CN103363926B - The pick-up unit of light screen target for velocity measurement light curtain parameter and method - Google Patents
The pick-up unit of light screen target for velocity measurement light curtain parameter and method Download PDFInfo
- Publication number
- CN103363926B CN103363926B CN201310330785.4A CN201310330785A CN103363926B CN 103363926 B CN103363926 B CN 103363926B CN 201310330785 A CN201310330785 A CN 201310330785A CN 103363926 B CN103363926 B CN 103363926B
- Authority
- CN
- China
- Prior art keywords
- laser
- light curtain
- plane
- projecting apparatus
- reference plane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The present invention relates to a kind of pick-up unit and method of light screen target for velocity measurement light curtain parameter.Between current measurement two light curtain face, distance method measuring accuracy is low, cannot ensure two light curtain face perfect parallelism, cannot realize projectile flight speed high-acruracy survey; Light curtain target in using, laser target need the flatness in periodic detection curtain face and the depth of parallelism in two acts of faces and spacing.A kind of pick-up unit of light screen target for velocity measurement light curtain parameter and method, it is characterized in that: comprise reference plane assembly and range finding reference plane assembly, range finding reference plane assembly comprises the second laser plane projector, the second plane normal laser projecting apparatus and high precision laser range finder, and the second laser plane projector, the second plane normal laser projecting apparatus and high precision laser range finder are arranged on the second precision surface plate; Reference plane assembly is contour and relatively be arranged in parallel with range finding reference plane assembly.The present invention overcomes spacing between existing measurement two target and there is the deficiencies such as comparatively big error, the light curtain face depth of parallelism cannot ensure.
Description
Technical field
The invention belongs to conventional Weapon shooting range measurment technical field, relate generally to a kind of measurement velocity of shot light curtain target light curtain parameter detection device, the specifically pick-up unit of Measuring light screen target light tentorial plane degree and two light curtain depth of parallelisms and spacing and a method, tests the speed by the depth of parallelism of two light curtain target light curtains and range for detecting.
Background technology
In the production and development of weaponry, projectile flight speed is the key parameters needing often test, is also must survey project in the examination and test of products.Speed amount is the basic parameter of national defense industry, to the precision height of this parameter measurement, directly determines the manufacture level of national defense industry.For the test of velocity of shot, current Range for conventional weapons mainly uses light curtain target, laser target and sky.As testing tool and equipment, need periodic detection and calibrating, but the device of calibrating light screen target for velocity measurement is among research always, at present still not used for equipment and the method for above-mentioned test speed measuring device detection.
Light curtain target is that a kind of district based on photoelectricity transformation principle cuts speed measuring device, when bullet is through light curtain, block the some light of light curtain, the luminous energy that receiving trap is received changes, cause photocurrent variations thus produce pulse signal, through processing of circuit, using the trigger pip of the pulse signal of generation as time-measuring gauge.When bullet is each passed through the light curtain face of two zone-block devices, time-measuring gauge records this two moment respectively, calculates the time interval of bullet through two target surfaces with this, then in conjunction with two light interlude distances, calculates the average flight speed that bullet flies over two light interludes.According to light curtain target measuring principle, the principal element affecting Projectile velocity measurements is spacing between two target surfaces and the bullet time interval through two light curtain faces, and the time interval is by time-measuring gauge record, current measuring accuracy can accomplish 0.1 μ s, so the factor of major effect bullet rate accuracy is the measuring accuracy of two light curtain interplanar distances.Light curtain target in using is by discrete and integrated two kinds of Installation Modes, to two light curtain targets of discrete installation, light curtain interplanar distance is measured mainly by utilizing tape measure to measure, measuring accuracy is low, and two light curtain face perfect parallelism cannot be ensured, measuring result error is comparatively large, finally causes Projectile velocity measurements to there is larger error; For two light curtains of integrative installation technology, its act of interplanar distance is demarcated in advance, but use for a long time, and light curtain and the mechanism that is connected can be out of shape, thus cause light curtain interplanar distance to change, and need periodic detection, pinpoints the problems and safeguard in time.Although use high precision laser range finder can meet the requirement of distance high-acruracy survey, but to two light curtains in use, light curtain is invisible invisible plane, and the benchmark of laser range finder cannot be determined, therefore, directly class high precision distance test instruments such as laser range finder cannot be used.
By above-mentioned analysis, the method measuring accuracy measuring spacing between two light curtain faces is at present low, cannot ensure two light curtain face perfect parallelism, cannot realize the high-acruracy survey to projectile flight speed; Light curtain target in using, laser target need the flatness in periodic detection curtain face and the depth of parallelism in two acts of faces and spacing, still lack effective light curtain parameter detecting means at present.
The present inventor to domestic and international patent documentation and the journal article retrieval published, not yet finds the report closely related and the same with the present invention or document with regard to theme of the present invention.
Summary of the invention
The present invention is directed to the state of the art of existing Measuring light screen target light curtain interplanar distance and the depth of parallelism, overcome prior art to measure spacing between two targets and there is the deficiencies such as comparatively big error, the light curtain face depth of parallelism cannot ensure, a kind of Measuring light screen target light curtain face pick-up unit and method are provided.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of pick-up unit of light screen target for velocity measurement light curtain parameter, and its special feature is: comprise reference plane assembly and range finding reference plane assembly,
Described reference plane assembly comprises the first laser plane projector and the first plane normal laser projecting apparatus, and the first laser plane projector and the first plane normal laser projecting apparatus are arranged on the first precision surface plate;
Described range finding reference plane assembly comprises the second laser plane projector, the second plane normal laser projecting apparatus and high precision laser range finder, and the second laser plane projector, the second plane normal laser projecting apparatus and high precision laser range finder are arranged on the second precision surface plate;
Described reference plane assembly is contour and relatively be arranged in parallel with range finding reference plane assembly;
The described first laser plane projector and the second laser plane projector are two fan-shaped word line laser instruments, the symmetrical both sides being arranged on the first plane normal laser projecting apparatus and the second plane normal laser projecting apparatus bottom respectively, described first plane normal laser projecting apparatus and the second plane normal laser projecting apparatus are a spot beam laser instrument, laser beam exit indicates Crosshatch, and the laser beam of its projection is vertical with the optical plane that the laser plane projector projects;
High precision laser range finder in described range finding reference plane assembly is arranged at the bottom of the second laser plane projector and the second plane normal laser projecting apparatus, and is positioned at immediately below the second laser plane projector; The co-planar that range finding reference field and the laser plane projector project.
Described first precision surface plate and the second precision surface plate are arranged on the first tripod and the second tripod in an eccentric manner respectively.
Described first precision surface plate and the second precision surface plate are arranged on same tripod in an eccentric manner respectively.
The detection method of above-mentioned detection device, its special feature is: comprise following operation steps:
One, by actual test placement two light curtain targets: light curtain target and light curtain target, adjust two light curtain target levels;
Two, place range finding reference plane assembly, make the laser beam of the second laser plane projector be in the center of light curtain target light curtain, the flatness of observation light curtain;
Three, place reference plane assembly, make the laser beam of the first laser plane projector be in the center of light curtain target light curtain, the flatness of observation light curtain;
Four, the depth of parallelism of two light curtains can be calculated respectively according to the projecting direction angle of the first plane normal laser projecting apparatus and the second plane normal laser projecting apparatus;
Five, regulate reference plane assembly or range finding reference plane assembly, meet the requirement of step 2 and step 3, and make the laser beam of the plane normal laser projecting apparatus of pick-up unit be incident upon the Crosshatch place of the other side, hot spot is symmetrical with Crosshatch;
Six, operate laser range finder, record result is the range of two light curtain targets.
The detection method of described pick-up unit, comprises following operation steps:
One, by actual test placement two skies: sky and sky, adjust two sky levels;
Two, place range finding reference plane assembly, the laser beam of the second laser plane projector is overlapped with the face, the canopy of the heavens of sky;
Three, place reference plane assembly, the laser beam of the first laser plane projector is overlapped with the face, the canopy of the heavens of sky;
Four, reference plane assembly or range finding reference plane assembly is regulated, meet the requirement of step 2 and step 3, and make the laser beam of the plane normal laser projecting apparatus of pick-up unit be incident upon the Crosshatch place of the other side, hot spot is symmetrical with Crosshatch, if can not be symmetrical, then regulate range finding reference plane assembly, make the laser of the second plane normal laser projecting apparatus just get to the light-emitting window of the first plane normal laser projecting apparatus, operation laser range finder, record result is the length of S line segment; Measure the length of L; According to formula
the parallelism error in two faces, the canopy of the heavens can be calculated;
If the depth of parallelism of five face, the sky canopies of the heavens within the scope of permissible error, then operates laser range finder, record result is the range of two skies.
The normal of ingenious use laser projecting apparatus projection reference plane of the present invention and plane, using the laser light curtain of projection as measuring basis, be easy to the range finding reference field providing laser range finder, be combined high precision laser range finder, overcome conventional method reference plane error large, the indeterminable deficiency of spacing, while raising accuracy of detection, simplifies operation steps.
Compared with prior art, technical advantage of the present invention is:
1. apparatus of the present invention adopt the laser plane projector, plane normal laser projecting apparatus and laser range finder carry out the depth of parallelism and distance measurement between light curtain facial plane degree, two light curtains, this device all has national specialized agency to carry out standard-measure calibration, and the result precision that apparatus of the present invention are recorded is high, reliable;
2. apparatus of the present invention make simple, processing ease;
3., while apparatus of the present invention can guarantee that two light curtain faces are parallel, accurately record the spacing between two light curtains, thus improve light screen target for velocity measurement velocity survey precision;
4. the present invention is applied widely: not only can be used for light screen target for velocity measurement, also can be used for the speed measuring device that integrated light curtain target, separate type light curtain target and sky etc. are feature with light curtain, also can be used for laser target.
Accompanying drawing explanation
Fig. 1 is apparatus of the present invention range finding reference plane modular construction schematic diagram;
Fig. 2 is apparatus of the present invention reference plane modular construction schematic diagram;
Fig. 3 is the local A direction view of Fig. 2;
Fig. 4 is that apparatus of the present invention detect light curtain target light curtain facial plane degree instrumentation plan;
Fig. 5 is that apparatus of the present invention detect light curtain target light curtain face measurement of paralleism schematic diagram;
Fig. 6 is that apparatus of the present invention detect integrated light curtain target curtain face parameter schematic diagram;
Fig. 7 is that apparatus of the present invention detect sky schematic diagram.
In figure: 1---the first laser plane projector, 2---the first plane normal laser projecting apparatus, 3---face, the canopy of the heavens, 4---the first precision surface plate, 5---the first tripod, 6---range finding reference field, 7---light curtain face, 11---the second laser plane projector, 12---the second plane normal laser projecting apparatus, 13---high precision laser range finder, 14---the second precision surface plate, 15---the second tripod, 16---laser plane projector projection plane.
Embodiment
Below in conjunction with accompanying drawing and principle of work, the present invention is described in detail.
embodiment 1: seefig. 1, Fig. 2 and Fig. 3, a kind of Measuring light screen target light curtain face pick-up unit, comprises reference plane assembly and range finding reference plane assembly.Described reference plane assembly comprises the first laser plane projector 1 and first plane normal laser projecting apparatus 2, the first laser plane projector 1 and the first plane normal laser projecting apparatus 2 and is arranged on the first precision surface plate 4;
Described range finding reference plane assembly comprises the second laser plane projector 11, second plane normal laser projecting apparatus 12 and high precision laser range finder 13, the second laser plane projector 11, second plane normal laser projecting apparatus 12 and high precision laser range finder 13 and is arranged on the second precision surface plate 14;
First precision surface plate 4 and the second precision surface plate 14 can rotate and translation, ensure to operate easily and flexibly when detecting light curtain.
Described reference plane assembly is contour and relatively be arranged in parallel with range finding reference plane assembly;
The described first laser plane projector 1 and the second laser plane projector 11 are two fan-shaped word line laser instruments, adopt commercially available line mark device, its power is at more than 50mw, ensure to be observed visually in indoor the light that laser instrument projects, they are the symmetrical both sides being arranged on the first plane normal laser projecting apparatus 2 and the second plane normal laser projecting apparatus 12 bottom respectively, described first plane normal laser projecting apparatus 2 and the second plane normal laser projecting apparatus 12 are a spot beam laser instrument, laser beam exit indicates Crosshatch, the laser beam of its projection is vertical with the optical plane that the laser plane projector 1 projects,
High precision laser range finder 13 in described range finding reference plane assembly is arranged at the bottom of the second laser plane projector 11 and the second plane normal laser projecting apparatus 12, and is positioned at immediately below the second laser plane projector 11; The co-planar that range finding reference field and the laser plane projector project.
In this embodiment, reference plane assembly is arranged on the first tripod 5 and the second tripod 15 in an eccentric manner respectively with the first precision surface plate 4 in range finding reference plane assembly and the second precision surface plate 14.
The first laser plane projector 1 and the second laser plane projector 11 of the present invention, they all adopt commercially available word line semiconductor laser, power is at more than 50mw, wavelength is 650nm, install on detection means by web member, this web member adopts the form of jackscrew and wire drawing to make the beam direction of the laser plane projector 1 adjustable, finally makes the optical plane of two word line laser instrument projections coplanar, meanwhile, this optical plane overlaps with the range finding reference field 6 on pick-up unit.
First plane normal laser projecting apparatus 2 and the second plane normal laser projecting apparatus 12 of the present invention, all adopt commercially available point-like semiconductor laser, more than power 5mw, wavelength is 650nm, and good beam quality, is very suitable for direction indication.This projector light source is installed on detection means by web member, and this web member adopts the form of jackscrew and wire drawing to have fine adjustment function, the plane orthogonal that final their beam direction of guarantee and the laser plane projector 1 project.The laser beam exit of the first plane normal laser projecting apparatus 2 and the second plane normal laser projecting apparatus 12 all indicates Crosshatch, be easy to adjust the laser that the reference plane assembly plane normal laser projecting apparatus 2 relative with two of range finding reference plane assembly project overlap completely, and then the plane perfect parallelism of accurately guarantee two the laser plane projectors 1 projections.
Precision surface plate 4 of the present invention, the translation of implementation platform, rotation and pitching function.In light curtain parameter detecting process, the pitching of microadjustment precision platform, rotation and translation, the optical plane finally making the first laser plane projector 1 project and the light curtain face center superposition of light curtain target, make reference plane assembly overlap completely with the laser beam of the second plane normal projector 12 of range finding reference plane assembly simultaneously, structure is simple, easy to use.First precision surface plate 4 and the eccentric structure mode of the second precision surface plate 14 can adapt to the different light curtain parameter measurement of light curtain target frame size, overcome the limitation cannot placing this pick-up unit because Screen's area is too small, effectively extend the range of application of apparatus of the present invention.
embodiment 2: a kind of Measuring light screen target light curtain face pick-up unit, comprises reference plane assembly and range finding reference plane assembly.Reference plane assembly also can be arranged on same tripod in an eccentric manner with the first precision surface plate 4 in range finding reference plane assembly and the second precision surface plate 14, that is, above two parts are connected on same tripod by adjustable bar structure, composition light curtain pick-up unit.
Be described in detail to the use of device in the embodiment of the present invention 1 below:
embodiment 3: when carrying out the light curtain face depth of parallelism and collimation and distance parameter to light curtain target and measuring, the method comprises the steps:
One, by actual test placement two light curtain targets, two light curtain target levels are adjusted;
Two, range finding reference plane assembly is placed, regulate the second tripod 15 and the second precision surface plate 14, the laser beam that the second laser plane projector 11 is projected is in the center in the light curtain face 7 of light curtain target, the flatness of observation light curtain, if the plane that the second laser plane projector 11 projects does not overlap with the center in light curtain face 7, then measure the length of line segment AB and BC as shown in Figure 4, according to formula ∠ BAC=arctan(BC/AB) flatness error of light curtain can be calculated;
Three, reference plane assembly is placed, regulate the first tripod 5 and the first precision surface plate 4, the laser beam that the first laser plane projector 1 is projected is in the center in the light curtain face 7 of light curtain target, the flatness of observation light curtain, if the plane that the first laser plane projector 1 projects does not overlap with the center in light curtain face 7, then can calculate the flatness error of this light curtain with step 2;
Four, regulate reference plane assembly or range finding reference plane assembly, meet the requirement of step 2 and step 3 simultaneously, the first plane normal laser projecting apparatus 2 of pick-up unit and the laser beam of the second plane normal laser projecting apparatus 12 is made to be incident upon the Crosshatch place of the other side respectively, hot spot is symmetrical with Crosshatch, if can not be symmetrical, then regulate range finding reference plane assembly as shown in Figure 5, the laser that second plane normal laser projecting apparatus 12 is projected gets to the light-emitting window of the first plane normal laser projecting apparatus 2 on reference plane assembly just, operation high precision laser range finder 13, record result is the length of S line segment, measure the length of L, according to formula
angle at last between bright dipping curtain face 7 and laser plane projector projection plane 16, i.e. the parallelism error of two light curtains,
If the flatness in five light curtain target light curtain faces 7 and the depth of parallelism are all within the scope of permissible error, then operate laser range finder 3, record result is the range of two light curtain targets.
embodiment 4: apparatus of the present invention also can be used for the light curtain face calibrating of integrated light curtain target as shown in Figure 6, and concrete steps comprise:
One, integrated light curtain target is placed by actual test, and level-off;
Two, range finding reference plane assembly is placed, regulate the second tripod 5 and the second precision surface plate 4, the laser beam that the second laser plane projector 11 is projected is in the center in the light curtain face 7 of light curtain target, the flatness of observation light curtain, if the plane that the second laser plane projector 11 projects does not overlap with the center in light curtain face 7, then measure the length of line segment AB and BC as shown in Figure 4, according to formula ∠ BAC=arctan(BC/AB) flatness error of light curtain can be calculated;
Three, reference plane assembly is placed, regulate the first tripod 5 and the first precision surface plate 4, the laser beam that the first laser plane projector 1 is projected is in the center in light curtain target light curtain face 7, the flatness of observation light curtain, if the plane that the first laser plane projector 1 projects does not overlap with the center in light curtain face 7, then can calculate the flatness error of this light curtain with step 2;
Four, regulate reference plane assembly or range finding reference plane assembly, meet the requirement of step 2 and step 3 simultaneously, the first plane normal laser projecting apparatus 2 of pick-up unit and the laser beam of the second plane normal laser projecting apparatus 12 is made to be incident upon the Crosshatch place of the other side respectively, hot spot is symmetrical with Crosshatch, if can not be symmetrical, then regulate range finding reference plane assembly as shown in Figure 5, the laser that second plane normal laser projecting apparatus 12 is projected gets to the light-emitting window of the first plane normal laser projecting apparatus 2 on reference plane assembly just, operation high precision laser range finder 13, record result is the length of S line segment, measure the length of L, according to formula
angle at last between bright dipping curtain face 7 and laser plane projector projection plane 16, i.e. the parallelism error of two light curtains,
If the flatness in five light curtain target light curtain faces 7 and the depth of parallelism are all within the scope of permissible error, then operate high precision laser range finder 13, record result is the range of two light curtain targets.
embodiment 5: as shown in Figure 7, the present invention also can be used for face, the canopy of the heavens calibrating of sky, and concrete steps comprise:
One, by actual test placement two skies: adjust two sky levels;
Two, place range finding reference plane assembly, regulate the second tripod 15 and the second precision surface plate 14, the laser beam that the second laser plane projector 11 is projected overlaps with the face, the canopy of the heavens 3 of sky;
Three, place reference plane assembly, regulate the first tripod 5 and the first precision surface plate 4, the laser beam that the first laser plane projector 1 is projected overlaps with the face, the canopy of the heavens 3 of sky;
Four, regulate reference plane assembly or range finding reference plane assembly, meet the requirement of step 2 and step 3 simultaneously, the first plane normal laser projecting apparatus 2 of pick-up unit and the laser beam of the first plane normal laser projecting apparatus 12 is made to be incident upon the Crosshatch place of the other side respectively, hot spot is symmetrical with Crosshatch, if can not be symmetrical, then regulate range finding reference plane assembly, the laser that second plane normal laser projecting apparatus 12 is projected gets to the light-emitting window of the first plane normal laser projecting apparatus 2 on reference plane assembly just, operation high precision laser range finder 3, record result is the length of S line segment, measure the length of L, according to formula
the parallelism error in two faces, the canopy of the heavens 3 can be calculated,
If the depth of parallelism of five face, the sky canopies of the heavens 3 is within the scope of permissible error, then operate high precision laser range finder 13, record result is the range of two skies.
Claims (5)
1. a pick-up unit for light screen target for velocity measurement light curtain parameter, is characterized in that: comprise reference plane assembly and range finding reference plane assembly,
Described reference plane assembly comprises the first laser plane projector (1) and the first plane normal laser projecting apparatus (2), and the first laser plane projector (1) and the first plane normal laser projecting apparatus (2) are arranged on the first precision surface plate (4);
Described range finding reference plane assembly comprises the second laser plane projector (11), the second plane normal laser projecting apparatus (12) and high precision laser range finder (13), and the second laser plane projector (11), the second plane normal laser projecting apparatus (12) and high precision laser range finder (13) are arranged on the second precision surface plate (14);
Described reference plane assembly is contour and relatively be arranged in parallel with range finding reference plane assembly;
The described first laser plane projector (1) and the second laser plane projector (11) are two fan-shaped word line laser instruments, symmetry is arranged on the both sides of the first plane normal laser projecting apparatus (2) and the second plane normal laser projecting apparatus (12) bottom respectively, described first plane normal laser projecting apparatus (2) and the second plane normal laser projecting apparatus (12) are a spot beam laser instrument, laser beam exit indicates Crosshatch, the laser beam of its projection is vertical with the optical plane that the first laser plane projector (1) projects,
High precision laser range finder (13) in described range finding reference plane assembly is arranged at the bottom of the second laser plane projector (11) and the second plane normal laser projecting apparatus (12), and is positioned at immediately below the second laser plane projector (11); The co-planar that range finding reference field and the first laser plane projector (1) project.
2. the pick-up unit of light screen target for velocity measurement light curtain parameter according to claim 1, is characterized in that: described first precision surface plate (4) and the second precision surface plate (14) are arranged on the first tripod (5) and the second tripod (15) in an eccentric manner respectively.
3. the pick-up unit of light screen target for velocity measurement light curtain parameter according to claim 1, is characterized in that: described first precision surface plate (4) and the second precision surface plate (14) are arranged on same tripod in an eccentric manner respectively.
4. the detection method of pick-up unit according to claim 1, is characterized in that: comprise following operation steps:
One, by actual test placement two light curtain targets: the first light curtain target and the second light curtain target, adjust two light curtain target levels;
Two, place range finding reference plane assembly, make the laser beam of the second laser plane projector (11) be in the center of the second light curtain target light curtain, the flatness of observation light curtain;
Three, place reference plane assembly, make the laser beam of the first laser plane projector (1) be in the center of the first light curtain target light curtain, the flatness of observation light curtain;
Four, the depth of parallelism of two light curtains can be calculated respectively according to the projecting direction angle of the first plane normal laser projecting apparatus (2) and the second plane normal laser projecting apparatus (12);
Five, reference plane assembly or range finding reference plane assembly is regulated, meet the requirement of step 2 and step 3, and making the laser beam of the first plane normal laser projecting apparatus (2) of pick-up unit be incident upon the Crosshatch place of the other side, hot spot is symmetrical with Crosshatch;
Six, operate high precision laser range finder (13), record result is the range of two light curtain targets.
5. the detection method of pick-up unit according to claim 1, is characterized in that: comprise following operation steps:
One, by actual test placement two light curtain targets: the first light curtain target and the second light curtain target, adjust two light curtain target levels;
Two, place range finding reference plane assembly, the laser beam of the second laser plane projector (11) is overlapped with the light curtain face of the second light curtain target;
Three, place reference plane assembly, the laser beam of the first laser plane projector (1) is overlapped with the light curtain face of the first light curtain target;
Four, reference plane assembly or range finding reference plane assembly is regulated, meet the requirement of step 2 and step 3, and make the laser beam of the first plane normal laser projecting apparatus (2) of pick-up unit be incident upon the Crosshatch place of the other side, hot spot is symmetrical with Crosshatch, if can not be symmetrical, then regulate range finding reference plane assembly, the laser of the second plane normal laser projecting apparatus (12) is made just to get to the light-emitting window of the first plane normal laser projecting apparatus (2), operation high precision laser range finder (13), record result is the length of S line segment; Measure the length of L; According to formula
the parallelism error in two light curtain faces can be calculated;
If the depth of parallelism in five light curtain target light curtain faces within the scope of permissible error, then operates high precision laser range finder (13), record result is the range of two light curtain targets;
S line segment represents two light curtain gap lengths measured by high precision laser range finder, L line segment represents that the laser beam when plane normal laser projecting apparatus (2) is incident upon the Crosshatch place of the other side, hot spot can not symmetrical time, before range finding reference plane assembly regulates with regulate after the variation length of high precision laser range finder (13) laser facula on reference plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310330785.4A CN103363926B (en) | 2013-08-01 | 2013-08-01 | The pick-up unit of light screen target for velocity measurement light curtain parameter and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310330785.4A CN103363926B (en) | 2013-08-01 | 2013-08-01 | The pick-up unit of light screen target for velocity measurement light curtain parameter and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103363926A CN103363926A (en) | 2013-10-23 |
| CN103363926B true CN103363926B (en) | 2016-04-06 |
Family
ID=49365816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310330785.4A Active CN103363926B (en) | 2013-08-01 | 2013-08-01 | The pick-up unit of light screen target for velocity measurement light curtain parameter and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103363926B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785064B (en) * | 2016-03-17 | 2019-01-18 | 西安工业大学 | A kind of the Projectile velocity measurements device and its measurement method of any direction incidence |
| CN105823427B (en) * | 2016-05-24 | 2018-09-28 | 湖北航天长征装备有限公司 | A kind of two-dimensional positioning system and its measurement method |
| CN106643501B (en) * | 2016-12-28 | 2019-05-21 | 中国科学院长春光学精密机械与物理研究所 | A kind of light curtain target building system and method |
| CN107064544B (en) * | 2017-04-05 | 2019-04-16 | 西安工业大学 | Sky automatic leveling luggage based on ground magnetic principle is set and method of adjustment |
| CN107560540B (en) * | 2017-08-25 | 2023-07-07 | 西安工业大学 | Sky curtain vertical target structural parameter factory calibration system and calibration method thereof |
| CN107726973B (en) * | 2017-11-24 | 2019-11-26 | 西安工业大学 | A kind of measurement establishment of coordinate system method of the side putting type measuring machine for large gear |
| CN108534699B (en) * | 2018-03-20 | 2020-01-17 | 中北大学 | Laser light curtain target distance accurate measurement device and measurement method |
| CN110806196B (en) * | 2019-11-28 | 2022-04-29 | 广东博智林机器人有限公司 | Laser level meter |
| CN111854619A (en) * | 2020-07-06 | 2020-10-30 | 青岛申晟轨道装备有限公司 | Vertical size detection device of vehicle |
| CN114162692B (en) * | 2021-12-01 | 2022-10-18 | 伟龙意程智能科技(江苏)有限公司 | Online automatic detection system of elevator light curtain |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2634429Y (en) * | 2003-06-10 | 2004-08-18 | 浙江大学 | Cross laser centering device |
| CN202649229U (en) * | 2012-06-05 | 2013-01-02 | 西安工业大学 | Laser reflection-type large-target surface velocity-measurement light-screen target |
| CN102944698A (en) * | 2012-11-29 | 2013-02-27 | 西安工业大学 | Sky-screen target light curtain parameter calibrating device and method |
| CN203364778U (en) * | 2013-08-01 | 2013-12-25 | 西安工业大学 | Device for detecting light screen parameters of velocity measurement light screen target |
-
2013
- 2013-08-01 CN CN201310330785.4A patent/CN103363926B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2634429Y (en) * | 2003-06-10 | 2004-08-18 | 浙江大学 | Cross laser centering device |
| CN202649229U (en) * | 2012-06-05 | 2013-01-02 | 西安工业大学 | Laser reflection-type large-target surface velocity-measurement light-screen target |
| CN102944698A (en) * | 2012-11-29 | 2013-02-27 | 西安工业大学 | Sky-screen target light curtain parameter calibrating device and method |
| CN203364778U (en) * | 2013-08-01 | 2013-12-25 | 西安工业大学 | Device for detecting light screen parameters of velocity measurement light screen target |
Non-Patent Citations (1)
| Title |
|---|
| 双缝光幕靶的靶距精确测量方法和装置;安莹等;《西安工业大学学报》;20071231;第27卷(第6期);第515-518页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103363926A (en) | 2013-10-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103363926B (en) | The pick-up unit of light screen target for velocity measurement light curtain parameter and method | |
| CN101836077B (en) | Distance-measuring method for device projecting reference line, and such device | |
| CN101403592B (en) | Transmitting-receiving integrated light screen target apparatus and its test method | |
| CN107560540B (en) | Sky curtain vertical target structural parameter factory calibration system and calibration method thereof | |
| CN108287338A (en) | Laser range finder verification system based on error cancellation principle and its calibration method | |
| CN102636788B (en) | Ranging method and system for tracking laser point | |
| CN104316443A (en) | PM2.5 concentration monitoring method based on CCD back scattering | |
| CN103698256A (en) | Method and device for on-line measurement of liquid spraying through full-field rainbow | |
| CN204854657U (en) | Mark many optical axises optical system parallelism of optical axes's device | |
| CN101819146B (en) | Method and device for measuring steam humidity and diameter of water droplet of non-contact type turbine | |
| CN104198443A (en) | Visibility calibration instrument, calibration system and product machine calibration method based on calibration system | |
| CN105510000B (en) | Optical laying demarcation detection method | |
| CN203053678U (en) | Detection calibration apparatus for multi-optical axis dynamic consistency | |
| CN202649229U (en) | Laser reflection-type large-target surface velocity-measurement light-screen target | |
| CN109470177A (en) | Three-dimensional perspective measurement method and device based on double grating | |
| CN203364778U (en) | Device for detecting light screen parameters of velocity measurement light screen target | |
| CN106247989B (en) | A kind of guide rail rolling angle field calibration and measuring device and method | |
| CN109654953B (en) | Method for measuring landing coordinates and speed of large-target-surface projectile | |
| CN206235324U (en) | A kind of construction engineering quality detection chi | |
| CN102590092A (en) | Absorption optical path lengthening device and method for laser absorption spectroscopy technology | |
| CN207675937U (en) | Laser range finder verification system based on error cancellation principle | |
| CN106814368A (en) | Pill impacting coordinate measuring device and measuring method based on laser distance measuring principle | |
| CN108709510A (en) | A kind of laser target miss-distance of projectile measurement calibration method based on pulse shadowgraph imaging | |
| CN109579744A (en) | Trailing type three-dimensional photoelectric auto-collimation method and apparatus based on grating | |
| CN205352314U (en) | Novel laser range finder detects device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |