CN103884316B - A kind of self-alignment double laser level altimeter - Google Patents
A kind of self-alignment double laser level altimeter Download PDFInfo
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- CN103884316B CN103884316B CN201410142355.4A CN201410142355A CN103884316B CN 103884316 B CN103884316 B CN 103884316B CN 201410142355 A CN201410142355 A CN 201410142355A CN 103884316 B CN103884316 B CN 103884316B
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- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 230000005484 gravity Effects 0.000 claims abstract description 34
- 230000001105 regulatory effect Effects 0.000 claims abstract description 23
- 238000005259 measurement Methods 0.000 claims description 28
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- 238000012360 testing method Methods 0.000 claims description 6
- 230000007306 turnover Effects 0.000 claims description 6
- 238000007665 sagging Methods 0.000 claims description 5
- 206010020718 hyperplasia Diseases 0.000 abstract description 2
- 230000002390 hyperplastic effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
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- 230000003321 amplification Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
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- 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
- G01S17/46—Indirect determination of position data
- G01S17/48—Active triangulation systems, i.e. using the transmission and reflection of electromagnetic waves other than radio waves
Abstract
The invention provides a kind of self-alignment double laser level altimeter, comprise pedestal, adjustable seat leg, sill, middle cross beam, entablature, vertically rule, horizontal laser light stadimeter, vertically generating laser, 45 degree of semi-transparent semi-reflecting lens, 45 degree of catoptrons, hang draw ring, center of gravity regulating block, sill driving mechanism and middle cross beam driving mechanism; Horizontal laser light stadimeter and 45 degree of semi-transparent semi-reflecting lens are all fixedly mounted on sill, and 45 degree of catoptrons are arranged on middle cross beam by angle rotating mechanism, sill and middle cross beam are provided with beam orifice, pedestal is provided with target center; The laser beam exported when the locus of vertical generating laser, beam orifice and target center should make vertical generating laser naturally droop, drops on target center through two beam orifices successively.The present invention can according to the size of testee select flexibly hyperplastic distance from, make it unrestricted to measuring distance and testee height, can take into account and geographically survey high and object survey is high, a tractor serves several purposes.
Description
Technical field
The invention belongs to laser measurement field, be specifically related to a kind of self-alignment double laser level altimeter.
Background technology
National economy is a lot of for measurement demand highly in producing, and arrives greatly geological exploration, building height measurement or mountain range relative height and measures, and can be called that geography is surveyed high; Little of height detection, Mechanical Parts Size inspection etc., can be called that object is surveyed high.
Had a lot about the measuring method of height or instrument, on the building site of some construction projects, it is transit that technician carries out the instrument that geographical survey high workload uses.Transit is made up of telescope, horizontal dial, altitude circle, level, pedestal etc.During measurement, transit is placed on tripod, with plumb bob or optical plummet, centre is aimed on the survey station point of ground, with level, instrument is allocated, use collimation telescope measurement target, measure horizontal angle and vertical angle with horizontal dial and altitude circle.
Carrying out object and survey height mainly height gauge, is be positioned over instrument platform carrying out single shaft measurement, ideally granite platform.Also having a kind of is laser range finder based on principle of triangulation, by indirectly realizing the measurement to object height to the measurement at relevant inclination angle and auxiliary distance value.Application number be 201010256289.5 patent measure elevation angle when observing testee peak by angle gauge on altimeter, then measure the horizontal range of testee peak to observation station, thus realize elevation carrection by triangle relation.
Comprehensive above-described altimeter device and method, exist following not enough:
1, because measuring principle is different, range is different, measuring accuracy grade is different, existing altimeter device is all specialized equipment, can not take into account geographically to survey high and object survey is high.
2, existing altimeter device, measuring accuracy depends on the levelness of measurement datum, and surveying instrument needs to be placed on stable, smooth reference surface, and the measurement of levelness generally relies on and carries or the air-bubble level of outside, horizontal detection precision is not high, regulates inconvenient.
3, existing altimeter device, for the height of the characteristic portion such as groove, hole on the part such as die, die cavity, because probe is difficult to stretch into, cannot measure.
4, the measuring process of transit needs multiple person cooperational, complicated operation; The measuring process of height gauge is contact type measurement, and very large with the empirical relationship of operator, the repeatability of measurement result is poor.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, provide a kind of self-alignment double laser level altimeter simple to operation; This self-alignment double laser level altimeter is aimed at and magnetic plummet mechanism by photoelectricity, makes the levelness of self regulate very convenient, accurately reliable; Unrestricted to testee size, can take into account and geographically survey high and object survey is high, and the position that the conventional levels altimeters such as various groove, hole cannot measure can be measured; Because it is based on optical measurement principle, singlely can to operate, can measure under various light environment, measuring accuracy is higher than existing level altimeter.
The present invention is achieved through the following technical solutions:
A kind of self-alignment double laser level altimeter, comprises pedestal, multiple adjustable seat leg, sill, middle cross beam, entablature, vertically rule, horizontal laser light stadimeter, vertically generating laser, 45 degree of semi-transparent semi-reflecting lens, 45 degree of catoptrons, hangs draw ring, center of gravity regulating block, sill driving mechanism and middle cross beam driving mechanism;
All and plane-parallel, multiple adjustable seat legs are fixedly mounted on the lower surface of pedestal, for height and the levelness of adjusting base for the upper and lower surface of described pedestal;
Described center of gravity regulating block is connected with the lower surface of pedestal by magnetic attraction, and the relative position of center of gravity regulating block and pedestal can regulate arbitrarily manually or automatically;
Described vertical rule is vertically arranged on pedestal, and it is marked with scale, for measuring sill and the middle cross beam difference in height relative to pedestal upper surface;
Described sill and middle cross beam are and are horizontally disposed with, that is vertical with vertical gravity direction, and described sill is arranged on pedestal by sill driving mechanism, and vertical direction can be driven to move up and down by sill driving mechanism; Described middle cross beam is arranged on pedestal by middle cross beam driving mechanism, and vertical direction can be driven to move up and down by middle cross beam driving mechanism;
Described horizontal laser light stadimeter and 45 degree of semi-transparent semi-reflecting lens are all fixedly mounted on sill, the laser beam that its installation position should make horizontal laser light stadimeter launch incides 45 degree of semi-transparent semi-reflecting lens in the horizontal direction, after the turnover of 45 degree of semi-transparent semi-reflecting lens, vertically enter 45 degree of catoptrons; Described 45 degree of catoptrons are arranged on middle cross beam by an angle rotating mechanism, and described angle rotating mechanism makes the angle of the minute surface of 45 degree of catoptrons and surface level can regulate in the scope of degree to degree;
A laser beam part for the horizontal direction that described horizontal laser light stadimeter is launched is through 45 degree of semi-transparent semi-reflecting lens reflections, and another part is through 45 degree of semi-transparent semi-reflecting lens transmissions; Reflection lasering beam impinges perpendicularly on 45 degree of catoptrons, after 45 degree of catoptron turnovers, exports target measurement point to; Transmission laser bundle glancing incidence is on object under test;
Described entablature supports and is arranged on pedestal, and is positioned at the top of middle cross beam, described in hang the upper surface that draw ring is fixedly connected on entablature, use during for hanging measurement; Described vertical generating laser is connected to the inside surface of entablature by flexible lanyard; Described sill and middle cross beam are provided with beam orifice, and the upper surface of pedestal is provided with target center; The locus of described vertical generating laser, beam orifice and target center should make vertical generating laser naturally vertical sagging time the laser beam that exports, drop on the target center of pedestal through two beam orifices successively.
Preferably, described sill driving mechanism and middle cross beam driving mechanism are separately positioned on the both sides of pedestal;
Described sill driving mechanism comprises the first guide pillar, the first rocking bar, the first worm gear, the first worm screw, the first leading screw and the first screw slider, and described middle cross beam driving mechanism comprises the second guide pillar, the second rocking bar, the second worm gear, the second worm screw, the second leading screw and the second screw slider;
First guide pillar is vertically arranged on the left side of pedestal, and the second guide pillar is vertically arranged on the right side of pedestal; The left and right sides of described sill is fastenedly connected with two sliding blocks respectively, two sliding blocks respectively slip be arranged on the first guide pillar and the second guide pillar; The left and right sides of described middle cross beam is fastenedly connected with two top shoes respectively, two top shoes respectively slip be arranged on the first guide pillar and the second guide pillar;
First rocking bar is connected with the first worm screw, rotates for driving the first worm screw; Described first worm gear and the first worm screw form Worm and worm-wheel gearing, and described first worm gear set is contained in one end of the first leading screw, and with the first lead screw linkage, the first screw slider screws in the first leading screw; The sliding block in the first screw slider and left side is fixed together, and the top shoe inside in left side is provided with a through hole, and the first leading screw, through after the through hole on the top shoe in left side, is arranged on the first guide pillar by bearing;
Second rocking bar is connected with the second worm screw, rotates for driving the second worm screw; Described second worm gear and the second worm screw form Worm and worm-wheel gearing, and described second worm gear set is contained in two ends of the second leading screw, with the second lead screw linkage; Second screw slider screws in the second leading screw; The top shoe on the second screw slider and right side is fixed together, and the sliding block inside on right side is provided with a through hole, and the second leading screw through the through hole on the sliding block on right side, and is arranged on the second guide pillar by bearing.
Preferably, described angle rotating mechanism comprises fixed head, swivel mount, Digit Display Angle Ruler, arc chute, traveller and locking member, and described fixed head and arc chute are all fixedly mounted on middle cross beam, and described 45 degree of catoptrons are arranged on swivel mount;
Described swivel mount is connected with fixed head by articulated manner, and swivel mount can be rotated around pin joint, its center of rotation axis and plane-parallel; Described Digit Display Angle Ruler is arranged between fixed head and swivel mount, for measuring and showing the corner of described swivel mount;
Described traveller is fixedly mounted on the upper end, side of swivel mount, and through arc chute, is connected with locking member; The installation site of described arc chute and track length should make the angle of the minute surface of 45 degree of catoptrons and surface level can regulate in the scope of degree to degree.
Preferably, the lower surface of described pedestal is provided with magnetic sheet, center of gravity regulating block is fixedly connected with a magnetic block, is realized the connection of center of gravity regulating block and pedestal by the suction of magnetic sheet and magnetic block.
The present invention has following beneficial effect:
1, self-alignment double laser level altimeter of the present invention, have employed directivity and the laser beam of centrality fabulous (angle of divergence is minimum) as measuring sonde, and the amplification of bevel protractor diagonal angle length of side in long distance situation, can according to the size of testee select flexibly hyperplastic distance from, make its to measuring distance and testee height unrestricted, can take into account and geographical survey high and object survey is high, a tractor serves several purposes.
2, self-alignment double laser level altimeter of the present invention, carry the levelness testing agency based on photoelectricity alignment principles, there are magnetic plummet Level tune (using when suspension type is measured) and burr adjustable tail margin Level tune (using when ground placed type is measured) two kinds of regulative modes and mechanisms simultaneously, its laser beam sent according to vertical generating laser is passed two transmission apertures successively and drops on the target center on pedestal, namely be for level mixes up, this process employs gravity direction as absolute scale, more accurate than traditional air-bubble level.
3, self-alignment double laser level altimeter of the present invention, the laser beam utilizing mechanical to contact is as measuring sonde, and light beam can reach can be surveyed, and thus can measure the position that the conventional levels altimeters such as various groove, hole cannot be measured.
4, the present invention supports two kinds of use-patterns: one is that level puts use, regulates four seat legs to make device level; Another kind vertically hangs use, catches on hang draw ring with hook, and the position of the center of gravity regulating block under adjusting base makes device level.Can select any one flexibly according to test site space constraint condition, datum water level restrictive condition, practicality is very strong.
5, the present invention is based on self luminous visible laser Shu Jinhang to measure, to ambient light no requirement (NR), be applicable to the various test environments such as dark, bright, zang light, only need select suitable measurement laser beam wavelength (color) as required, applicability is very extensive.
6, self-alignment double laser level altimeter of the present invention, singlely can operate, and need not cooperate, non-contact measurement reproducible.
7, simple, the easy accessibility of structure of the present invention, be easy to safeguard that and small volume and less weight is easy to carry about with one.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of self-alignment double laser level altimeter of the present invention;
Fig. 2 is a kind of preferred structure figure of self-alignment double laser level altimeter of the present invention;
Fig. 3 is the structural drawing one of sill driving mechanism and middle cross beam driving mechanism;
Fig. 4 is the structural drawing two of sill driving mechanism and middle cross beam driving mechanism;
Fig. 5 is the structural drawing of angle rotating mechanism;
Fig. 6 is measuring principle figure;
In figure, the implication of each label is as follows:
Pedestal 1, adjustable seat leg 2, sill 3, middle cross beam 4, entablature 5, vertical rule 6, horizontal laser light stadimeter 7, vertical generating laser 8, 45 degree of semi-transparent semi-reflecting lens 9, 45 degree of catoptrons 10, hang draw ring 11, center of gravity regulating block 12, sill driving mechanism 13, middle cross beam driving mechanism 14, beam orifice 15, target center 16, magnetic block 17, flexible lanyard 18, laser beam 20, fixed head 21, swivel mount 22, arc chute 24, traveller 25, locking member 26, first guide pillar 31, first rocking bar 32, first worm gear 33, first worm screw 34, first leading screw 35, first screw slider 36, sliding block 37, second guide pillar 41, second rocking bar 42, second worm gear 43, second worm screw 44, second leading screw 45, second screw slider 46, top shoe 47.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
As Figure 1-5, the invention provides a kind of self-alignment double laser level altimeter, comprise pedestal 1, multiple adjustable seat leg 2, sill 3, middle cross beam 4, entablature 5, vertically rule 6, horizontal laser light stadimeter 7, vertically generating laser 8,45 degree of semi-transparent semi-reflecting lens 9,45 degree of catoptrons 10, hang draw ring 11, center of gravity regulating block 12, sill driving mechanism 13 and middle cross beam driving mechanism 14;
All and plane-parallel, multiple adjustable seat legs 2 are fixedly mounted on the lower surface of pedestal 1, for height and the levelness of adjusting base 1 for the upper and lower surface of described pedestal 1;
Described center of gravity regulating block 12 is connected by the lower surface of magnetic attraction with pedestal 1, and center of gravity regulating block 12 can regulate arbitrarily manually or automatically with the relative position of pedestal 1; The structure adopted in the present embodiment is: the lower surface of described pedestal 1 is provided with magnetic sheet, center of gravity regulating block 12 is fixedly connected with a magnetic block 17, is realized the connection of center of gravity regulating block 12 and pedestal 1 by the suction of magnetic sheet and magnetic block 17.Certainly can also adopt other structures, such as pedestal lower surface is provided with magnet plate, center of gravity regulating block is magnetic material; Or the material of pedestal own is magnetic material, center of gravity regulating block is magnet.
Described vertical rule 6 is vertically arranged on pedestal 1, and it is marked with scale, for measuring sill 3 and the difference in height of middle cross beam 4 relative to pedestal 1 upper surface;
Described sill 3 is with middle cross beam 4 and is horizontally disposed with, that is vertical with vertical gravity direction, and described sill 3 is arranged on pedestal 1 by sill driving mechanism 13, and can do moving up and down of vertical gravity direction by sill driving mechanism 13 driving; Described middle cross beam 4 is arranged on pedestal 1 by middle cross beam driving mechanism 14, and can do moving up and down of vertical gravity direction by middle cross beam driving mechanism 14 driving;
Described horizontal laser light stadimeter 7 and 45 degree of semi-transparent semi-reflecting lens 9 are all fixedly mounted on sill 3, the laser beam 20 that its installation position should make horizontal laser light stadimeter 7 launch incides 45 degree of semi-transparent semi-reflecting lens 9 in the horizontal direction, after the turnover of 45 degree of semi-transparent semi-reflecting lens 9, enter to inject 45 degree of catoptrons 10 along vertical gravity direction vertically upward; Described 45 degree of catoptrons 10 are arranged on middle cross beam 4 by an angle rotating mechanism, and described angle rotating mechanism makes the angle of the minute surface of 45 degree of catoptrons 10 and surface level can regulate in the scope of 45 degree to 90 degree;
Laser beam 20 part for the horizontal direction that described horizontal laser light stadimeter 7 is launched reflects through 45 degree of semi-transparent semi-reflecting lens 9, and another part is through the transmission of 45 degree of semi-transparent semi-reflecting lens 9; Reflection lasering beam impinges perpendicularly on 45 degree of catoptrons 10, after 45 degree of catoptrons 10 are transferred, exports target measurement point to; Transmission laser bundle glancing incidence is on object under test;
Described entablature 5 supports and is arranged on pedestal 1, and is positioned at the top of middle cross beam 4, described in hang the upper surface that draw ring 11 is fixedly connected on entablature 5, use during for hanging measurement; Described vertical generating laser 8 is connected to the inside surface of entablature 5 by flexible lanyard 18; Described sill 3 and middle cross beam 4 are provided with beam orifice 15, and the upper surface of pedestal 1 is provided with target center 16; The locus of described vertical generating laser 8, beam orifice 15 and target center 16 should make vertical generating laser 8 naturally vertical sagging time the laser beam that exports, advance along vertical gravity direction, drop on the target center 16 of pedestal 1 through two beam orifices 15 successively.
Described sill driving mechanism 13 and middle cross beam driving mechanism 14 are separately positioned on the both sides of pedestal 1, their a kind of preferred structure is: described sill driving mechanism 13 comprises the first guide pillar 31, first rocking bar 32, first worm gear 33, first worm screw 34, first leading screw 35 and the first screw slider 36, and described middle cross beam driving mechanism 14 comprises the second guide pillar 41, second rocking bar 42, second worm gear 43, second worm screw 44, second leading screw 45 and the second screw slider 46.
First guide pillar 31 is vertically arranged on the left side of pedestal 1, and the second guide pillar 41 is vertically arranged on the right side of pedestal 1.The left and right sides of described sill 3 is fastenedly connected with two sliding blocks 37 respectively, two sliding blocks 37 being arranged on the first guide pillar 31 and the second guide pillar 41 of slip respectively.The left and right sides of described middle cross beam 4 is fastenedly connected with two top shoes 47 respectively, two top shoes 47 being arranged on the first guide pillar 31 and the second guide pillar 41 of slip respectively.
First rocking bar 32 is connected with the first worm screw 34, rotates for driving the first worm screw 34; Described first worm gear 33 and the first worm screw 34 form Worm and worm-wheel gearing, and described first worm gear 33 is sleeved on one end of the first leading screw 35, links with the first leading screw 35, and the first screw slider 36 screws in the first leading screw 35.First screw slider 36 is fixed together with the sliding block 37 in left side, and top shoe 47 inside in left side is provided with a through hole, and the first leading screw 35, through after the through hole on the top shoe 47 in left side, is arranged on the first guide pillar 31 by bearing.
Second rocking bar 42 is connected with the second worm screw 44, rotates for driving the second worm screw 44; Described second worm gear 43 and the second worm screw 44 form Worm and worm-wheel gearing, and described second worm gear 43 is sleeved on two ends of the second leading screw 45, links with the second leading screw 45; Second screw slider 46 screws in the second leading screw 45.Second screw slider 46 is fixed together with the top shoe 47 on right side, and sliding block 37 inside on right side is provided with a through hole, and the second leading screw 45 through the through hole on the sliding block 37 on right side, and is arranged on the second guide pillar 41 by bearing.
A kind of preferred structure of described angle rotating mechanism is: comprise fixed head 21, swivel mount 22, Digit Display Angle Ruler, arc chute 24, traveller 25 and locking member 26, described fixed head 21 and arc chute 24 are all fixedly mounted on middle cross beam 4, and described 45 degree of catoptrons 10 are arranged on swivel mount 22;
Described swivel mount 22 is connected with fixed head 21 by articulated manner, and swivel mount 22 can be rotated around pin joint, its center of rotation axis and plane-parallel; Described Digit Display Angle Ruler is arranged between fixed head 21 and swivel mount 22, for measuring and showing the corner of described swivel mount 22;
Described traveller 25 is fixedly mounted on the upper end, side of swivel mount 22, and through arc chute 24, is connected with locking member 26; The installation site of described arc chute 24 and track length should make the angle of the minute surface of 45 degree of catoptrons 10 and surface level can regulate in the scope of 45 degree to 90 degree.
The step adopting above-mentioned self-alignment double laser level altimeter to carry out elevation carrection comprises following two steps:
The first step, laying of self-alignment double laser level altimeter, specific as follows:
According to measurement environment and measuring condition situation, two kinds are had to lay mode.
Mode one, if measurement space is permitted, and there is good reference plane, can self-alignment double laser level altimeter be placed on reference plane, regulate multiple adjustable seat leg 2, make the height of adjusting base 1 suitable (horizontal laser light stadimeter 7 launch measurement laser beam just in time glancing incidence to the reference point to be measured in measurand, namely the C point in Fig. 6), and make the levelness of self-alignment double laser level altimeter meet measuring accuracy requirement, namely vertical generating laser 8 naturally vertical sagging time export laser beam, advance along vertical gravity direction, pass two beam orifices 15 successively and drop on the target center 16 of pedestal 1,
Mode two, if there is no good reference plane, then can self-alignment double laser level altimeter flexible cord be fixed on external stabilization structure through hanging draw ring 11 suspension, then the length of flexible cord is regulated and the relative position of swerve the weight regulating block 12 and pedestal 1, make the height of adjusting base 1 suitable (horizontal laser light stadimeter 7 launch measurement laser beam just in time glancing incidence to the reference point to be measured in measurand, namely the C point in Fig. 6), and make the levelness of self-alignment double laser level altimeter meet measuring accuracy requirement, namely vertical generating laser 8 naturally vertical sagging time export laser beam, advance along vertical gravity direction, pass two beam orifices 15 successively and drop on the target center 16 of pedestal 1.
Second step, surveying and calculating, specific as follows:
Open horizontal laser range finder 7, measurement laser beam launched by horizontal laser light stadimeter 7, and record its launch time of t1, measurement laser beam is incided the D point on 45 degree of semi-transparent semi-reflecting lens 9 in the horizontal direction by E point, two bundles and transmission laser bundle and reflection lasering beam will be divided in this laser beam, wherein transmission laser bundle glancing incidence is to the C point in measurand, suppose C point place non-specular surface (actual measurand does not generally have specular reflective characteristics), so from geometrical optics and physical optics knowledge, the bundle light that returns of measurand C point place's scattering always has certain proportion will return along former road, and received by the optical detection device of horizontal laser light stadimeter 7, record its time of reception t2, simultaneously, turnover 90 degree of directions are injected into the B point place of 45 degree of catoptrons 10 by the reflection lasering beam at D point place, according to the angle of the vertical position of the middle cross beam 4 regulated in advance and 45 degree of catoptrons 10 (as shown in Figure 6, fore-and-aft distance between the laser beam that the central axis of mark 45 degree of catoptrons 10 and horizontal laser light stadimeter 7 are launched is H1, angle between the light direction of 45 degree of catoptrons 10 and surface level is alpha), can make just in time to arrive target measurement point A by the laser beam of B point reflection, suppose A point place non-specular surface (actual measurand does not generally have specular reflective characteristics), so from geometrical optics and physical optics knowledge, the bundle light that returns of measurand A point place's scattering always has certain proportion will return along former road, and received by the optical detection device of horizontal laser light stadimeter 7, record its time of reception t3.
If the light velocity is Vc, the spacing of AB is L3, the spacing of CD is L1, the spacing of DE is d (that is the distance between horizontal laser light stadimeter 7 and 45 degree of semi-transparent semi-reflecting lens 9, according to the two installation position relation, d is default known numeric value), according to light path computing formula, have following relational expression to set up:
L3＝Vc*(t3-t1)-H-d
L1＝Vc*(t2-t1)-d
So, the calculating of the height value H (that is vertical range of AC point) of measurand has the following two kinds mode:
Mode one, if the lateral dimension of measurand (that is horizontal range of AC point) L2 adopts other modes to measure known (meet most of object and survey high situation), then the computing formula of H is:
H＝H1+H2＝H1+L*tg(alpha)＝H1+(L1+L2)*tg(alpha)
Mode two, if the lateral dimension of measurand (that is horizontal range of AC point) L2 is difficult to measure (meet most of geography and survey high situation), then the computing formula of H is:
H＝H1+H2＝H1+L3*sin(alpha)
It is apparent to one skilled in the art that the present invention can change into various ways, and such change is not thought and departed from the scope of the present invention.All like this to the apparent amendment of the technician in described field, by be included in this claim scope within.
Claims (2)
1. a self-alignment double laser level altimeter, it is characterized in that, comprise pedestal (1), multiple adjustable seat leg (2), sill (3), middle cross beam (4), entablature (5), vertically rule (6), horizontal laser light stadimeter (7), vertically generating laser (8), 45 degree of semi-transparent semi-reflecting lens (9), 45 degree of catoptrons (10), hang draw ring (11), center of gravity regulating block (12), sill driving mechanism (13) and middle cross beam driving mechanism (14);
All and plane-parallel, multiple adjustable seat legs (2) are fixedly mounted on the lower surface of pedestal (1), for height and the levelness of adjusting base (1) for the upper and lower surface of described pedestal (1);
Described center of gravity regulating block (12) is connected by the lower surface of magnetic attraction with pedestal (1), and center of gravity regulating block (12) can regulate arbitrarily manually or automatically with the relative position of pedestal (1);
Described vertical rule (6) is vertically arranged on pedestal (1), and it is marked with scale, for measuring sill (3) and the difference in height of middle cross beam (4) relative to pedestal (1) upper surface;
Described sill (3) and middle cross beam (4) are and are horizontally disposed with, that is it is vertical with vertical gravity direction, described sill (3) is arranged on pedestal (1) by sill driving mechanism (13), and can do moving up and down of vertical gravity direction by sill driving mechanism (13) driving; Described middle cross beam (4) is arranged on pedestal (1) by middle cross beam driving mechanism (14), and can do moving up and down of vertical gravity direction by middle cross beam driving mechanism (14) driving;
Described horizontal laser light stadimeter (7) and 45 degree of semi-transparent semi-reflecting lens (9) are all fixedly mounted on sill (3), the laser beam (20) that its installation position should make horizontal laser light stadimeter (7) launch incides 45 degree of semi-transparent semi-reflecting lens (9) in the horizontal direction, after the turnover of 45 degree of semi-transparent semi-reflecting lens (9), upwards enter to inject 45 degree of catoptrons (10) along vertical gravity direction; Described 45 degree of catoptrons (10) are arranged on middle cross beam (4) by an angle rotating mechanism, and described angle rotating mechanism makes the angle of the minute surface of 45 degree of catoptrons (10) and surface level can regulate in the scope of 45 degree to 90 degree;
Laser beam (20) part for the horizontal direction that described horizontal laser light stadimeter (7) is launched is through 45 degree of semi-transparent semi-reflecting lens (9) reflections, and another part is through the transmission of 45 degree of semi-transparent semi-reflecting lens (9); Reflection lasering beam impinges perpendicularly on 45 degree of catoptrons (10), after 45 degree of catoptron (10) turnovers, exports target measurement point to; Transmission laser bundle glancing incidence is on object under test;
Described entablature (5) supports and is arranged on pedestal (1), and be positioned at the top of middle cross beam (4), describedly hanging the upper surface that draw ring (11) is fixedly connected on entablature (5), using during for hanging measurement; Described vertical generating laser (8) is connected to the inside surface of entablature (5) by flexible lanyard (18); Described sill (3) and middle cross beam (4) are provided with beam orifice (15), and the upper surface of pedestal (1) is provided with target center (16); The locus of described vertical generating laser (8), beam orifice (15) and target center (16) should make vertical generating laser (8) naturally vertical sagging time the laser beam that exports, advance along vertical gravity direction, pass two beam orifices (15) successively and drop on the target center (16) of pedestal (1);
Described sill driving mechanism (13) and middle cross beam driving mechanism (14) are separately positioned on the both sides of pedestal (1);
Described sill driving mechanism (13) comprises the first guide pillar (31), the first rocking bar (32), the first worm gear (33), the first worm screw (34), the first leading screw (35) and the first screw slider (36), and described middle cross beam driving mechanism (14) comprises the second guide pillar (41), the second rocking bar (42), the second worm gear (43), the second worm screw (44), the second leading screw (45) and the second screw slider (46);
First guide pillar (31) is vertically arranged on the left side of pedestal (1), and the second guide pillar (41) is vertically arranged on the right side of pedestal (1); The left and right sides of described sill (3) is fastenedly connected with two sliding blocks (37) respectively, two sliding blocks (37) respectively slip be arranged on the first guide pillar (31) and the second guide pillar (41); The left and right sides of described middle cross beam (4) is fastenedly connected with two top shoes (47) respectively, two top shoes (47) respectively slip be arranged on the first guide pillar (31) and the second guide pillar (41);
First rocking bar (32) is connected with the first worm screw (34), rotates for driving the first worm screw (34); Described first worm gear (33) and the first worm screw (34) form Worm and worm-wheel gearing, described first worm gear (33) is sleeved on one end of the first leading screw (35), link with the first leading screw (35), the first screw slider (36) screws in the first leading screw (35); First screw slider (36) is fixed together with the sliding block (37) in left side, top shoe (47) inside in left side is provided with a through hole, first leading screw (35), through after the through hole on the top shoe (47) in left side, is arranged on the first guide pillar (31) by bearing;
Second rocking bar (42) is connected with the second worm screw (44), rotates for driving the second worm screw (44); Described second worm gear (43) and the second worm screw (44) form Worm and worm-wheel gearing, and described second worm gear (43) is sleeved on two ends of the second leading screw (45), links with the second leading screw (45); Second screw slider (46) screws in the second leading screw (45); Second screw slider (46) is fixed together with the top shoe (47) on right side, sliding block (37) inside on right side is provided with a through hole, second leading screw (45) through the through hole on the sliding block (37) on right side, and is arranged on the second guide pillar (41) by bearing;
Described angle rotating mechanism comprises fixed head (21), swivel mount (22), Digit Display Angle Ruler, arc chute (24), traveller (25) and locking member (26), described fixed head (21) and arc chute (24) are all fixedly mounted on middle cross beam (4), and described 45 degree of catoptrons (10) are arranged on swivel mount (22);
Described swivel mount (22) is connected with fixed head (21) by articulated manner, swivel mount (22) can be rotated, its center of rotation axis and plane-parallel around pin joint; Described Digit Display Angle Ruler is arranged between fixed head (21) and swivel mount (22), for measuring and showing the corner of described swivel mount (22);
Described traveller (25) is fixedly mounted on the upper end, side of swivel mount (22), and through arc chute (24), is connected with locking member (26); Regulate in the scope that the installation site of described arc chute (24) and track length should make the angle of the minute surface of 45 degree of catoptrons (10) and surface level can spend to (90) at 45 degree.
2. self-alignment double laser level altimeter according to claim 1, it is characterized in that, the lower surface of described pedestal (1) is provided with magnetic sheet, center of gravity regulating block (12) is fixedly connected with a magnetic block (17), is realized the connection of center of gravity regulating block (12) and pedestal (1) by the suction of magnetic sheet and magnetic block (17).
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| CN201410142355.4A CN103884316B (en) | 2014-04-02 | 2014-04-02 | A kind of self-alignment double laser level altimeter |
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Cited By (2)
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| CN108188721A (en) * | 2017-07-06 | 2018-06-22 | 沪东中华造船(集团)有限公司 | A kind of horizontal base alignment adjusting method |
| RU2779243C1 (en) * | 2021-07-14 | 2022-09-05 | Федеральное государственное бюджетное учреждение науки Институт машиноведения им. А.А. Благонравова Российской академии наук (ИМАШ РАН) | Broadband apparatus for track-free verification of the parameters of laser rangefinders |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108188721A (en) * | 2017-07-06 | 2018-06-22 | 沪东中华造船(集团)有限公司 | A kind of horizontal base alignment adjusting method |
| RU2779243C1 (en) * | 2021-07-14 | 2022-09-05 | Федеральное государственное бюджетное учреждение науки Институт машиноведения им. А.А. Благонравова Российской академии наук (ИМАШ РАН) | Broadband apparatus for track-free verification of the parameters of laser rangefinders |
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| CN103884316A (en) | 2014-06-25 |
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Application publication date: 20140625 Assignee: INSTITUTE OF LASER AND OPTOELECTRONICS INTELLIGENT MANUFACTURING, WENZHOU University Assignor: Wenzhou University Contract record no.: X2020330000103 Denomination of invention: A self calibration double station laser altimeter Granted publication date: 20160309 License type: Common License Record date: 20201125 |
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