CN204086804U - A kind of light beam chosen spacer of sequence laser shadowgraph system - Google Patents
A kind of light beam chosen spacer of sequence laser shadowgraph system Download PDFInfo
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- CN204086804U CN204086804U CN201420460203.4U CN201420460203U CN204086804U CN 204086804 U CN204086804 U CN 204086804U CN 201420460203 U CN201420460203 U CN 201420460203U CN 204086804 U CN204086804 U CN 204086804U
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Abstract
The utility model belongs to hypervelocity moment technical field of imaging, relate to a kind of light beam chosen spacer of sequence laser shadowgraph system, comprise space laser array of source, space laser array of source is distributed on platform by least 2 array of source, the one-level light beam that space laser array of source sends successively incides the first catoptron corresponding in first order reflection mirror group plate respectively, secondary beams converge after first catoptron reflection is injected into the second catoptron of circumferentially array in secondary reflex mirror group plate, three grades of light beams after second catoptron reflection are injected into the light hole offered in the middle of first order reflection mirror group plate.The one-level light beam launched by space laser array of source of the utility model, after the reflection of multiple first catoptron and the second catoptron, is adjusted to the sequence light beam that space interval is very little, by light hole, enters beam expanding lens; Control the Transmission Time Interval of each light source in space laser array of source, just can be met sequence light beam required for shooting transient process.
Description
Technical field
The utility model belongs to hypervelocity moment technical field of imaging, relates to a kind of light beam chosen spacer of sequence laser shadowgraph system.
Background technology
Along with the development of China's Aerospace Technology, weaponry and basic subject, the research relating to the fields such as hypervelocity aerodynamics, hypervelocity impact, explosion and shock, burning and chemical reaction deepens continuously.In these research work, many phenomenons are only microsecond even the ultra-high speed transient change procedure of nanosecond the duration, need a kind of ultra-speed shooting equipment and can carry out clear, record by imaging continuously, to grasp the essence of physical phenomenon to this process.
Existing shadowgraph system uses single light source, realization be single channel photoimaging, cannot meet the demands.
Find through research, there is sequence laser shadowgraph system in some country external, this system can meet the needs of high transient process test, and external hypervelocity sequence shadowgraph system carries out blockade on new techniques and embargo to China, China and my army is caused also not to have a kind of laser shadowgraph system that can meet the ultra-high speed transient change procedure of record nanosecond.
Through studying for many years, I investigated the sequence laser shadowgraph system being different from foreign technology, what the sequence laser shadowgraph system studied adopted is space laser array of source, is realized the record of ultra-high speed transient phenomenon by the sequence bright dipping controlling light source.And space laser array of source is limited to the physical size of light source and the collimation of laser, the light beam formed is rectilinear propagation, directly cannot produce the sequence light beam meeting in sequence shadowgraph system and incide required for beam expanding lens.
Utility model content
The purpose of this utility model is to provide the light beam chosen spacer that a kind of beams converge formed by space laser array of source becomes can meet sequence light beam required for beam expanding lens.
For reaching above-mentioned utility model object, the utility model provides a kind of light beam chosen spacer of sequence laser shadowgraph system, comprise space laser array of source, first order reflection mirror group plate and secondary reflex mirror group plate, space laser array of source, secondary reflex mirror group plate and first order reflection mirror group plate are fixed on platform successively;
Space laser array of source is distributed on platform by least 2 array of source, the one-level light beam that space laser array of source sends successively incides the first catoptron corresponding in first order reflection mirror group plate respectively, secondary beams converge after first catoptron reflection is injected into the second catoptron of circumferentially array in secondary reflex mirror group plate, three grades of light beams after second catoptron reflection are injected into the light hole offered in the middle of first order reflection mirror group plate, and light hole is coaxial with shadowing systems beam expanding lens.
Further, the first catoptron and the second catoptron are fixed on first order reflection mirror group plate and secondary reflex mirror group plate respectively by three spring bolts, and three spring bolts are equally spaced circumferentially.
The one-level light beam launched by space laser array of source of the utility model, after the reflection of multiple first catoptron and the second catoptron, is adjusted to the sequence light beam that space interval is very little, by light hole, enters beam expanding lens; Control the Transmission Time Interval of each light source in space laser array of source, just can be met sequence light beam required for shooting transient process.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model light beam chosen spacer;
Fig. 2 is the schematic diagram of the utility model three spring bolts when being equally spaced circumferentially;
Fig. 3 is the fundamental diagram of the utility model light beam chosen spacer.
Embodiment
A kind of light beam chosen spacer of sequence laser shadowgraph system, as shown in figures 1 and 3, comprise space laser array of source 2, first order reflection mirror group plate 3 and secondary reflex mirror group plate 4, space laser array of source 2, secondary reflex mirror group plate 4 and first order reflection mirror group plate 3 are fixed on the platform 1 successively:
Space laser array of source 2 divides two row arrays to arrange on the platform 1 by 8 light sources, the one-level light beam 9 that space laser array of source sends is parallel respectively incides the first catoptron 6 corresponding in first order reflection mirror group plate 3, the one-level light beam 9 of space laser array of source 2 incidence reflects by the first catoptron 6, secondary light beam 10 after reflection converges the second catoptron 7 being injected into circumferentially array in secondary reflex mirror group plate 4, the secondary light beam 10 that first catoptron 6 is injected reflects by the second catoptron 7, three grades of light beams 11 after reflection are injected into the light hole 5 offered in the middle of first order reflection mirror group plate 3, light hole 5 is coaxial with shadowing systems beam expanding lens, light beam enters beam expanding lens by light hole 5.
The one-level light beam 9 launched of space laser array of source 2 is after the reflection of 8 the first catoptrons 6 and 8 the second catoptrons 7, be adjusted to the sequence light beam that space interval is very little: as long as control the Transmission Time Interval of each light source in space laser array of source 2, just can be met sequence light beam required for beam expanding lens.
Further, as shown in Figure 2, the first catoptron 6 is fixed on first order reflection mirror group plate 3, three spring bolts 8 by three spring bolts 8 and is equally spaced circumferentially, is adjusted the angle of the first catoptron 6 by the range difference rotating different spring bolt 8.
In like manner, the second catoptron 7 is fixed on secondary reflex mirror group plate 4 by three spring bolts 8, and three spring bolts 8 are equally spaced circumferentially.
In the utility model, the light source of space laser array of source 2 is not limited to 8, is generally even number, and minimum is 2.
During work, the light source of space laser array of source 2 is spaced luminous successively, controls the Transmission Time Interval of each light source in space laser array of source, just can be met sequence light beam required for shooting transient process.
Above-described specific descriptions; the purpose of this utility model, technical scheme and beneficial effect have been described in detail; be understood that; the foregoing is only specific embodiment of the utility model; and be not used in restriction protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. the light beam chosen spacer of a sequence laser shadowgraph system, it is characterized in that, light beam chosen spacer comprises space laser array of source (2), first order reflection mirror group plate (3) and secondary reflex mirror group plate (4), and space laser array of source (2), secondary reflex mirror group plate (4) and first order reflection mirror group plate (3) are fixed on platform (1) successively;
Space laser array of source (2) is distributed on platform (1) by least 2 array of source, the one-level light beam (9) that space laser array of source sends successively incides the first catoptron (6) corresponding in first order reflection mirror group plate (3) respectively, secondary light beam (10) after first catoptron (6) reflection converges the second catoptron (7) being injected into circumferentially array in secondary reflex mirror group plate (4), three grades of light beams (11) after second catoptron (7) reflection are injected into the light hole (5) offered in the middle of first order reflection mirror group plate (3), light hole (5) is coaxial with shadowing systems beam expanding lens.
2. the light beam chosen spacer of sequence laser shadowgraph system as claimed in claim 1, it is characterized in that, first catoptron (6) and the second catoptron (7) are fixed in first order reflection mirror group plate (3) and secondary reflex mirror group plate (4) respectively by three spring bolts (8), and three spring bolts (8) are equally spaced circumferentially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420460203.4U CN204086804U (en) | 2014-08-08 | 2014-08-08 | A kind of light beam chosen spacer of sequence laser shadowgraph system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420460203.4U CN204086804U (en) | 2014-08-08 | 2014-08-08 | A kind of light beam chosen spacer of sequence laser shadowgraph system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204086804U true CN204086804U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420460203.4U Active CN204086804U (en) | 2014-08-08 | 2014-08-08 | A kind of light beam chosen spacer of sequence laser shadowgraph system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204086804U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280994A (en) * | 2014-08-08 | 2015-01-14 | 中国空气动力研究与发展中心超高速空气动力研究所 | Light beam space adjusting device of sequence laser shadow photographic system |
| CN114509911A (en) * | 2021-12-28 | 2022-05-17 | 中国空气动力研究与发展中心超高速空气动力研究所 | Coaxial superspeed multi-sequence laser shadow imaging device |
-
2014
- 2014-08-08 CN CN201420460203.4U patent/CN204086804U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280994A (en) * | 2014-08-08 | 2015-01-14 | 中国空气动力研究与发展中心超高速空气动力研究所 | Light beam space adjusting device of sequence laser shadow photographic system |
| CN114509911A (en) * | 2021-12-28 | 2022-05-17 | 中国空气动力研究与发展中心超高速空气动力研究所 | Coaxial superspeed multi-sequence laser shadow imaging device |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |