrum characteristic measuring system of band combination band width configuration, it is characterised in that: include preposition optics
System, analog signal processing module, data acquisition module；The preposition optical system includes entrance slit, acquisition incident light
Collimation lens, optical filter wheel, stepper motor and the photodetector of signal, the entrance slit, collimation lens, optical filter
Wheel, photodetector are successively set in input path, and stepper motor and optical filter wheel are sequentially connected；At the analog signal
Managing module includes pre-amplification circuit, filter circuit and programmable amplifier, realizes the filtering and amplification of analog electrical signal；The light
The signal output end of electric explorer is connect with the signal input part of analog signal processing module；The data acquisition module includes
There are MCU and the analog-to-digital conversion module connecting with MCU, caching RAM, memory SD card, display module, power module, to simulation
Electric signal converted, store and system status monitoring, power module are system power supply；The analog signal processing module
The connection of the signal input part of signal output end and analog-to-digital conversion module；The MCU and management centre computer communicate to connect；It is described
MCU is also controlled with motor drive module and is connected, and the signal output end of motor drive module is electrically connected with stepper motor.
The adjustable target optical spectrum characteristic measuring system of a kind of band combination band width configuration, it is characterised in that: described
Optical filter wheel offers several optical filter installation circular holes along edge at equal intervals, is separately installed with different-waveband difference in each circular hole
The narrow band filter component of bandwidth, narrow band filter component is replaceable, and the combination of instrument service band may be implemented and bandwidth is matched
That sets is adjustable.
The adjustable target optical spectrum characteristic measuring system of a kind of band combination band width configuration, it is characterised in that: described
Narrow band filter component is fixed in the optical filter installation circular hole of optical filter wheel with helical structure.
The adjustable target optical spectrum characteristic measuring system of a kind of band combination band width configuration, it is characterised in that: described
Power module uses replaceable lithium battery group.
Stepper motor of the invention drives optical filter wheel rotation, and optical signal is entered through different narrow band filters
It penetrates, such system can acquire the optical signal of different-waveband, and highly sensitive photodetector converts optical signals to telecommunications
It is sent to analog signal processing module after number, improves signal-to-noise ratio after the filter amplifying processing of analog signal processing module, it
After send to data acquisition module, analog electrical signal is converted, is stored, is shown and system status monitoring.
The invention has the advantages that
The present invention increases the replaceable function of optical filter, to mention on the basis of general channel-type spectral measurement system
A kind of measurement wave band and the adjustable spectral measurement system of band width configuration have been supplied, different target type unrestricted choice work can be directed to
Make wave band, there is band combination, band width configuration adjustable function, compensates for what the spectral measuring devices of general channel-type were capable of measuring
The extremely limited defect of wave band, so that the use scope of instrument is widened significantly.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is optical filter wheel structural schematic diagram.
Fig. 3 is systematic schematic diagram of the invention.
Specific embodiment
As shown in Figure 1, 2, the adjustable target optical spectrum characteristic measuring system of a kind of band combination band width configuration, includes preposition
Optical system 1, analog signal processing module 7, data acquisition module 9；The preposition optical system 1 includes entrance slit 2, adopts
Collect collimation lens 3, optical filter wheel 4, stepper motor 6 and the photodetector 8 of incident optical signal, the entrance slit 2, collimation
Lens 3, optical filter wheel 4, photodetector 8 are successively set in input path, and stepper motor 6 and optical filter wheel 4 are sequentially connected；
The analog signal processing module 7 includes pre-amplification circuit, filter circuit and programmable amplifier, realizes analog electrical signal
Filtering and amplification；The signal output end of the photodetector 8 is connect with the signal input part of analog signal processing module 7；Institute
The data acquisition module 9 stated includes MCU13 and the analog-to-digital conversion module connecting with MCU13 14, caching RAM15, memory
SD card 12, display module 11, power module 10 are converted analog electrical signal, are stored and system status monitoring, power supply mould
Block 10 is system power supply；The signal output end of the analog signal processing module 7 and the signal input part of analog-to-digital conversion module 14
Connection；The MCU13 and management centre computer 17 communicate to connect.
Optical filter wheel 4 offers several optical filter boxes 5 at equal intervals along edge and installs circular hole, each optical filter box installation
The narrow band filter of different-waveband different bandwidth is installed with spiral fixed form respectively, narrow band filter component can be more in circular hole
Change, may be implemented instrument service band combination and band width configuration it is adjustable.
Power module 10 uses replaceable lithium battery group.
Incident optical signal enters preposition optical system 1, collimates by entrance slit 2, collimation lens 3, by optical filter wheel
4, it converges to photodetector 8 and is converted into electric signal, send to analog signal processing module 7；Electric signal from photodetector 8
Signal-to-noise ratio is improved after the filter amplifying processing of analog signal processing module 7, is sent later to data acquisition module 9；Data
Reception, conversion and the store function of analog signal are realized in the control of MCU13 plug-in in acquisition module 9.Analog-to-digital conversion module 14
Realization converts analog signals into digital signal, and the data of acquisition are stored in memory SD card 12, and display module 11 is aobvious in real time
Show experimental state and acquisition data.End to be tested is controlled by MCU13 plug-in, by the acquisition in the memory SD card 12
Data are uploaded to management centre computer 17, can also run MCU13 plug-in and be uploaded to data are acquired in management in real time
Heart computer 17.
Claims (4)
1. a kind of adjustable target optical spectrum characteristic measuring system of band combination band width configuration, it is characterised in that: include preposition light
System, analog signal processing module, data acquisition module；The preposition optical system includes entrance slit, acquisition incidence
Collimation lens, optical filter wheel, stepper motor and the photodetector of optical signal, the entrance slit, collimation lens, optical filter
Wheel, photodetector are successively set in input path, and stepper motor and optical filter wheel are sequentially connected；At the analog signal
Managing module includes pre-amplification circuit, filter circuit and programmable amplifier, realizes the filtering and amplification of analog electrical signal；The light
The signal output end of electric explorer is connect with the signal input part of analog signal processing module；The data acquisition module includes
There are MCU and the analog-to-digital conversion module connecting with MCU, caching RAM, memory SD card, display module, power module, to simulation
Electric signal converted, store and system status monitoring, power module are system power supply；The analog signal processing module
The connection of the signal input part of signal output end and analog-to-digital conversion module；The MCU and management centre computer communicate to connect；It is described
MCU is also controlled with motor drive module and is connected, and the signal output end of motor drive module is electrically connected with stepper motor.
2. the adjustable target optical spectrum characteristic measuring system of a kind of band combination band width configuration according to claim 1, special
Sign is: the optical filter wheel offers several optical filter installation circular holes along edge at equal intervals, is separately installed in each circular hole
The narrow band filter component of different-waveband different bandwidth, narrow band filter component is replaceable, and instrument service band group may be implemented
Close and band width configuration it is adjustable.
3. the adjustable target optical spectrum characteristic measuring system of a kind of band combination band width configuration according to claim 2, special
Sign is: the narrow band filter component is fixed in the optical filter installation circular hole of optical filter wheel with helical structure.
4. the adjustable target optical spectrum characteristic measuring system of a kind of band combination band width configuration according to claim 1, special
Sign is: the power module uses replaceable lithium battery group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910260278.5A CN109975888A (en) | 2019-04-02 | 2019-04-02 | A kind of adjustable target optical spectrum characteristic measuring system of band combination band width configuration |
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| CN201910260278.5A CN109975888A (en) | 2019-04-02 | 2019-04-02 | A kind of adjustable target optical spectrum characteristic measuring system of band combination band width configuration |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111610151A (en) * | 2020-05-19 | 2020-09-01 | 南昌大学 | Mobile vehicle-mounted electromagnetic wave multi-spectrometer system and imaging method |
| CN113009458A (en) * | 2021-03-04 | 2021-06-22 | 中国科学院半导体研究所 | Compact narrow-band background light power meter and laser detection equipment comprising same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20190705 |
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