CN108535735A - Range simulation device for indoor continuously adjustable - Google Patents
Range simulation device for indoor continuously adjustable Download PDFInfo
- Publication number
- CN108535735A CN108535735A CN201810329212.2A CN201810329212A CN108535735A CN 108535735 A CN108535735 A CN 108535735A CN 201810329212 A CN201810329212 A CN 201810329212A CN 108535735 A CN108535735 A CN 108535735A
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- Prior art keywords
- plane mirror
- plane
- variable
- unthreaded hole
- microscope group
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4818—Constructional features, e.g. arrangements of optical elements using optical fibres
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Electromagnetism (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
For the range simulation device of indoor continuously adjustable, the invention belongs to laser ranging technique fields, and in order to solve the problems, such as to cannot achieve a wide range of simulation in the prior art, continuity measures, which includes：Laser, collimator one, variable attenuation piece one, plane mirror one, plane mirror two, collimator two, variable attenuation piece two and the fiber coupler sequentially coaxially placed, and the optical fiber that is connect with fiber coupler；The device further includes the adjusting seat that sets gradually of reflection light direction and guide rail in plane mirror one, and composite prism and variable unthreaded hole are arranged in adjusting seat, and sliding block is installed on guide rail, and right-angle prism is arranged on sliding block；Light beam multiple reflections back and forth between right-angle prism and composite prism, variable unthreaded hole is arranged in the light path of outgoing beam, variable unthreaded hole can change the diameter of light beam, and the fiber coupler is by light beam coupling into optical fiber, and optical fiber is by beam Propagation to the reception system of range finder.
Description
Technical field
The invention belongs to laser ranging technique fields, and in particular to range simulation device, for detecting Laser Measuring indoors
Range capability away from machine.
Background technology
In recent years, laser range finder is because of its good directionality, range accuracy height, romote ranging, strong antijamming capability, good concealment
The advantages that, it is widely applied in every field.With constantly developing and developing, to laser range finder range capability
Detection is as laser range finder development, production, examination and the premise for carrying out maintenance support.
Since traditional detection method is to cause test to be tied in outdoor progress, the influence of the factors such as climate, target property
Fruit is unstable, and therefore, domestic and international researcher is devoted to the research of indoor test method.If will be in limited interior space reality
The detection of existing laser range finder range capability, then it is crucial that how to realize the simulation of distance indoors.
The method of indoor simulation distance is divided into two kinds：One is electrical delay simulation, another optical delay simulation.
2013, University of Electronic Science and Technology Zhao Meng was in its master thesis《Long range based on variable fibre delay line swashs
Ligh-ranging simulation study》In be referred to a kind of optical fiber delay technology, Fig. 1 is the rough schematic of fibre delay line in the technology,
Its working principle is that：Electric pulse is input in optical sender, the output of light pulse is controlled, by the control of photoswitch, by light
In pulse-couple to the optical fiber with delay feature, via opto-electronic receiver machine testing output signal.It transmits optical signals and postpones light
Fibre is completed, and in the process, the carrier of outer signals is light wave, and the delay medium of optical signal is optical fiber.This method lacks
Point is to need the optical fiber of several sections of different lengths as delay cell to achieve the purpose that simulated range is variable, leads to every simulation one
Section fixed range just needs to switch the optical fiber of different length, once the not optical fiber of corresponding length, it will cause waste or cause
Detection can not carry out, and also cannot achieve detection under the conditions of apart from consecutive variations, and then affect the practicability of this method.
Invention content
The present invention provides one kind to solve the problems, such as to cannot achieve a wide range of simulation, continuity measurement in the prior art
Range simulation device for indoor continuously adjustable.
Technical solution to solve above-mentioned technical problem is：
Range simulation device for indoor continuously adjustable, characterized in that the device includes：That sequentially coaxially places swashs
Light device, collimator one, variable attenuation piece one, plane mirror one, plane mirror two, collimator two, two and of variable attenuation piece
Fiber coupler, and the optical fiber that is connect with fiber coupler；Wherein, plane mirror one and optical axis setting at 45 °, plane are anti-
It penetrates mirror two and plane mirror one is set to 90 degrees；The device further includes being set gradually in the reflection light direction of plane mirror one
Adjusting seat and guide rail, composite prism and variable unthreaded hole are set in adjusting seat, sliding block, right-angle prism setting are installed on guide rail
On sliding block；Light beam multiple reflections back and forth between right-angle prism and composite prism, by changing right-angle prism relative to compound
The horizontal position of prism can adjust light path size between the two, and variable unthreaded hole is arranged in the light path of outgoing beam, can be changed
Unthreaded hole can change the diameter of light beam, and the fiber coupler is by light beam coupling into optical fiber, and optical fiber is by beam Propagation to ranging
The reception system of machine.The composite prism is formed by small right-angle prism and big right-angle prism gluing.
Range simulation device for indoor continuously adjustable, characterized in that the device includes：That sequentially coaxially places swashs
Light device, collimator one, variable attenuation piece one, plane mirror one, plane mirror two, collimator two, two and of variable attenuation piece
Fiber coupler, and the optical fiber that is connect with fiber coupler；Wherein, plane mirror one and optical axis setting at 45 °, plane are anti-
It penetrates mirror two and plane mirror one is set to 90 degrees；In the adjusting seat that the reflection light direction of plane mirror one is set gradually and lead
Rail；Plane mirror three and the installation combination of plane mirror four constitute plane microscope group one, and angle between the two is 90 °；Plane is anti-
It penetrates mirror seven and combines composition plane microscope group two with the installation of plane mirror eight, angle between the two is 90 °；Five peace of plane mirror
The installation combination of face speculum six constitutes plane microscope group three, and angle between the two is similarly 90 °；The plane microscope group three with can darkening
Hole is fixed in adjusting seat together, and the plane microscope group one is fixed on sliding block, and sliding block is mounted on guide rail；Light beam
The multiple reflections back and forth between the plane microscope group one and the plane microscope group three, by changing plane microscope group three-phase for plane
The horizontal position of microscope group one can adjust light path size between the two, can be changed unthreaded hole and be arranged on emitting light path, can be changed unthreaded hole
The diameter of light beam can be changed, the fiber coupler is by light beam coupling into optical fiber, and optical fiber is by beam Propagation to range finder
Reception system.
The beneficial effects of the invention are as follows：When solving using optical fiber simulated range, the problem of continuity measures is cannot achieve,
The effect of turning back by prism or plane mirror to light beam makes the distance that the device is simulated connect within the scope of 50~100 meters
Continuous variation, and using the optical fiber of certain length as delay cell, achieve the purpose that a wide range of, continuity measures with this.
Description of the drawings
Fig. 1 is the rough schematic of variable fibre delay line；
Fig. 2 is the vertical view of the range simulation device for indoor continuously adjustable in the embodiment of the present invention one.
Fig. 3 is the front view of the range simulation device for indoor continuously adjustable in the embodiment of the present invention one.
Fig. 4 is turn back schematic diagram of the light path in composite prism in the embodiment of the present invention one.
Fig. 5 is the vertical view of the range simulation device for indoor continuously adjustable in the embodiment of the present invention two.
Fig. 6 is the front view of the range simulation device for indoor continuously adjustable in the embodiment of the present invention two.
Fig. 7 is turn back schematic diagram of the light path between plane microscope group two and plane microscope group three in the embodiment of the present invention two.
Specific implementation mode：
Below in conjunction with attached drawing, the present invention is described further with embodiment.
Embodiment one：
As shown in Figures 2 and 3, the range simulation device in the embodiment of the present invention one for indoor continuously adjustable, should
Device includes the laser 1 sequentially coaxially placed, collimator 1, variable attenuation piece 1, plane mirror 1, plane reflection
Mirror 25, collimator 26, variable attenuation piece 27 and fiber coupler 8, and the optical fiber 9 that is connect with fiber coupler 8；Wherein,
Plane mirror 1 and optical axis setting at 45 °, plane mirror 25 and plane mirror 1 are set to 90 degrees.The device also wraps
Include variable unthreaded hole 10, adjusting seat 11, composite prism 12, right-angle prism 13, sliding block 14 and guide rail 15.In the plane mirror one
Adjusting seat 11 and guide rail 15 are set gradually on 4 reflection light direction.Composite prism 12 and variable unthreaded hole 10, which are respectively mounted, is fixed on tune
On bed rearrangement 11, the adjusting seat 11 can adjust it in the vertical direction in the case where ensureing 12 horizontal position of composite prism
Height, composite prism 12 forms by small right-angle prism 12-1 and big right-angle prism 12-2 gluings, and the installation of right-angle prism 13 is fixed
On sliding block 14, sliding block 14 is mounted on guide rail 15, light beam multiple reflections back and forth between right-angle prism 13 and composite prism 12,
Horizontal position by change right-angle prism 13 relative to composite prism 12, can adjust light path size between the two, described
Variable unthreaded hole 10 is arranged in the light path of outgoing beam, and variable unthreaded hole 10 can change the diameter of light beam, the fiber coupler 8
By light beam coupling into optical fiber 9, the range finder that is transferred to through optical fiber 9, the reception system of range finder can receive about
The information of distance change.
The course of work of the present embodiment is：
As shown in figure 3, adjusting seat 11 is first used to adjust the height of composite prism 12 downwards, keep it non-total with right-angle prism 13
Axis.As shown in Fig. 2, laser 1 is sent out on the laser light incident to collimator 1 of a certain wavelength, incident beam passes through collimator 1
It is incident on after collimation on variable attenuation piece 1, light beam energy attenuation after variable attenuation piece 1 is adjusted to safety value, then
Light beam is incident on plane mirror 1, and light beam is reflected towards right-angle prism 13 by plane mirror 1.Light beam is via right angle
After the right-angle surface I of prism 13 reflects, then successively by big right-angle prism 12-2 in the right-angle surface II of right-angle prism 13, composite prism 12
Right-angle surface III and right-angle surface IV reflect, first time propagation path can be illustrated as：I-II-III-IV, it is reflected from right-angle surface IV
Light beam 13 right-angle surface I of directive right-angle prism again, then successively by big right-angled edge in 13 right-angle surface II of right-angle prism, composite prism 12
The right-angle surface III and right-angle surface IV of mirror 12-2 reflect, and so move in circles repeatedly, until light beam enters small right-angle prism 12-1, such as
Shown in Fig. 3.After reflection via small two right-angle surfaces of right-angle prism 12-1, in addition to generating certain displacement, the light beam again along with
The parallel light path of original optical path returns, and forms outgoing beam, as shown in Figure 4.Variable unthreaded hole 10 is arranged in the light path of outgoing beam,
Adjust the unthreaded hole size that can be changed unthreaded hole 10, you can adjust outgoing beam diameter.25 pairs of outgoing beams of plane mirror carry out anti-
It penetrates, then is collimated by collimator 26, the energy of laser beam is adjusted with variable attenuation piece 27, it is made to meet the requirement of fiber coupling.
After outgoing beam is by 8 coupled into optical fibres 9 of fiber coupler, then it is transmitted to through optical fiber 9 the reception system of range finder.Finally, mobile
Sliding block 14, constantly changes the distance between right-angle prism 13 and composite prism 12, and the reception system of range finder can receive
About the continuous signal of distance change.
Embodiment two：
As shown in Figure 5 and Figure 6, it is used for the range simulation device of indoor continuously adjustable, which to include sequentially coaxially putting
The laser 1 set, collimator 1, variable attenuation piece 1, plane mirror 1, plane mirror 25, collimator 26, can
Become attenuator 27 and fiber coupler 8, and the optical fiber 9 being connect with fiber coupler 8；Wherein, plane mirror 1 and light
Axis setting at 45 °, plane mirror 25 and plane mirror 1 are set to 90 degrees；The device further includes variable unthreaded hole 10, adjustment
Seat 11, sliding block 14, guide rail 15, plane mirror 3 16, plane mirror 4 17, plane mirror 5 18, plane mirror six
19, plane mirror 7 20 and plane mirror 8 21；The plane mirror 3 16 and the plane mirror 4 17 are installed
It combines, constitutes plane microscope group one, angle between the two is 90 °.The plane mirror 7 20 and plane mirror eight
21 installations are combined, and constitute plane microscope group two, angle between the two is 90 °.The plane mirror 5 18 and described flat
The installation of face speculum 6 19 is combined, and constitutes plane microscope group three, angle between the two is 90 °.Wherein, the plane microscope group
Two are placed between plane microscope group one and plane microscope group three, and plane mirror 7 20 is with input path on plane mirror 6 19
Last a branch of reflected light setting at 45 °.
Adjusting seat 11 and guide rail 15 are set gradually in the reflection light direction of the plane mirror 1.The plane microscope group
Three are fixed on variable unthreaded hole 10 in adjusting seat 11 together, and adjusting seat 11 can ensure three horizontal position of plane microscope group
In the case of setting, its height in the vertical direction is adjusted.The plane microscope group one is fixed on sliding block 14, and sliding block 14 is pacified
On guide rail 15, light beam multiple reflections back and forth between the plane microscope group one and the plane microscope group three are flat by changing
Horizontal position of the face microscope group three relative to plane mirror group one can adjust light path size between the two, the variable unthreaded hole 10
Variable unthreaded hole 10, which is arranged in the light path of outgoing beam, can change the diameter of light beam, and the fiber coupler 8 is by light beam coupling
Into in optical fiber 9, the reception system of the range finder that is transferred to through optical fiber 9, range finder can be received about distance change
Information.
The course of work of the present embodiment is：
As shown in fig. 6, first using the adjustment plane microscope group three downwards of adjusting seat 11, make itself and one non co axial of plane microscope group.Such as Fig. 5
Shown, laser 1 sends out the laser light incident of a certain wavelength to collimator 1, and incident beam is incident after the collimation of collimator 1
To variable attenuation piece 1, light beam energy attenuation after variable attenuation piece 1 is adjusted to safety value, and then light beam is incident on flat
Face speculum 1, light beam are reflected towards plane mirror 3 16 by plane mirror 1.Light beam is via plane mirror three
It after 16 reflections, then is reflected successively by plane mirror 4 17, plane mirror 5 18 and plane mirror 6 19, first time passes
Broadcasting path can be illustrated as：A-B-C-D, the light beam directive plane mirror 3 16 again reflected from plane mirror 6 19, then according to
It is secondary to be reflected by plane mirror 4 17, plane mirror 5 18 and plane mirror 6 19, it so moves in circles repeatedly, Zhi Daoguang
Beam is to plane mirror 7 20, as shown in Figure 6.Light beam is via 8 21 successive reflex of plane mirror 7 20 and plane mirror
Afterwards, in addition to generating certain displacement, which returns along the light path parallel with original optical path again, outgoing beam is formed, such as Fig. 7 institutes
Show.Variable unthreaded hole 10 is arranged in the light path of outgoing beam, adjusts the unthreaded hole size that can be changed unthreaded hole 10, you can it is straight to adjust light beam
Diameter.25 pairs of outgoing beams of plane mirror reflect, then are collimated by collimator 26, and laser is adjusted with variable attenuation piece 27
The energy of beam makes it meet the requirement of fiber coupling.After outgoing beam is by 8 coupled into optical fibres 9 of fiber coupler, then through optical fiber 9
It is transmitted to the reception system of range finder.Finally, mobile sliding block 14, constantly change between plane microscope group one and plane microscope group three away from
From the reception system of range finder can receive the continuous signal about distance change.
Claims (3)
1. the range simulation device for indoor continuously adjustable, characterized in that the device includes：The laser sequentially coaxially placed
Device (1), collimator one (2), variable attenuation piece one (3), plane mirror one (4), plane mirror two (5), collimator two
(6), variable attenuation piece two (7) and fiber coupler (8), and the optical fiber (9) that is connect with fiber coupler (8)；Wherein, plane
Speculum one (4) and optical axis setting at 45 °, plane mirror two (5) and plane mirror one (4) are set to 90 degrees；
The device further include variable unthreaded hole (10), adjusting seat (11), composite prism (12), right-angle prism (13), sliding block (14) and
Guide rail (15) sets gradually adjusting seat (11) and guide rail (15), in adjusting seat in the reflection light direction of plane mirror one (4)
(11) composite prism (12) and variable unthreaded hole (10) are set on, sliding block (14) is installed on guide rail (15), right-angle prism (13) is set
It sets on sliding block (14)；
Light beam multiple reflections back and forth between right-angle prism (13) and composite prism (12) are opposite by changing right-angle prism (13)
Horizontal position in composite prism (12) can adjust light path size between the two, can be changed unthreaded hole (10) and be arranged in emergent light
In the light path of beam, variable unthreaded hole (10) can change the diameter of light beam, and the fiber coupler (8) is by light beam coupling into optical fiber
(9) in, optical fiber (9) is by beam Propagation to the reception system of range finder.
2. the range simulation device according to claim 1 for indoor continuously adjustable, which is characterized in that described compound
Prism (12) is formed by small right-angle prism (12-1) and big right-angle prism (12-2) gluing.
3. the range simulation device for indoor continuously adjustable, characterized in that the device includes：The laser sequentially coaxially placed
Device (1), collimator one (2), variable attenuation piece one (3), plane mirror one (4), plane mirror two (5), collimator two
(6), variable attenuation piece two (7) and fiber coupler (8), and the optical fiber (9) that is connect with fiber coupler (8)；Wherein, plane
Speculum one (4) and optical axis setting at 45 °, plane mirror two (5) and plane mirror one (4) are set to 90 degrees；
The device further includes the adjusting seat (11) that sets gradually of reflection light direction and guide rail (15) in plane mirror one (4)；
Plane mirror three (16) and plane mirror four (17) installation combination constitute plane microscope group one, and angle between the two is
90°；Plane mirror seven (20) combines with plane mirror eight (21) installation and constitutes plane microscope group two, and angle between the two is
90°；Plane mirror five (18) and plane mirror six (19) installation combination constitute plane microscope group three, and angle between the two is
90°；The plane microscope group three is fixed on variable unthreaded hole (10) in adjusting seat (11) together, and the plane microscope group one is installed
It is fixed on sliding block (14), sliding block (14) is mounted on guide rail (15)；Light beam is in the plane microscope group one and the plane microscope group
Multiple reflections can adjust the two by changing horizontal position of the plane microscope group three-phase for plane microscope group one back and forth between three
Between light path size, can be changed unthreaded hole (10) and be arranged on emitting light path, variable unthreaded hole (10) can change the diameter of light beam, institute
Fiber coupler (8) is stated by light beam coupling into optical fiber (9), optical fiber (9) is by beam Propagation to the reception system of range finder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810329212.2A CN108535735A (en) | 2018-04-13 | 2018-04-13 | Range simulation device for indoor continuously adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810329212.2A CN108535735A (en) | 2018-04-13 | 2018-04-13 | Range simulation device for indoor continuously adjustable |
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| CN108535735A true CN108535735A (en) | 2018-09-14 |
Family
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| CN201810329212.2A Pending CN108535735A (en) | 2018-04-13 | 2018-04-13 | Range simulation device for indoor continuously adjustable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111596279A (en) * | 2020-05-08 | 2020-08-28 | 山东大学 | Laser pointing stability control method |
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