CN105784271B - The caliberating device and scaling method of three component sensors - Google Patents
The caliberating device and scaling method of three component sensors Download PDFInfo
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- CN105784271B CN105784271B CN201610353557.2A CN201610353557A CN105784271B CN 105784271 B CN105784271 B CN 105784271B CN 201610353557 A CN201610353557 A CN 201610353557A CN 105784271 B CN105784271 B CN 105784271B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
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Abstract
The invention discloses a kind of caliberating device and scaling method of three component sensor, the caliberating device includes：Support base；It is rotatably connected on the crossbeam on the support base by shaft；The extension iron being movably connected on the crossbeam；It is fixedly mounted on the crossbeam and by single component sensor of accurate calibration；With the relatively-stationary pedestal in position of the support base；The three component sensors to be calibrated being arranged in below single component sensor, and its dynamometry end is connected by the rope tightened vertically with the dynamometry end of single component sensor；The laser range finder of distance value x between center of gravity and the central axes of the shaft for measuring the extension iron；It can be connected to transverse shifting on the crossbeam and can measure the level meter of the angle theta between the crossbeam and horizontal line；The data collecting system being all connected with single component sensor and three component sensors；And the data processing system being all connected with the data collecting system, laser range finder and level meter.The caliberating device and scaling method of the present invention can carry out accurate Fast Calibration to three component sensors of different size different models on three directions of x, y, z.
Description
Technical field
The present invention relates to ocean engineering and mechanical engineering field, more particularly, to used in Naval Architecture and Ocean Engineering experiment not
With the caliberating device and scaling method in three three orientation of component sensor x, y, z of size.
Background technology
In Naval Architecture and Ocean Engineering and mechanical engineering field, experiment plays an increasingly important role.Experimental result is not
Be only capable of examining theory analysis as a result, can also be continued to optimize as the test basis of method for numerical simulation, logarithm simulation model,
Therefore experiment also becomes scientific research and the indispensable link of engineering field.The acquisition of the acquisition of data, especially power
An important part in even more testing, the acquisition of the data of power is in the experiment of stormy waves stream, slamming experiment, structural strength control experiment
All it is highly important.Power is measured by three component sensors or single component sensor at this stage.And sensor makes
With must first demarcate before.By calibration, lab assistant can obtain static demarcating curve, determine the electricity output of sensor
And by the correspondence between dynamometry, and linear coefficient is calculated, is used for data collecting system.
However there are low precision, complicated for operation, nothings for laboratory and engineering unit sensor calibration apparatus and method at this stage
Method realizes the problems such as the multi-faceted calibration of the more size range sensors of multrirange.In addition, caliberating device does not have data mostly
Processing system.
These problems are in particular in：
1) since staking-out work was both related with instrument self character, also with the company of practical many material elements such as instruments
Connect, install, arrange it is related, while also by various environmental factors interfere, this makes many caliberating device precision very poor.
2) many caliberating device fixed part designs are unreasonable, lead to the biography that can only fix specific standard in one direction
Sensor, so that it cannot realize the multi-faceted calibration of the more size range sensors of multrirange.
3) many laboratories are demarcated using the method directly counterweight placed or hung on a sensor, this causes calibrated
Counterweight is constantly added in journey, so that proving operation is become sufficiently complex, be also more also easy to produce error.
4) caliberating device of many three component sensors does not have data processing integrating device, and experimenter is caused to remember by hand
The size of electric signal and power is recorded, then static demarcating curve is calculated in the later stage.This also makes calibration process more complicated.While this
It is very big to result in nominal time loss, influences experiment progress.
Invention content
Purpose of the present invention is to：In view of the above technical problems, a kind of caliberating device of three component sensor of proposition and calibration side
Method carries out accurate Fast Calibration with the three component sensors to different size different models on three directions of x, y, z.
The technical scheme is that：The caliberating device of the three component sensors, including：
Support base；
Along the crossbeam of X-direction horizontal extension arrangement, the middle part of the crossbeam along Y direction by being disposed to extend shaft rotation
It is connected on the support base；
It is connected on the crossbeam and can be along the extension iron of the length direction transverse shifting of the crossbeam；
It is fixedly mounted on the crossbeam and by single component sensor of accurate calibration, the extension iron and the list component
Sensor is arranged in left and right two opposite side of the shaft；
With the relatively-stationary pedestal in position of the support base, it is provided with for fixing three component of various models on the pedestal
Three component fixing structure of sensor of sensor；
The three component sensors to be calibrated being arranged in below single component sensor, the three component sensor) pass through
The three component fixing structure of sensor is removably attached on the pedestal, and its dynamometry end by the rope tightened vertically with
The dynamometry end of the list component sensor is connected；
The laser range finder of distance value x between center of gravity and the central axes of the shaft for measuring the extension iron, this swashs
Optar is mounted on the crossbeam and at the shaft；
It can be connected to transverse shifting on the crossbeam and can measure the water of the angle theta between the crossbeam and horizontal line
Level；
The data collecting system being all connected with single component sensor and three component sensors, the data collecting system obtain
Take institute's dynamometry value of the institute dynamometry value F ' and the three component sensor of single component sensor, and by single component sensor
Institute's dynamometry value is converted into corresponding mechanics electric signal numerical value U ' and exports outward, and institute's dynamometry value of three component sensors is converted into phase
The mechanics electric signal numerical value U answered is exported outward；And
The data processing system being all connected with the data collecting system, laser range finder and level meter, the data processing
System receives the mechanics electric signal numerical value U ' and the mechanics electric signal numerical value U, described of data collecting system output
The crossbeam hung measured by iron center of gravity to the distance value x of shaft central axes, the level meter measured by laser range finder with it is horizontal
Angle theta between line, and data processing system can calculate described single point according to received mechanics electric signal numerical value U '
The institute dynamometry value F ' of force snesor, while can be according to the received distance value x for hanging iron center of gravity to shaft central axes, crossbeam
Angle theta between horizontal line, the dead weight G for pre-entering the extension iron in the data processing system calculate the three component sensor
Vertical direction theory stress value F.
This caliberating device of the present invention further includes following preferred embodiment based on the above technical solution：
The data processing system has the institute that can show the mechanics electric signal numerical value U ', single component sensor
The display list of the vertical direction theory stress value F of dynamometry value F ', the mechanics electric signal numerical value U and the three component sensor
Member.
The pedestal includes horizontally disposed bottom plate and the riser that is vertically fixed on above the bottom plate, the three component sensing
Device fixed structure includes the 8 vertical through-holes for wearing screw being formed on the bottom plate, is formed on the riser and is used for
Wear 8 horizontal through hole of screw.
The aperture of the vertical through-hole and horizontal through hole is 5mm.
In described 8 vertical through-holes, wherein 4 vertical through-holes are arranged in the periphery of other 4 vertical through-holes, and it is interior
4 vertical rectangular distributions of through-hole of the vertical through-hole of 4 of side and periphery；In 8 horizontal through hole, wherein 4
Horizontal through hole is arranged in the periphery of other 4 horizontal through hole, and 4 horizontal through hole of inside and 4 horizontal through hole of periphery are equal
Rectangular distribution.
The crossbeam includes by the left-half of the shaft central axes to crossbeam left side and by the shaft axis
Line is provided with three be evenly spaced on along crossbeam length direction in the left-half to the right half part of crossbeam right side
The left-half of crossbeam is divided into the consistent extension iron moving section of four segment length by graticule, this three graticules.
The equal length of the left-half and right half part, the list component sensor arrangement is in the crossbeam
Right part.
The data processing system is microcontroller.
This method for demarcating three component sensors using above-mentioned caliberating device of the present invention, includes the following steps：
Step 1: the mobile position for hanging iron on the crossbeam, until the registration of the laser range finder is zero；
Step 2: by adjusting lateral position of the level meter on the crossbeam, the crossbeam is adjusted to level；
Step 3: the dynamometry end of three component sensor to be calibrated and the dynamometry end of single component sensor are connected with rope
It connects, and the rope is made to tighten；
Step 4: by adjusting lateral position of the level meter on the crossbeam, the crossbeam is again adjusted to
It is horizontal；
Step 5: hang iron described in transverse shifting reads the number to a certain position after the registration of the level meter is stablized
According to institute dynamometry value F ', the mechanics of the mechanics electric signal numerical value U ', single component sensor that are shown in processing system
The vertical direction theory stress value F of electric signal numerical value U and the three component sensor；
Step 6: the institute dynamometry value F ' of list component sensor described in comparison step five and erecting for the three component sensor
Histogram is to theoretical stress value F, if the vertical side of the institute dynamometry value F ' and the three component sensor of the list component sensor
To theoretical stress value F differences within 1%, then by the vertical direction theory stress value F of the three component sensor and the power
Electric signal numerical value U is learned to be demarcated；If the institute dynamometry value F ' of the list component sensor and erecting for the three component sensor
Histogram differs by more than 1% to theoretical stress value F, then repeating said steps five and step 6；
Step 7: repeating said steps five and step 6, obtain the mechanics electric signal numerical value U and are sensed with three component
The calibration curve of the vertical direction theory stress value F of device.
It is an advantage of the invention that：
1, this caliberating device of the present invention utilizes lever principle, makes to be calibrated three component sensing by the mobile position for hanging iron
Device is realized the calibration in three three directions of component sensor, and be equipped with accurate calibration function by different size of pulling force
Data processing system, have many advantages, such as high certainty of measurement, time-saving and efficiency, it is easy for installation without handling, data processing it is simple.
2, three component fixing structure of sensor of various model various sizes can be fixed by being provided on pedestal, to make this
Caliberating device can demarcate the various sizes of three component fixing structure of sensor of different model.
Description of the drawings
The invention will be described further in the following with reference to the drawings and specific embodiments：
Fig. 1 is the general assembly drawing of this caliberating device of the embodiment of the present invention；
Fig. 2 is the broken away view of this caliberating device of the embodiment of the present invention；
Fig. 3 is the calibration principle figure of this caliberating device of the embodiment of the present invention；
Fig. 4 is three component sensors and pedestal when being demarcated to the three component sensor Z-direction of large scale of a diameter of 100mm
Installation diagram；
Fig. 5 is the three component sensors X direction sign three component sensors of timing of small size and pedestal to a diameter of 50mm
Installation diagram；
Wherein：1- support bases, 2- shafts, 3- crossbeams, 4- hang iron, the mono- component sensors of 5-, tri- component sensors of 6-, 7-
Rope, 8- pedestals, 9- laser range finders, 10- level meters, 11- data collecting systems, 12- data processing systems, the mono- component of 13- pass
Sensor mounting base, 14- screws；
The tie point of three component sensors and rope when a- is to Z-direction dynamometry, b- is for fixing the vertical of large scale sensor
Through-hole, c- are used to fix the vertical through-hole of small size sensor, the connection of three component sensors and rope when d- is to X-direction dynamometry
Point, e- are used to fix the horizontal through hole of large scale sensor, and f- is used to fix the horizontal through hole of small size sensor.
Specific implementation mode
Fig. 1~Fig. 3 shows a specific embodiment of the caliberating device of this three component sensor of the present invention, the device
Include mainly support base 1, crossbeam 3, hang iron 4, by single component sensor 5 of accurate calibration, three component to be calibrated sensing
Device 6, rope 7, pedestal 8, laser range finder 9, level meter 10, data collecting system 11 and data processing system 12.Wherein：
The bottom surface of support base 1 is plane, is stablized in rating test and is placed on experiment table top.Crossbeam 3 is along X-axis side
It is arranged to horizontal extension, the middle part of crossbeam 3 is rotatably connected on by shaft 2 on the support base 1, and wherein the axis of shaft 2 is along Y
Axis direction is disposed to extend, so that crossbeam 3 can be rotated around shaft 2 (in other words around Y-axis) in X-Z plane.And institute
Intersect with the length axes of crossbeam 3 central axes for stating shaft 2.It hangs iron 4 to be movably connected on crossbeam 3, hanging iron 4 can be along crossbeam 3
Length direction transverse shifting.System is slidably connected at there are one nested hole particular by the nesting hole on the extension iron 4 in this example
On the crossbeam 3, and the center of gravity for hanging iron 4 is located in the length axes of crossbeam 3.Single component sensor 5 by accurate calibration,
The list component sensor 5 and left and right two opposite side hung iron 4 and be arranged in the shaft 2, wherein single component sensing
Device 5 is fixed on the right part of crossbeam 3, and the dynamometry end of single component sensor 5 especially by single component sensor installation seat 13
It arranges straight down.Three component sensors 6 are the calibration object of the device, are fixed on the pedestal 8, and are located at single point
The underface of force snesor 5.By tightening vertically, (i.e. the length of rope 7 extends along Z-direction at three component sensor, the 6 dynamometry end
Setting, but it should be noted that this is when crossbeam 3 be in fully horizontal state, rope 7 is just understood substantially vertical) the rope 7
It is connected with the dynamometry end of single component sensor 5.Pedestal 8 and the position of the support base 1 are relatively fixed, which includes
Horizontally disposed bottom plate 81 and the riser 802 for being vertically fixed on 801 top of bottom plate, and the riser 802 of 801 top of bottom plate is
Stainless steel.Three component sensors being provided on pedestal 8 for fixing three component sensor of various model various sizes are solid
Determine structure, three above-mentioned component sensors 6 are exactly to be removably attached on pedestal 8 by the three component fixing structure of sensor
's.
In this example, the specific constructive form of the three component fixing structure of sensor is：It includes being formed on the bottom plate 801
On for wear screw 14 8 vertical through-holes and be formed on the riser 802 for wear screw 8 levels lead to
Hole, and the aperture of vertical through-hole and horizontal through hole is 5mm.In described 8 vertical through-holes, wherein 4 vertical through-holes
It is arranged in the periphery of other 4 vertical through-holes, and 4 rectangular point of vertical through-holes of 4 vertical through-holes of inside and periphery
Cloth.In 8 horizontal through hole, wherein 4 horizontal through hole are arranged in the periphery of other 4 horizontal through hole, and the 4 of inside
The rectangular distribution of 4 horizontal through hole of a horizontal through hole and periphery.Such as：When the device is passed for demarcating three component of large scale
It is when the three component sensor of the such as a diameter of 100mm of sensor, then vertical logical using 4 of 4 horizontal through hole of periphery or periphery
Hole attachment screw fixes three component sensors, prevents the three component sensor from being loosened in either direction.When the device is for demarcating
When the three component sensor of the such as a diameter of 50mm of three component sensor of small size, then 4 horizontal through hole or interior of inside are utilized
The vertical through-hole attachment screw of 4 of side fixes three component sensors, prevents the three component sensor from being loosened in either direction.If right
Three component sensor Z-directions are demarcated, then make the Z-direction dynamometry end of three component sensors vertical upwardly disposed and with the rope
7 connections；If being demarcated to three component sensor Y-directions, keep the Y-direction dynamometry end of three component sensors upwardly disposed vertically
And it is connect with the rope 7.If being demarcated to three component sensors X directions, keep the X-direction dynamometry end of three component sensors perpendicular
It is straight upwardly disposed and connect with the rope 7.
Fig. 4 is three component sensors and pedestal 8 when being demarcated to the three component sensor Z-direction of large scale of a diameter of 100mm
Installation diagram, in the figure, the Z-direction dynamometry end of three component sensors is upwardly disposed vertically, utilize periphery 4 vertical through-holes
Attachment screw fixes the bottom of the three component sensor.It is the connection of three component sensors and rope when to Z-direction dynamometry at a in figure
Point at b is the vertical through-hole for fixing large scale sensor in figure, and erecting for small size sensor is for being fixed by the places c in figure
Clear opening.
Fig. 5 is the three component sensors X direction sign timing of small size to a diameter of 50mm, three component sensors and pedestal 8
Installation diagram, in the figure, the X-direction dynamometry end of three component sensors is upwardly disposed vertically, utilizes 4 horizontal through hole of inside
Attachment screw fixes the side of the three component sensor.It is the connection of three component sensors and rope when to X-direction dynamometry at d in figure
Point at e is the horizontal through hole for fixing large scale sensor in figure, and the places f are the water for fixing small size sensor in figure
Flat through-hole.
Laser range finder 9 is mounted on is used to measure the weight for hanging iron 4 on the crossbeam 3 and at the shaft 2
Distance value x between the heart and the central axes of the shaft 2, and distance value between the extension iron center of gravity that can be measured and shaft central axes
X is exported outward.Obviously, the rotary centerline of the central axes of shaft 2 namely the crossbeam 3.In this example, the laser range finder 9 tool
Body is arranged in the middle part lateral location of crossbeam 3.
Level meter 10 is by clip and is bolted on the crossbeam 3, and level meter 10 can laterally be moved along crossbeam 3
It is dynamic, to be modified to the levelness of crossbeam 3 using lever principle.The level meter 10 can measure the crossbeam 3 and level simultaneously
Angle theta between line, and the angle theta between the crossbeam 3 that can be measured and horizontal line exports outward.In this example, the level meter 10 tool
Body is arranged in the middle top surface position of crossbeam 3.
Data collecting system 11 was not only connect with single component sensor 5, but also was all connected with the three component sensor 6,
It can obtain institute's dynamometry value of the institute dynamometry value F ' and the three component sensor 6 of single component sensor 5, and by single point
Institute's dynamometry value of force snesor 5 is converted into corresponding mechanics electric signal numerical value U ' and exports outward, by being surveyed for three component sensors 6
Force value is converted into corresponding mechanics electric signal numerical value U and exports outward.
Data processing system 12 is SCM system, with the data collecting system 11, laser range finder 9 and level meter
10 are all connected with, which receives the mechanics electric signal numerical value U ' and the institute of the output of the data collecting system 11
State distance value x of the extension iron center of gravity measured by mechanics electric signal numerical value U, the laser range finder 9 to shaft central axes, the water
Angle theta between crossbeam 3 measured by level 10 and horizontal line (namely X-axis line), and can be according to received mechanics electricity
Signal numerical value U ' calculates the institute dynamometry value F ' of single component sensor 5 (because single component sensor 5 accurately to be marked in advance
Fixed, known to U '-F ' correspondences), at the same can according to the distance value x of received extension iron center of gravity to shaft central axes,
Angle theta between crossbeam 3 and horizontal line, the dead weight G for pre-entering the extension iron 4 in the data processing system 12 calculate described three points
The vertical direction theory stress value F of force snesor 6.
The vertical direction theory stress value F of the three component sensor 6 namely the vertical direction of three component force acting on transducer
Component and we need the power demarcated.
According to geometric mechanics calculus of relation, calculation process is mechanics field routine techniques, therefore details are not described herein, it is known that three
Component sensor 6 vertical direction theory stress value F=[(1.49+2.02*sin θ -0.19*cos θ)/(2.626*cos θ+
4.3635*sinθ)]*G*x*10-3.The stress F ' of single component sensor 5=[(1.49*cos θ+2.02*sin θ -0.19)/
(2.626*cosθ+4.3635*sinθ)]*G*x*10-3。
As θ=0, F=F '=G*x/2020 and is actually consistent, and illustrates the correctness of the derivation of equation.
And in this example, there is the data processing system 12 display unit, the display unit can show the mechanics
Electric signal numerical value U ', institute dynamometry value F ', the mechanics electric signal numerical value U of single component sensor 5 and three component pass
The vertical direction theory stress value F of sensor 6.
The crossbeam 3 includes by the left-half of 2 central axes of the shaft to crossbeam left side and by the shaft 2
Axis is to the right half part of crossbeam right side, and the equal length of the left-half and right half part.Described left half
Three graticule 3a being evenly spaced on along 3 length direction of crossbeam are provided on part, this three graticule 3a are by left the half of crossbeam 3
Part is divided into the consistent extension iron moving section of four segment length.
So, hang iron 4 during transverse shifting, be successively from 3 left side of crossbeam to crossbeam center one grade of range,
Two grades of ranges, third gear range and fourth gear range.With the maximum three component sensor of one grade of measuring range, most with fourth gear measuring range
Three small component sensors.Specifically in the present embodiment, the material for hanging iron 4 is 4130 steel of AISI, density 7.85*
103kg/m3, volume 1.3346463*107mm3, G=(1.336463*10-2) * (7.85*103) * 9.8N=therefore it is conducted oneself with dignity
1026.746N.In this way, we according to the tension that lever principle " G*x=T*OF ", wherein T are rope 7, O is in the rotation of crossbeam
The heart, OF are the arm of force of T, can be calculated：
Fourth gear calibration power range be：0~256.6865N；
Third gear calibration power range be：256.6865~513.373N；
Two grades calibration power ranges be：513.373~770.0595N；
One grade calibration power range be：770.0595~1026.746N.
By calculation, calculation process is mechanics field routine techniques, therefore details are not described herein, it is known that the arm of force of T
It refers again to shown in Fig. 1~Fig. 3, the side of three component sensors is now demarcated using this caliberating device of the present embodiment
Method is simply described below, and this approach includes the following steps：
Step 1: the mobile position for hanging iron 4 on the crossbeam 3, until the registration of the laser range finder 9 is
Zero.The general middle part that the extension iron 4 is first moved to crossbeam 2, then fine tuning hang the position of iron 4 until swashing for operating easily,
The registration of optar 9 is zero.
Step 2: by adjusting lateral position of the level meter 10 on the crossbeam 3, the crossbeam is adjusted to water
It puts down, i.e. angle theta=0 between crossbeam 3 and horizontal line (namely X-axis line).
Step 3: with rope 7 by the dynamometry end at the dynamometry end of three component sensor 6 to be calibrated and single component sensor 5
Connection, and the rope 7 is made to tighten.The length of rope 7 is extended vertically along Z axis.
Step 4: by finely tuning lateral position of the level meter 10 on the crossbeam 3, the crossbeam is adjusted again
To level.
Step 5: iron 4 is hung described in transverse shifting to a certain position of crossbeam 3, after the registration of the level meter 10 is stablized,
Read institute's dynamometry of the mechanics electric signal numerical value U ' shown in the data processing system 12, single component sensor 5
The vertical direction theory stress value F of value F ', the mechanics electric signal numerical value U and the three component sensor 6.
Step 6: the institute dynamometry value F ' of single component sensor 5 described in comparison step five and the three component sensor 6
Vertical direction theory stress value F.If the institute dynamometry value F ' of the list component sensor 5 and erecting for the three component sensor 6
Histogram is differed to theoretical stress value F within 1%, then by the vertical direction theory stress value F of the three component sensor 6 and institute
It states mechanics electric signal numerical value U to be demarcated, i.e., according to the vertical direction theory stress value F of three component sensors 6 and corresponding institute
Mechanics electric signal numerical value U is stated, corresponding calibration point is drawn on U-F images.If institute's dynamometry value of the list component sensor 5
The vertical direction theory stress value F of F ' and the three component sensor 6 differs by more than 1%, then repeatedly step 5 and step 6 (change
Become the position for hanging iron 4 on crossbeam 3).
Step 7: the step 5 and step 6 is repeated several times, to obtain multiple calibration points, each calibration point is corresponding
The vertical direction theory stress value F of one group of mechanics electric signal numerical value U and three component sensors, by the smooth lines of these calibration points
It is connected in turn, just obtains the vertical direction theory stress value of the mechanics electric signal numerical value U and the three component sensor 6
The calibration curve of F.
Certainly, the above embodiments merely illustrate the technical concept and features of the present invention, and its object is to make people much of that
Solution present disclosure is simultaneously implemented according to this, and it is not intended to limit the scope of the present invention.It is all according to major technique of the present invention
The equivalent transformation or modification that the Spirit Essence of scheme is done, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of caliberating device of three component sensor, it is characterised in that the device includes：
Support base (1)；
Along the crossbeam (3) of X-direction horizontal extension arrangement, the middle part of the crossbeam (3) along Y direction by being disposed to extend shaft
(2) it is rotatably connected on the support base (1)；
It is connected on the crossbeam (3) and can be along the extension iron (4) of the length direction transverse shifting of the crossbeam；
It is fixedly mounted on the crossbeam (3) and by single component sensor (5) of accurate calibration, the extension iron (4) and the list
Component sensor (5) is arranged in left and right two opposite side of the shaft (2)；
With the relatively-stationary pedestal in position (8) of the support base (1), it is provided with for fixing various models on the pedestal (8)
Three component fixing structure of sensor of three component sensors；
The three component sensors (6) to be calibrated being arranged in below single component sensor (5), the three component sensor (6)
It is removably attached on the pedestal (8) by the three component fixing structure of sensor, and its dynamometry end by stretching tight vertically
Tight rope (7) is connected with the dynamometry end of single component sensor (5)；
The laser range finder (9) of distance value x between center of gravity and the central axes of the shaft (2) for measuring the extension iron (4),
The laser range finder (9) is mounted on the crossbeam (3) and at the shaft (2)；
It can be connected to transverse shifting on the crossbeam (3) and the angle theta of the crossbeam (3) between horizontal line can be measured
Level meter (10)；
The data collecting system (11) being all connected with single component sensor (5) and three component sensors (6), data acquisition
System (11) obtains institute's dynamometry value of the institute dynamometry value F ' and the three component sensor (6) of single component sensor (5), and
Institute's dynamometry value of single component sensor (5) is converted into corresponding mechanics electric signal numerical value U ' to export outward, three component are sensed
Institute's dynamometry value of device (6) is converted into corresponding mechanics electric signal numerical value U and exports outward；And
The data processing system (12) being all connected with the data collecting system (11), laser range finder (9) and level meter (10),
The data processing system (12) receives the mechanics electric signal numerical value U ' of data collecting system (11) output and the power
Learn distance value x of extension iron (4) center of gravity measured by electric signal numerical value U, the laser range finder (9) to shaft (2) central axes, institute
Angle theta of the crossbeam (3) between horizontal line measured by level meter (10) is stated, and data processing system (12) can connect according to it
The mechanics electric signal numerical value U ' received calculates the institute dynamometry value F ' of single component sensor (5), while can be connect according to it
Extension iron (4) center of gravity received to shaft (2) central axes angle theta between horizontal line of distance value x, crossbeam (3), pre-enter this
The dead weight G of extension iron (4) in data processing system (12) calculates the vertical direction theory stress of the three component sensor (6)
Value F.
2. the caliberating device of three component sensor according to claim 1, it is characterised in that：The data processing system
(12) with institute dynamometry value F ', the mechanics that can show the mechanics electric signal numerical value U ', single component sensor (5)
The display unit of electric signal numerical value U and the vertical direction theory stress value F of the three component sensor (6).
3. the caliberating device of three component sensor according to claim 1, it is characterised in that：The pedestal (8) includes water
The bottom plate (80 1) and the riser (802) being vertically fixed on above the bottom plate (801), the three component sensor that plain cloth is set are fixed
Structure includes the 8 vertical through-holes for wearing screw being formed on the bottom plate (801), is formed on the riser (802)
8 horizontal through hole for wearing screw.
4. the caliberating device of three component sensor according to claim 3, it is characterised in that：The vertical through-hole and level
The aperture of through-hole is 5mm.
5. the caliberating device of three component sensor according to claim 3, it is characterised in that：It is vertical logical at described 8
Kong Zhong, wherein 4 vertical through-holes are arranged in the periphery of other 4 vertical through-holes, and 4 vertical through-holes of inside and peripheral 4
A rectangular distribution of vertical through-hole；In 8 horizontal through hole, wherein 4 horizontal through hole are arranged in other 4 levels
The periphery of through-hole, and the rectangular distribution of 4 horizontal through hole of 4 horizontal through hole of inside and periphery.
6. the caliberating device of three component sensor according to claim 1, it is characterised in that：The crossbeam (3) include by
The left-half of shaft (2) central axes to crossbeam left side and by the shaft (2) central axes to crossbeam right side
Right half part is provided with three graticules (3a) being evenly spaced on along crossbeam (3) length direction in the left-half, this three
The left-half of crossbeam (3) is divided into the consistent extension iron moving section of four segment length by graticule (3a).
7. the caliberating device of three component sensor according to claim 6, it is characterised in that：The left-half and
The equal length of right half part, the list component sensor (5) are arranged in the right part of the crossbeam (3).
8. the caliberating device of three component sensor according to claim 1, it is characterised in that：The data processing system
(12) it is microcontroller.
9. a kind of caliberating device using as described in any claim in claim 1~8 demarcates the side of three component sensors
Method, it is characterised in that this approach includes the following steps：
Step 1: the mobile position for hanging iron (4) on the crossbeam (3), until the registration of the laser range finder (9) is
Zero；
Step 2: by adjusting lateral position of the level meter (10) on the crossbeam (3), the crossbeam is adjusted to water
It is flat；
Step 3: with rope (7) will the dynamometry end of three component sensor (6) to be calibrated with it is described list component sensor (5) dynamometry
End connection, and the rope (7) is made to tighten；
Step 4: by adjusting lateral position of the level meter (10) on the crossbeam (3), the crossbeam is adjusted again
To level；
Step 5: hanging iron (4) described in transverse shifting to a certain position, after the registration of the level meter (10) is stablized, institute is read
State the mechanics electric signal numerical value U ' shown in data processing system (12), institute's dynamometry value of single component sensor (5)
The vertical direction theory stress value F of F ', the mechanics electric signal numerical value U and the three component sensor (6)；
Step 6: the institute dynamometry value F ' of single component sensor (5) described in comparison step five and the three component sensor (6)
Vertical direction theory stress value F, if the institute dynamometry value F ' of the list component sensor (5) and the three component sensor (6)
Vertical direction theory stress value F differ within 1%, then by the vertical direction theory stress of the three component sensor (6)
Value F is demarcated with the mechanics electric signal numerical value U；If the institute dynamometry value F ' and described three of the list component sensor (5)
The vertical direction theory stress value F of component sensor (6) differs by more than 1%, then repeating said steps five and step 6；
Step 7: repeating said steps five and step 6, obtain the mechanics electric signal numerical value U and the three component sensor
(6) calibration curve of vertical direction theory stress value F.
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