CN203519159U - Diffuse reflection type highlight space-time sampling and measuring device based on rotating blade - Google Patents
Diffuse reflection type highlight space-time sampling and measuring device based on rotating blade Download PDFInfo
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- CN203519159U CN203519159U CN201320667847.6U CN201320667847U CN203519159U CN 203519159 U CN203519159 U CN 203519159U CN 201320667847 U CN201320667847 U CN 201320667847U CN 203519159 U CN203519159 U CN 203519159U
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Abstract
The utility model discloses a diffuse reflection type highlight space-time sampling and measuring device based on rotating blades. The device is composed of a movable platform, supporting frames, a driving device, light beam sampling runners, an electric control system and an infrared camera. The diffuse reflection type highlight space-time sampling and measuring device utilizes propeller type high-speed rotating blades arranged in a high energy laser transmission path, carries out diffuse reflection on a high energy laser beam passing through the device, receives the diffuse reflection light for imaging by the infrared camera, thereby obtaining a spatial and temporal distribution pattern of the high energy laser beam; and the most of the high energy laser energy can penetrate the rotating blades and continue the transmission along the original light path. The diffuse reflection type highlight space-time sampling and measuring device avoids the laser irradiated surface from being burnt due to too long dwell time of the highlight in the traditional measuring method, effectively improves the temporal resolution of highlight sampling, acquires facula images with high resolution, has good maneuvering performance, and is simple and practicable in subsequent rectification.
Description
Technical field
The utility model relates to a kind of measurement mechanism of high light spatial and temporal distributions parameter, and especially a kind of High Rotation Speed diffuse reflection blade that utilizes is implemented the on-Line Monitor Device of sampling to high light.
Background technology
Light laser, in propagation in atmosphere process, is subject to the impact of the atmospheric effects such as turbulent flow, thermal blooming and delustring, and far-field spot distributes has larger variation with respect to laser instrument outlet.The far field power density spatial and temporal distributions of Measurement accuracy High energy laser beam, obtains the important parameters such as laser beam quality, barycenter drift, has become the Atmospheric propagating effects of analyzing superlaser and the necessary means of evaluating high energy laser system performance index.
Traditional superlaser spatial and temporal distributions metering system is as ablation, CCD method based on face battle array sampling device, photoelectric/photothermal detector array method etc., all by receiving whole incident laser energies, hot spot is carried out to sampling and analyzing, light beam receives sample material need to have very strong heat-resisting ability; Meanwhile, make like this laser irradiation effect test and high light Atmospheric propagating effects measure test and be separated, cannot be real-time, intuitively superlaser irradiation effect and light beam are compared and associated to correlation parameters such as target characteristic, atmospheric conditions.In order to improve test efficiency, reduce test spending, reduce high energy laser system the risk and cost in design, assessment and decision-making, develop and develop effective high light spatial and temporal distributions On-line Measuring Method and device, become the inexorable trend of superlaser measuring technology development.Hou Zaihong etc. (light laser and the particle beams, the 3rd phase in 2002) improvement stationary plane configuration sensor hot spot mensuration, by 77 sensor arrangement across linear arrays, take this linear array as radius rotation is to laser beam sampling, completes the detection to laser facula.The method will can not stop laser propagation completely, but need design complicated and accurate physical construction and Circuits System, and because being limited by cell sensor dense arrangement degree, sample space resolution is still lower.(light laser and the particle beams such as Chen Shaowu, the 10th phase in 2006) adopt one with the 45o inclined-plane annular finishing tool of the High Rotation Speed of incident laser eccentric axis installation, light beam to be implemented to reflection sampling, probe unit (comprising optical attenuation sheet, optical fiber, detector etc.) array distributes along finishing tool reflected light path even circumferential, the every rotation of finishing tool one week, by the response signal of recovery and calculating detector, just obtain the spatial and temporal distributions pattern of the complete hot spot of a frame.The method makes most light propagate through finishing tool and along original optical path undisturbed, has successfully realized the on-line monitoring to high light spatial and temporal distributions, but its same system is complicated, bulky, during use, dismounting has inconvenience more, and because being limited by finishing tool mechanical separator speed, sampling time resolution is lower.Above-mentioned two kinds of laser spatial and temporal distributions measuring methods are all based on discrete cell detector, can only measure the laser beam of wavelength in special spectrum responding range, rectification difficulty after system manufacture is solidified is large, with high costs, thereby the subsequent expansion utilization of measuring equipment exists certain limitation.
Utility model content
Technical problem to be solved in the utility model is: solve the problem that above-mentioned prior art exists, and provide a kind of system the diffuse reflection type high light temporal and spatial sampling measurement mechanism based on rotating vane relatively simple, easy to use, avoid in traditional measurement method laser irradiated surface to burn because of long the causing of high light residence time, effectively improved the temporal resolution of high light sampling, the light spot image resolution of obtaining is high, mobility is good, and follow-up rectification is simple.
The technical solution adopted in the utility model is:
A kind of diffuse reflection type high light temporal and spatial sampling measurement mechanism based on rotating vane, by moveable platform, bracing frame, drive unit, light beam sampling runner, electric-control system and infrared camera form, bracing frame and electric-control system are arranged on moveable platform, drive unit and light beam sampling runner are arranged on bracing frame, drive unit comprises motor, transmission shaft and right-angle gear gearing, motor is connected integrated with bracing frame bottom, transmission shaft is hidden in the centre strut of bracing frame, transmission shaft upper end will axially be converted to horizontal direction by right-angle gear gearing and drive light beam sampling runner, described light beam sampling runner comprises multi-disc taper blade and wheel hub, scrambler is arranged on the axle sleeve of wheel hub, taper blade is symmetrical centered by wheel hub, taper blade surface uniform spraying diffuse reflection coating, the positional information of every blade of scrambler real time record, and send synchronizing signal trigger infrared camera after electric-control system amplifies, the infrared camera with corresponding spectral response range is arranged on can accept to diffuse the also place of imaging.
In technique scheme, described moveable platform comprises platform body, steering gear, lifting jack and tire, and platform body surrounding is installed 4 adjustable lifting jacks, and platform body is supported by tire, and steering gear is arranged on platform body front end.
In technique scheme, described bracing frame comprises the first rotary joint web member, the second rotary joint web member, slide rail, both sides support arm and centre strut, centre strut is fixed on the first rotary joint web member, the first rotary joint web member both sides are sleeved on the second rotary joint web member, the second rotary joint web member is fixed on the support arm of both sides, and both sides support arm is arranged on slide rail and can before and after slide rail, slides.
In technique scheme, the positional information of every described blade is by laser diode and photelectric receiver or obtain and send with shaft encoder.
In technique scheme, the rotating speed of described sampling blade is adjustable, and pixel resolution and the spectral response range of infrared camera are adjustable, and spoke position and the angle of sampling blade are adjustable.
Remarkable technique effect of the present utility model:
1, the utility model proposes a kind of online high light temporal and spatial sampling measuring method, it carries out temporal and spatial sampling by the rotating vane of low duty ratio to high light, make the most of energy of high light can see through measurement mechanism, continuation is propagated along original optical path, has avoided to a great extent in traditional measurement method laser irradiated surface because of long the burning of causing of high light residence time simultaneously.
2, many blade copped wave scanning sample methods that the utility model adopts, effectively raise the temporal resolution that high light is sampled; And can, by selecting high resolution infrared camera, obtain high-resolution light spot image.
3, the measurement mechanism the utility model proposes, manufactures and designs relatively simply, and mobility is good, easy to use; Its follow-up rectification is simple, only needs to install the infrared camera of different spectral response ranges, just can realize the high light temporal and spatial sampling of different wave length and measure.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of measurement mechanism in the utility model specific embodiment;
Fig. 2 is the utility model embodiment principle schematic;
Fig. 3 is moveable platform structural representation in embodiment;
Fig. 4 is support frame structure schematic diagram;
Fig. 5 is driving device structure partial sectional view;
Fig. 6 is light beam sampling runner assembling schematic diagram;
Fig. 7 is the hot spot sample graph of sampled measurements in specific embodiment.
The explanation of accompanying drawing mark:
1-moveable platform, 2-bracing frame, 3-drive unit, 4-light beam sampling runner, 5-electric-control system, 6-infrared camera, 7-steering gear, 8-lifting jack, 9-tire, 10-the first rotary joint web member, 11-the second rotary joint web member, 12-slide rail, 13-both sides support arm, 14-centre strut, 15-motor, 16-transmission shaft, 17-right-angle gear gearing, 18-taper blade, 19-wheel hub, 20-scrambler.
Embodiment
A kind of diffuse reflection type high light temporal and spatial sampling measurement mechanism based on rotating vane, by moveable platform, bracing frame, drive unit, light beam sampling runner, electric-control system and infrared camera form, bracing frame and electric-control system are arranged on moveable platform, drive unit and light beam sampling runner are arranged on bracing frame, drive unit comprises motor, transmission shaft and right-angle gear gearing, motor is connected integrated with bracing frame bottom, transmission shaft is hidden in the centre strut of bracing frame, transmission shaft upper end will axially be converted to horizontal direction by right-angle gear gearing and drive light beam sampling runner, described light beam sampling runner comprises multi-disc taper blade and wheel hub, scrambler is arranged on the axle sleeve of wheel hub, taper blade is symmetrical centered by wheel hub, taper blade surface uniform spraying diffuse reflection coating, the positional information of every blade of scrambler real time record, and send synchronizing signal trigger infrared camera after electric-control system amplifies, the infrared camera with corresponding spectral response range is arranged on can accept to diffuse the also place of imaging.
Above-mentioned moveable platform comprises platform body, steering gear, lifting jack and tire, and platform body surrounding is installed 4 adjustable lifting jacks, and platform body is supported by tire, and steering gear is arranged on platform body front end.
The above-mentioned bracing frame of stating comprises the first rotary joint web member, the second rotary joint web member, slide rail, both sides support arm and centre strut, centre strut is fixed on the first rotary joint web member, the first rotary joint web member both sides are sleeved on the second rotary joint web member, the second rotary joint web member is fixed on the support arm of both sides, and both sides support arm is arranged on slide rail and can before and after slide rail, slides.
The positional information of every above-mentioned blade is by laser diode and photelectric receiver or obtain and send with shaft encoder.
The rotating speed of above-mentioned sampling blade is adjustable, and pixel resolution and the spectral response range of infrared camera are adjustable, and spoke position and the angle of sampling blade are adjustable.
A kind of diffuse reflection type high light temporal and spatial sampling measuring method based on rotating vane, utilization is placed on the propeller formula high speed rotational blade in the middle of superlaser transmission path, the High energy laser beam passing through is wherein implemented to diffuse reflection, by infrared camera, receive and diffuse and imaging, thereby obtain the spatial and temporal distributions pattern of High energy laser beam, most of energy measurement of high energy laser will, through rotating vane, continue to propagate along original optical path.
The implementation procedure of the above-mentioned diffuse reflection type high light temporal and spatial sampling measuring method based on rotating vane is as follows:
Step 1: surface uniform is coated with to diffuse reflection coating, and the propeller formula blade spoke distributing that is centrosymmetric is placed in high light light path;
After step 3, blade spoke position and attitude are put and are put in place, fastening to its enforcement, to guarantee the stability of blade in the middle of High Rotation Speed process;
Again respectively in conjunction with each accompanying drawing, the utility model is described in further detail below:
The one-piece construction schematic diagram of measuring system in the utility model specific embodiment as shown in Figure 1, whole measuring system is comprised of moveable platform 1, bracing frame 2, drive unit 3, light beam sampling runner 4, electric-control system 5, infrared camera 6.
The utility model embodiment principle schematic as shown in Figure 2, the high light temporal and spatial sampling method that the utility model proposes is to utilize motor to drive propeller formula blade High Rotation Speed, high light light beam is sampled, by thering is the infrared camera of corresponding spectral response range, receive the also imaging that diffuses, thereby obtain the spatial and temporal distributions pattern of high light light beam.Device for performing measurements is loaded by a moveable platform, maneuverability.During blade rotation, the positional information of every blade of scrambler real time record, and send synchronizing signal, after ECU (Electrical Control Unit) is amplified in order to trigger infrared camera.The rotating speed that ECU (Electrical Control Unit) also has motor concurrently is simultaneously controlled reception and the decoding function with scrambler output information, and it is controlled with image acquisition, camera etc. together with control module and is integrated in an electrical control cubicles.
Moveable platform in embodiment 1, in order to integrated a whole set of measuring system, improves its mobility as shown in Figure 3.It comprises platform body, steering gear 7, lifting jack 8 and tire 9; Platform body surrounding is installed 4 adjustable lifting jacks 8 altogether, during measurement in order to support and firm measurement mechanism; Steering gear 7 can be used for the rough adjustment of measuring system putting position and angles.
Bracing frame in embodiment 2 as shown in Figure 4, in order to support drive device 3 and light beam sampling runner 4; It comprises the first rotary joint web member 10, the second rotary joint web member 11, slide rail 12, both sides support arm 13 and centre strut 14, and integral body can be slided along slide rail 12 front and back; Centre strut 14 relies on two joint connectors adjustable along different directions rotation, can realize the intense adjustment of light beam sampling runner 4 positions and attitude.
Drive unit in embodiment 3 as shown in Figure 5, it comprises motor 15, transmission shaft 16 and right-angle gear gearing 17; Motor 15 maximum speeds reach 1000rps, and be connected with bracing frame 2 bottoms integrated, with balance and counterweight; Transmission shaft 16 is hidden in the centre strut 14 of bracing frame 2, and will axially be converted to horizontal direction driving light beam sampling runner 4 by right-angle gear gearing 17.
Light beam in embodiment sampling runner 4 as shown in Figure 6, it comprises 6 taper blades 18 and wheel hub 19, is connected in axle sleeve mode with scrambler 20.For guaranteeing blade mechanism performance, its material substrate can adopt aviation duralumin, symmetrical centered by wheel hub 19, and 6 overall dutycycles of blade are 5%; Blade surface can adopt flame spraying or high velocity air spraying coating process, evenly sprays diffuse reflection coating; Scrambler 20 adopts absolute rotary encoder, in order to real time position and the velocity information of light beam sampling runner bucket to be provided, and sends synchronizing signal in order to trigger infrared camera.
Claims (5)
1. the diffuse reflection type high light temporal and spatial sampling measurement mechanism based on rotating vane, it is characterized in that: by moveable platform, bracing frame, drive unit, light beam sampling runner, electric-control system and infrared camera form, bracing frame and electric-control system are arranged on moveable platform, drive unit and light beam sampling runner are arranged on bracing frame, drive unit comprises motor, transmission shaft and right-angle gear gearing, motor is connected integrated with bracing frame bottom, transmission shaft is hidden in the centre strut of bracing frame, transmission shaft upper end will axially be converted to horizontal direction by right-angle gear gearing and drive light beam sampling runner, described light beam sampling runner comprises multi-disc taper blade and wheel hub, scrambler is arranged on the axle sleeve of wheel hub, taper blade is symmetrical centered by wheel hub, taper blade surface uniform spraying diffuse reflection coating, the positional information of every blade of scrambler real time record, and send synchronizing signal trigger infrared camera after electric-control system amplifies, the infrared camera with corresponding spectral response range is arranged on can accept to diffuse the also place of imaging.
2. the diffuse reflection type high light temporal and spatial sampling measurement mechanism based on rotating vane according to claim 1, it is characterized in that: described moveable platform comprises platform body, steering gear, lifting jack and tire, platform body surrounding is installed 4 adjustable lifting jacks, platform body is supported by tire, and steering gear is arranged on platform body front end.
3. the diffuse reflection type high light temporal and spatial sampling measurement mechanism based on rotating vane according to claim 1, it is characterized in that: described bracing frame comprises the first rotary joint web member, the second rotary joint web member, slide rail, both sides support arm and centre strut, centre strut is fixed on the first rotary joint web member, the first rotary joint web member both sides are sleeved on the second rotary joint web member, the second rotary joint web member is fixed on the support arm of both sides, and both sides support arm is arranged on slide rail and can before and after slide rail, slides.
4. the diffuse reflection type high light temporal and spatial sampling measurement mechanism based on rotating vane according to claim 1, is characterized in that: the positional information of every described blade is by laser diode and photelectric receiver or obtain and send with shaft encoder.
5. the diffuse reflection type high light temporal and spatial sampling measurement mechanism based on rotating vane according to claim 1, it is characterized in that: the rotating speed of described sampling blade is adjustable, pixel resolution and the spectral response range of infrared camera are adjustable, and spoke position and the angle of sampling blade are adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320667847.6U CN203519159U (en) | 2013-10-28 | 2013-10-28 | Diffuse reflection type highlight space-time sampling and measuring device based on rotating blade |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320667847.6U CN203519159U (en) | 2013-10-28 | 2013-10-28 | Diffuse reflection type highlight space-time sampling and measuring device based on rotating blade |
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| CN203519159U true CN203519159U (en) | 2014-04-02 |
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|---|---|---|---|
| CN201320667847.6U Withdrawn - After Issue CN203519159U (en) | 2013-10-28 | 2013-10-28 | Diffuse reflection type highlight space-time sampling and measuring device based on rotating blade |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575386A (en) * | 2013-10-28 | 2014-02-12 | 中国人民解放军国防科学技术大学 | Diffuse reflection hard light space-time sampling measuring method and device based on rotary blade |
| CN109900357A (en) * | 2019-03-22 | 2019-06-18 | 中国人民解放军国防科技大学 | Method and system for measuring large-scale laser spots of target surface |
-
2013
- 2013-10-28 CN CN201320667847.6U patent/CN203519159U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575386A (en) * | 2013-10-28 | 2014-02-12 | 中国人民解放军国防科学技术大学 | Diffuse reflection hard light space-time sampling measuring method and device based on rotary blade |
| CN103575386B (en) * | 2013-10-28 | 2015-12-02 | 中国人民解放军国防科学技术大学 | Based on diffuse reflection type high light temporal and spatial sampling measuring method and the device of rotating vane |
| CN109900357A (en) * | 2019-03-22 | 2019-06-18 | 中国人民解放军国防科技大学 | Method and system for measuring large-scale laser spots of target surface |
| CN109900357B (en) * | 2019-03-22 | 2020-12-11 | 中国人民解放军国防科技大学 | Method and system for measuring large-scale laser spots of target surface |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140402 Effective date of abandoning: 20151202 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |