CN105319542A - Magnetic type laser radar echo spectrum separator - Google Patents
Magnetic type laser radar echo spectrum separator Download PDFInfo
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- CN105319542A CN105319542A CN201510241453.8A CN201510241453A CN105319542A CN 105319542 A CN105319542 A CN 105319542A CN 201510241453 A CN201510241453 A CN 201510241453A CN 105319542 A CN105319542 A CN 105319542A
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- optical filter
- wave band
- transmission wave
- laser radar
- separator
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Abstract
The present invention discloses a magnetic type laser radar echo spectrum separator. The magnetic type laser radar echo spectrum separator comprises optical filters and a separator casing. The separator casing is provided with a plurality of optical filter guide grooves and optical filter supports, the optical filters are arranged in the optical filter guide grooves; and permanent magnet strips are arranged at the upper portion of the optical filters, the upper ends and the lower ends of the optical filters are installed on the optical filter supports through buffer springs, and magnetic force attraction devices are arranged above the optical filters. According to the invention, only one sampling module is adopted for separated spectrum signals so that the hardware cost of a sampling circuit may be greatly reduced, the separation of at most 10 spectrum signals may be performed, and the separation speed of the spectrum is fast without error; through adoption of the mechanism similar to slide projection, an electromagnetic attraction device are used, and the conversion speed is fast; and two or more than two optical filters are randomly combined to form a band-pass filter in some spectral ranges, therefore some special measurement requirement of the laser radar may be satisfied.
Description
Technical field
The invention belongs to spectral separator field, be specifically related to a kind of magnetic-type laser radar echo spectral separator.
Background technology
Along with the fast development of laser and photoelectron technology, the application of laser radar in atmospheric remote sensing gets more and more.Utilize laser acquisition directive property good; The characteristic that resolution is high, remote measurement air, accepts atmospheric scattering light and carries out analyzing and processing, can inversion reckoning air projects parameter, as temperature, speed, gas property etc.Because air also exists elastic scattering and inelastic scattering (i.e. rotary Raman and vibrating Raman) to same incident light, and the echo spectrum that these two kinds of scatterings cause is distributed on different wave bands.In addition, because the gas componant contained in air is different, inelastically scattered echo also can be caused to be distributed on different wave bands.Therefore, be measure the indispensable measure of atmospheric parameter now to the separation of different spectrum, extraction, analyzing and processing.
Current state of development
Current laser radar is in reflection pickup technology, typically use spike interference filter, FP etalon etc., but only can extract a kind of spectrum of wave band, such photodetection makes the useful information that obtains very limited, only can measure the atmospheric parameter of a certain item, effectively cannot utilize the information comprised in laser radar backscattering signal, cause current laser radar function singleness.
Now conventional spectral unmixing technology has high spectral resolution grating spectroscope, multiple-grating monochrometer etc., re-uses lens close the separation that light completes multiple spectrum by space light splitting.This technological system complex structure, expensive, require very high to mounting process.
Domesticly at present investigated by professional person the atmospheric echo spectrum separating device for laser radar that optical filter that such as use has transmittance and reflectance function forms, 5 tunnels spectral signal different separately can be exported simultaneously.Although light wave echo information can be carried out spectral separation by this technology, simultaneously 5 output optical signals export, and spatially independent separately, cause and also need this 5 road signal to carry out opto-electronic conversion respectively in subsequent step, hardware cost is huge.
In addition, optical filtering rotating disk is used also to be one of practical technique realizing spectral separation.It adopts to be loaded with multiple optical filter on a rotating disk, and dial rotation makes different optical filters be in path channels, completes the separation to a certain spectrum.But, this technology, one is that apparent size is large, be unfavorable for the portable of the laser radar of field survey purposes, two is require high to the stepping accuracy of stepper motor, if the stepping position of optical filter overlap with light path bad, easily cause the loss of echoed signal, affect the detection accuracy of laser radar.In addition, if there was a mechanical failure, corresponding optical filter situation not in place cannot carry out picking up survey, and easily make the mistake measurement.
Therefore, for the demand of laser acquisition air, research and develop a kind of cost low, practical laser radar echo spectral separator, by each spectral information all extract, significantly strengthen the detecting function of laser radar system, it is very important for expanding the range of application of laser radar.
Summary of the invention
In view of this, the object of this invention is to provide a kind of magnetic-type laser radar echo spectral separator, the above-mentioned defect of prior art can be overcome.
The object of the invention is to be achieved through the following technical solutions:
A kind of magnetic-type laser radar echo spectral separator, comprise optical filter and shell separator, be provided with several optical filter guide groove and filter supporter in described shell separator, described optical filter is arranged in optical filter guide groove; The top of described optical filter is provided with permanent type magnet strip, the upper and lower side of described optical filter is arranged in filter supporter by buffer spring, the top of described optical filter is also provided with magnetic attraction device, described separation vessel also comprises and is in control module in light path for controlling each road optical filter, described separation vessel comprises the optical filter of following wave band: transmission wave band 1,353nm ~ 354nm; Transmission wave band 2,354.3nm ~ 354.6nm; Transmission wave band 3,354.9nm ~ 355.1nm; Transmission wave band 4,405nm ~ 410nm, transmission wave band 5,384nm ~ 389nm; Transmission wave band 6,527nm ~ 533nm; Transmission wave band 7,606nm ~ 609nm; Transmission wave band 8,659nm ~ 662nm; Transmission wave band 9,530.2nm ~ 531.2nm; Transmission wave band 10,528nm ~ 529.5nm.
Further, be provided with ball between described optical filter and optical filter guide groove, described ball is fixed on ball bearing frame, and described ball bearing frame is fixed on shell separator.
Further, described buffer spring is provided with the miniature position switch for detecting optical filter position.
Further, the top of described optical filter guide groove is also provided with pilot lamp, and described pilot lamp comprises for representing that optical filter is in the green light of normal light path position and is in the red light of inoperative position.
The invention has the beneficial effects as follows: the present invention has the following advantages:
1. separated spectral signal is and exports from a light path port, and be convenient to carry out opto-electronic conversion and data sampling, Zhi Xu mono-road sampling module, greatly reduces the hardware cost of sample circuit;
2. the separation of 10 kinds of spectral signals can be carried out at most;
3. spectral separation speed is fast, error free, and be the mechanism of similar slideshow due to what adopt, use electromagnetic attracting device, slewing rate is fast;
4. can combine two or more optical filter at random, form the bandpass filter in certain spectral range, meet the demand of some special measurement of laser radar.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or can be instructed from the practice of the present invention.Target of the present invention and other advantages can be realized by instructions below and obtain.
Accompanying drawing explanation
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, wherein:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the schematic perspective view of Fig. 1.
Embodiment
Hereinafter with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail.Should be appreciated that preferred embodiment only in order to the present invention is described, instead of in order to limit the scope of the invention.
As shown in the figure, a kind of magnetic-type laser radar echo spectral separator, comprises optical filter 4 and shell separator 1, is provided with several optical filter guide grooves 2 and filter supporter 3 in described shell separator, and described optical filter is arranged in optical filter guide groove; The top of described optical filter is provided with permanent type magnet strip 5, and the upper and lower side of described optical filter is arranged in filter supporter 3 by buffer spring 6, and the top of described optical filter is also provided with magnetic attraction device 7.
In the present embodiment, be provided with ball 8 between described optical filter and optical filter guide groove, described ball is fixed on ball bearing frame, and described ball bearing frame is fixed on shell separator, and the present embodiment is convenient to optical filter moves up and down by being arranged ball 8.
In the present embodiment, described buffer spring is provided with the miniature position switch 9 for detecting optical filter position; The miniature position switch of the present embodiment is for detecting the location status of optical filter and the detecting element as motor protective circuit
In the present embodiment, the top of described optical filter guide groove is also provided with pilot lamp, and described pilot lamp comprises for representing that optical filter is in the green light of normal light path position and is in the red light of inoperative position.
In the present embodiment, described separation vessel also comprises and is in control module in light path for controlling each road optical filter.Control module, according to the steering order sent from main frame, controls one or more optical filter and is in light path, play the effect of spectral separation, and the positional information of each optical filter is passed back main control computer.
In the present embodiment, described separation vessel comprises the optical filter of following wave band: transmission wave band 1,353nm ~ 354nm; Transmission wave band 2,354.3nm ~ 354.6nm; Transmission wave band 3,354.9nm ~ 355.1nm; Transmission wave band 4,405nm ~ 410nm, transmission wave band 5,384nm ~ 389nm; Transmission wave band 6,527nm ~ 533nm; Transmission wave band 7,606nm ~ 609nm; Transmission wave band 8,659nm ~ 662nm; Transmission wave band 9,530.2nm ~ 531.2nm; Transmission wave band 10,528nm ~ 529.5nm.During use, the optical filter of multiple or whole wave band can be inserted according to measurement demand.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of the technical program, it all should be encompassed in the middle of right of the present invention.
Claims (4)
1. a magnetic-type laser radar echo spectral separator, is characterized in that: comprise optical filter and shell separator, is provided with several optical filter guide groove and filter supporter in described shell separator, and described optical filter is arranged in optical filter guide groove; The top of described optical filter is provided with permanent type magnet strip, the upper and lower side of described optical filter is arranged in filter supporter by buffer spring, the top of described optical filter is also provided with magnetic attraction device, described separation vessel also comprises and is in control module in light path for controlling each road optical filter, described separation vessel comprises the optical filter of following wave band: transmission wave band 1,353nm ~ 354nm; Transmission wave band 2,354.3nm ~ 354.6nm; Transmission wave band 3,354.9nm ~ 355.1nm; Transmission wave band 4,405nm ~ 410nm, transmission wave band 5,384nm ~ 389nm; Transmission wave band 6,527nm ~ 533nm; Transmission wave band 7,606nm ~ 609nm; Transmission wave band 8,659nm ~ 662nm; Transmission wave band 9,530.2nm ~ 531.2nm; Transmission wave band 10,528nm ~ 529.5nm.
2. magnetic-type laser radar echo spectral separator according to claim 1, it is characterized in that: between described optical filter and optical filter guide groove, be provided with ball, described ball is fixed on ball bearing frame, and described ball bearing frame is fixed on shell separator.
3. magnetic-type laser radar echo spectral separator according to claim 1, is characterized in that: described buffer spring is provided with the miniature position switch for detecting optical filter position.
4. magnetic-type laser radar echo spectral separator according to claim 1, it is characterized in that: the top of described optical filter guide groove is also provided with pilot lamp, described pilot lamp comprises for representing that optical filter is in the green light of normal light path position and is in the red light of inoperative position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510241453.8A CN105319542A (en) | 2015-05-13 | 2015-05-13 | Magnetic type laser radar echo spectrum separator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510241453.8A CN105319542A (en) | 2015-05-13 | 2015-05-13 | Magnetic type laser radar echo spectrum separator |
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| CN105319542A true CN105319542A (en) | 2016-02-10 |
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| CN201510241453.8A Pending CN105319542A (en) | 2015-05-13 | 2015-05-13 | Magnetic type laser radar echo spectrum separator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702227A (en) * | 2019-09-20 | 2020-01-17 | 深圳奥比中光科技有限公司 | Micro spectrometer and spectrum detection method |
| CN110702226A (en) * | 2019-09-20 | 2020-01-17 | 深圳奥比中光科技有限公司 | Micro spectrometer and spectrum detection method |
| CN111426640A (en) * | 2020-05-18 | 2020-07-17 | 中国工程物理研究院流体物理研究所 | Switchable continuous working spectrum camera and detection method |
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| CN102072810A (en) * | 2009-11-20 | 2011-05-25 | 沈阳仪表科学研究院 | Integral measuring method for signal-to-noise ratio of optical filter |
| CN104515041A (en) * | 2014-12-15 | 2015-04-15 | 深圳市华星光电技术有限公司 | Backlight module structure |
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2015
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Patent Citations (7)
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| JP2006222554A (en) * | 2005-02-08 | 2006-08-24 | Mitsubishi Electric Corp | Imaging apparatus |
| CN200979634Y (en) * | 2006-05-24 | 2007-11-21 | 深圳市景阳数码技术有限公司 | A camera light filter power drive |
| CN201194059Y (en) * | 2008-04-10 | 2009-02-11 | 陈新发 | Spectral filter switching apparatus for digital image shooting device |
| CN201438235U (en) * | 2009-05-18 | 2010-04-14 | 钟金昌 | Light filter sliding structure |
| CN201489249U (en) * | 2009-07-27 | 2010-05-26 | 深圳市宏天顺电子有限公司 | Mobile ray filter switching and driving circuit and device |
| CN102072810A (en) * | 2009-11-20 | 2011-05-25 | 沈阳仪表科学研究院 | Integral measuring method for signal-to-noise ratio of optical filter |
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Cited By (3)
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| CN110702227A (en) * | 2019-09-20 | 2020-01-17 | 深圳奥比中光科技有限公司 | Micro spectrometer and spectrum detection method |
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| CN111426640A (en) * | 2020-05-18 | 2020-07-17 | 中国工程物理研究院流体物理研究所 | Switchable continuous working spectrum camera and detection method |
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Application publication date: 20160210 |
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