CN203364778U - Device for detecting light screen parameters of velocity measurement light screen target - Google Patents
Device for detecting light screen parameters of velocity measurement light screen target Download PDFInfo
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- CN203364778U CN203364778U CN 201320466802 CN201320466802U CN203364778U CN 203364778 U CN203364778 U CN 203364778U CN 201320466802 CN201320466802 CN 201320466802 CN 201320466802 U CN201320466802 U CN 201320466802U CN 203364778 U CN203364778 U CN 203364778U
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Abstract
The utility model relates to a device for detecting light screen parameters of a velocity measurement light screen target. At present, methods for measuring an interval between two light screen surfaces are low in measurement accuracy, strict parallelism of the two light screen surfaces cannot be ensured, and high-accuracy measurement of the flying velocity of a bullet cannot be realized; and light screen targets and laser targets in use need to be detected regularly in terms of the flatness of screen surfaces and the parallelism of and the interval between two screen surfaces. The device for detecting the light screen parameters of the velocity measurement light screen target is characterized in that the device comprises a reference plane assembly and a range finding reference plane assembly, wherein the range finding reference plane assembly comprises a second laser plane projector, a second plane normal laser projector and a high-accuracy laser range finder, the second laser plane projector, the second plane normal laser projector and the high-accuracy laser range finder are arranged on a second precision platform, and the reference plane assembly and the range finding reference plane assemble are the same in height and are parallelly arranged relative to each other. The device for detecting the light screen parameters of the velocity measurement light screen target overcomes the defects in the prior art that relatively big errors exist in measurement of the interval between two targets, the parallelism of the light screen surfaces cannot be ensured, etc.
Description
Technical field
The utility model belongs to conventional Weapon shooting range measurment technical field, relate generally to light curtain target light curtain parameter detection device for a kind of measurement velocity of shot, a kind of pick-up unit of measuring light curtain target light tentorial plane degree and two light curtain depth of parallelisms and spacing specifically, for detection of the depth of parallelism and the range that test the speed with two light curtain target light curtains.
Background technology
In the production of weaponry and development, projectile flight speed is to need the often key parameters of test, is also must survey project in the examination and test of products.The 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, Range for conventional weapons is mainly used light curtain target, laser target and sky at present.As testing tool and equipment, need regularly to detect and calibrating, but the device of calibrating light screen target for velocity measurement is always among research, the equipment and the method that still for above-mentioned test speed measuring device, do not detect at present.
Light curtain target is that a kind of district based on photoelectricity transformation principle cuts speed measuring device, when bullet passes the light curtain, blocked the part light of light curtain, the luminous energy that receiving trap receives is changed, cause that thereby photocurrent variations produces pulse signal, through processing of circuit, the trigger pip using the pulse signal of generation as time-measuring gauge.When bullet passes the light curtain face of two zone-block devices respectively, time-measuring gauge records respectively this two moment, with this, calculates the time interval of bullet through two target surfaces, then, in conjunction with two light interlude distances, calculates the average flight speed that bullet flies over two light interludes.Known according to the light curtain target measuring principle, affect principal element that velocity of shot measures and be spacing between two target surfaces and the bullet time interval through two light curtain faces, and the time interval is recorded by time-measuring gauge, measuring accuracy can be accomplished 0.1 μ s at present, so the measuring accuracy that the factor of major effect bullet rate accuracy is two light curtain interplanar distances.Light curtain target in use is by discrete and integrated two kinds of Installation Modes, two light curtain targets to discrete installation, it is mainly by utilizing tape measure to be measured that light curtain interplanar distance is measured, measuring accuracy is low, and can't guarantee that two light curtain faces are strictly parallel, measuring result error is larger, finally causes velocity of shot to be measured and has larger error; For two light curtains of integrative installation technology, its act of interplanar distance is to demarcate in advance, but long-time the use, light curtain and the mechanism that is connected can be out of shape, thereby cause that light curtain interplanar distance changes, and need to regularly detect, and pinpoint the problems and safeguard in time.Although use the high-precision laser range-finding instrument can meet apart from the high-acruracy survey requirement, but to two light curtains in using, the light curtain is invisible invisible plane, and the benchmark of laser range finder can't be determined, therefore, can't directly use class high precision distance test instruments such as laser range finder.
By above-mentioned analysis, the method measuring accuracy of measuring at present spacing between two light curtain faces is low, can't guarantee that two light curtain faces are strictly parallel, can't realize the high-acruracy survey to projectile flight speed; Light curtain target in use, laser target need regularly to detect the flatness of curtain face and the depth of parallelism and the spacing of two acts of faces, still lack at present effective light curtain parameter detecting means.
The inventor to domestic and international patent documentation and the journal article retrieval of publishing, not yet finds report or the document closely related and the same with the utility model with regard to theme of the present utility model.
Summary of the invention
The utility model is for the existing state of the art of measuring light curtain target light curtain interplanar distance and the depth of parallelism, overcome prior art and measure between two targets spacing and have the deficiencies such as larger error, the light curtain face depth of parallelism can't guarantee, a kind of measurement light curtain target light curtain face pick-up unit is provided.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts 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-finding instrument, and the second laser plane projector, the second plane normal laser projecting apparatus and high-precision laser range-finding instrument 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, symmetry is arranged on the both sides of the first plane normal laser projecting apparatus and the second plane normal laser projecting apparatus bottom respectively, described the first plane normal laser projecting apparatus and the second plane normal laser projecting apparatus are a point-like light beam laser, the laser beam exit indicates the cross delineation, and the laser beam of its projection is vertical with the optical plane of laser plane projector projection;
High-precision laser range-finding instrument 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 be positioned at the second laser plane projector under; The plane of range finding reference field and the projection of the laser plane projector is coplanar.
Described the first precision surface plate and the second precision surface plate are separately positioned on the first tripod and the second tripod in eccentric mode.
Described the first precision surface plate and the second precision surface plate are arranged on same tripod in eccentric mode.
The normal on the utility model ingenious use laser projecting apparatus projection reference plane and plane, using the laser light curtain of projection as measuring basis, be easy to provide the range finding reference field of laser range finder, be combined with the high-precision laser range-finding instrument, overcome conventional method reference plane error large, the indeterminable deficiency of spacing, when improving accuracy of detection, simplified operation steps.
Compared with prior art, technical advantage of the present utility model is:
1. the utility model device adopts 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 precision as a result that makes the utility model device record is high, reliable;
2. the utility model device is made simple, processing ease;
3. the utility model device can guarantee that two light curtain faces parallel the time, accurately record two spacings between the light curtain, thereby improved light screen target for velocity measurement velocity survey precision;
4. the utility model is applied widely: not only can be used for light screen target for velocity measurement, also can be used for integrated light curtain target, separate type light curtain target and sky etc. and take the speed measuring device that the light curtain is feature, also can be used for laser target.
The accompanying drawing explanation
Fig. 1 is the utility model device range finding reference plane modular construction schematic diagram;
Fig. 2 is the utility model device reference plane modular construction schematic diagram;
Fig. 3 is that the local A of Fig. 2 is to view;
Fig. 4 is that the utility model device detects light curtain target light curtain facial plane degree instrumentation plan;
Fig. 5 is that the utility model device detects light curtain target light curtain face measurement of paralleism schematic diagram;
Fig. 6 is that the utility model device detects integrated light curtain target curtain face parameter schematic diagram;
Fig. 7 is that the utility model device detects the sky schematic diagram.
In figure: 1---the first laser plane projector, 2---the first plane normal laser projecting apparatus, 3---canopy of the heavens face, 4---the first precision surface plate, 5---the first tripod, 6---the range finding reference field, 7---light curtain face, 11---the second laser plane projector, 12---the second plane normal laser projecting apparatus, 13---the high-precision laser range-finding instrument, 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 utility model is elaborated.
embodiment 1: referring tofig. 1, Fig. 2 and Fig. 3, a kind of measurement light curtain target light curtain face pick-up unit, comprise reference plane assembly and range finding reference plane assembly.Described reference plane assembly comprises that the first laser plane projector 1 and first plane normal laser projecting apparatus 2, the first laser plane projectors 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 that the second laser plane projector 11, the second plane normal laser projecting apparatus 12 and high-precision laser range-finding instrument 13, the second laser plane projectors 11, the second plane normal laser projecting apparatus 12 and high-precision laser range-finding instrument 13 are arranged on the second precision surface plate 14;
The first precision surface plate 4 and the second precision surface plate 14 can rotate and translation, guarantee to operate easily and flexibly when detecting the 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 more than 50mw, guarantee to be observed visually indoor the light that laser instrument projects, they are the symmetrical both sides that are arranged on the first plane normal laser projecting apparatus 2 and the second plane normal laser projecting apparatus 12 bottoms respectively, described the first plane normal laser projecting apparatus 2 and the second plane normal laser projecting apparatus 12 are a point-like light beam laser, the laser beam exit indicates the cross delineation, the laser beam of its projection is vertical with the optical plane of the laser plane projector 1 projection,
High-precision laser range-finding instrument 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 be positioned at the second laser plane projector 11 under; The plane of range finding reference field and the projection of the laser plane projector is coplanar.
In this embodiment, the reference plane assembly is arranged on respectively on the first tripod 5 and the second tripod 15 in eccentric mode with the first precision surface plate 4 and the second precision surface plate 14 in range finding reference plane assembly.
The first laser plane projector 1 of the present utility model and the second laser plane projector 11, they all adopt commercially available word line semiconductor laser, power is more than 50mw, wavelength is 650nm, by web member, be arranged on pick-up unit, 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, simultaneously, this optical plane overlaps with the range finding reference field 6 on pick-up unit.
The first plane normal laser projecting apparatus 2 of the present utility model and the second plane normal laser projecting apparatus 12, all adopt commercially available point-like semiconductor laser, and more than power 5mw, wavelength is 650nm, and good beam quality is suitable for direction indication very much.This projector light source is arranged on pick-up unit by web member, and this web member adopts the form of jackscrew and wire drawing to have fine adjustment function, finally guarantees that their beam direction is vertical with the plane of the laser plane projector 1 projection.The laser beam exit of the first plane normal laser projecting apparatus 2 and the second plane normal laser projecting apparatus 12 all indicates the cross delineation, the laser that is easy to adjust plane normal laser projecting apparatus 2 projections that the reference plane assembly is relative with two of range finding reference plane assembly overlaps fully, and then accurately guarantees that the plane of two laser plane projectors, 1 projection is strictly parallel.
embodiment 2: a kind of measurement light curtain target light curtain face pick-up unit comprises reference plane assembly and range finding reference plane assembly.The reference plane assembly also can be arranged in eccentric mode on same tripod with the first precision surface plate 4 and the second precision surface plate 14 in range finding reference plane assembly, that is to say, above two parts are connected on same tripod by adjustable bar structure, form light curtain pick-up unit.
Below will the use of device in the utility model embodiment 1 be described in detail:
embodiment 3: when light curtain target being carried out to the light curtain face depth of parallelism and collimation and distance parameter measurement, the method comprises the steps:
One, place two light curtain targets by actual test, adjust two light curtain target levels;
Two, place range finding reference plane assembly, regulate the second tripod 15 and the second precision surface plate 14, make the center of laser beam in the light curtain face 7 of light curtain target of the second laser plane projector 11 projections, the flatness of observation light curtain, if the plane of the second laser plane projector 11 projections does not overlap with the center of light curtain face 7, measure as shown in Figure 4 the length of line segment AB and BC, according to formula ∠ BAC=arctan(BC/AB) can calculate the flatness error of light curtain;
Three, place the reference plane assembly, regulate the first tripod 5 and the first precision surface plate 4, make the center of laser beam in the light curtain face 7 of light curtain target of the first laser plane projector 1 projection, the flatness of observation light curtain, if the plane of the first laser plane projector 1 projection does not overlap with the center of light curtain face 7, with step 2, can calculate the flatness error of this light curtain;
Four, regulate reference plane assembly or range finding reference plane assembly, meet the requirement of step 2 and step 3 simultaneously, make the laser beam of the first plane normal laser projecting apparatus 2 of pick-up unit and the second plane normal laser projecting apparatus 12 be incident upon respectively the other side's cross delineation place, hot spot is symmetrical with the cross delineation, if can not be symmetrical, regulate as shown in Figure 5 range finding reference plane assembly, the laser that the second plane normal laser projecting apparatus 12 is projected is got to the light-emitting window of the first plane normal laser projecting apparatus 2 on the reference plane assembly just, operation high-precision laser range-finding instrument 13, record the length that result is the S line segment, measure the length of L, according to formula
can be regarded as the angle 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 of five light curtain target light curtain faces 7 and the depth of parallelism all, in the permissible error scope, operate laser range finder 3, record the range that result is two light curtain targets.
embodiment 4: the utility model device 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, place integrated light curtain target by actual test, and level-off;
Two, place range finding reference plane assembly, regulate the second tripod 5 and the second precision surface plate 4, make the center of laser beam in the light curtain face 7 of light curtain target of the second laser plane projector 11 projections, the flatness of observation light curtain, if the plane of the second laser plane projector 11 projections does not overlap with the center of light curtain face 7, measure as shown in Figure 4 the length of line segment AB and BC, according to formula ∠ BAC=arctan(BC/AB) can calculate the flatness error of light curtain;
Three, place the reference plane assembly, regulate the first tripod 5 and the first precision surface plate 4, make the center of laser beam in light curtain target light curtain face 7 of the first laser plane projector 1 projection, the flatness of observation light curtain, if the plane of the first laser plane projector 1 projection does not overlap with the center of light curtain face 7, with step 2, can calculate the flatness error of this light curtain;
Four, regulate reference plane assembly or range finding reference plane assembly, meet the requirement of step 2 and step 3 simultaneously, make the laser beam of the first plane normal laser projecting apparatus 2 of pick-up unit and the second plane normal laser projecting apparatus 12 be incident upon respectively the other side's cross delineation place, hot spot is symmetrical with the cross delineation, if can not be symmetrical, regulate as shown in Figure 5 range finding reference plane assembly, the laser that the second plane normal laser projecting apparatus 12 is projected is got to the light-emitting window of the first plane normal laser projecting apparatus 2 on the reference plane assembly just, operation high-precision laser range-finding instrument 13, record the length that result is the S line segment, measure the length of L, according to formula
can be regarded as the angle 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 of five light curtain target light curtain faces 7 and the depth of parallelism all, in the permissible error scope, operate high-precision laser range-finding instrument 13, record the range that result is two light curtain targets.
embodiment 5: as shown in Figure 7, the utility model also can be used for the canopy of the heavens face calibrating of sky, and concrete steps comprise:
One, place two skies by actual test: 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 of the second laser plane projector 11 projections is overlapped with the canopy of the heavens face 3 of sky;
Three, place the reference plane assembly, regulate the first tripod 5 and the first precision surface plate 4, the laser beam of the first laser plane projector 1 projection is overlapped with the canopy of the heavens face 3 of sky;
Four, regulate reference plane assembly or range finding reference plane assembly, meet the requirement of step 2 and step 3 simultaneously, make the laser beam of the first plane normal laser projecting apparatus 2 of pick-up unit and the first plane normal laser projecting apparatus 12 be incident upon respectively the other side's cross delineation place, hot spot is symmetrical with the cross delineation, if can not be symmetrical, regulate range finding reference plane assembly, the laser that the second plane normal laser projecting apparatus 12 is projected is got to the light-emitting window of the first plane normal laser projecting apparatus 2 on the reference plane assembly just, operation high-precision laser range-finding instrument 3, record the length that result is the S line segment, measure the length of L, according to formula
can calculate the parallelism error of two canopy of the heavens faces 3,
If the depth of parallelism of five sky canopy of the heavens faces 3, in the permissible error scope, operates high-precision laser range-finding instrument 13, record the range that result is two skies.
Claims (3)
1. the pick-up unit of a 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-finding instrument (13), and the second laser plane projector (11), the second plane normal laser projecting apparatus (12) and high-precision laser range-finding instrument (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 the first plane normal laser projecting apparatus (2) and the second plane normal laser projecting apparatus (12) are a point-like light beam laser, the laser beam exit indicates the cross delineation, and the laser beam of its projection is vertical with the optical plane of the laser plane projector (1) projection;
High-precision laser range-finding instrument (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 be positioned at the second laser plane projector (11) under; The plane of range finding reference field and the projection of the laser plane projector is coplanar.
2. the pick-up unit of light screen target for velocity measurement light curtain parameter according to claim 1, it is characterized in that: described the first precision surface plate (4) and the second precision surface plate (14) are separately positioned on the first tripod (5) and the second tripod (15) in eccentric mode.
3. the pick-up unit of light screen target for velocity measurement light curtain parameter according to claim 1, it is characterized in that: described the first precision surface plate (4) and the second precision surface plate (14) are arranged on same tripod in eccentric mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201320466802 CN203364778U (en) | 2013-08-01 | 2013-08-01 | Device for detecting light screen parameters of velocity measurement light screen target |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320466802 CN203364778U (en) | 2013-08-01 | 2013-08-01 | Device for detecting light screen parameters of velocity measurement light screen target |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363926A (en) * | 2013-08-01 | 2013-10-23 | 西安工业大学 | Device and method for detecting light-screen parameters of light-screen targets |
| CN110986684A (en) * | 2019-12-17 | 2020-04-10 | 速得尔科技（北京）有限公司 | Light curtain target frame |
-
2013
- 2013-08-01 CN CN 201320466802 patent/CN203364778U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363926A (en) * | 2013-08-01 | 2013-10-23 | 西安工业大学 | Device and method for detecting light-screen parameters of light-screen targets |
| CN103363926B (en) * | 2013-08-01 | 2016-04-06 | 西安工业大学 | The pick-up unit of light screen target for velocity measurement light curtain parameter and method |
| CN110986684A (en) * | 2019-12-17 | 2020-04-10 | 速得尔科技（北京）有限公司 | Light curtain target frame |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131225 Effective date of abandoning: 20160406 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |