CN201716412U - Pulsed laser coaxial transmitting and receiving device and oil spill monitoring system - Google Patents
Pulsed laser coaxial transmitting and receiving device and oil spill monitoring system Download PDFInfo
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- CN201716412U CN201716412U CN2010202462623U CN201020246262U CN201716412U CN 201716412 U CN201716412 U CN 201716412U CN 2010202462623 U CN2010202462623 U CN 2010202462623U CN 201020246262 U CN201020246262 U CN 201020246262U CN 201716412 U CN201716412 U CN 201716412U
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Abstract
The utility model discloses a pulsed laser coaxial transmitting and receiving device and an oil spill monitoring system. The pulsed laser coaxial transmitting and receiving device comprises a light transmitting module, a light receiving module and a transmission light path module; the transmission light path module comprises a reflecting region and a transmitting region which are isolated through a light barrier, and a through hole is formed on the light barrier; the reflecting region is positioned below the light transmitting module, a first reflecting mirror is arranged in the region, and a light beam emitted by the light transmitting module is reflected to the through hole via the first reflecting mirror; and the transmitting region is positioned below the light receiving module, a second reflecting mirror is arranged in the region, and the light beam penetrating out of the through hole is transmitted to the second reflecting mirror and further reflected to the outside. The pulsed laser coaxial transmitting and receiving device realizes the coaxial transmitting and receiving of pulsed laser by utilizing the simple transmission light path structure, thereby improving the effectiveness and the signal-to-noise ratio of receiving of a target signal of the device.
Description
Technical field
The utility model relates to a kind of pulse laser emission and receiving equipment, specifically, relates to coaxial emission of pulse laser and receiving equipment and has the spilled oil monitoring system of this equipment, belongs to the remote sensing survey technical field.
Background technology
In human social activity's process, petroleum products is being brought into play crucial effects.Along with the mankind obtain movable increasingly to ocean resources, especially in the transportation and petroleum resources performance history of oil, oily leakage incident happens occasionally.As one of serious marine eco-environment disaster, oil spilling not only brings direct influence to the marine eco-environment, bring significant damage also for the economic development and the people's health of coastland, can therefore effectively handle oil spill have become the problem that the whole world is paid close attention to and puted forth effort to solve.
The prerequisite of handling oil spill is to monitor oil spilling position, greasy dirt type and pollution level, and these monitorings can realize by the spilled oil monitoring system.Spilled oil monitoring system commonly used has at present generally comprised Laser emission and receiving equipment, photoelectric conversion device and data acquisition process equipment, its principle is to utilize the interaction of material in high power laser and sea and the surface seawater, reception is loaded with the optical signalling of monitored target information, the light signal that receives is converted to electric signal, treated, collection and computational analysis realize monitoring and identification to monitoring objective.Laser emission and receiving equipment part are as the light signal module of spilled oil monitoring system, it is the key that light path is regulated, controlling the primary link that system surveys, when fluorescence signal was outputed to photoelectric conversion device, also needing provided time control signal for data acquisition process equipment.
At present, the implementation structure of Laser emission and receiving equipment has coaxial and two kinds of paraxonics, and coaxial configuration is better than the paraxonic structure in actual applications.The design of coaxial configuration is varied, normally utilizes large-sized optical elements to realize optic path, and component size is big, is unfavorable for Laser emission and receiving equipment miniaturization.And coaxial emission of the pulse laser that existing volume is bigger and receiving equipment utilize situation for single wavelength emission of multi-pulse laser, and it is kept away to remove and disturbs the effect of wavelength not ideal enough.
Summary of the invention
One of the purpose of this utility model provides coaxial emission of a kind of pulse laser and receiving equipment, utilizes simple transmission light channel structure to realize the coaxial emission and the reception of pulse laser, and the echo signal that improves equipment receives validity and signal to noise ratio (S/N ratio).
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
Coaxial emission of a kind of pulse laser and receiving equipment comprise light emission module, Optical Receivers and transmission light path module; Described transmission light path module comprises echo area and the launch site that keeps apart by light barrier, offers through hole on the described light barrier; Described echo area is positioned at the below of described light emission module, is provided with first catoptron in this district, the light beam that described light emission module sends through described first mirror reflects to described through hole; Described launch site is positioned at the below of described Optical Receivers, is provided with second catoptron in this district, and the beam Propagation that passes from described through hole is to described second catoptron and reflect away.
Preferably, described light emission module is a laser instrument, and described Optical Receivers is a telescope.
Coaxial emission of aforesaid pulse laser and receiving equipment are the light of filtering interfering wavelength, are provided with filter plate in described through hole.
Coaxial emission of aforesaid pulse laser and receiving equipment are provided with the PIN pipe that produces trigger pip, so that effective trigger signals externally is provided in the described echo area.
Coaxial emission of aforesaid pulse laser and receiving equipment, for the adjusting that realizes the light beam three-dimensional, guarantee the coaxial of excitation beam and Optical Receivers main shaft, also be provided with first adjusting bracket that is used to regulate the described first catoptron direction in the described echo area, also be provided with second adjusting bracket that is used to regulate the described second catoptron direction in the described launch site, described first adjusting bracket and described second adjusting bracket are arranged on the alignment jig.
Coaxial emission of aforesaid pulse laser and receiving equipment, described first adjusting bracket include the slide rail and first fixed head that is fixed on the described alignment jig, and described slide rail is provided with the pitch regulation frame; Described pitch regulation frame is hinged with the mirror holder of described first catoptron on the one hand, is connected with described first fixed head by regulating bolt on the other hand.Utilize first adjusting bracket of said structure, can regulate at directions X and Z direction first catoptron.
Coaxial emission of aforesaid pulse laser and receiving equipment, described second adjusting bracket includes second fixed head that is fixed on the described alignment jig and the 3rd fixed head of fixing the mirror holder of described second catoptron, and described second fixed head is connected with two adjusting bolts of described the 3rd fixed head by the diagonal line setting.Utilize second adjusting bracket of said structure, can regulate at directions X and Y direction second catoptron.
Two of the purpose of this utility model provides a kind of spilled oil monitoring system, and this system includes Laser emission and receiving equipment, photoelectric conversion device and data acquisition process equipment; Wherein, described Laser emission is above-mentioned coaxial emission of pulse laser and receiving equipment with receiving equipment.
Compared with prior art, advantage of the present utility model and good effect are: utilize first catoptron that is arranged on the light emission module below and second catoptron that is positioned at the Optical Receivers below to realize coaxial emission of laser pulse and reception, light path transmission structure is simple; Simultaneously, adopt light barrier to form the partitioned organization of echo area and launch site, the scattered light that can avoid interference light wave is received by Optical Receivers, has effectively improved validity and signal to noise ratio (S/N ratio) that echo signal receives.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of a coaxial emission of the utility model pulse laser and an embodiment of receiving equipment;
Fig. 2 is the structural representation of alignment jig among this embodiment;
Fig. 3 is the part-structure synoptic diagram of first adjusting bracket among this embodiment;
Fig. 4 is the structural representation of second adjusting bracket among this embodiment;
Fig. 5 is the structured flowchart of an embodiment of the utility model spilled oil monitoring system;
Among above-mentioned each figure, Reference numeral and corresponding components title thereof are as follows:
1, light emission module; 2, Optical Receivers; 31, light barrier; 34, filter plate; 35, alignment jig;
32, echo area; 321, first catoptron; 322, PIN pipe; 323, first adjusting bracket; 3231, slide rail; 3232, first fixed head; 3233, pitch regulation frame; 3234, the mirror holder of first catoptron; 3235, regulate bolt;
33, launch site; 331, second catoptron; 332, second adjusting bracket; 3321, second fixed head; 3322, the 3rd fixed head; 3323, the mirror holder of second catoptron; 3324, regulate bolt; 3325, regulate bolt.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
Fig. 1 to Fig. 4 shows the structural representation of a coaxial emission of the utility model pulse laser and an embodiment of receiving equipment, wherein, Fig. 1 is the one-piece construction synoptic diagram of this embodiment, Fig. 2 is the structural representation of alignment jig among this embodiment, and Fig. 3 and Fig. 4 then are respectively the structural representations of first adjusting bracket and second adjusting bracket among this embodiment.
As shown in Figure 1, coaxial emission of the pulse laser of this embodiment and receiving equipment comprise light emission module 1, Optical Receivers 2 and transmission light path module.Wherein, transmission light path module comprises echo area 32 and the launch site 33 that keeps apart by light barrier 31, and offers through hole on light barrier 31, is used for light beam and passes.Echo area 32 is positioned at the below of light emission module 1, is provided with first catoptron 321 in this district; Launch site 33 is positioned at the below of Optical Receivers 2, is provided with second catoptron 331 in this district.
The light beam that light emission module 1 sends reflexes to through hole on the light barrier 31 through first catoptron 321, and beam Propagation to the second catoptron 331 that passes from through hole also reflects away.The light beam that reflects away can with the interaction of material in sea and the surface seawater, bring out sea oil contaminants, dissolved organic matter etc. and send fluorescence signal, Optical Receivers 2 is loaded with reception the optical signalling that brings out of monitored target information.
By adjusting the position of first catoptron 321 and second catoptron 331, make the outgoing beam that reflects away from second catoptron 331 overlap with the main shaft of Optical Receivers 2, realize that the coaxial of pulse laser transmits and receives, used optical element is few, and light path transmission structure is simple.And by adopting light barrier 31 that the optic path zone isolation is become echo area 32 and launch site 33, avoided the scattered light of the interference light wave that light emission module 1 launches to be received, thereby effectively improved validity and signal to noise ratio (S/N ratio) that echo signal receives by Optical Receivers 2.
In this embodiment, light emission module 1 is generally selected the laser instrument of multiple frequence for use, as the frequency tripling pulsed laser; Optical Receivers 2 is generally telescope, as Cassegrain telescope, Newtonian reflector, Schmidt telescope etc.; And first catoptron 321 is generally selected the laser line catoptron for use, and second catoptron 331 is generally selected the laser high reflective mirror for use.
As shown in Figure 1, be the light of further filtering interfering wavelength, the limit interferences light wave enters launch site 33, also is the receiving area of Optical Receivers 2, is provided with filter plate 34 in the through hole of light barrier 31.After filtered 34 in small amount of interference ripple in the light beam after 321 reflections of first catoptron filters, transfer to second catoptron 331 again.
Coaxial emission of pulse laser and receiving equipment need externally provide trigger pip, are used for trigger data acquisition and handle action, and therefore, this embodiment is provided with PIN pipe 322 in echo area 32.For guaranteeing that PIN manages 322 operate as normal, can make full use of in the echo area 32 scattered light again through the interference wavelength of filter plate 34 filterings, be advisable with the scattered light of the interference wavelength that can receive filter plate 34 filterings in the position that is provided with of PIN pipe 322.
In this embodiment, for the adjusting that realizes equipment light beam three-dimensional, guarantee the coaxial of excitation beam and Optical Receivers 2 main shafts, in echo area 32, also be provided with first adjusting bracket 323 that is used to regulate first catoptron, 321 directions, also being provided with second adjusting bracket, 332, the first adjusting brackets 323 that are used to regulate second catoptron, 331 directions and second adjusting bracket 332 in launch site 33 all is arranged on as shown in Figure 2 the alignment jig 35.
As shown in Figure 2, alignment jig 35 is as mounting and fixing bracket, be divided into two parts by light barrier 31, a part is to fix the echo area 32 of first catoptron 321 and first adjusting bracket 323, and a part is to fix the launch site 33 of second catoptron 331 and second adjusting bracket 332.
In conjunction with Fig. 2 and shown in Figure 3, first adjusting bracket 323 among this embodiment includes the slide rail 3231 and first fixed head 3232 that is fixed on the alignment jig 35, and slide rail 3231 is provided with pitch regulation frame 3233.Pitch regulation frame 3233 is hinged with the mirror holder 3234 of first catoptron that first catoptron 321 is installed on the one hand, is connected with first fixed head 3232 by regulating bolt 3235 on the other hand.Wherein, regulate bolt 3235 can adopt with first fixed head 3232 be threaded, with the syndeton that pitch regulation frame 3233 is rotationally connected, perhaps adopt the syndeton that is rotationally connected, is threaded with first fixed head 3232 with pitch regulation frame 3233.
With the direction perpendicular to light barrier 31 among Fig. 2 is directions X, then utilize first adjusting bracket 323 of said structure, can regulate at directions X and Z direction first catoptron, be specially: the mirror holder 3234 of the pitch regulation frame 3233 and first catoptron is hinged, the mirror holder 3234 of the catoptron of winning can be rotated on the Z direction along jointed shaft, thereby regulate the luffing angle of first catoptron 321, realize the adjusting of Z direction.Because pitch regulation frame 3233 is installed on the slide rail 3231, can slide along slide rail 3231, bolt 3235 is regulated in turn, can promote pitch regulation frame 3233 slides before and after slide rail 3231 is on directions X, the mirror holder 3234 that drives first catoptron slides on directions X, thereby realizes first adjusting of catoptron 321 on directions X.
As shown in Figure 3, the 3rd fixed head 3322, the second fixed heads 3321 that second adjusting bracket 332 among this embodiment includes the mirror holder 3323 that is fixed on second fixed head 3321 on the alignment jig 35 and fixes second catoptron are connected with 3325 with two adjusting bolts 3324 of the 3rd fixed head 3322 by the diagonal line setting.Wherein, regulate bolt 3324,3325 can adopt with second fixed head 3321 be threaded, with the syndeton that the 3rd fixed head 3322 is rotationally connected, perhaps adopt the syndeton that is rotationally connected with second fixed head 3321, is threaded with the 3rd fixed head 3322.
With the direction perpendicular to light barrier 31 among Fig. 2 is directions X, utilize second adjusting bracket 332 of said structure, can on directions X and Y direction, regulate second catoptron 331, be specially: owing to regulate bolt 3324 and 3325 diagonal line settings on second fixed head 3321, by adjusting two different precession/outputs of regulating bolt, can change the degree of tilt of the 3rd fixed head 3322, thereby realize the adjusting of second catoptron 331 on directions X and Y direction in directions X and Y direction.
The groundwork process of coaxial emission of the pulse laser of said structure and receiving equipment is: light emission module 1 sends the laser of various wavelength, incides in the echo area 32; By the position of first adjusting bracket, 323 adjustings, first catoptron 321, the laser facula that makes light emission module 1 send incides on first catoptron 321; 321 of first catoptrons act on the laser beam of selecting for use, realize the turnover reflection of 90 ° of directions of light beam; Light beam after 321 reflections of first catoptron incides on the filter plate 34, and filter plate 34 will disturb the scattered light of wavelength to be reflected in the echo area 32; Simultaneously, select the PIN pipe 322 of suitable spectral response range for use, utilize the scattered light of filter plate 34 filterings to trigger this PIN pipe 322, produce trigger pip output, be used for the control data collecting work; Regulate the position of second catoptron 331 by second adjusting bracket 332, the feasible beam and focus that incides launch site 33 after filter plate filters incides on second catoptron 331 and reflects away, and makes the light beam that reflects away overlap substantially with the main shaft of Optical Receivers 2 simultaneously.
Coaxial emission of the pulse laser of the foregoing description and receiving equipment can be applicable in the spilled oil monitoring system, as the optical signal equipment of spilled oil monitoring system.Fig. 5 shows the structured flowchart of an embodiment of the utility model spilled oil monitoring system.
As shown in Figure 5, the spilled oil monitoring system of this embodiment includes the coaxial emission of pulse laser and receiving equipment 51, photoelectric conversion device 52 and data acquisition process equipment 53.Coaxial emission of pulse laser and receiving equipment 51 emission high power laser signals utilize the interaction of material in high power laser and sea and the surface seawater to the sea, receive and are loaded with the optical signalling of monitored target information, and transfer in the photoelectric conversion device 52.Photoelectric conversion device 52 is the light signal beam split that receives, and is electric signal with the formal transformation of spectral distribution, and finishes the amplification output of hypofluorescence signal.Data acquisition process equipment 53 is gathered the electric signal of photoelectric conversion device 52 outputs, after series of computation is analyzed, realizes monitoring and identification to monitoring objective.
Above embodiment only in order to the explanation the technical solution of the utility model, but not limits it; Although the utility model is had been described in detail with reference to previous embodiment, for the person of ordinary skill of the art, still can make amendment to the technical scheme that previous embodiment is put down in writing, perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of the utility model technical scheme required for protection.
Claims (8)
1. coaxial emission of pulse laser and receiving equipment, comprise light emission module, Optical Receivers and transmission light path module, it is characterized in that described transmission light path module comprises echo area and the launch site that keeps apart by light barrier, offers through hole on the described light barrier; Described echo area is positioned at the below of described light emission module, is provided with first catoptron in this district, the light beam that described light emission module sends through described first mirror reflects to described through hole; Described launch site is positioned at the below of described Optical Receivers, is provided with second catoptron in this district, and the beam Propagation that passes from described through hole is to described second catoptron and reflect away.
2. coaxial emission of pulse laser according to claim 1 and receiving equipment is characterized in that, are provided with filter plate in described through hole.
3. coaxial emission of pulse laser according to claim 1 and receiving equipment is characterized in that, are provided with the PIN pipe that produces trigger pip in the described echo area.
4. according to claim 1 or coaxial emission of 2 or 3 described pulse lasers and receiving equipment, it is characterized in that, also be provided with first adjusting bracket that is used to regulate the described first catoptron direction in the described echo area, also be provided with second adjusting bracket that is used to regulate the described second catoptron direction in the described launch site, described first adjusting bracket and described second adjusting bracket are arranged on the alignment jig.
5. coaxial emission of pulse laser according to claim 4 and receiving equipment is characterized in that, described first adjusting bracket includes the slide rail and first fixed head that is fixed on the described alignment jig, and described slide rail is provided with the pitch regulation frame; Described pitch regulation frame is hinged with the mirror holder of described first catoptron on the one hand, is connected with described first fixed head by regulating bolt on the other hand.
6. coaxial emission of pulse laser according to claim 4 and receiving equipment, it is characterized in that, described second adjusting bracket includes second fixed head that is fixed on the described alignment jig and the 3rd fixed head of fixing the mirror holder of described second catoptron, and described second fixed head is connected with two adjusting bolts of described the 3rd fixed head by the diagonal line setting.
7. coaxial emission of pulse laser according to claim 1 and receiving equipment is characterized in that, described light emission module is a laser instrument, and described Optical Receivers is a telescope.
8. spilled oil monitoring system, include Laser emission and receiving equipment, photoelectric conversion device and data acquisition process equipment, it is characterized in that described Laser emission is coaxial emission of each described pulse laser and a receiving equipment in the aforesaid right requirement 1 to 7 with receiving equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202462623U CN201716412U (en) | 2010-06-22 | 2010-06-22 | Pulsed laser coaxial transmitting and receiving device and oil spill monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202462623U CN201716412U (en) | 2010-06-22 | 2010-06-22 | Pulsed laser coaxial transmitting and receiving device and oil spill monitoring system |
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| CN201716412U true CN201716412U (en) | 2011-01-19 |
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| CN2010202462623U Expired - Fee Related CN201716412U (en) | 2010-06-22 | 2010-06-22 | Pulsed laser coaxial transmitting and receiving device and oil spill monitoring system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200577A (en) * | 2011-03-23 | 2011-09-28 | 南京信息工程大学 | Method and device for debugging transmission azimuth of laser beam in laser radar detection |
| CN103116965A (en) * | 2013-01-28 | 2013-05-22 | 章文俊 | Port oil spill monitoring and warning system |
| CN110868253A (en) * | 2019-12-23 | 2020-03-06 | 中国电子科技集团公司第三十四研究所 | Capturing, aligning and tracking device for short-distance wireless optical communication |
| CN113655068A (en) * | 2021-10-20 | 2021-11-16 | 沂普光电(天津)有限公司 | Flaw detection equipment |
| CN115468927A (en) * | 2021-06-11 | 2022-12-13 | 中国石油天然气集团有限公司 | Airborne laser detection device and method for ground oil spilling pollutants |
-
2010
- 2010-06-22 CN CN2010202462623U patent/CN201716412U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200577A (en) * | 2011-03-23 | 2011-09-28 | 南京信息工程大学 | Method and device for debugging transmission azimuth of laser beam in laser radar detection |
| CN102200577B (en) * | 2011-03-23 | 2013-05-08 | 南京信息工程大学 | Method and device for debugging transmission azimuth of laser beam in laser radar detection |
| CN103116965A (en) * | 2013-01-28 | 2013-05-22 | 章文俊 | Port oil spill monitoring and warning system |
| CN110868253A (en) * | 2019-12-23 | 2020-03-06 | 中国电子科技集团公司第三十四研究所 | Capturing, aligning and tracking device for short-distance wireless optical communication |
| CN110868253B (en) * | 2019-12-23 | 2024-04-19 | 中国电子科技集团公司第三十四研究所 | Capturing, aligning and tracking device for short-distance wireless optical communication |
| CN115468927A (en) * | 2021-06-11 | 2022-12-13 | 中国石油天然气集团有限公司 | Airborne laser detection device and method for ground oil spilling pollutants |
| CN113655068A (en) * | 2021-10-20 | 2021-11-16 | 沂普光电(天津)有限公司 | Flaw detection equipment |
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Granted publication date: 20110119 Termination date: 20110622 |