CN106556388A - The measurement apparatus of movement locus of object, measuring method and caliberating device - Google Patents
The measurement apparatus of movement locus of object, measuring method and caliberating device Download PDFInfo
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- CN106556388A CN106556388A CN201510627579.9A CN201510627579A CN106556388A CN 106556388 A CN106556388 A CN 106556388A CN 201510627579 A CN201510627579 A CN 201510627579A CN 106556388 A CN106556388 A CN 106556388A
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- 238000005259 measurement Methods 0.000 title claims abstract description 84
- 230000033001 locomotion Effects 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000006073 displacement reaction Methods 0.000 claims abstract description 84
- 230000000386 athletic effect Effects 0.000 claims abstract description 19
- 238000012546 transfer Methods 0.000 claims abstract description 4
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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
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/005—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 with correlation of navigation data from several sources, e.g. map or contour matching
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
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Abstract
A kind of measurement apparatus of movement locus of object, for the movement locus of tested point in Measuring Object, measurement apparatus include base plate, three stay-supported type displacement sensors and data processor, three stay-supported type displacement sensors are separately fixed on base plate, each stay-supported type displacement sensor is provided with bracing wire, each bracing wire is pulled out from corresponding stay-supported type displacement sensor, each bracing wire is used to be fixed on same tested point away from one end of stay-supported type displacement sensor, each stay-supported type displacement sensor is used for tensile elongation of the bracing wire that is connected with the stay-supported type displacement sensor of measurement at each moment, and by tensile elongation data transfer to data processor, data processor is for being processed and drawn movement locus of the tested point at each moment to the tensile elongation data of three stay-supported type displacement sensors feedback.The measurement apparatus provided by the present invention can relatively accurately measure the athletic posture of movement locus and object under test of the tested point in motor process in motor process.
Description
Technical field
The present invention relates to the technical field of the measurement of movement locus of object, especially a kind of movement locus of object
Measurement apparatus, the measuring method of movement locus of object and for being demarcated to the measurement apparatus
Caliberating device.
Background technology
During vehicle movement, the fortune of each part such as object such as automobile power assembly, front-rear axle of vehicle
In dynamic attitude and suspension swing arm, the movement locus of certain point all can affect to the motion of vehicle.Example
Such as in vehicle R＆D process, abnormal sound this thorny difficult problem is frequently encountered, abnormal sound typically occurs in various
Under limiting condition.By the movement locus and athletic posture that measure moving component, can be easily determined each
Gap between part, carries out position adjustment by the part too small to gap, you can when avoiding extreme sport
Interference, so as to eliminate because interfere produce abnormal sound.And for example automobile power assembly, such as transverse engine
The athletic posture of top rake the normal work of electromotor can be played the role of important, start in the quiescent state
The angle of inclination of machine typically all meets the requirements, but when running into the operating modes such as turning, braking, if electromotor
Suspension Rigidity Matching is improper, it is more likely that causes engine lubrication system exception, works long hours, having can
Engine damage can be caused.Therefore, in vehicle R＆D process, in needing measuring vehicle, each part is in vehicle
Athletic posture or running orbit during operation, so as to the athletic posture of each part or operation in vehicle
Track is adjusted.
In the prior art, it is desirable to learn the athletic posture or running orbit of each part on vehicle, mainly according to
By Theoretical Calculation or laboratory static measurement.But vehicle is during turning, braking, crossing hole etc.,
The part of vehicle all can be in the motion of fierceness because of the impact by fierceness, and static in prior art
Test cannot analog component impact, therefore also just have no idea to come decision theory and whether reasonable calculate.
In dynamic test, a kind of modal method measures one exactly with a displacement transducer
The displacement in direction, however, this kind of method only can with Measuring Object only along a certain coordinate axess translation when displacement
Amount, but the motion of the spatial point on vehicle part be in a three-dimensional motion, therefore its motion
Track is one in the momental combination in vertical, longitudinal and horizontal three directions.Now, when adopting displacement
Measuring UUT in the displacement of a direction, the UUT is in two other direction for sensor
Mobile meeting be coupled with measurement direction or be produced and be interfered, and make measurement apparatus be difficult to accurately be surveyed
Amount result.
The content of the invention
It is an object of the invention to provide a kind of measurement apparatus of movement locus of object, measuring method and demarcation
Device, can relatively accurately measure movement locus of the tested point in motor process and object under test in fortune
Athletic posture during dynamic.
The present invention provides a kind of measurement apparatus of movement locus of object, for the fortune of tested point in Measuring Object
Dynamic rail mark, the measurement apparatus include base plate, three stay-supported type displacement sensors and data processor, institute
State three stay-supported type displacement sensors to be separately fixed on the base plate, each stay-supported type displacement sensor
Bracing wire is provided with, each bracing wire is pulled out from corresponding stay-supported type displacement sensor, and each bracing wire is away from institute
The one end for stating stay-supported type displacement sensor is used to be fixed on same tested point, and each stay-supported displacement is passed
Sensor is used for tensile elongation of the bracing wire that is connected with the stay-supported type displacement sensor of measurement at each moment, and
The data processor is given by tensile elongation data transfer, the data processor is for described three drawings
The tensile elongation data of wire type displacement transducer feedback are processed and are drawn the tested point at each moment
Movement locus.
Further, three fixing point compositions of three stay-supported type displacement sensors on the base plate
One triangle.
Further, three stay-supported type displacement sensors are in equilateral triangle on the base plate or wait
Waist right angled triangle is laid.
Present invention also offers a kind of measuring method of movement locus of object, for tested point in Measuring Object
Movement locus, the movement locus of object described in any one that the measuring method is provided using the present invention
Measurement apparatus, and comprise the steps：
The bracing wire of each stay-supported type displacement sensor in measurement apparatus is all secured on tested point；
According to bracing wire in three stay-supported type displacement sensors in measurement apparatus, respective stretching is grown at any time
Degree, calculates coordinate of the tested point in any time；And
By measuring tested point in several coordinates not in the same time, and by tested point in seat not in the same time
Mark carries out line, that is, obtain the movement locus of tested point.
Further, in measurement process, also include with three stay-supported type displacement sensors in measurement apparatus
The plane that is located of three fixing points set up rectangular coordinate system in space, and root as one of coordinate plane
Three fixing points respective coordinate in the coordinate system is drawn first according to the distance between each two fixing point, so
Afterwards further according to the respective tensile elongation at any time of bracing wire in three stay-supported type displacement sensors, calculate
Go out tested point coordinate in any time in the coordinate system.
Further, when rectangular coordinate system in space is set up, specifically with three stay-supported type displacement sensors
The plane at three fixing point places sets up rectangular coordinate system in space as XY coordinate planes, and with wherein
One fixing point is origin, and makes to be located at which with the line of another fixing point positioned at the fixing point of origin
In on a coordinate axess, and the 3rd fixing point is located in XY coordinate planes.
Further, three tested points are chosen on object altogether, and utilizes three sets such as claims 1 to 3
Three tested points of the measurement apparatus described in middle any one respectively to choosing carry out movement locus measurement, with
Obtain the athletic posture of the object.
Present invention also offers a kind of caliberating device, for the movement locus of object measurement provided to the present invention
Device is demarcated, the caliberating device include the first adjustable plate, the second adjustable plate, the 3rd adjustable plate and
Slide block, first adjustable plate are arranged along a first direction and are fixed on the base plate of the measurement apparatus,
Second adjustable plate is arranged along second direction and is slidably attached on first adjustable plate, institute
State the second adjustable plate to slide along the first direction relative to first adjustable plate, the described 3rd adjusts
Section plate is arranged along third direction and is slidably attached on second adjustable plate, and the described 3rd is adjusted
Plate can slide along the second direction relative to second adjustable plate, and the slide block is slidably connected
On the 3rd adjustable plate, the slide block can be along the third direction relative to the 3rd adjustable plate
Slide, each bracing wire in the measurement apparatus is fixed on away from one end of the stay-supported type displacement sensor
On the slide block.
Further, first adjustable plate is vertically fixed on the base plate, second adjustable plate with
The base plate is parallel, and the 3rd adjustable plate is parallel with the base plate, and the 3rd adjustable plate with it is described
Second adjustable plate is mutually perpendicular to, and one end of the 3rd adjustable plate is slidably attached at described second and adjusts
On plate.
Further, the 3rd adjustable plate along its length on be provided with chute, the slide block is embedded
In the chute.
In sum, in the present invention, by three stay-supported type displacement sensors are arranged in measurement apparatus,
And the bracing wire of three stay-supported type displacement sensors is commonly connected on the tested point of space, using each bracing wire
Tensile elongation can measure tested point spatial coordinate location at any time, for the tested point of motion,
By measuring tested point in several coordinates not in the same time, tested point is carried out in coordinate not in the same time
Line, you can to obtain movement locus of the tested point in space and right respectively by many set measurement apparatus
The movement locus of multiple tested points are measured, and can also draw athletic posture of the object in space, by this
The measurement apparatus that invention is provided can relatively accurately measure movement locus of the tested point in motor process
And athletic posture of the object under test in motor process.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the skill of the present invention
Art means, and being practiced according to the content of description, and in order to allow the above and other of the present invention
Objects, features and advantages can become apparent, and below especially exemplified by preferred embodiment, and coordinate accompanying drawing, in detail
Carefully it is described as follows.
Description of the drawings
The structural representation of the measurement apparatus of the movement locus of object that Fig. 1 is provided for the present invention.
Structured flowcharts of the Fig. 2 for the measurement apparatus of Fig. 1.
Fig. 3 is schematic diagram of the measurement apparatus of Fig. 1 when the movement locus of tested point are measured.
Fig. 4 is schematic diagram when measuring to the athletic posture of object with the measurement apparatus of Fig. 1.
Fig. 5 is the structure of the caliberating device demarcated provided by the present invention for the measurement apparatus to Fig. 1
Schematic diagram.
Partial structurtes enlarged drawings of the Fig. 6 for the caliberating device of Fig. 5.
Specific embodiment
Further to illustrate the present invention to reach technological means and effect that predetermined goal of the invention is taken,
Below in conjunction with accompanying drawing and preferred embodiment, it is as follows that the present invention is described in detail.
Any point when measurement apparatus of movement locus of object provided by the present invention can be moved with Measuring Object
Movement locus, be mainly used in the measurement of space object athletic posture or spatial point movement locus, it is main suitable
For automobile power assembly, front-rear axle etc., these scopes are also not limited to, for example, apply also for excavator
The movement locus measurement of bucket.The structure of the measurement apparatus of the movement locus of object that Fig. 1 is provided for the present invention
Schematic diagram, structured flowcharts of the Fig. 2 for the measurement apparatus of Fig. 1, as shown in Figures 1 and 2, the present invention is carried
For measurement apparatus 100 include base plate 110, stay-supported type displacement sensor 120 and data processor 130,
The quantity of stay-supported type displacement sensor 120 is three, respectively the first stay-supported type displacement sensor 121,
Second stay-supported type displacement sensor 122 and the 3rd stay-supported type displacement sensor 123, three stay-supported displacements
Sensor 120 is both secured on base plate 110, wherein the first stay-supported type displacement sensor 121 is fixed on bottom
At A points position on plate 110, the second stay-supported type displacement sensor 122 is fixed on the B on base plate 110
At point position, the 3rd stay-supported type displacement sensor 123 is fixed at the points of the C on base plate 110 position.Often
One stay-supported type displacement sensor 120 is provided with bracing wire 124, and each bracing wire 124 is from corresponding stay-supported
Pull out in displacement transducer 120.The movement locus of certain point on object are being carried out using the measurement apparatus
During measurement, each bracing wire 124 is both secured to object under test away from one end of stay-supported type displacement sensor 120
Same point on and each bracing wire 124 be in tension, each stay-supported type displacement sensor 120
For measuring tensile elongation of the bracing wire 124 being connected with the stay-supported type displacement sensor 120 at each moment,
And by tensile elongation data transfer to data processor 130,130 pairs of three stay-supported positions of data processor
The tensile elongation data of the feedback of displacement sensor 120 carry out integrated treatment and calculate so as to obtain on object under test
Measurement point in the space coordinatess at each moment, and then obtain the movement locus of the measurement point.
Fig. 3 is schematic diagram of the measurement apparatus of Fig. 1 when the movement locus of tested point are measured, such as Fig. 3 institutes
Show, when the movement locus of tested point (D points as shown in Figure 3) are measured, by each stay-supported position
The bracing wire 124 of displacement sensor 120 is all secured on tested point D (i.e. three stay-supported type displacement sensors 120
Fixing point A, B, C constitute a triangle, three fixing points A, B, C and tested point D composition
One triangular pyramid), and the distance between each fixing point of three stay-supported type displacement sensors 120 is measured,
That is the distance between 2 points of AC, BC and AB is respectively a1, a2And a3。
Then the plane being located using three fixing points A, B, C sets up space right-angle as XY coordinate planes
Coordinate system, for the ease of calculating, the fixing point (i.e. A points) with the first stay-supported type displacement sensor 121
For origin, and make the fixing point (i.e. A points) and the second stay-supported of the first stay-supported type displacement sensor 121
The line of the fixing point (i.e. B points) of displacement transducer 122 is located on Y-axis, and the 3rd stay-supported position
In XY coordinate planes, now the coordinate of A points is the fixing point (i.e. C points) of displacement sensor 123
(0,0,0), the coordinate of B points is (0, a3, 0).
By length a on each side of AC, BC and AB in the triangle of 3 points of compositions of ABC1、a2、a3And
The coordinate that 2 point of A, B (0,0,0), (0, a3, 0), you can draw C points coordinate (h, m, 0),
Its computing formula is：
Wherein：Abscissa and vertical coordinate of the h and m for C points；
a1, a2And a3Respectively the distance between 2 points of AC, BC and AB.
According to the tensile elongation numerical value of bracing wire 124 on three stay-supported type displacement sensors 120, take with for the moment
The tensile elongation of bracing wire 124 on the first stay-supported type displacement sensor 121 is carved (i.e. between 2 points of AD
Distance) for l1, tensile elongation (the i.e. BD two of bracing wire 124 on the second stay-supported type displacement sensor 122
The distance between point) for l3, on the 3rd stay-supported type displacement sensor 123, the tensile elongation of bracing wire 124 is (i.e.
The distance between 2 points of CD) for l2, it is assumed that moment D point coordinate be (x, y, z).Then basis
Computing formula：
x2+y2+z2=l1 2
(x-h)2+(y-m)2+z2=l2 2
x2+(y-a3)2+z2=l3 2
Coordinate of the D points at the moment is obtained, i.e.,：
Wherein, x, y, z are respectively the abscissa of D points, vertical coordinate and ordinate；
H and m is respectively the abscissa and vertical coordinate of C points；
l1, l2And l3Distance respectively between 2 points of synchronization AD, CD and BD.
D points coordinate (x, y, z) at a time is obtained by above-mentioned calculating, by determining D
The coordinate of point is can determine that in the position of moment D point, for the D points of continuous motion, if being then obtained
The coordinate of each moment D point is connected into a curve by a dry coordinate, you can learn that D points (namely are treated
Measuring point) movement locus.
In order to more easily calculate the coordinate of D points, it is preferable that the trianglees of 3 points of ABC composition can be with
For equilateral triangle or isosceles right triangle.
When the triangle of 3 points of compositions of ABC is equilateral triangle (i.e. a1=a2=a3=a) when, now：
It may thus be appreciated that the coordinate of D points is：
Wherein：l1, l2And l3Distance respectively between 2 points of synchronization AD, CD and BD；
A is the distance between 2 points of AC, BC and AB.
When the trianglees of 3 points of ABC composition are isosceles right triangle, i.e. the coordinate of B points for (0, a,
0), the coordinate of C points for (a, 0, when 0), now：
H=a
M=0
It may thus be appreciated that the coordinate of D points is：
Wherein：l1, l2And l3Distance respectively between 2 points of synchronization AD, CD and BD；
A is the distance between 2 points of AB and AC.
Therefore, the present invention also provides a kind of measuring method of movement locus of object, and which uses above-mentioned object
The measurement apparatus of movement locus, for measuring the movement locus of the tested point D on object, the measuring method
Comprise the steps：
The bracing wire 124 of each stay-supported type displacement sensor 120 in measurement apparatus 100 is all secured to treat
On measuring point D；
According to bracing wire 124 in three stay-supported type displacement sensors 120 in measurement apparatus 100 at any time
Respective tensile elongation l1、l2、l3, calculate coordinates of the tested point D in any time；And
By measuring tested point D in several coordinates not in the same time, and by tested point D not in the same time
Coordinate carry out line, that is, obtain the movement locus of tested point D.
Further, in measurement process, also include passing with three stay-supported displacements in measurement apparatus 100
The plane that three fixing points A, B, C of sensor 120 are located sets up space as one of coordinate plane
Rectangular coordinate system, and three fixations are first drawn according to the distance between each two fixing point AB, AC, BC
Point A, B, C respective coordinate in the coordinate system, then further according to three stay-supported type displacement sensors
Respective tensile elongation l at any time of bracing wire 124 in 1201、l2、l3, calculate tested point D and exist
Any time coordinate in the coordinate system.
Further, when rectangular coordinate system in space is set up, specifically with three stay-supported type displacement sensors 120
The plane that is located of three fixing points A, B, C set up rectangular coordinate system in space as XY coordinate planes,
And for the ease of calculating, with fixing point A as origin, and make the line position of fixing point A and fixing point B
On a wherein coordinate axess, and fixing point C is located in XY coordinate planes.
Further, the triangle of three fixing point A, B, C compositions is equilateral triangle or isosceles right angle
Triangle, with simplified mathematical model.
As described above, the movement locus of a tested point D can be measured using a set of measurement apparatus 100, and
According to three-point fix principle, if three tested points are chosen on object, using 100 points of three sets of measurement apparatus
Other three tested points to choosing carry out movement locus measurement, then can obtain object fortune spatially
Dynamic attitude.
Fig. 4 is schematic diagram when measuring to the athletic posture of object with the measurement apparatus of Fig. 1, such as
Shown in Fig. 4, three tested points using three sets of measurement apparatus 100 respectively to choosing on object are transported altogether
Dynamic trajectory measurement, so as to obtain object athletic posture spatially.Specifically, the embodiment of the present invention
In illustrated as a example by measuring the athletic posture of electromotor 300, but be not limited.This three sets measurements
The base plate 110 of device 100 is fixed on vehicle body 400, often covers three stay-supported positions in measurement apparatus 100
The bracing wire 124 of displacement sensor 120 is all secured on a corresponding tested point, and three tested points for example may be used
To be chosen on the not ipsilateral of electromotor 300, using three sets of measurement apparatus 100 test respectively this three
The coordinate of individual tested point, obtains movement locus of three tested points at each moment, and then is started
Athletic posture of the machine 300 at each moment.
It should be noted that the coordinate above by calculated tested point D is relative to space right-angle
The coordinate of coordinate system.For the measuring system being assembled into shown in Fig. 4, certain point on object is if desired obtained
Absolute coordinate (car load coordinate system), then need a series of Coordinate Conversion；But, in CATIA etc. three
Dimension software in, as long as determine three sets of measurement apparatus 100 installation site and three measured points relative to
The coordinate of measuring system, can obtain the absolute coordinate of the unknown point using the survey tool in software, therefore
No longer this is repeated herein.
In addition, in order to ensure the measurement accuracy of measurement apparatus 100, the present invention also provides a kind of for right
The caliberating device demarcated by measurement apparatus 100.Fig. 5 is provided by the present invention for the measurement to Fig. 1
The structural representation of the caliberating device demarcated by device, partial structurtes of the Fig. 6 for the caliberating device of Fig. 5
Enlarged drawing, as shown in Figures 5 and 6, caliberating device 200 includes that the first adjustable plate 210, second is adjusted
Plate 220, the 3rd adjustable plate 230 and slide block 240.In the present embodiment, the first adjustable plate 210 is along upper
The Z-direction stated in the coordinate system of setting is arranged, and the second adjustable plate 220 is along the X-axis in the coordinate system
Direction is arranged, and the 3rd adjustable plate 230 is arranged along the Y direction in the coordinate system.
Specifically, the first adjustable plate 210 arrange along Z-direction and pass through fixing device (such as bolt,
It is not shown) it is fixed on the base plate 110 of measurement apparatus 100, further, the first adjustable plate 210 hangs down
Directly it is fixed on base plate 110 and is located on the edge of 110 side of base plate；Second adjustable plate 220 is along X
Direction of principal axis is arranged and is slidably attached on the first adjustable plate 210, the second adjustable plate 220 and base plate 110
It is parallel, slide rail and chute are provided between the second adjustable plate 220 and the first adjustable plate 210, make the second tune
Section plate 220 can slide along Z-direction relative to the first adjustable plate 210, such as in the first adjustable plate 210
Vertical direction on slide rail is set, the chute coordinated with the slide rail is set on the second adjustable plate 220；The
Three adjustable plates 230 are arranged along Y direction and are slidably attached on the second adjustable plate 220, the 3rd
Adjustable plate 230 is parallel with base plate 110, and the 3rd adjustable plate 230 is mutually perpendicular to the second adjustable plate 220,
One end of 3rd adjustable plate 230 is slidably attached on the second adjustable plate 220, the 3rd adjustable plate 230
Slide rail and chute are provided between the second adjustable plate 220, the 3rd adjustable plate 230 is adjusted relative to second
Section plate 220 can slide along X-direction, such as arrange in the X-direction of the second adjustable plate 220 and slide
Rail, arranges the chute coordinated with the slide rail on one end of the 3rd adjustable plate 230.
Please join Fig. 6, slide block 240 is slidably attached on the 3rd adjustable plate 230, and slide block 240 is relative
Can slide along Y direction in the 3rd adjustable plate 230.Specifically, in the present embodiment, adjust the 3rd
Section plate 230 along its length on be provided with chute 250, slide block 240 is embedded in chute 250, makes
Slide block 240 can slide in chute 250, and chute 250 can specifically be arranged on the 3rd adjustable plate 230
Bottom.Each bracing wire 124 of measurement apparatus 100 is fixed away from one end of stay-supported type displacement sensor 120
On slide block 240, each bracing wire 124 is driven to move by slide block 240.
When being demarcated to measurement apparatus 100 using caliberating device 200, in above-mentioned rectangular space coordinate
In system, by the position for adjusting the second adjustable plate 220, the 3rd adjustable plate 230 and slide block 240, so as to
Change slide block 240 (that is, tested point D points) position spatially, D points is sat in space right-angle
On any one coordinate in mark system, and the actual coordinate of D points is measured by survey tool；Meanwhile, will
The tensile elongation of bracing wire 124 on three stay-supported type displacement sensors 120, brings the meter of above-mentioned D point coordinates into
Calculate in formula, by the coordinates computed for calculating D points；Finally the calculating of the D for calculating points is sat
Mark is contrasted with the actual coordinate of D points, to learn the tested point position measured by the measurement apparatus 100
Whether accurately, and according to comparing result, stay-supported type displacement sensor 120 is adjusted.
Further, in the present embodiment, one end of slide block 240 is dovetail-shape, in the 3rd adjustable plate 230
The chute 250 of upper setting is also dovetail-shape, and the swallow-tail form end of slide block 240 is embedded in the chute of swallow-tail form
In 250, the other end of slide block 240 is exposed to chute 250 end for connecting each bracing wire 124.
It is to be appreciated that for the ease of the second adjustable plate 220 relative to the slip of the first adjustable plate 210 and
Be easy to the 3rd adjustable plate 230 relative to the slip of the second adjustable plate 220, be arranged on the first adjustable plate 210,
Chute or slide rail on second adjustable plate 220 or the 3rd adjustable plate 230 is it can also be provided that swallow-tail form.
In sum, in the present invention, by three stay-supported type displacement sensors are arranged in measurement apparatus,
And the bracing wire of three stay-supported type displacement sensors is commonly connected on the tested point of space, using each bracing wire
Tensile elongation can measure tested point spatial coordinate location at any time, for the tested point of motion,
By measuring tested point in several coordinates not in the same time, tested point is carried out in coordinate not in the same time
Line, you can to obtain movement locus of the tested point in space and right respectively by many set measurement apparatus
The movement locus of multiple tested points are measured, and can also draw athletic posture of the object in space, by this
The measurement apparatus that invention is provided can relatively accurately measure movement locus of the tested point in motor process
And athletic posture of the object under test in motor process.
The above, is only presently preferred embodiments of the present invention, not makees any formal to the present invention
Restriction, although the present invention is disclosed above with preferred embodiment, but is not limited to the present invention,
Any those skilled in the art, in the range of without departing from technical solution of the present invention, when using upper
The technology contents for stating announcement are made a little change or are modified to the Equivalent embodiments of equivalent variations, as long as being not
Depart from technical solution of the present invention content, it is any that foundation technical spirit of the invention is made to above example
Simple modification, equivalent variations and modification, still fall within the range of technical solution of the present invention.
Claims (10)
1. a kind of measurement apparatus of movement locus of object (100), for the motion of tested point in Measuring Object
Track, it is characterised in that：The measurement apparatus (100) include base plate (110), three stay-supported displacements
Sensor (120) and data processor (130), three stay-supported type displacement sensors (120) point
It is not fixed on the base plate (110), each stay-supported type displacement sensor (120) is provided with bracing wire
(124), each bracing wire (124) is pulled out from corresponding stay-supported type displacement sensor (120), each drawing
Line (124) is fixed on same tested point away from one end of the stay-supported type displacement sensor (120),
Each stay-supported type displacement sensor (120) is for measurement and the stay-supported type displacement sensor (120) phase
Tensile elongation of the bracing wire (124) even at each moment, and the data are given by tensile elongation data transfer
Processor (130), the data processor (130) is for three stay-supported type displacement sensors (120)
The tensile elongation data of feedback are processed and are drawn movement locus of the tested point at each moment.
2. measurement apparatus (100) of movement locus of object according to claim 1, it is characterised in that：
Three fixing point compositions of three stay-supported type displacement sensors (120) on the base plate (110)
One triangle.
3. measurement apparatus (100) of movement locus of object according to claim 2, it is characterised in that：
Three stay-supported type displacement sensors (120) are in equilateral triangle on the base plate (110) or wait
Waist right angled triangle is laid.
4. a kind of measuring method of movement locus of object, for the movement locus of tested point in Measuring Object,
It is characterized in that：The measuring method is transported using the object as described in any one in claims 1 to 3
The measurement apparatus (100) of dynamic rail mark, and comprise the steps：
By the bracing wire (124) of each stay-supported type displacement sensor (120) in measurement apparatus (100)
It is fixed on tested point；
Existed according to bracing wire (124) in upper three stay-supported type displacement sensors (120) of measurement apparatus (100)
Any time respective tensile elongation, calculates coordinate of the tested point in any time；And
By measuring tested point in several coordinates not in the same time, and by tested point in seat not in the same time
Mark carries out line, that is, obtain the movement locus of tested point.
5. the measuring method of movement locus of object according to claim 4, it is characterised in that：Surveying
During amount, also include with the three of upper three stay-supported type displacement sensors (120) of measurement apparatus (100)
The plane that individual fixing point is located sets up rectangular coordinate system in space as one of coordinate plane, and according to every
The distance between two fixing points first draw three fixing points respective coordinate in the coordinate system, Ran Houzai
According to bracing wire (124) in three stay-supported type displacement sensors (120), respective stretching is grown at any time
Degree, calculates tested point coordinate in any time in the coordinate system.
6. the measuring method of movement locus of object according to claim 5, it is characterised in that：Building
During vertical rectangular coordinate system in space, specifically with three fixing point institutes of three stay-supported type displacement sensors (120)
Plane set up rectangular coordinate system in space as XY coordinate planes, and with one of fixing point be
Origin, and make to be located therein on a coordinate axess positioned at the fixing point of origin and the line of another fixing point,
And the 3rd fixing point is located in XY coordinate planes.
7. the measuring method of movement locus of object according to claim 4, it is characterised in that：In thing
Choose three tested points on body altogether, and using three sets of surveys as described in any one in claims 1 to 3
Three tested points of amount device (100) respectively to choosing carry out movement locus measurement, to obtain the object
Athletic posture.
8. a kind of caliberating device, it is characterised in that：The caliberating device is in claims 1 to 3
The measurement apparatus (100) of the movement locus of object described in any one are demarcated, the caliberating device bag
The first adjustable plate (210), the second adjustable plate (220), the 3rd adjustable plate (230) and slide block (240) are included,
First adjustable plate (210) arranges along a first direction and is fixed on the measurement apparatus (100)
On base plate (110), second adjustable plate (220) arranges along second direction and is slidably connected
On first adjustable plate (210), second adjustable plate (220) is adjusted relative to described first
Plate (210) can slide along the first direction, and the 3rd adjustable plate (230) is along third direction
Arrange and be slidably attached on second adjustable plate (220), the 3rd adjustable plate (230)
Can slide along the second direction relative to second adjustable plate (220), the slide block (240)
It is slidably attached on the 3rd adjustable plate (230), the slide block (240) is relative to described
Three adjustable plates (230) can slide along the third direction, each on the measurement apparatus (100)
Bracing wire (124) is fixed on the slide block (240) away from one end of the stay-supported type displacement sensor (120)
On.
9. caliberating device according to claim 8, it is characterised in that：First adjustable plate (210)
It is vertically fixed on the base plate (110), second adjustable plate (220) and the 3rd adjustable plate
(230) it is parallel with the base plate (110), and the 3rd adjustable plate (230) and the described second regulation
Plate (220) is mutually perpendicular to, and one end of the 3rd adjustable plate (230) is slidably attached at described
On two adjustable plates (220).
10. caliberating device according to claim 8, it is characterised in that：3rd adjustable plate (230)
Chute (250) is provided with along its length, the slide block (240) is embedded at the chute (250)
In.
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Application publication date: 20170405 |