CN107664599A - The method and apparatus judged for pitch tension failure - Google Patents
The method and apparatus judged for pitch tension failure Download PDFInfo
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- CN107664599A CN107664599A CN201710530800.8A CN201710530800A CN107664599A CN 107664599 A CN107664599 A CN 107664599A CN 201710530800 A CN201710530800 A CN 201710530800A CN 107664599 A CN107664599 A CN 107664599A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005259 measurement Methods 0.000 claims abstract description 98
- 239000010426 asphalt Substances 0.000 claims abstract description 65
- 230000008569 process Effects 0.000 claims abstract description 10
- 241000773945 Trimusculidae Species 0.000 claims abstract description 4
- 230000003287 optical effect Effects 0.000 claims description 18
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000004044 response Effects 0.000 abstract description 2
- 239000011295 pitch Substances 0.000 description 61
- 238000012360 testing method Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
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- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011338 soft pitch Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/068—Special adaptations of indicating or recording means with optical indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
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Abstract
The invention provides the method and apparatus judged for pitch tension failure.The device includes laser ranging module, connection assist, structural light measurement module, turntable, turntable support, main frame, external button, mobile station, fixed station, tank, record button, controller；External button includes external button shell, external button motor and external button press part；External button motor connects with external button press part, and external button press part connects with record button；Record button connects with external button press part with controller.The present invention realizes the real-time judge that pitch is broken in pitch drawing process, can be applied to and be not limited to various bitumen ductility experimental rigs.The present invention realizes automation pitch fracture and judged, can avoid, because the error that artificial monitoring band is come reduces experimentation cost, improving operating efficiency.The contactless fracture determination methods that the present invention uses improve the accuracy of judgement degree of original pulling force sensor method, improve response speed.
Description
Technical field
This patent belongs to bitumen ductility testing field.
Background technology
Technical term
Bitumen ductility：Bitumen ductility value is called, it is specified that the bitumen samples of form, at the specified temperature with certain speed tension
Length during disconnection is extended, unit is centimetre (cm).
Bitumen ductility instrument：Asphalt ductility test instrument, pitch ductility instrument, soft pitch ductility machine are called, is a kind of be applicable
In measure bitumen ductility, the elasticity for being also applied for testing modified pitch recovers the instrument tested.
Bitumen samples：For carrying out the asphalt sample of bitumen ductility experiment.
Impact signal：Impact signal refers to the signal that action time is of short duration, threshold is larger, is embodied in this patent
In, when the amplitude at a certain moment for referring to, when structural light measurement module measures, in the range information of output occur is more than adjacent
Carve the signal of more than amplitude 20mm (in ± 1s).
Bitumen ductility is an important indicator for evaluating pitch plasticity and pitch cryogenic property.The ductility value of pitch
The performance of asphalt is had a very big impact.Bituminous paving in use, when the ductility of pitch decay to it is a certain
During value, it is impossible to meet the low-temperature deformation ability of road surface needs, disease easily occur under the effect such as load.There are some researches show,
When 15 DEG C of ductilities of pitch drop to about 5cm, road surface is easily ftractureed.
Asphalt ductility test instrument is to recover the instrumentation of deformability for determining bitumen ductility and elasticity, by ductility machine
Controller, die trial and bottom plate composition.Bitumen ductility is according to national standard《Effecting determination of asphalt ductility method》(GB/T4508-2010),
《Highway subgrade road surface on-the-spot test code》Measuring method is measured as defined in (JTGE60-2008).
Bitumen ductility instrument is by stretching device (including mobile station and fixed station), controller (including indicating value system, tank temperature control
Device, speed-controlling device, record button), tank composition；Die trial is made up of 2 arc tips moulds and 2 side forms, is divided into 8 according to purposes
Word die trial and straight line die trial.Its operation principle is：The asphalt material sample of fusing is injected in die trial, through being cooled and shaped, one
Determine after conserving certain time under test temperature, load in the die trial fixed plate (post) of ductility machine, by motor driven mobile station forward
Moved by certain speed, until test specimen is stretched to fracture, record tensile elongation now, wherein draw speed passes through controlled motor
Mode is adjusted, and test temperature is controlled by thermostat, and tensile elongation is shown by pointer scale or digital form is used as pitch
The indicating value of ductility testing machine.Bitumen ductility depends on the performance of pitch in itself, while permanent with test temperature, draw speed, water-bath
The factor such as warm time and water-bath density is relevant.
The implementation of prior art
1) ocular estimate
The method for being used to judge pitch fracture on bitumen ductility instrument at present is mainly ocular estimate.Pass through eye-observation pitch
The process stretched in bitumen ductility instrument, record button is then pressed when observing that pitch is broken, record current drip
Blue or green ductility value.
2) pulling force sensor determination method
When bitumen ductility instrument stretches, pitch stretching force passes to pulling force sensor by die trial, energy after the sensor tension
Value of thrust is exported, is then judged as that pitch is broken when value of thrust is 0.
Present technology has the following disadvantages：
1) judge that the degree of accuracy of fracture is relatively low.Because the measurement accuracy of pulling force sensor limits, at present with pull sensing
The bitumen ductility instrument dynamometry precision of device is only 0.1N, and when pitch is stretched to certain length, the most tiny place's diameter of pitch is about
For 0.5mm, now the stretching force of pitch is much smaller than 0.01N, and erroneous judgement can be produced using pulling force sensor measurement pulling force.When pitch is drawn
Reach certain length but it is unbroken when, the stretching force of pitch is just judged to if 0.08N when then unbroken in pitch stretching process
Break as breaking state.Likewise, if fracture judgement is carried out using the ocular estimate currently more generally used, when being broken due to pitch
Quarter, pitch fracture distance was smaller, and fracture can not be recognized accurately in human eye, can not just judge the generation of fracture in time.The related mark in China
Pointed out in standard, during the selection reaction of 20-39 year adult (stimulation is presented, it is desirable to subject from see or hear stimulation to
This time interval reacted immediately.) it is under outstanding level condition, its value is 0.39 second.Correlation standard, pitch
Draw speed when ductility machine works is generally 50mm/min, then general experimenter will be because the error that manual operation is brought will be remote
More than 0.325mm.
2) existing automatization judgement fracture technique depends on the prepackage of dispatching from the factory of bitumen ductility instrument.Prior art is needed in instrument
Pulling force sensor is installed when device produces and realizes that fracture judges, upgrading can not be carried out to old equipment.
The content of the invention
The present invention realizes the automatization judgement being broken to pitch in pitch drawing process, realizes pitch tension failure and sentences
It is disconnected promptly and accurately to realize the upgrading to old equipment, most of bitumen ductility instrument can be applied to.
Device needed for this patent methods described mainly by laser ranging module, connection assist, structural light measurement module,
The part such as turntable, turntable support, main frame, external button forms, and hardware connection figure is as illustrated
Shown in Fig. 2.
1. the device judged for pitch tension failure, it is characterised in that：The device includes laser ranging module, auxiliary connects
Fitting, structural light measurement module, turntable, turntable support, main frame, external button, mobile station, fixed station, tank, record are pressed
Button, controller；External button includes external button shell, external button motor and external button press part.External button motor
Connected with external button press part, external button press part connects with record button.Record button and external button press part are equal
Connected with controller；
Structural light measurement module includes structured light portions and the structure light receiving part.Main frame and laser ranging module connect
Connect, main frame connects with structural light measurement module, and main frame connects with turntable, main frame and external button connects.
Laser ranging module is installed on a mobile station by connection assist, face fixed station, structural light measurement module peace
On turntable, turntable is connected by turntable support with main frame；Main frame is arranged on fixed station；Turntable can drive
Structural light measurement module rotates,
Main frame uses computer or microcomputer；
Laser ranging module is realized using laser range sensor.
Structured light part, using laser as light source, cylinder microscope group is installed before light source and carries out light beam adjustment, it is real
Existing structure light output；Structure light receiving part, using two-dimensional digital sensor or camera；
Main frame can use computer or microcomputer, and main frame is to realize data storage, rotation controls and button press control
System etc..
Structural light measurement module is mainly made up of the part such as structured light portions and the structure light-receiving, as shown in Figure 3.
Wherein, 3-1 is structured light part, can use the light sources such as semiconductor laser, cylinder is provided with before light source
Microscope group carries out light beam adjustment, realizes structure light output；3-2 is structure light receiving part, can use two-dimensional digital sensor or
Camera；3-3 is structure light；9 bitumen samples to be stretched；8-6 is tank bottom surface.
Laser ranging module can use laser range sensor to realize.
Main frame connects with laser ranging module, and main frame connects with structural light measurement module, and main frame connects with turntable, main frame
With external button connects.
Laser ranging module is installed on a mobile station, face fixed station, can measure laser ranging module and fixed station just
To the distance of laser ranging module side.
Turntable can be rotated with driving structure optical measuring module, (as shown in Figure 1) turntable band when from device side
The direction that dynamic structural light measurement module rotates is clockwise and counterclockwise.
Bitumen ductility instrument at work, it is necessary in tank inject ormal weight water, bitumen samples are placed on fixed station
Among mobile station, mobile station is moved with constant rate of speed, stretches bitumen samples.
The technical scheme flow chart of this patent methods described is as shown in Figure 4.
A is the initial state information schematic diagram in the tank that prescan obtains in Fig. 4, and b is the working condition letter in tank
Cease schematic diagram.This schematic diagram is only the part in structural light measurement module data measured, and reflection is that the pitch being stretched is deposited
Position measurement data situation of change, the slope and line segment type of figure middle conductor can not completely include all possible data
Change curve, only schematic diagram.In figure, t is the time, and d is the range information that structural light measurement module measures.
Impact signal：Impact signal refers to the signal that action time is of short duration, threshold is larger, is embodied in this patent
In, when the amplitude at a certain moment for referring to, when structural light measurement module measures, in the range information of output occur is more than adjacent
Carve the signal of more than amplitude 20mm (in ± 1s).
The overall technological scheme implementation process of measuring method described in this patent is as follows：
(1) as illustrated
(2) Fig. 2, laser ranging module, the mounting structure optical measuring module on fixed station, adjustment knot are installed on a mobile station
Structure optical measuring module so that structural light measurement module initial position face fixed station edge, adjust connection assist so that laser
The light that range finder module is sent can front vertical get to the side of fixed station face laser ranging module.
(3) prescan of this patent described device is started：In the case where not placing bitumen samples, laser ranging module is not
Disconnected measurement the distance between mobile station and fixed station value, and main frame is transferred to, main frame obtains according to laser ranging module measurement
Range data calculates the angular range that turntable needs to rotate automatically, and control turntable driving structure optical measuring module rotates,
All areas between the inswept mobile station of light and fixed station that structural light measurement module is sent.Structural light measurement module
By data transfer to main frame, main frame is according to the range data of laser ranging module and the measurement data of structural light measurement module
Calculated, obtain the initial state information in the tank.So complete a prescan.
(4) after the completion of prescan, mobile station is returned into initial position, the zeros data of controller record.
(5) by external button connects to record button so that controller is able to record down at that time during external button work
Bitumen ductility value.
(6) the structural light measurement module, laser ranging module, turntable of this patent described device are restPosed.
(7) bitumen samples are installed in mobile station and fixed station.
(8) scan function of this patent described device is started.In the case where placed bitumen samples, laser ranging module
Constantly measurement the distance between mobile station and fixed station value, and main frame is transferred to, main frame obtains according to laser ranging module measurement
Range data calculate turntable automatically and need the angular range that rotates, control turntable driving structure optical measuring module turns
It is dynamic so that all areas that the light that structural light measurement module is sent can be between inswept mobile station and fixed station.As shown in figure 1,
On the structure light irradiation screw clamp bottom surface and bitumen samples that structural light measurement module is sent, structure light reflects, by structure light
Receiving portion receives.Structural light measurement module is by data transfer to main frame, and main frame is according to the distance number of laser ranging module
Calculated according to the measurement data with structural light measurement module, obtain the initial state information in the tank.So complete once
Scanning.
(9) when mobile station slowly moves, the constantly measurement of laser ranging module obtains displacement data, and is sent on main frame,
Main frame controls turntable to rotate according to displacement data, and turntable driving structure optical measuring module rotates so that structural light measurement mould
Block can be between inswept fixed station and mobile station all areas, that is, scan all areas that are stretched to pitch.Structure flash ranging
Measure the continuous shuttle-scanning of module, it is ensured that the extended state of accurate measurements to pitch.
(10) such as Fig. 3, the work state information in tank that main frame exports according to structural light measurement module is judged, if
It was found that work state information relative to occurring an impact signal in initial state information, then can be considered as and find pitch fracture,
Trigger external button to press, control controller record bitumen ductility value.
(11) continued to scan on if pitch is unbroken.
Brief description of the drawings
Fig. 1 device hardware connection diagrams
In figure, 1 is laser ranging module, and 2 be connection assist, and 3 be structural light measurement module, and 4 be turntable, and 5 be to turn
Dynamic platform support, 6 be main frame, and external button is collectively formed by 7-1,7-2,7-3, and wherein 7-1 is external button shell, and 7-2 is outer
Button motor is connect, 7-3 is external button press part.8-1 is mobile station, and 8-2 is fixed station, and 8-3 is tank, and 8-4 presses for record
Button, 8-5 are controller.8-1,8-2,8-3,8-4,8-5 are the members of bitumen ductility instrument.
Fig. 2 structural light measurement module diagrams
Fig. 3 technical scheme flow charts
The principle schematic that Fig. 4 fractures judge
The technical scheme flow chart of Fig. 5 instantiations
Embodiment
This patent can be used for the fracture of pitch in monitoring pitch drawing process, and control the drip at controller record fracture moment
Blue or green ductility, its flow chart such as Fig. 5：
(1) as illustrated
(2) Fig. 2, laser ranging module, the mounting structure optical measuring module on fixed station, adjustment knot are installed on a mobile station
Structure optical measuring module so that structural light measurement module initial position face fixed station edge, adjust connection assist so that laser
The light that range finder module is sent can front vertical get to the side of fixed station face laser ranging module.
(3) prescan of this patent described device is started：In the case where not placing bitumen samples, laser ranging module is not
Disconnected measurement the distance between mobile station and fixed station value, and main frame is transferred to, main frame obtains according to laser ranging module measurement
Range data calculates the angular range that turntable needs to rotate automatically, and control turntable driving structure optical measuring module rotates,
All areas between the inswept mobile station of light and fixed station that structural light measurement module is sent.Structural light measurement module
By data transfer to main frame, main frame is according to the range data of laser ranging module and the measurement data of structural light measurement module
Calculated, obtain the initial state information in the tank.So complete a prescan.
(4) after the completion of prescan, mobile station is returned into initial position, the zeros data of controller record.
(5) external button is installed on record button so that external button press part can be pressed into when moving down
Record button so that controller records bitumen ductility value at that time.By the structural light measurement module of this patent described device, swash
Ligh-ranging module, turntable restPose.
(6) bitumen samples are installed in mobile station and fixed station.
(7) starter scan function.Start the scan function of this patent described device.It placed the feelings of bitumen samples
Under condition, laser ranging module constantly measures the distance between mobile station and fixed station value, and is transferred to main frame, and main frame is according to laser
The range data that range finder module measurement obtains calculates the angular range that turntable needs to rotate automatically, and control turntable drives knot
Structure optical measuring module rotates so that all areas that the light that structural light measurement module is sent can be between inswept mobile station and fixed station
Domain.As shown in fig. 6, on structure light irradiation screw clamp bottom surface and bitumen samples that structural light measurement module is sent, structure light reflection
Return, received by structure light receiving part.Structural light measurement module is by data transfer to main frame, and main frame is according to laser ranging
The range data of module and the measurement data of structural light measurement module are calculated, and obtain the initial state information in the tank.
So complete single pass.
(8) when mobile station moves, the constantly measurement of laser ranging module obtains displacement data, and is sent on main frame, main frame
Turntable is controlled to rotate according to displacement data, turntable driving structure optical measuring module rotates so that structural light measurement module energy
Enough all areas between inswept fixed station and mobile station, that is, scan all areas being stretched to pitch.Structural light measurement mould
The continuous shuttle-scanning of block, it is ensured that the extended state of accurate measurements to pitch.
(9) such as Fig. 5, the work state information in tank that main frame exports according to structural light measurement module is judged, if
It was found that work state information, which relative to occurring an impact signal in initial state information, then can be considered as, finds pitch fracture letter
Number, otherwise continue to monitor.
(10) if monitoring, pitch is broken, and the external button motor of host computer control rotates.
(11) external button press part is driven to move down when external button motor rotates, when external button press part is downward
Record button is pressed into after moving a certain distance.
(12) controller records bitumen ductility value at that time.
This patent realizes the real-time judge that pitch is broken in pitch drawing process.
This patent has fabulous applicability, can be applied to and be not limited to various bitumen ductility experimental rigs.
This patent realizes automation pitch fracture and judged, can avoid the error come due to artificial monitoring band.
This patent eliminates the artificial cost for participating in experiment, reduces experimentation cost, improves operating efficiency.
The contactless fracture determination methods that this patent uses improve the accuracy of judgement degree of original pulling force sensor method, carry
High response speed.
This patent can be applied to the upgrading of old equipment, and installation is very convenient, without equipment return-to-factory is changed
Make.
This patent realizes the judgement of pitch tension failure.
The method of effective bitumen ductility instrument pitch tension failure automatic decision is had no at present.Pulling force sensor is due to detection
Pulling force limited precision, its respond lowest pull be 0.1N, according to experimental studies have found that, pitch has been stretched to certain length back pull
Through for 0, but pitch is not broken.
Due to needing to fill water when ductility machine works in tank, therefore the light of structure light propagates caused folding in waters
The result of measurement can be influenceed by penetrating.In order to avoid the influence that refractive band comes, this patent enters to the tank for not installing bitumen samples first
Row prescan, the initial state information inside tank is obtained, then to being mounted with work state information in the tank of bitumen samples
Detected.
It can be obtained in the scanning mode for be mounted with asphalt test, the information amplitude that structural light measurement module obtains is compared
The amplitude for not installing bitumen samples is high.When pitch is broken, work state information can produce an impact signal.The impact
The producing cause of signal is as follows：When pitch is not broken, structural light measurement module, which can scan, acquires a continuous light
Sliding curve, the generation of the curve are because the strip pitch to be formed that is stretched has blocked the propagation of structure light in the sink.When
When pitch is pulled off, a separated gap, the structure light in the strip pitch to be formed of being stretched can be shone by this gap
It is mapped to bottom of gullet so that structural light measurement module, which can scan, acquires a continuous curve, there is one on the curve
Impact signal.Required according to Domestic Correlative Standard, at work, pitch should not be small apart from the distance of bottom of gullet for bitumen ductility instrument
In 250mm, pitch should be not less than 250mm apart from the distance of the water surface, therefore, curve near the Amplitude Ration impact signal of impact signal
The big about 250mm of amplitude.Therefore, as long as the ranging resolving power of structural light measurement module is less than 250mm, reduce
The cost of this patent.
This patent can determine whether out the crack conditions of bitumen samples according to the generation and amplitude size of impact signal.Due to structure
Optical measuring module is monitored pitch state by the way of scanning, once so trickle fracture separation this patent occurs for pitch
Can measures.
According to domestic test specification and existing product gauge size, stretching distance is generally bitumen ductility instrument at work
Pitch is broken during 1000mm, and now turntable driving structure optical measuring module is rotated in slewing area, can in 1 second
It is not less than 5 times with reciprocating rotation, i.e., can completes within every 0.1 second a whole measurement of work.The measurement of structural light measurement module
Frequency can reach more than 50kHz, i.e., can measure 50000 times within each second, so being stretched to the pitch quilt of 1000mm length
The minimum unit of structural light measurement module scans is the ÷ 10=0.2mm of 1000mm ÷ 50000, and is stretched to the drip of 1000mm length
Green grass or young crops is only needed 0.00002s time by the complete minimum unit of structural light measurement module scans.Obviously, optimally, exist
This patent described device can determine pitch fracture after the 0.00002s that pitch is broken.
The measurement model of bitumen ductility instrument ductility value is Δ D=Dt-D0, wherein Δ DiWhat is recorded during to determine fracture prolongs
The error of indication of angle value, DiThe ductility measured value recorded during to determine fracture, D0The ductility standard recorded during to determine fracture
Value.Each influence factor of above-mentioned measurement model is separate, then can obtain synthesis variance and be：And C1=1, C2=-1.Found by testing repeatedly, with reference to China's pertinent literature,
Using human eye be broken the limits of error of judgementFor 0.325mm；U (the D of bitumen ductility instrumentt)=0.1mm.Then
Ocular estimate judges that the combined standard uncertainty of bitumen ductility value when pitch is broken isK=2 is taken, the expanded uncertainty of measurement result is 0.68mm.
The fracture carried out using this patent in pitch drawing process judges that its model is same as above.The maximum allowable mistake of this patent
Poor u (D0) be 0.2mm, then its combined standard uncertainty isTake k=
2, the expanded uncertainty of measurement result of this patent is used as 0.44mm.
This patent is in the measurement of ductility value in for bitumen ductility instrument drawing process, the expanded uncertainty of measurement result
It is the 0.65 of the expanded uncertainty of ocular estimate, it is clear that this patent performance is far superior to the performance of ocular estimate.
This patent can be with original bitumen ductility instrument cooperating.The installation of this patent is not related to original bitumen ductility
The direct transformation of instrument, very easily it can be arranged on bitumen ductility instrument.The external button of this patent design goes for greatly
The external pressing button of part instrument, realize that external device is measured and trigger original device after result and operated accordingly.
Claims (5)
1. the device judged for pitch tension failure, it is characterised in that：The device includes laser ranging module, auxiliary connection
Part, structural light measurement module, turntable, turntable support, main frame, external button, mobile station, fixed station, tank, record are pressed
Button, controller；External button includes external button shell, external button motor and external button press part；External button motor
Connected with external button press part, external button press part connects with record button；Record button and external button press part are equal
Connected with controller；
Structural light measurement module includes structured light portions and the structure light receiving part；Main frame connects with laser ranging module,
Main frame connects with structural light measurement module, and main frame connects with turntable, main frame and external button connects；
Laser ranging module is installed on a mobile station by connection assist, and face fixed station, structural light measurement module is arranged on
On turntable, turntable is connected by turntable support with main frame；Main frame is arranged on fixed station；Turntable being capable of driving structure
Optical measuring module rotates.
2. device according to claim 1, it is characterised in that main frame uses computer or microcomputer.
3. device according to claim 1, it is characterised in that laser ranging module is realized using laser range sensor.
4. device according to claim 1, it is characterised in that structured light part, using laser as light source, light source
Before be provided with cylinder microscope group carry out light beam adjustment, realize structure light output；Structure light receiving part, using two-dimensional digital sensor
Or camera.
5. the method for application device as claimed in claim 1, it is characterised in that implementation process is as follows：
(1) laser ranging module is installed on a mobile station, the mounting structure optical measuring module on fixed station, adjusts structural light measurement
Module so that structural light measurement module initial position face fixed station edge, adjust connection assist so that laser ranging module
The light sent can front vertical get to the side of fixed station face laser ranging module；
(2) prescan is started：In the case where not placing bitumen samples, laser ranging module constantly measures mobile station and fixed station
The distance between value, and be transferred to main frame, the range data that main frame obtains according to laser ranging module measurement calculates automatically to be turned
Dynamic platform needs the angular range rotated, and control turntable driving structure optical measuring module is rotated so that structural light measurement module is sent out
The light gone out can be between inswept mobile station and fixed station all areas；Structural light measurement module by data transfer to master
Machine, main frame are calculated according to the range data of laser ranging module and the measurement data of structural light measurement module, obtain screw clamp
Interior initial state information；So complete a prescan；
(3) after the completion of prescan, mobile station is returned into initial position, the zeros data of controller record；
(4) by external button connects to record button so that controller is able to record down drip at that time during external button work
Blue or green ductility value；
(5) structural light measurement module, laser ranging module, turntable are restPosed；
(6) bitumen samples are placed among fixed station and mobile station, mobile station is moved with constant rate of speed, stretches bitumen samples；
(7) scanning is started；In the case where placed bitumen samples, laser ranging module constantly measure mobile station and fixed station it
Between distance value, and be transferred to main frame, the range data that main frame obtains according to laser ranging module measurement calculates rotation automatically
Platform needs the angular range rotated, and control turntable driving structure optical measuring module is rotated so that structural light measurement module is sent
Light can be between inswept mobile station and fixed station all areas；The structure light irradiation screw clamp that structural light measurement module is sent
On bottom surface and bitumen samples, structure light reflects, and is received by structure light receiving part；Structural light measurement module is by measurement data
Main frame is transferred to, main frame is calculated according to the range data of laser ranging module and the measurement data of structural light measurement module,
Obtain the initial state information in screw clamp；So complete single pass；
(8) when mobile station moves, the constantly measurement of laser ranging module obtains displacement data, and is sent on main frame, main frame according to
Displacement data control turntable is rotated, and turntable driving structure optical measuring module is rotated so that structural light measurement module can be swept
The all areas crossed between fixed station and mobile station, that is, scan all areas being stretched to pitch；Structural light measurement module is not
Disconnected shuttle-scanning, it is ensured that the extended state of accurate measurements to pitch；
(9) work state information in the tank that main frame exports according to structural light measurement module is judged, if finding work shape
State information is then considered as relative to occurring an impact signal in initial state information and finds pitch fracture, trigger external button and press
Under, control controller record bitumen ductility value；Impact signal refers to when structural light measurement module measures, in the range information of output
The amplitude at a certain moment occurred is more than the signal that adjacent moment is more than amplitude 20mm in ± 1s；
(10) continued to scan on if pitch is unbroken.
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| CN109556963A (en) * | 2019-01-24 | 2019-04-02 | 西安市亚星土木仪器有限公司 | Pitch tension failure toughness tester |
| CN112146977A (en) * | 2020-08-05 | 2020-12-29 | 中交基础设施养护集团宁夏工程有限公司 | Performance detector special for asphalt and detection method thereof |
| CN112763137A (en) * | 2020-12-09 | 2021-05-07 | 松诺盟科技有限公司 | Calibration method of pressure sensor |
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| CN107664599B (en) | 2023-10-17 |
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