CN109342185A - A kind of rock long-term creep acts on lower micro-measure automatic tracking system and method - Google Patents
A kind of rock long-term creep acts on lower micro-measure automatic tracking system and method Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/068—Special adaptations of indicating or recording means with optical indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/28—Investigating ductility, e.g. suitability of sheet metal for deep-drawing or spinning
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0071—Creep
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Abstract
Lower micro-measure automatic tracking system is acted on this application discloses a kind of rock long-term creep and method, system include: bottom support bracket, and upper surface is horizontal working face；Positioning support, bottom are located on the bottom support bracket in a manner of it can move along the working face, and the tip height of the positioning support is adjustable；To acquire the thin sight optical camera of the thin sight image of sample during test, it is located at the top of the positioning support in a manner of it can rotate in the horizontal plane, the tip height of the positioning support is adjustable；Control system is connect with the thin sight optical camera, and every setting time, the control system controls the thin thin sight image seen optical camera and acquire the sample.
Description
Technical field
The present disclosure relates generally to experiment survey meter device technical field more particularly to a kind of lower thin sights of rock long-term creep effect
Measure automatic tracking system and method.
Background technique
The infrastructure projects such as a large amount of traffic, water conservancy and hydropowers are constantly built, in these Process of Engineering Construction, underground engineering
Often meet rock large deformation problem.Under the long term of external load, there is joint and the rock mass in crack its stress, strain and destruction
Form can constantly change, and show apparent creep properties, this creep properties of rock often result in engineering unstable failure, to work
Cheng Anquan, which is constituted, greatly to be threatened.It is continuously increased especially with underground engineering depth, geological environment complexity is higher, high
With construction disturbance, the deformation behaviours of rock mass are increasingly complex for temperature, high-ground stress, Thief zone hydraulic pressure, therefore, for creep characteristic of rock
Research be increasingly becoming numerous engineering staffs' focus of attention.
In recent years, by means such as theory analysis, laboratory test, numerical simulations to the research layer of creep characteristic of rock not
Thoroughly, more there are many improvement about creep test system and test method.
In January, 2015, the Chinese patent application " rock based on the simulation of thin sight group structure of 107941614 A of Publication No. CN
Creeping property prediction technique " in provide it is a kind of based on thin sight group structure simulation creep of rock property prediction technique, first pass through examination
It tests to obtain the creeping property of every kind of Within Monominerals rock, further according to the ratio of mineral compositions various in rock, by numerical simulation side
Multi-mineral rocks Integer creeping mechanical property is calculated in method.
In April, 2018, a kind of Chinese patent application " rock fracture creep test system of 104280299 A of Publication No. CN
System " in provide a kind of rock fracture creep test system, it can be considered that the problem of the creep properties and seepage flow of rock fracture.
In June, 2018, a kind of Chinese patent application " rock multi- scenarios method creep examination of 108120643 A of Publication No. CN
Experiment device " in propose a kind of rock multi- scenarios method creep test device, it is more in temperature-fluid-stress-chemistry to can solve rock
Under kind coupled field collective effect, the holding of environment parameter locating for rock sample carries out creep test under conditions of remaining unchanged for a long period of time, and protects
Card device sealing effect is good, test process is stable, test data precision is high, have a wide range of application and adaptability is good.
The above experimental rig or test method provide preferable basis for creep of rock Quality Research, but for rock
The measurement of stone creep is substantially to be obtained based on indirect method, inevitably will cause test error, simultaneously for creep
Sample TERM DEFORMATION characteristic in journey, especially sample carefully see the deformation monitoring research of level, lack effective technology means, for
The creep mechanism for disclosing rock still lacks the support of straightway testing data.Especially in the prior art, creep of rock test after
Time is for a long time, it is sometimes desirable to several years, in this stage during, the variation of biggish bulk & form can occur for sample, from
And lead to the target part monitored required for the sample parts substantial deviation sample of actual monitoring, it is not able to satisfy for creep monitoring
It should be this requirement with the long-term follow monitoring process of a part.
Summary of the invention
In view of drawbacks described above in the prior art or deficiency, it is intended to provide a kind of lower micro-measure of rock long-term creep effect
Automatic tracking system, solve during rock long-term creep can not accurate focusing, it is thin to see automatic tracing and measuring problem.
In a first aspect, the embodiment of the present application provides a kind of rock long-term creep and acts on lower micro-measure and automatically track is
System, comprising:
Bottom support bracket, upper surface are horizontal working face；
Positioning support, bottom are located on the bottom support bracket in a manner of it can move along the working face, the positioning
The tip height of support is adjustable；
To acquire test during sample thin sight image thin sight optical camera, with what can be rotated in the horizontal plane
Mode is located at the top of the positioning support, and the tip height of the positioning support is adjustable；
Control system is connect with the thin sight optical camera, and every setting time, the control system control is described thin
See the thin sight image that optical camera acquires the sample.
The positioning support is located on the bottom support bracket by translating power driven system, and the translation power driven system includes the
One direction regulating system and second direction regulating system, the first direction regulating system include fixed the on the base
First rigid platfor of one motor and a carrying positioning support, the output shaft of the first motor are connect with a screw rod,
First rigid platfor is threadedly engaged with the screw rod, by the rotation of the first motor output shaft, is driven described rigid
The mild-natured translational motion along the screw rod direction, and then drive the movement of the positioning support；The second direction is adjusted
System includes the second motor and the second rigid platfor, and identical as the structure of the first direction regulating system, arranged direction is hung down
Directly.The design for translating power driven system may be implemented carefully to see the automatic adjustment of optical camera in the horizontal direction, make carefully to see optical camera
Realize that the automatic focusing of horizontal direction is possibly realized for the target part of monitoring required for sample.
The rigid platfor by can along the direction relative motion perpendicular to the corresponding screw rod in a manner of with it is described fixed
The bottom connection of position support.
The bottom of the positioning support offers sliding slot perpendicular to the screw rod direction, and the side of the rigid platfor is set
There is the sliding rail with sliding slot cooperation.First direction and second direction may be implemented and adjust mutually indepedent, sample is in creep
In the process, with vertical deformation, laterally can also occur to deform accordingly.First direction and second direction it is separately adjustable,
It can make the center of focus registration coupon transverse direction always in sample transversely deforming, while corresponding focal length may be implemented
It adjusts.
The connecting rod of the positioning support is stretchy rod.
The bottom of the positioning support is equipped with third direction regulating system comprising the be fixed on the bottom support bracket
The output shaft of three motors, the third motor is connect with a screw rod, and the center of the positioning support is equipped with and the screw rod
The threaded hole of cooperation；The automatic tracking system further includes the limit matching piece for limiting the positioning support and horizontally rotating, described
Limiting matching piece includes a Horizontal limiting plate and a gag lever post, and the Horizontal limiting plate is fixed on the positioning support cross section
Place, which is provided with the via hole passed through to the gag lever post, and the bottom end of the gag lever post is fixedly connected with the bottom support bracket, it
The other end is in free state.The height that positioning support top is adjusted by the rotation of control third motor, keeps focus right always
The quasi- longitudinally central position of sample realizes thin optical camera of seeing to the automatic focusing of sample target part.
The top of the positioning support is equipped with fixed device, is equipped with rotary electric system, the rotation in the fixed device
Turning power driven system includes rotating electric machine and rotating platform, and the thin sight optical camera is fixed on the rotating platform；The rotation
The output shaft of rotating motor is connect with screw rod, and the other end of the screw rod is fixedly connected with the rotating platform, the rotation
The output shaft of motor rotates, and drives the rotation of the rotating platform in the horizontal plane.It is adjusted by controlling the rotation of rotating electric machine
Section positioning adjusts the angle of support, so that the shaft core position of the camera lens registration coupon always of habit optical camera.
The control system is connect with each motor, and the control system is by analyzing the sample present image with before
The situation of change of the central area position of phase image, according to the present image center and image early period conversed
The displacement of center and deflection angle control corresponding motor rotation, and the thin sight optical camera is made to focus to described current
The thin automatic focusing for seeing optical camera is realized in the central area position of image.
Wherein, the object of present image and image early period is all Sample Image, and central area position is Sample Image
Geometric center position.It is understood that picture centre region can also be defined as specimen surface crackle closeness be greater than set
The specimen surface crackle close quarters of definite value.It, can be according to the specific feelings of creep sample for the applicability that central area defines
Condition is selected.
Second aspect, the embodiment of the present application provide a kind of lower micro-measure side of automatically tracking of rock long-term creep effect
Method, comprising the following steps:
Thin optical camera of seeing is focused to the central area of sample；
In sample pressure process, the thin sight image of the sample is acquired；
The situation of change for analyzing the sample present image and picture centre region early period position, according to conversing
The displacement of present image center and image center location early period and deflection angle control corresponding motor rotation, make
The thin sight optical camera is focused to the central area position of the present image, realizes the thin automatic tune for seeing optical camera
It is burnt.
The focusing of the camera is adjusted by the rotation of control third motor to adapt to the variation of the displacement ordinate, is led to
The rotation for crossing control first motor, the second motor and rotating electric machine adjusts the focusing of the camera to adapt to the displacement in level
Variation in face.Since sample is cylindrical body, when the central area of its crack image changes, center Yan Shui
Square to variation can along the surface of cylinder occur angle offset.At this point it is possible to calculate thin optical camera of seeing along first
The position that direction and second direction need to deviate, and it is current center and centre bit early period that camera, which needs the angle rotated,
Set the angle of cut of the axis relative to sample under sample cylindrical coordinates.
Rock long-term creep provided by the embodiments of the present application acts on lower micro-measure and automatically tracks scheme, utilizes micro-measure
Automatic tracking system has filled up the technological gap that can not accurately measure rock long-term creep process in the past；Realize meso-scale
The micro character of whole audience strain measurement, real-time tracking material damage or deformation.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 shows the structural schematic diagram of micro-measure automatic tracking system in the embodiment of the present application；
Fig. 2 shows I-I place's tanslation driving system cross-sectional views in the embodiment of the present application；
Fig. 3 shows the flow chart of automatic focusing method in the embodiment of the present application.
Wherein, 1, control and acquisition system；2, rigid press；3, rigid base platform；4, sample；5, thin to go sightseeing to learn phase
Machine；6, fixed camera pedestal；7, Horizontal limiting plate；8, X to translation scale；9, Y-direction translation scale；10, Z-direction translation scale；11,
X is to pan drive motor and connecting screw；12, Y-direction pan drive motor and connecting screw；13, Z-direction pan drive motor and company
Connect screw rod；14, rotary drive motor and connecting screw；15, gag lever post.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described embodiment is
A part of the invention is instead of all the embodiments.For ease of description, part relevant to invention is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the embodiment of the present invention for usually describing and showing in this figure
Component can arrange and design with a variety of different configurations.It is understood that specific embodiment described herein is only
It is only used for explaining related invention, rather than the restriction to the invention.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second ", " third " are used for description purposes only, and it should not be understood as instruction or dark
Show relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, belong to " setting ",
" connection " should broadly understood, for example, it may be being fixedly connected, may be a detachable connection, or the connection of one；It can be
Mechanical connection, is also possible to be electrically connected；It can be and be directly connected to, can also be indirectly connected with by intermediary, can be two
Connection inside element.For the ordinary skill in the art, visual concrete condition understands above-mentioned term in the present invention
In concrete meaning.
As described in the background art, straight for the thin sight surface of creep of rock process with the progress of optical image technology
It connects monitoring and has become possibility, current Major Difficulties are, during creep of rock, the change of bulk & form can occur for sample
Change, and should be with a part of long-term follow monitoring process for the monitoring of creep, it is therefore necessary to during solving this,
The tracking and focusing problem of high-precision camera.
Embodiment one
The embodiment of the present application provides a kind of lower micro-measure automatic tracking system of rock long-term creep effect, including bottom
Support, positioning support, thin sight optical camera and control system.
Wherein, the upper surface of bottom support bracket is horizontal working face；The bottom of positioning support along working face can move
Mode is located on bottom support bracket, and the tip height of positioning support is adjustable.To acquire test during sample thin sight image
Thin sight optical camera, be located at the top of positioning support in a manner of it can rotate in the horizontal plane, the top of positioning support is high
Degree is adjustable.
Specifically, positioning support is located on bottom support bracket by translating power driven system, translation power driven system includes first party
To regulating system and second direction regulating system, first direction regulating system includes that the first motor being fixed on the base and one hold
The first rigid platfor of positioning support is carried, the output shaft of first motor is connect with a screw rod, the first rigid platfor and screw rod
It is threadedly engaged, by the rotation of first motor output shaft, drives rigid platfor along the translational motion in screw rod direction, and then drive
The movement of positioning support；Second direction regulating system includes the second motor and the second rigid platfor, adjusts system with first direction
The structure of system is identical, and arranged direction is vertical.The design for translating power driven system may be implemented carefully to see optical camera in the horizontal direction
Automatic adjustment becomes thin optical camera of seeing for the automatic focusing of the target part realization horizontal direction monitored required for sample
It may.
Rigid platfor by can along the direction relative motion perpendicular to corresponding screw rod in a manner of and positioning support bottom
Connection.
The bottom of positioning support offers sliding slot perpendicular to screw rod direction, and the side of rigid platfor is equipped with to be cooperated with sliding slot
Sliding rail.
The bottom of positioning support is equipped with third direction regulating system comprising the third motor being fixed on bottom support bracket,
The output shaft of third motor is connect with a screw rod, and the center of positioning support is equipped with the threaded hole cooperated with screw rod；Automatically with
Track system further includes the limit matching piece for limiting positioning support and horizontally rotating, and limit matching piece includes a Horizontal limiting plate and a limit
Position bar, Horizontal limiting plate are fixed on positioning support cross-section, which is provided with the via hole passed through to gag lever post, the bottom of gag lever post
End is fixedly connected with bottom support bracket, its other end is in free state.Positioning support is adjusted by controlling the rotation of third motor
The height on top makes the focus longitudinally central position of registration coupon always, realizes thin optical camera of seeing to sample target part
Automatic focusing.
It is understood that positioning support can also realize positioning support using the stretchy rod controlled by controller
The height adjustment on top.
The top of positioning support is equipped with fixed device, is equipped with rotary electric system, rotary electric system packet in fixed device
Rotating electric machine and rotating platform are included, thin sight optical camera is fixed on rotating platform；The output shaft and screw rod of rotating electric machine connect
It connects, the other end of screw rod is fixedly connected with rotating platform, and the output shaft rotation of rotating electric machine drives rotating platform in horizontal plane
Interior rotation.The angle that positioning adjusts support is adjusted by the rotation of control rotating electric machine, so that the mirror of habit optical camera
The shaft core position of head registration coupon always.
Control system is connect with each motor, the central area that control system passes through analysis sample present image and image early period
The situation of change of position, according to the displacement and deflection angle of the present image center and image center location early period that converse
Degree controls the rotation of corresponding motor, makes carefully to see optical camera and focus to the central area position of present image, realizes thin sightseeing
The automatic focusing of camera.
Wherein, the object of present image and image early period is all Sample Image, and central area position is Sample Image
Geometric center position.
The embodiment of the present application provides a kind of lower micro-measure automatic tracking method of rock long-term creep effect, including following
Step:
Thin optical camera of seeing is focused to the central area of sample；
In sample pressure process, the thin sight image of sample is acquired；
The situation of change for analyzing sample present image and picture centre region early period position, according to the present image conversed
The displacement of center and image center location early period and deflection angle control corresponding motor rotation, make carefully to see optical camera
Focusing realizes the thin automatic focusing for seeing optical camera to the central area position of present image.
The variation that displacement ordinate is adapted to by the focusing of the rotation adjustment camera of control third motor, passes through control the
The focusing of the rotation adjustment camera of one motor, the second motor and rotating electric machine is to adapt to be displaced variation in the horizontal plane.Due to
Sample is cylindrical body, therefore when the central area of its crack image changes, the variation meeting of center in the horizontal direction
The offset of angle occurs along the surface of cylinder.At this point it is possible to calculate thin optical camera of seeing along first direction and second direction
The position for needing to deviate, and it is current center and center early period relative to sample that camera, which needs the angle rotated,
The angle of cut of the axis under sample cylindrical coordinates.
Attached drawing 1-3 is please referred to accordingly, and rock long-term creep acts on lower micro-measure automatic tracking system, comprising: pressurization
System, the intelligent automatic tracing and measuring system of thin sight, control and acquisition system 1.
Compression system includes rigid press, displacement sensor, control and acquisition system and rigid workbench.Its
In, rigid press 2 uses electrohydraulic servo-controlling system, is applied a force to by moving piston pressure head and rigid base platform 3
4 upper end of sample, the rigid press peak load are 600kN, can be realized by two kinds of loading methods of stress or displacement.
Compression system connection relationship is that the moving piston, pressure head and bottom stress support of rigid press form stress system
System, acts on rock sample；The both ends of displacement sensor are separately fixed on press motion piston and bottom stress support.
It is thin to see intelligent automatic tracing and measuring system including carefully seeing optical camera, three-dimensional localization support, control and acquisition system.
Further, thin intelligence automatic tracing and measuring system connection relationship of seeing is that the thin fuselage for seeing optical camera passes through positioning
Support is fixed on rigid workbench；Positioning support controls the translation and rotation in three directions, electronic system by power driven system
System include three directions of x, y, z translation system (each electric platforms, by a small machine, a high-precision spiral bar and just
Mild-natured composition, motor receive movement instruction, and screw rod drives platform of just waking up to carry out translational motion) and rotation system (rotation
Platform, by a small machine, high-precision can screw rod, there are also rigid platfor composition, motor receives rotation and refers to spherical spinner
It enables, rotor is rotated according to instruction, and entire rigid platfor is then driven to rotate).It is acted on by power driven system, in conjunction with sample
Creep situation realize automatic focusing, obtain clearest projected image.In focusing range can front and rear, left and right, move up and down camera lens
Distance, and rotated by camera lower part spherical arrangement, find optimal imaging angle.Specifically, micro-measure automatic tracking system
It is main to be formed by carefully seeing optical camera 5, tanslation driving system and rotary drive system.
Thin optical camera 5 of seeing includes ccd image sensor, optical loupes and fuselage, and the pixel of camera is 4,000,000 pictures
Element, ccd image sensor physical size is 15 × 15mm, and is tracked using 10 times of amplification optical lens to 4 surface of sample
Shooting, fuselage are fixed on rigid base platform 3.Thin optical camera of seeing can select model shown in following table.
Table 1 carefully goes sightseeing to learn camera parameter table
Tanslation driving system includes X electric to driven in translation to translation scale 8, Y-direction translation scale 9, Z-direction translation scale 10, X
Machine and connecting screw 11, Y-direction pan drive motor and connecting screw 12 and Z-direction pan drive motor and connecting screw 13 form,
It is rotated by motor and drives threaded rod movement.Pass through the adjustable thin sight optical camera 5 of rotary drive motor and connecting screw 14
Alignment angle, while Z-direction motor driven makes can to prevent fixed camera pedestal 6 from occurring by Horizontal limiting plate 7 and gag lever post 15
Rotation, can generally realize the direction translational and precise measurement of three-dimensional X, Y, Z.
By the mutual cooperation of tanslation driving system and rotary drive system, which can realize 10nm translation essence
Degree demand；And then control and acquisition system are imported using data transmission system, it is ensured that the thin creep for seeing camera follow-up sample 4, from
Motion tracking positions clear shooting in real time.
Automatic adjustment can sequentially include the following steps:
(1) firstly, carving t at the beginning0Record sample original image t0It is clear to analyze original image by naked eyes by-pic-ori
Clear degree, if image definition cannot reach macroscopic requirement, with regard to the translation shaft of mobile sample normal direction, until image is clear
Clear, image is t to record at this time0- pic-cor, while specimen surface crackle close quarters are chosen as picture centre region (size
Generally select 120*120pixels).
(2) sample being carried out with experiment, creep process, a period of time t occurs1When (can sets itself according to experimental conditions) note
Sample present time image is recorded, it is t that record, which does not correct image,1-pic-ori。
(3) in image t1After the completion of-pic-ori record, with the clear Sample Image t of previous step0- pic-cor is compared,
Using global map method to above two image carry out gray proces, while using least square method (reference: Yu Zhijing,
Ma Kai, Wang Zhijun, wait use weighted least-squares criterion image instrument Atomatic focusing method [J] semiconductor optoelectronic, 2017,
38 (4): 592-597.), find above-mentioned image t0Picture centre region in-pic-cor is in image t1It is new in-pic-ori
Position coordinates, utilize the coordinate recorded out, convert t1The x that-pic-ori image center location occurs, y, the displacement of the direction z and xy
Rotation angle in plane needs to adjust x, the rotation angle of y, z tri- direction rigid displacements and x/y plane according to institute is calculated
Degree gives 4 corresponding electric platforms, realizes adjust automatically.And record this stylish sample amendment image t1-pic-cor。
(4) after the completion of the above process, in subsequent time t2, record and do not correct image t2- pic-ori, with previous step correction map
As t1- pic-cor is compared, and is repeated step (3).
(5) in moment tiWhen, record sample does not correct image ti- pic-ori, while image t is corrected with previous stepi-1-
Pic-cor compares, and repeats the above process (2), (3), (4), while recording sample amendment image ti- pic-cor, it is automatic right to complete
Burnt process.
(6) in moment tnThe adjustment of platform auto-focusing and recording process are realized in off-test.
With data collection system, displacement sensor, thin optical camera of seeing are connected with control and acquisition system for monitoring.It can
The sensors such as sound emission, stress meter and multipoint displacement meter are installed on 4 surface of sample, monitoring creep acts on the rupture of lower sample, answers
Power and deformation behaviour；And then realize that the quantization that sample lesion ruptures develop recognizes by acquisition and control system.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Any combination and the other technical solutions formed.Such as features described above and (but being not limited to) disclosed herein have it is similar
The technical characteristic of function is replaced mutually and the technical solution that is formed.
Claims (10)
1. a kind of rock long-term creep acts on lower micro-measure automatic tracking system characterized by comprising
Bottom support bracket, upper surface are horizontal working face；
Positioning support, bottom are located on the bottom support bracket in a manner of it can move along the working face, the positioning support
Tip height it is adjustable；
To acquire test during sample thin sight image thin sight optical camera, in a manner of it can rotate in the horizontal plane
It is located at the top of the positioning support, the tip height of the positioning support is adjustable；
Control system is connect with the thin sight optical camera, and every setting time, the control system controls the thin sightseeing
Learn the thin sight image that camera acquires the sample.
2. rock long-term creep according to claim 1 acts on lower micro-measure automatic tracking system, which is characterized in that institute
It states positioning support and is located on the bottom support bracket by translating power driven system, the translation power driven system includes that first direction is adjusted
System and second direction regulating system, the first direction regulating system include fixed first motor and one on the base
The first rigid platfor of the positioning support is carried, the output shaft of the first motor is connect with a screw rod, and described first just
Mild-natured is threadedly engaged with the screw rod, by the rotation of the first motor output shaft, drives the rigid platfor along institute
The translational motion in screw rod direction is stated, and then drives the movement of the positioning support；The second direction regulating system includes the
Two motors and the second rigid platfor, identical as the structure of the first direction regulating system, arranged direction is vertical.
3. rock long-term creep according to claim 2 acts on lower micro-measure automatic tracking system, which is characterized in that institute
State rigid platfor by can along the direction relative motion perpendicular to the corresponding screw rod in a manner of bottom with the positioning support
Portion's connection.
4. rock long-term creep according to claim 3 acts on lower micro-measure automatic tracking system, which is characterized in that institute
The bottom for stating positioning support offers sliding slot perpendicular to the screw rod direction, and the side of the rigid platfor is equipped with and the cunning
The sliding rail of slot cooperation.
5. rock long-term creep according to claim 1 acts on lower micro-measure automatic tracking system, which is characterized in that institute
The connecting rod for stating positioning support is stretchy rod.
6. rock long-term creep according to claim 1 acts on lower micro-measure automatic tracking system, which is characterized in that institute
The bottom for stating positioning support is equipped with third direction regulating system comprising the third motor being fixed on the bottom support bracket, institute
The output shaft for stating third motor is connect with a screw rod, and the center of the positioning support is equipped with the screw thread cooperated with the screw rod
Hole；The automatic tracking system further includes the limit matching piece for limiting the positioning support and horizontally rotating, the limit matching piece
Including a Horizontal limiting plate and a gag lever post, the Horizontal limiting plate is fixed on the positioning support cross-section, which is provided with
To the via hole that the gag lever post passes through, the bottom end of the gag lever post is fixedly connected with the bottom support bracket, its other end is in certainly
By state.
7. rock long-term creep according to claim 1 acts on lower micro-measure automatic tracking system, which is characterized in that institute
The top for stating positioning support is equipped with fixed device, is equipped with rotary electric system, the rotary electric system in the fixed device
Including rotating electric machine and rotating platform, the thin sight optical camera is fixed on the rotating platform；The rotating electric machine it is defeated
Shaft is connect with screw rod, and the other end of the screw rod is fixedly connected with the rotating platform, the output of the rotating electric machine
Axis rotation, drives the rotation of the rotating platform in the horizontal plane.
8. rock long-term creep according to claim 1 acts on lower micro-measure automatic tracking system, which is characterized in that institute
It states control system to connect with each motor, the control system is by analyzing in the sample present image and early period image
The situation of change of heart regional location, according to the present image center and image center location early period conversed
Displacement and deflection angle control corresponding motor rotation, the thin sight optical camera are made to focus to the center of the present image
Regional location realizes the thin automatic focusing for seeing optical camera.
9. a kind of rock long-term creep acts on lower micro-measure automatic tracking method, comprising the following steps:
Thin optical camera of seeing is focused to the central area of sample；
In sample pressure process, the thin sight image of the sample is acquired；
The situation of change for analyzing the sample present image and picture centre region early period position, it is described current according to what is conversed
The displacement of image center location and image center location early period and deflection angle control corresponding motor rotation, make described
Thin optical camera of seeing is focused to the central area position of the present image, realizes the thin automatic focusing for seeing optical camera.
10. rock long-term creep according to claim 9 acts on lower micro-measure automatic tracking method, which is characterized in that
The focusing of the camera is adjusted by the rotation of control third motor to adapt to the variation of the displacement ordinate, pass through control the
The rotation of one motor, the second motor and rotating electric machine adjusts the focusing of the camera to adapt to the change of the displacement in the horizontal plane
Change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811028969.4A CN109342185A (en) | 2018-09-05 | 2018-09-05 | A kind of rock long-term creep acts on lower micro-measure automatic tracking system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811028969.4A CN109342185A (en) | 2018-09-05 | 2018-09-05 | A kind of rock long-term creep acts on lower micro-measure automatic tracking system and method |
Publications (1)
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| CN109342185A true CN109342185A (en) | 2019-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811028969.4A Pending CN109342185A (en) | 2018-09-05 | 2018-09-05 | A kind of rock long-term creep acts on lower micro-measure automatic tracking system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031292A (en) * | 2019-04-10 | 2019-07-19 | 上海交通大学 | The online instant measuring system and method for cylindrical structure fatigue growth of surface cracks |
| CN113686850A (en) * | 2021-07-15 | 2021-11-23 | 张丽 | Anti-radiation monitoring imaging system suitable for vacuum environment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209485856U (en) * | 2018-09-05 | 2019-10-11 | 中国科学院武汉岩土力学研究所 | A kind of lower micro-measure automatic tracking system of rock long-term creep effect |
-
2018
- 2018-09-05 CN CN201811028969.4A patent/CN109342185A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209485856U (en) * | 2018-09-05 | 2019-10-11 | 中国科学院武汉岩土力学研究所 | A kind of lower micro-measure automatic tracking system of rock long-term creep effect |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031292A (en) * | 2019-04-10 | 2019-07-19 | 上海交通大学 | The online instant measuring system and method for cylindrical structure fatigue growth of surface cracks |
| CN113686850A (en) * | 2021-07-15 | 2021-11-23 | 张丽 | Anti-radiation monitoring imaging system suitable for vacuum environment |
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