CN203101634U - Laser radar device for environmental monitoring - Google Patents
Laser radar device for environmental monitoring Download PDFInfo
- Publication number
- CN203101634U CN203101634U CN2013201828886U CN201320182888U CN203101634U CN 203101634 U CN203101634 U CN 203101634U CN 2013201828886 U CN2013201828886 U CN 2013201828886U CN 201320182888 U CN201320182888 U CN 201320182888U CN 203101634 U CN203101634 U CN 203101634U
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- China
- Prior art keywords
- light path
- beam splitter
- laser
- environmental monitoring
- laser radar
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Abstract
The utility model discloses a laser radar device for environmental monitoring, and relates to an air pollution monitoring device. The laser radar device for the environmental monitoring comprises a signal reception device, a laser transmission device and a data acquisition and control device, wherein a laser transmitter is connected with a frequency doubling crystal; a photoelectric sensor is arranged beside a light path of the laser transmitter; an emitting beam splitter and a reflecting mirror are arranged on the light path of the laser transmitter; the emitting beam splitter is mounted on a plane rotatable regulating plate; a rotating shaft is arranged in the center of the rotatable regulating plate, mounted at the top end of a support, and fixedly connected with a rotatable handle; an outlet of a receiving telescope is connected with a field stop; the field stop enters a relaying light path by a coupled fiber; receiving beam splitters and collimating lenses are placed on the relaying light path sequentially; and photoelectric detectors are arranged at an outlet of the relaying light path. The laser radar device for the environmental monitoring solves the problems that the existing environmental pollution monitoring device is high in cost and inconvenient to operate, and the angle of the emitting beam splitter for detection is inconvenient to adjust.
Description
Technical field
The utility model relates to the air monitoring device.
Background technology
Air monitoring is meant kind and the concentration thereof of measuring pollutant in the atmosphere, the process of observing its spatial and temporal distributions and Changing Pattern.The purpose of air monitoring is to discern the polluter in the atmosphere, grasps its distribution and Diffusion Law, monitors the discharging and the control situation of the source of atmospheric pollution.
Present confirmed atmosphere pollution has kind more than 100, and these pollutants are distributed in the atmosphere with molecularity and particle shape two states.The molecularity pollutant mainly contains oxysulfide, oxides of nitrogen, carbon monoxide, ozone, halo hydrocarbon etc.Particle shape pollutant mainly contains depositing dust, overall suspended pellet, floating dust etc.Because atmospheric pollution and meteorological condition are closely related, thereby in air monitoring, should comprise the mensuration of meteorologic parameters such as wind direction, wind speed, temperature, air pressure, intensity of solar radiation, relative humidity.Air monitoring is the basis of air quality surveillance.
At present air monitoring has following several mode: the atmospheric environment pollution monitoring that (1) is traditional: based on the lab analysis after the wet method electrochemical techniques and the sampling of bleeding, can't carry out in real time the atmospheric pollution environment, on-line monitoring; (2) the atmospheric environment pollution monitoring instrument of optics and electronics technology, as ultraviolet fluorescence method SO2 monitor, chemoluminescence method NOx monitor, overstepping one's bounds arching pushing CO2 monitor or the like, but these instruments are only limited to spot measurement usually.(3) spectral remote sensing monitoring: can implement continuous real-time monitoring on a large scale, be the ideal tools of atmospheric environment pollution monitoring.(4) laser long-range absorption techniques and DIAL: have the advantage that investigative range is bigger, sensitivity is higher.But because the complicacy of its technology is still under test at present.
There is the cost height in existing environmental pollution monitoring device, detects with emission beam splitter angle to be not easy to regulate the problem of inconvenient operation.
The utility model content
The utility model is provided for the laser radar apparatus of environmental monitoring, and the utility model has solved existing environmental pollution monitoring device and had the cost height, detects with emission beam splitter angle to be not easy to regulate the problem of inconvenient operation.
For addressing the above problem, the utility model adopts following technical scheme: the laser radar apparatus that is used for environmental monitoring, comprise the signal receiving device that receiving telescope 1, reception beam splitter 3, collimation lens 4, photodetector 5 constitute, the laser beam emitting device that generating laser 10, frequency-doubling crystal 11 and emission beam splitter 13 constitute, and data acquisition and control device;
Generating laser 10 connects frequency-doubling crystal 11, and at the other photoelectric sensor 12 that is provided with of generating laser 10 light paths, generating laser 10 light paths are provided with emission beam splitter 13 and catoptron 17; Emission beam splitter 13 is installed on the rotation adjustable plate 16 of a planar shaped, and rotating adjustable plate 16 centers has a rotating shaft, and this rotating shaft is installed on the top of a support 14, is fixedly connected with a swing handle 15 in rotating shaft;
The outlet of receiving telescope 1 is connected with field stop 2, and field stop 2 enters the relaying light path by coupled fiber, interrupts being placed with successively on the light path receiving beam splitter 3, collimation lens 4, and the outlet of relaying light path is provided with photodetector 5; Photodetector 5 output terminals connect data acquisition and control device.
The utility model can realize that operating distance is far away to effective detection of factory and motor vehicle emission amount, and monitoring target is many, and it is relatively easy that technology realizes, has embodied the development trend of environmental monitoring.This installation cost can satisfy the requirement of environmental protection industry popularization low.
The utility model beneficial effect is: (1) adopts unique technique of alignment. and the height that guarantees Laser emission and receiving system is coaxial; (2) constitute the device for regulating rotary of launching beam splitter by support, swing handle and rotation adjustable plate, the staff can manual adjustments swing handle, conveniently adjusting emission beam splitter.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Symbol description among the figure: receiving telescope 1, field stop 2, reception beam splitter 3, collimation lens 4, photodetector 5, prime amplifier 6, photon counter 7, isochronous controller 8, computing machine 9, generating laser 10, frequency-doubling crystal 11, photoelectric sensor 12, emission beam splitter 13, support 14, swing handle 15, rotation adjustable plate 16, catoptron 17.
Embodiment
With illustrated embodiments the utility model is described in detail below.
As shown in Figure 1, the laser radar apparatus that is used for environmental monitoring, comprise the signal receiving device that receiving telescope 1, reception beam splitter 3, collimation lens 4, photodetector 5 constitute, the laser beam emitting device that generating laser 10, frequency-doubling crystal 11 and emission beam splitter 13 constitute, and data acquisition and control device;
Generating laser 10 connects frequency-doubling crystal 11, at the other photoelectric sensor 12 that is provided with of generating laser 10 light paths, generating laser 10 light paths are provided with emission beam splitter 13 and catoptron 17, emission beam splitter 13 is installed on the rotation adjustable plate 16 of a planar shaped, rotate adjustable plate 16 centers a rotating shaft is arranged, this rotating shaft is installed on the top of a support 14, is fixedly connected with a swing handle 15 in rotating shaft;
The outlet of receiving telescope 1 is connected with field stop 2, and field stop 2 enters the relaying light path by coupled fiber, interrupts being placed with successively on the light path receiving beam splitter 3, collimation lens 4, and the outlet of relaying light path is provided with photodetector 5; Photodetector 5 output terminals connect data acquisition and control device.
Described data acquisition and control device are made of prime amplifier 6, photon counter 7, isochronous controller 8 and computing machine 9, photodetector 5 output terminals connect prime amplifier 6, and prime amplifier 6 connects photon counter 7, isochronous controller 8 and computing machine 9 successively; Photoelectric sensor 12, generating laser 10 connect isochronous controller 8 respectively.
The utility model principle of work: generating laser is to aerial emission one laser pulse, this laser pulse in communication process, constantly with detecting material in molecule and atom have an effect.In case the laser pulse of propagating enters the visual field of receiving telescope, then the mutual optical echo that produces of laser and atmospheric substance will be received by telescope, can obtain the echoed signal of laser radar after input and processing.By analysis, then can obtain the concentration of detecting material to echoed signal.
It should be noted that at last: obviously, the foregoing description only is for the utility model example clearly is described, and is not the qualification to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being amplified out thus or change still are among the protection domain of the present utility model.
Claims (2)
1. the laser radar apparatus that is used for environmental monitoring, it is characterized in that, comprise the signal receiving device that receiving telescope (1), reception beam splitter (3), collimation lens (4), photodetector (5) constitute, the laser beam emitting device that generating laser (10), frequency-doubling crystal (11) and emission beam splitter (13) constitute, and data acquisition and control device;
Generating laser (10) connects frequency-doubling crystal (11), and at the other photoelectric sensor (12) that is provided with of generating laser (10) light path, generating laser (10) light path is provided with emission beam splitter (13) and catoptron (17); Emission beam splitter (13) is installed on the rotation adjustable plate (16) of a planar shaped, and rotating adjustable plate (16) center has a rotating shaft, and this rotating shaft is installed on the top of a support (14), is fixedly connected with a swing handle (15) in rotating shaft;
The outlet of receiving telescope (1) is connected with field stop (2), field stop (2) enters the relaying light path by coupled fiber, interrupt being placed with successively on the light path receiving beam splitter (3), collimation lens (4), the outlet of relaying light path is provided with photodetector (5); Photodetector (5) output terminal connects data acquisition and control device.
2. the laser radar apparatus that is used for environmental monitoring according to claim 1, it is characterized in that, described data acquisition and control device are made of prime amplifier (6), photon counter (7), isochronous controller (8) and computing machine (9), photodetector (5) output terminal connects prime amplifier (6), and prime amplifier (6) connects photon counter (7), isochronous controller (8) and computing machine (9) successively; Photoelectric sensor (12), generating laser (10) connect isochronous controller (8) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201828886U CN203101634U (en) | 2013-03-31 | 2013-03-31 | Laser radar device for environmental monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201828886U CN203101634U (en) | 2013-03-31 | 2013-03-31 | Laser radar device for environmental monitoring |
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| Publication Number | Publication Date |
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| CN203101634U true CN203101634U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2013201828886U Expired - Fee Related CN203101634U (en) | 2013-03-31 | 2013-03-31 | Laser radar device for environmental monitoring |
Country Status (1)
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| CN (1) | CN203101634U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793214A (en) * | 2015-04-24 | 2015-07-22 | 芜湖航飞科技股份有限公司 | Laser radar imaging device |
| CN103914731B (en) * | 2014-01-07 | 2017-03-08 | 浙江科技学院 | A kind of bamboo cane counting machine |
| CN107976664A (en) * | 2016-10-21 | 2018-05-01 | 大众汽车有限公司 | Laser radar sensor and the method for carrying out optical scanner to surrounding |
| CN111693966A (en) * | 2020-06-11 | 2020-09-22 | 中国科学院精密测量科学与技术创新研究院 | Astronomical positioning field matching device and method for laser radar |
-
2013
- 2013-03-31 CN CN2013201828886U patent/CN203101634U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103914731B (en) * | 2014-01-07 | 2017-03-08 | 浙江科技学院 | A kind of bamboo cane counting machine |
| CN104793214A (en) * | 2015-04-24 | 2015-07-22 | 芜湖航飞科技股份有限公司 | Laser radar imaging device |
| CN107976664A (en) * | 2016-10-21 | 2018-05-01 | 大众汽车有限公司 | Laser radar sensor and the method for carrying out optical scanner to surrounding |
| US11041942B2 (en) | 2016-10-21 | 2021-06-22 | Volkswagen Aktiengesellschaft | Lidar-sensor and method for optical scanning of an environment |
| CN107976664B (en) * | 2016-10-21 | 2022-07-01 | 大众汽车有限公司 | Lidar sensor and method for optically scanning the surroundings |
| CN111693966A (en) * | 2020-06-11 | 2020-09-22 | 中国科学院精密测量科学与技术创新研究院 | Astronomical positioning field matching device and method for laser radar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20160331 |