CN110186367A - One kind being applied to lateral coil of strip displacement on-line measuring device and method - Google Patents
One kind being applied to lateral coil of strip displacement on-line measuring device and method Download PDFInfo
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- CN110186367A CN110186367A CN201910526409.XA CN201910526409A CN110186367A CN 110186367 A CN110186367 A CN 110186367A CN 201910526409 A CN201910526409 A CN 201910526409A CN 110186367 A CN110186367 A CN 110186367A
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- coil
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- circuit
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B13/00—Measuring arrangements characterised by the use of fluids
- G01B13/02—Measuring arrangements characterised by the use of fluids for measuring length, width or thickness
- G01B13/03—Measuring arrangements characterised by the use of fluids for measuring length, width or thickness by measuring coordinates of points
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B13/00—Measuring arrangements characterised by the use of fluids
- G01B13/18—Measuring arrangements characterised by the use of fluids for measuring angles or tapers; for testing the alignment of axes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B13/00—Measuring arrangements characterised by the use of fluids
- G01B13/24—Measuring arrangements characterised by the use of fluids for measuring the deformation in a solid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/004—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring coordinates of points
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
- G01B7/18—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in resistance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
Abstract
The invention discloses one kind to be applied to lateral coil of strip displacement on-line measuring device and method, device includes strain measurement device and fixed device, the strain measurement device includes the bridge circuit and main control module of foil gauge composition, and the fixed device is to the fixation to foil gauge detection device；The strain bridge circuit acquires pressure signal；The main control module will receive strain bridge and acquire pressure signal, and carry out internal calculation, obtain shift transformation amount, be sent to user.The present invention is by the acquisition pressure signal variation of strain bridge circuit, internal algorithm is carried out by single-chip microcontroller to carry out that shift transformation amount is calculated, realize the real-time monitoring to coil of strip displacement, important leverage is provided to coil of strip storage and Transport Safety, the characteristics such as displacement detection accuracy, importance are suitable for the very big popularization in market.
Description
Technical field
The present invention relates to one kind to be applied to lateral coil of strip displacement on-line measuring device and method, belongs to displacement detecting technology neck
Domain.
Background technique
With the continuous development of our society, coil of strip is widely used in social every field, but since volume is larger, Yi Fa
Raw displacement, storage, transportation safety problem annoying always us, detect to coil of strip displacement having become and are badly in need of solving at present
The problem of.
The method of existing monitoring coil of strip displacement is first is that artificial not timing site inspection and simple monitoring device, work as generation
Alarm is issued when offset, these current detection methods cannot all accomplish to monitor in real time, and order of accuarcy is low, results in danger coefficient
Increase；And existing technical monitoring degree of intelligence is not high, it is necessary to which personnel reach scene and could detect, and lead to inefficiency.
The result of such personal monitoring monitoring first is that inaccuracy, small displacement may visually not identify, save bit by bit into it is more, will necessarily
It hides some dangers for；Second is that cannot accomplish real-time remote monitoring, waste a lot of manpower and material resources, intelligence degree is low, and efficiency is extremely low.
Two important events of method of existing monitoring coil of strip displacement carry out displacement monitoring, laser using laser displacement sensor
Displacement sensor to detectable substance and is back to receiver by laser emitter transmitting laser pulse per second, and processor calculates laser
Time needed for pulse encounters detectable substance and is back to receiver, distance value is calculated with this, which is by thousands of times
The average output that measurement result carries out.This method accuracy is slightly lower, higher cost, and condition of compatibility is more harsh.Therefore both the above
Method cannot be promoted the use of.
Summary of the invention
For deficiency existing for above method, it is applied to lateral coil of strip the invention proposes one kind and is displaced on-line measuring device
And method, it is suitable for the very big popularization in market.
The present invention solves its technical problem and adopts the technical scheme that.
In a first aspect, a kind of transverse direction coil of strip that is applied to provided in an embodiment of the present invention is displaced on-line measuring device and method,
Device includes strain measurement device and fixed device, the strain measurement device include foil gauge composition bridge circuit and
Main control module, the fixed device is to the fixation to foil gauge detection device；The strain bridge circuit acquires pressure signal；Institute
Strain bridge acquisition pressure signal will be received by stating main control module, and carry out internal calculation, be obtained shift transformation amount, be sent to user.
It is described to utilize three groups of strain bridge circuits as a kind of possible implementation of the present embodiment, measure three test points
Pressure alteration situation, single-chip microcontroller is transferred to by filter circuit, single-chip microcontroller is calculated by internal algorithm, obtains displacement bias
Amount.
It is described to fix the fixed device of three groups of foil gauge monitoring devices, institute as a kind of possible implementation of the present embodiment
Stating fixed device includes that the fixed device of single group strain measurement device and three groups of foil gauges combine fixed device, and the single group is fixed
Device is fixed plastic tube by upper and lower double card slot, and the mercury of plastic film packaging is contained in plastic tube, and mercury column pressure is being answered
Become on piece, it is chassis that three groups of foil gauges, which combine fixed device by cylindrical shell, and the inside places control device box and holds control
The equipment such as device, a piece plastic tube of the every 120 degree of placements in chassis, are respectively intended to hold three groups of strain measurement devices, mould at each
A scalable plastic tube is placed in expects pipe, has spanner to control cam, and cam realizes top plastics tube top to coil of strip inner wall solid
It is fixed.
As a kind of possible implementation of the present embodiment, the main control module include kernel control chip MSP430 and
The GPRS circuit being attached thereto respectively, signal conditioning circuit, power circuit, the GPRS circuit can send information to user's steel
Roll up misalignment.
Second aspect, it is provided in an embodiment of the present invention a kind of applied to lateral coil of strip displacement online test method, including with
Lower step.
Coil of strip, which is subjected to displacement, causes pressure change on foil gauge, acquires pressure signal by strain bridge circuit；
Pressure signal have passed through RC filter circuit, and filtering low signal is transferred to AD inside MSP430；
The voltage signal of acquisition is carried out internal algorithm calculating by internal AD, obtains coil of strip shift offset；
After calculating shift offset, user's coil of strip misalignment is sent to by GPRS module.
As a kind of possible implementation of the present embodiment, the displacement calculating process includes the following steps.
Step 1: establish two coordinate systems: one is mass motion environment coordinate system i.e. position fixing system OXYZ；Another with
Center of circle O is origin, establishes moving coordinate system oxyz corresponding with movement coil of strip, wherein three foil gauge device for pressure measurement S1,
S2, S3 press equidistant interval placement in the plane；
Step 2: the rotation of coil of strip is described with Eulerian angles, it is assumed that coil of strip first rotates the angle α around x-axis, rotates β further around current y-axis
Angle obtains rotation composite result by direction cosines multiplication；
Step 3: the angular speed for setting the unit vector of two reference axis in coordinate system OXYZ as i, j, then when coil of strip moves are as follows:
Step 4: it setsIt is i-th of mercury tube around the rotary inertia of moving coordinate system oxyz, ifFor steel
The rotary inertia of moving coordinate system oxyz is wound, it is fixed value that the two, which is required to the parameter value solicited for subscriptions according to device concrete condition,
The then unitary rotation inertia of coil of strip kinematic system；
Step 5: the angular acceleration of sphere is setComponent in moving coordinate system oxyz reference axis is、, it may be assumed that
Step 6: set the pressure that gravity that single mercury tube generates generates foil gauge in coil of strip rotation process as, then simultaneous is Step 4: five obtain
Step 7: nearest contact point of the sphere in the plane of position fixing system OXYZ is set as G (x, y), contact is steel in a flash
The equilibrium state of volume, i.e. speedIfComponent on the face XOY isWith, then:
Step 8: simultaneous is Step 6: seven formula can then obtain the angular pose of position of steel coil and mercury tube；
Step 9: according to the position data at record sphere each moment in sampling time of setting, matched curve obtains motion profile；
What the technical solution of the embodiment of the present invention can have has the beneficial effect that.
It is applied to lateral coil of strip the invention discloses one kind and is displaced on-line measuring device, device includes strain measurement device
With fixed device, the strain measurement device includes the bridge circuit and main control module of foil gauge composition, the fixed device
To the fixation to foil gauge detection device；The strain bridge circuit acquires pressure signal, is passed by bridge circuit, filter circuit
It is defeated by main control module, the bridge circuit being made of foil gauge improves sensitivity, reduces error；The main control module
There is SD16 module inside MSP430 single-chip microcontroller, can directly carry out analog-to-digital conversion, eliminate external AD conversion chip, reduce into
This；The master control mould will receive strain bridge and acquire pressure signal, and carry out internal calculation, obtain shift transformation amount, be sent to use
Family.Present invention employs the modes that low-power consumption mode and operating mode both of which switch over, to reach the minimum of device
Power consumption is preferably minimized cost, low-power consumption and the specific switching mode of operating mode: when the voltage difference of foil gauge deformation bad student does not have
When converting, regard as there is no displacement, control device enters low-power consumption mode, when voltage difference changes, passes through
The mode of external interrupt wakes up single-chip microcontroller and enters operating mode, to realize low-power consumption mode, the present invention is stored and transported to coil of strip
Defeated safety provides important leverage, and the characteristics such as displacement detection accuracy, importance are suitable for the very big popularization in market.
One kind of the technical solution of the embodiment of the present invention is applied to lateral coil of strip and is displaced online test method, including following step
Rapid: coil of strip, which is subjected to displacement, causes pressure change on foil gauge, acquires pressure signal by strain bridge circuit；Pressure signal have passed through
RC filter circuit, filtering low signal are transferred to AD inside MSP430；The voltage signal of acquisition is carried out internal algorithm by internal AD
It calculates, obtains coil of strip shift offset；After calculating shift offset, user's coil of strip is sent to by GPRS module and is displaced feelings
Condition, the present invention utilize the variation of strain bridge circuit measuring mercury absolute pressure, and are transferred to single-chip microcontroller by filter circuit, pass through
Internal algorithm obtains change in displacement situation, and information is finally issued user, realizes the detection being displaced to coil of strip；Its integrated artistic
Design is suitble to the various devices such as large, medium and small；Its accuracy, the characteristic of importance are suitable for the very big popularization in market；Its Optimization of Energy Saving
Advantage plays an important role to save the cost.
Detailed description of the invention
Fig. 1 is a kind of signal applied to lateral coil of strip displacement on-line measuring device shown according to an exemplary embodiment
Figure.
Fig. 2 is strain measurement schematic device shown according to an exemplary embodiment.
Fig. 3 is that foil gauge shown according to an exemplary embodiment places top view.
Fig. 4 is that foil gauge shown according to an exemplary embodiment places main view.
Fig. 5 is fixture structure figure shown according to an exemplary embodiment.
Fig. 6 is a kind of functional block diagram of main control module shown according to an exemplary embodiment.
Fig. 7 is a kind of power module electronic circuit schematic diagram shown according to an exemplary embodiment.
Fig. 8 is a kind of signal acquisition shown according to an exemplary embodiment and MCU electronic circuit schematic diagram.
Fig. 9 is a kind of GPRS module electronic circuit schematic diagram shown according to an exemplary embodiment.
Figure 10 is a kind of lateral coil of strip displacement monitor cost budgeting figure.
Specific embodiment
The present invention will be further described with embodiment with reference to the accompanying drawing.
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this hair
Bright to be described in detail, following disclosure provides many different embodiments or example is used to realize different knots of the invention
Structure is hereinafter described the component of specific examples and setting to simplify disclosure of the invention, in addition, the present invention can be with
Repeat reference numerals and/or letter in different examples, this repetition are that for purposes of simplicity and clarity, itself is not indicated
Relationship between various embodiments and/or setting is discussed, it should be noted that illustrated component is not necessarily to scale in the accompanying drawings
It draws, present invention omits the descriptions to known assemblies and treatment technology and process to avoid the present invention is unnecessarily limiting.
Fig. 1 is a kind of signal applied to lateral coil of strip displacement on-line measuring device shown according to an exemplary embodiment
Figure, as described in Figure 1, provided in an embodiment of the present invention a kind of applied to transverse direction coil of strip displacement on-line measuring device, 1 is steel to be measured
Volume, 2 be the plastic tube for supporting to coil of strip, and 3 be strain measurement device, including the fixed device of foil gauge, mercury, strain bridge electricity
Road, 4 be the fixation device of strain measurement device, including main control module holder, fixture structure, the foil gauge monitoring
Device 3 carries out signal acquisition to occur as the pressure change that displacement generates to coil of strip；The fixation of the foil gauge monitoring device
Device 4 fixes three strain measurement devices, and stores main control module；The main control module 5 converts the voltage signal of acquisition
User is sent at offset；6,7,8 be three pressure detecting points, and the pressure signal of acquisition is transferred to main control unit.
As described in Figure 2, card slot 301, plastic tube 302, film are disposed in foil gauge monitoring device 3 from top to bottom
Plastics packed mercury 303, foil gauge 304, lower bayonet slot 305,306 strain gauge device boxes.Upper lower bayonet slot plays fixed function, will
Mercury and foil gauge are fixed；Mercury is prevented from directly contacting with foil gauge by plastic film packaging, and is contained in plastic tube
Interior, mercury gravity is 1N；Mercury can follow the displacement of coil of strip to generate inclination, and the pressure being pressed on foil gauge can also become
Change, and then generate voltage difference, voltage difference is transferred to single-chip microcontroller.
As shown in Figure 3, Figure 4,4 foil gauges are attached on 2 stalloy of designated length, foil gauge is fixed on 1 dress by 5 card slots
It sets in box, while 3 leads on foil gauge are drawn by card slot, links together with external control device, by mercury
The pressure of generation is fully pressed on the steel plate that foil gauge is attached to, and so that steel plate is generated deformation and then is caused foil gauge deformation, forms electricity
Potential difference.
As shown in figure 5, fixed device is the fixation device designed according to the coil of strip of internal diameter 760MM, 1 fixed device turns
Axis, push rod before rotating shaft can drive 2 support rods, support rod that 3 rotary bodies, rotary body rotation is driven to drive 4, preceding push rod is forward
Three positions of coil of strip are arrived on movement, top, are realized and are fixed, and 5 support frames can play a supporting role when device unloads, and support rod is sky
Foil gauge monitoring device is placed in core bar, the inside, and 6 fixed bins play fixed function to entire mechanical structure, while fixed bin is arranged
One fixing groove, for placing control device box, control device box is used to put single-chip microcontroller, power supply, the modules such as GPRS, 7 rod sets,
Between preceding push rod and support frame, push rod is moved forward before assisting, 8 coil of strips to be measured.
As shown in fig. 6, coil of strip displacement detector functional-block diagram, three groups of foil gauges are placed on designated position, when coil of strip produces
When raw displacement, the pressure on foil gauge be will change, and deformation occurs for foil gauge, and resistance changes, and then generate one
Faint voltage difference, voltage difference are amplified by signal conditioning circuit, are then transferred to AD inside single-chip microcontroller and are converted, most
Corresponding shift offset is obtained by single-chip microcontroller internal calculation afterwards, user's real-time position information is transferred to by GPRS module.
As shown in fig. 7, power circuit is powered by 3.7V and 12V battery, 3.7V power supply is converted by LM1117 chip
3.3V power supply is powered to single-chip microcontroller, and 12V power supply is converted into 5V power supply by 7805 chips and powers to GPRS chip, DS2781 chip
To acquire battery capacity chip, the electric quantity signal of acquisition is issued into single-chip microcontroller, single-chip microcontroller is issued when being lower than the 50% of total electricity and mentions
Signal of waking up reminds user to prepare switching battery when being lower than total electricity 10%.
As shown in figure 8, the device shares three groups of signal conditioning circuits, principle be it is duplicate, herein just wherein one
Group signal conditioning circuit explanation, principle are exactly to install foil gauge R6 in designated position, form electricity with R4, R5, R7 fixed resistance
Bridge causes the change in resistance of resistance strain gage when coil of strip is subjected to displacement, and electric bridge disequilibrium generates between U1+ and U1-
Potential difference, the potential difference remove low frequency signal by RC filter circuit, which is adopted by SD16 inside single-chip microcontroller
Shift offset is calculated by internal algorithm in sample, and internal blas amount calculation method is as follows:
Step 1: establish two coordinate systems: one is mass motion environment coordinate system i.e. position fixing system OXYZ；Another is with the center of circle
O is origin, moving coordinate system oxyz corresponding with movement coil of strip is established, wherein three foil gauge device for pressure measurement S1, S2, S3
It is placed in the plane by equidistant interval；
Step 2: the rotation of coil of strip is described with Eulerian angles, it is assumed that coil of strip first rotates the angle α around x-axis, rotates β further around current y-axis
Angle obtains rotation composite result by direction cosines multiplication；
Step 3: the angular speed for setting the unit vector of two reference axis in coordinate system OXYZ as i, j, then when coil of strip moves are as follows:
Step 4: it setsIt is i-th of mercury tube around the rotary inertia of moving coordinate system oxyz, ifFor steel
The rotary inertia of moving coordinate system oxyz is wound, it is fixed value that the two, which is required to the parameter value solicited for subscriptions according to device concrete condition,
The then unitary rotation inertia of coil of strip kinematic system；
Step 5: the angular acceleration of sphere is setComponent in moving coordinate system oxyz reference axis is、, it may be assumed that
Step 6: set the pressure that gravity that single mercury tube generates generates foil gauge in coil of strip rotation process as, then simultaneous is Step 4: five obtain
Step 7: nearest contact point of the sphere in the plane of position fixing system OXYZ is set as G (x, y), contact is steel in a flash
The equilibrium state of volume, i.e. speedIfComponent on the face XOY isWith, then:
Step 8: simultaneous is Step 6: seven formula can then obtain the angular pose of position of steel coil and mercury tube；
Step 9: according to the position data at record sphere each moment in sampling time of setting, matched curve obtains motion profile；
As shown in figure 9, GPRS module realization is communicated with user.
As shown in Figure 10, a kind of lateral coil of strip displacement monitor cost budgeting figure.
The above is the preferred embodiment of the present invention, for those skilled in the art,
Without departing from the principles of the invention, several improvements and modifications can also be made, these improvements and modifications are also regarded as this
The protection scope of invention.
Claims (8)
1. a kind of be applied to lateral coil of strip displacement on-line measuring device, characterized in that including strain measurement device device and admittedly
Determine device, the strain measurement device includes the bridge circuit and main control module of foil gauge composition, the fixed device to
Fixation to foil gauge detection device；The strain bridge circuit acquires pressure signal；The main control module is adopted strain bridge is received
Collect pressure signal, and carry out internal calculation, obtains shift transformation amount.
2. a kind of transverse direction coil of strip that is applied to according to claim 1 is displaced on-line measuring device, characterized in that utilize three groups
Bridge circuit is strained, the pressure alteration situation of three monitoring points is measured, single-chip microcontroller is transferred to by filter circuit, in single-chip microcontroller passes through
Algorithms calculate, and obtain shift offset.
3. a kind of transverse direction coil of strip that is applied to according to claim 2 is displaced on-line measuring device, characterized in that further include solid
The fixed fixed device of three groups of strain measurement devices, the fixed device include the fixed device of single group strain measurement device and three groups
Foil gauge combines fixed device, and the fixed device of the single group is fixed plastic tube by upper and lower double card slot, and modeling is contained in plastic tube
Expect the mercury of film packaging, mercury column pressure on foil gauge, combine fixed device by cylindrical shell and be by three groups of foil gauges
Chassis, the inside place control device box and hold the equipment such as controller, and a piece plastic tube of the every 120 degree of placements in chassis is respectively intended to contain
Three groups of strain measurement devices are put, a scalable plastic tube is placed on each plastic tube, have spanner to control cam, cam
By top plastics tube top to coil of strip inner wall, realizes and fix.
4. one kind according to claim 1 to 3, which is applied to lateral coil of strip, is displaced on-line measuring device, feature
It is that the main control module includes kernel control chip MSP430 and the GPRS circuit being attached thereto respectively, signal conditioning circuit,
Power circuit, the GPRS circuit can send information to user's coil of strip misalignment.
5. according to claim 4, strain bridge circuit, RC filtering and reference voltage circuit that signal conditioning circuit is made of foil gauge
Composition, the signal of acquisition are transferred to AD inside MSP430, and power circuit is powered by 3.7V and 12V battery, and 3.7V power supply passes through
LM1117 chip is converted into 3.3V power supply and powers to single-chip microcontroller, and 12V power supply is converted into 5V power supply by 7805 chips and gives GPRS core
Piece power supply.
6. one kind, which is applied to lateral coil of strip, is displaced online test method, characterized in that draw the following steps are included: coil of strip is subjected to displacement
Pressure change on foil gauge is played, pressure signal is acquired by strain bridge circuit；Pressure signal have passed through RC filter circuit, filter low
Frequency signal is transferred to AD inside MSP430；The voltage signal of acquisition is carried out internal algorithm calculating by internal AD, show that coil of strip is displaced
Offset；After calculating shift offset, user's coil of strip misalignment is sent to by GPRS module.
7. a kind of transverse direction coil of strip that is applied to according to claim 6 is displaced online test method, characterized in that the displacement
Calculate the following steps are included:
Step 1: establish two coordinate systems: one is mass motion environment coordinate system i.e. position fixing system OXYZ；Another is with the center of circle
O is origin, moving coordinate system oxyz corresponding with movement coil of strip is established, wherein three foil gauge device for pressure measurement S1, S2, S3
It is placed in the plane by equidistant interval；
Step 2: the rotation of coil of strip is described with Eulerian angles, it is assumed that coil of strip first rotates the angle α around x-axis, rotates β further around current y-axis
Angle obtains rotation composite result by direction cosines multiplication；
Step 3: the angular speed for setting the unit vector of two reference axis in coordinate system OXYZ as i, j, then when coil of strip moves are as follows:
Step 4: it setsIt is i-th of mercury tube around the rotary inertia of moving coordinate system oxyz, ifFor steel
The rotary inertia of moving coordinate system oxyz is wound, it is fixed value that the two, which is required to the parameter value solicited for subscriptions according to device concrete condition,
The then unitary rotation inertia of coil of strip kinematic system；
Step 5: the angular acceleration of sphere is setComponent in moving coordinate system oxyz reference axis is、, it may be assumed that
Step 6: set the pressure that gravity that single mercury tube generates generates foil gauge in coil of strip rotation process as, then simultaneous is Step 4: five obtain
Step 7: nearest contact point of the sphere in the plane of position fixing system OXYZ is set as G (x, y), contact is steel in a flash
The equilibrium state of volume, i.e. speedIfComponent on the face XOY isWith, then:
Step 8: simultaneous is Step 6: seven formula can then obtain the angular pose of position of steel coil and mercury tube；
Step 9: according to the position data at record sphere each moment in sampling time of setting, matched curve obtains motion profile.
8. a kind of transverse direction coil of strip that is applied to according to claim 7 is displaced online test method, characterized in that use low function
Consumption mode, the every 5S of setting GPRS are sent once, turn 5V power module by single-chip microcontroller control 12V, when only sending an SMS to user
The power supply is just opened, single-chip microcontroller sends information and disconnects the power supply when not sending.
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| CN201910526409.XA CN110186367A (en) | 2019-06-18 | 2019-06-18 | One kind being applied to lateral coil of strip displacement on-line measuring device and method |
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| CN201910526409.XA CN110186367A (en) | 2019-06-18 | 2019-06-18 | One kind being applied to lateral coil of strip displacement on-line measuring device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251912A (en) * | 2021-04-01 | 2021-08-13 | 中国第一汽车股份有限公司 | Motor rotor lamination strain testing device |
| CN114935302A (en) * | 2022-07-22 | 2022-08-23 | 山东安驰新能源科技有限公司 | Tolerance detection device and method for first shell of differential mechanism of electric vehicle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113251912A (en) * | 2021-04-01 | 2021-08-13 | 中国第一汽车股份有限公司 | Motor rotor lamination strain testing device |
| CN113251912B (en) * | 2021-04-01 | 2023-03-07 | 中国第一汽车股份有限公司 | Motor rotor lamination strain testing device |
| CN114935302A (en) * | 2022-07-22 | 2022-08-23 | 山东安驰新能源科技有限公司 | Tolerance detection device and method for first shell of differential mechanism of electric vehicle |
| CN114935302B (en) * | 2022-07-22 | 2022-09-23 | 山东安驰新能源科技有限公司 | Tolerance detection device and method for first shell of differential mechanism of electric vehicle |
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