CN205450019U - Laser that utilizes magnetic suspension impels target momentum measuring device - Google Patents
Laser that utilizes magnetic suspension impels target momentum measuring device Download PDFInfo
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- CN205450019U CN205450019U CN201620271580.2U CN201620271580U CN205450019U CN 205450019 U CN205450019 U CN 205450019U CN 201620271580 U CN201620271580 U CN 201620271580U CN 205450019 U CN205450019 U CN 205450019U
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- photoelectric conversion
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Abstract
The utility model provides a laser that utilizes magnetic suspension impels target momentum measuring device, including laser detector, the target, survey light, photoelectric conversion device, oscilloscope, magnetic levitation device, carbon fiber tube, the counter weight, strong laser is focused on behind the target surface, produce the plasma who sprays, the detection light that laser detector produced is received by photoelectric conversion device, photoelectric conversion device is used for receiving the detection light beam, and turn into the light signal and spread into oscilloscope into behind the signal of telecommunication and carry out the record, oscilloscope is used for surveying light signal time interval data, the left end at carbon fiber tube is fixed to target as ablating, carbon fiber tube's right -hand member is used for hanging the counter weight, the utility model relates to a laser that utilizes magnetic suspension impels target momentum measuring device make full use of magnetic levitation device technique, the target speed of acquireing that can be accurate do not receive gravity and tensile the influence, and measured data is accurate.
Description
Technical field
This utility model relates to laser threat warner field, utilizes maglev laser threat warner target momentum survey device particularly to one.
Background technology
Trend of Laser Propulsion Technology is a kind of new propulsion technology being expected to realize the transmitting of aircraft LEO based on light laser with matter interaction principle.Compared with traditional chemical propulsion, the load ratio of laser threat warner is higher, and the range of accommodation of propulsive parameter is bigger, and can surmount the speed limit of every one-level chemical rocket.Trend of Laser Propulsion Technology is hopeful to play an important role at aspects such as space junk removing, attitude of flight vehicle adjustment, obtains development rapidly in the souvenir in past.
Light laser and working medium effect, ablation target produces the plasma of supersonic velocity, and according to explosive principle, the opposite direction at plasma jet produces an active force, i.e. active force can provide the thrust of vehicle launch.But, the momentum produced due to laser-plasma is the least and short for action time with material, and how Laser Measurement-plasma momentum is a problem needing first to solve.For the measurement of laser-plasma momentum, reality utilize principle of conservation of momentum realize.According to the conservation of momentum, the momentum produced by the target of laser ablation is quantitatively the most equal with laser-plasma momentum, in opposite direction.Laser Measurement advances target momentum, it is critical only that acquisition target speed accurately.Consult pertinent literature and patent understands, take the method for the laser threat warner target speed measured to be target at present and form single pendulum with filament, skim over the detection light time interval calculation target speed of two bundle known distances by measuring cycloid.Its shortcoming is that single pendulum swinging track is circular arc, is affected with filament pulling force by gravity, and velocity attenuation is fast.Error is big, and repeatable difference is the inherent shortcoming of single pendulum measuring method.
Utility model content
The problem existed for prior art, the purpose of this utility model is to provide one to utilize maglev laser threat warner target momentum survey device, and the present invention makes full use of the know-why of magnetic levitation system, it is possible to obtain target speed accurately, do not affected by gravity and pulling force, and measurement data is accurate.
nullOne utilizes maglev laser threat warner target momentum survey device，Including laser detector (101)，Target (102)，Detection light (103)，Photoelectric conversion device (104)，Oscillograph (105)，Magnetic levitation system (106)，Carbon fiber pipe (107)，Counterweight (108)，After light laser is focused onto target (102) surface，Produce the plasma of injection，The detection light (103) that laser detector (101) produces be photoelectrically converted device (104) receive，Photoelectric conversion device (104) is used for receiving detection light beam，And incoming oscillograph (105) carries out record after converting optical signal into the signal of telecommunication，Oscillograph (105) is used for detecting optical signal time interval data，Target (102) as ablation is fixed on carbon fiber pipe (107) left end，The right-hand member of carbon fiber pipe (107) is used for suspended counterweight (108).
Described carbon fiber pipe quantity is 2.
On described magnetic levitation system, symmetric position is provided with 4 holes, is penetrated by carbon fiber pipe in hole, makes 2 carbon fiber pipes and bulb diameter symmetrical and is positioned at spheroid horizontal symmetry plane, and the distance of two carbon fiber pipes is millimeter magnitude.
Laser detector light source uses helium neon laser.
Laser detector light source is used for producing laser beam as detection light beam；Photodiode is for receiving the detection light beam that laser instrument produces, and converts optical signal into the signal of telecommunication；The signal that oscillograph receives for recording light electric diode；Magnetic levitation system is for eliminating the gravity impact on tachometric survey.By on oscillograph display two signals between time width and carbon fiber pipe between interval and detection light beam can calculate target speed according to the distance of spheroid center of rotation.According to principle of conservation of momentum, the momentum of laser-plasma is the speed product with the quality of target own of target.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of this utility model measurement apparatus；
Fig. 2 is the schematic diagram calculation of target tachometric survey；
In figure, 101 is laser detector, and 102 is target, and 103 is detection light, and 104 is photoelectric conversion device, and 105 is oscillograph, and 106 is magnetic levitation system, and 107 is carbon fiber pipe, and 108 is counterweight.
Detailed description of the invention
As shown in Figure 1, one of the present utility model utilizes maglev laser threat warner target momentum survey device, including laser detector (101), target (102), detection light (103), photoelectric conversion device (104), oscillograph (105), magnetic levitation system (106), carbon fiber pipe (107), counterweight (108), after light laser is focused onto target (102) surface, produces the plasma of injection.The detection light (103) that laser detector (101) produces be photoelectrically converted device (104) receive.Photoelectric conversion device (104) is simultaneously entered oscillograph (105) record after converting optical signal into the signal of telecommunication.And the target (102) being used for ablation is fixed on carbon fiber pipe (107) left end, the right-hand member of carbon fiber pipe (107) is used for suspended counterweight (108).
Concrete measurement process is: open magnetic levitation system, and regulation light laser focuses on target surface, produces the plasma of injection on target surface.According to the conservation of momentum, the opposite direction along plasma jet is started to rotate by target with certain speed.And detection light beam can be blocked by the carbon fiber pipe swung, in the moment that carbon fiber pipe is in the light, photoelectric conversion device cannot receive optical signal, and oscillograph will appear from a pulse signal.Owing to being two carbon fiber pipes, so would indicate that two pulse signals on oscillograph, the time width Δ t between two signals is that carbon fiber pipe put the detection time used by light.
As in figure 2 it is shown, the note centre of sphere is d to the distance of carbon fiber pipe, detect light beam to being l by the perpendicular distance of the centre of sphere1, target is to being l by the distance of the centre of sphere2, then target speed is:
Measuring by experiment for the Δ t in formula, remaining parameter is preset parameter when device makes.
For it should be appreciated by those skilled in the art, the laser detector in this utility model is only used as light source, it is provided that the detection light beam that a branch of continuous print spot diameter is the least, and other can provide the light source of light beam to be used as；A kind of element that described photodiode converts as photosignal, other element that can convert photosignal is used as.In view of there is certain air drag (owing to speed is less in an atmosphere, so air drag is almost negligible), rigorous way is detection light beam that root carbon fiber pipe after target, the most accurate way of one is to be worked under vacuum conditions by package unit, and data now will be closer to the target speed of reality.
This utility model is not limited to above-mentioned preferred forms, anyone draw under enlightenment of the present utility model other any same or like with this utility model as product, within all falling within protection domain of the present utility model.
Claims (4)
- null1. one kind utilizes maglev laser threat warner target momentum survey device，Including laser detector (101)，Target (102)，Detection light (103)，Photoelectric conversion device (104)，Oscillograph (105)，Magnetic levitation system (106)，Carbon fiber pipe (107)，Counterweight (108)，It is characterized in that: magnetic levitation system (106) is for eliminating the gravity impact on tachometric survey，The detection light (103) that laser detector (101) produces be photoelectrically converted device (104) receive，Photoelectric conversion device (104) is used for receiving detection light beam，And incoming oscillograph (105) carries out record after converting optical signal into the signal of telecommunication，Oscillograph (105) is used for detecting optical signal time interval data，Target (102) as ablation is fixed on carbon fiber pipe (107) left end，The right-hand member of carbon fiber pipe (107) is used for suspended counterweight (108).
- One the most according to claim 1 utilizes maglev laser threat warner target momentum survey device, it is characterised in that: described carbon fiber pipe quantity is 2.
- One the most according to claim 1 utilizes maglev laser threat warner target momentum survey device, it is characterized in that: on described magnetic levitation system, symmetric position is provided with 4 holes, carbon fiber pipe is penetrated in hole, making 2 carbon fiber pipes and bulb diameter symmetrical and be positioned at spheroid horizontal symmetry plane, the distance of two carbon fiber pipes is millimeter magnitude.
- One the most according to claim 1 utilizes maglev laser threat warner target momentum survey device, it is characterised in that: laser detector light source uses He-Ne Lasers detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620271580.2U CN205450019U (en) | 2016-04-01 | 2016-04-01 | Laser that utilizes magnetic suspension impels target momentum measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620271580.2U CN205450019U (en) | 2016-04-01 | 2016-04-01 | Laser that utilizes magnetic suspension impels target momentum measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205450019U true CN205450019U (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620271580.2U Expired - Fee Related CN205450019U (en) | 2016-04-01 | 2016-04-01 | Laser that utilizes magnetic suspension impels target momentum measuring device |
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| CN (1) | CN205450019U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928949A (en) * | 2021-01-22 | 2021-06-08 | 中国科学院电工研究所 | Magnetic suspension experimental device for eliminating high-temperature superconducting space debris |
| CN113405993A (en) * | 2021-06-23 | 2021-09-17 | 北京卫星环境工程研究所 | Device and method for measuring two-dimensional impulse of irregular target driven by laser ablation |
-
2016
- 2016-04-01 CN CN201620271580.2U patent/CN205450019U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928949A (en) * | 2021-01-22 | 2021-06-08 | 中国科学院电工研究所 | Magnetic suspension experimental device for eliminating high-temperature superconducting space debris |
| CN112928949B (en) * | 2021-01-22 | 2022-05-17 | 中国科学院电工研究所 | Magnetic suspension experimental device for eliminating high-temperature superconducting space debris |
| CN113405993A (en) * | 2021-06-23 | 2021-09-17 | 北京卫星环境工程研究所 | Device and method for measuring two-dimensional impulse of irregular target driven by laser ablation |
| CN113405993B (en) * | 2021-06-23 | 2023-01-31 | 北京卫星环境工程研究所 | Device and method for measuring two-dimensional impulse of irregular target driven by laser ablation |
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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 |
Granted publication date: 20160810 Termination date: 20170401 |
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| CF01 | Termination of patent right due to non-payment of annual fee |