CN106872008A - A kind of dynamic weighing transverse sensitivity of sensor bearing calibration - Google Patents
A kind of dynamic weighing transverse sensitivity of sensor bearing calibration Download PDFInfo
- Publication number
- CN106872008A CN106872008A CN201510921499.4A CN201510921499A CN106872008A CN 106872008 A CN106872008 A CN 106872008A CN 201510921499 A CN201510921499 A CN 201510921499A CN 106872008 A CN106872008 A CN 106872008A
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- CN
- China
- Prior art keywords
- sensor
- wheel
- dynamic weighing
- bearing calibration
- sensitivity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/01—Testing or calibrating of weighing apparatus
Abstract
The invention discloses a kind of weighing sensor cross sensitivity bearing calibration, wherein, including：Sensor, the data handling system of completion are laid；Installation requirement：Three sensors are laid on road surface into " N " type, and are well coupled with data handling system；Assuming that a two axle automobiles are at the uniform velocity travelled, sail the driving vehicle dynamic weighing sensor of " N " type structure at one end by first piezoelectric transducer 1, sequentially pass through three road sensors and sail out of, time waveform of the present invention according to collection signal, obtain lateral attitude of the vehicle wheel trace on road surface, thus it is easy to calculate wheel and rolls particular location on a sensor, so as to we can learn that wheel rolls the sensitivity of position on sensor according to uniformity curve map, the quantity of electric charge produced i.e. under effective unit pressure, and calculate more accurate car weight, substantially increase the precision of dynamic weighing system.
Description
Technical field
It is particularly a kind of for the correction of high speed dynamic weighing transverse sensitivity of sensor the present invention relates to dynamic weighing field
Method.
Background technology
The load of vehicle has particularly significant influence to the service life of road, will be damaged when overload of vehicle is travelled
Road, so that the huge increasing of HIGHWAY MAINTENANCE expense.Further, since loading capacity has exceeded the specified tonnage of vehicle so that the property of vehicle
Can be affected, first be that the stability of vehicle is affected, secondly in bend and the larger section of longitudinal slope, because overload causes car
Power performance be affected so that seriously threaten vehicle driving safety.Accordingly, it would be desirable to vehicle is set on road claim
Refitting is put, to monitor the load condition of the vehicle of fast running on road.
What weighing-appliance relatively advanced at present was all selected is the good piezoelectric axle load cell of dynamic weighing performance, pressure
The line wiping sensors such as electric quartz transducer.The principle of such sensor is that when by a range of pressure, it is right to produce
The electric charge that should be measured.Thus we only need to collection charge signal and can draw pressure.But such sensor is in manufacturing process
In produce linearity error with being all difficult to avoid that.This error is not only embodied between different sensors, on same sensor
The quantity of electric charge that diverse location is produced under the effect of same pressure is also impossible to completely the same.The uniformity of piezoelectric quartz sensor is missed
Within 3%, the conformity error of piezoelectric axle load cell is within 7% for difference.This just brings unavoidably to dynamic weighing
Error.
The content of the invention
It is an object of the invention to provide a kind of dynamic weighing transverse sensitivity of sensor bearing calibration, so as to overcome because passing
The difference of sensor uniformity and the weighting error that brings.
To achieve the above object, the invention provides a kind of dynamic weighing transverse sensitivity of sensor bearing calibration, wherein,
Including：Sensor, the data handling system of completion are laid.Installation requirement：Three sensors are laid on road surface into " N " type,
And well couple with data handling system.
When wheel presses through sensor, weighing system collects sensor output charge amount, meanwhile, according to collection signal
Time waveform, obtains lateral attitude of the vehicle wheel trace on road surface, thus is easy to calculate wheel and rolls on a sensor
Particular location.The sensitivity uniformity curve map of sensor is when dispatching from the factory, by getting what determination method was measured ready.From
And, we can learn that wheel rolls the sensitivity of position on sensor, i.e. effective unit pressure according to uniformity curve map
The quantity of electric charge of lower generation, and calculate more accurate car weight.
Compared with prior art, the present invention has the advantages that：
The present invention rolls particular location on a sensor by determining wheel, is claimed further according to sensor consistency curve map
Re-computation, it is to avoid the calculation error of weighing brought by sensor consistency error, improves the precision of dynamic weighing system.
Brief description of the drawings
Fig. 1 is the schematic diagram for realizing dynamic weighing transverse sensitivity of sensor bearing calibration.
Description of reference numerals：
1 first road sensor；2 second road sensors；3 the 3rd road sensors；4 data handling systems.
Specific embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the invention is described in detail, it is to be understood that guarantor of the invention
Shield scope is not limited by specific embodiment.
As shown in figure 1, a kind of embodiment according to the specific embodiment of the invention is：A kind of weighing sensor is laterally sensitive
Degree bearing calibration, including the 1, first road sensor, the 2, second road sensor, the 3, the 3rd road sensor, 4, data processing system
System, wherein：
Sensor can discharge the electric charge of respective amount when being rolled by wheel, the quantity of electric charge number, can be by dynamic weighing system
Miscellaneous part is measured.Meanwhile, according to the time waveform of collection signal, lateral attitude of the vehicle wheel trace on road surface is obtained, because
And be easy to calculate wheel and roll particular location on a sensor.Assuming that a two axle automobiles are at the uniform velocity travelled, by first
Piezoelectric transducer 1 sails the driving vehicle dynamic weighing sensor of " N " shape structure at one end, sequentially passes through three road sensors simultaneously
Sail out of.Order：
Vehicle front wheels and rear wheels are successively in t1And t2Moment produces front-wheel piezoelectric detection signal on sensor 1；
Vehicle the near front wheel and off-front wheel are successively in t3And t4Moment produces front-wheel piezoelectric detection signal on sensor 2；
Vehicle left rear wheel and off hind wheel are successively in t3And t4Moment produces front-wheel piezoelectric detection signal on sensor 2；
According to the time waveform of collection signal, lateral attitude of the vehicle wheel trace on road surface is obtained：
--- in formulaRefer to distance of the vehicle revolver away from track left hand edge.
When follow-up dynamic weighing is calculated, the uniformity curve map of physical location and sensor is rolled with reference to wheel, can
More accurately calculate the vehicle weight corresponding to the quantity of electric charge for measuring.
The foregoing description to specific illustrative embodiment of the invention be in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can be much changed
And change.The purpose of selecting and describing the exemplary embodiment is that explaining that certain principles of the invention and its reality should
With so that those skilled in the art can realize and using a variety of exemplaries of the invention and
A variety of selections and change.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (4)
1. a kind of dynamic weighing transverse sensitivity of sensor bearing calibration, it is characterised in that including：The sensing of completion is laid
Device, data handling system.
2. installation requirement：Three sensors are laid on road surface into " N " type, and are well coupled with data handling system.
3. dynamic weighing transverse sensitivity of sensor bearing calibration according to claim 1, it is characterised in that work as pressure wheel
When crossing sensor, weighing system collects sensor output charge amount, meanwhile, according to the time waveform of collection signal, obtain car
Lateral attitude of the wheel trace on road surface, calculates wheel and rolls particular location on a sensor accordingly.
4. dynamic weighing transverse sensitivity of sensor bearing calibration according to claim 1, it is characterised in that we can be with
Learn that wheel rolls the electric charge produced under the sensitivity of position on sensor, i.e. effective unit pressure according to uniformity curve map
Amount, and calculate more accurate car weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510921499.4A CN106872008A (en) | 2015-12-14 | 2015-12-14 | A kind of dynamic weighing transverse sensitivity of sensor bearing calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510921499.4A CN106872008A (en) | 2015-12-14 | 2015-12-14 | A kind of dynamic weighing transverse sensitivity of sensor bearing calibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106872008A true CN106872008A (en) | 2017-06-20 |
Family
ID=59177426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510921499.4A Pending CN106872008A (en) | 2015-12-14 | 2015-12-14 | A kind of dynamic weighing transverse sensitivity of sensor bearing calibration |
Country Status (1)
| Country | Link |
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| CN (1) | CN106872008A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595356A (en) * | 2020-06-06 | 2021-04-02 | 东南大学 | Monitoring system for dynamic weighing, speed measuring and strain testing of expressway/bridge structure based on flexible piezoelectric sensor |
| CN112802339A (en) * | 2020-12-31 | 2021-05-14 | 江苏中路工程技术研究院有限公司 | System and method for measuring transverse distribution of wheel tracks |
| CN113686421A (en) * | 2021-08-31 | 2021-11-23 | 山东新凌志检测技术有限公司 | Vehicle detection device and method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201181218Y (en) * | 2008-03-17 | 2009-01-14 | 华南理工大学 | Linear array pressure-sensitive sensing equipment used for automobile wheel shaft recognition |
-
2015
- 2015-12-14 CN CN201510921499.4A patent/CN106872008A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201181218Y (en) * | 2008-03-17 | 2009-01-14 | 华南理工大学 | Linear array pressure-sensitive sensing equipment used for automobile wheel shaft recognition |
Non-Patent Citations (1)
| Title |
|---|
| 孙秀雅: "基于压电薄膜轴传感器的动态称重系统的研发", 《中国优秀硕士学位论文全文数据库工程科技II辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595356A (en) * | 2020-06-06 | 2021-04-02 | 东南大学 | Monitoring system for dynamic weighing, speed measuring and strain testing of expressway/bridge structure based on flexible piezoelectric sensor |
| CN112802339A (en) * | 2020-12-31 | 2021-05-14 | 江苏中路工程技术研究院有限公司 | System and method for measuring transverse distribution of wheel tracks |
| CN113686421A (en) * | 2021-08-31 | 2021-11-23 | 山东新凌志检测技术有限公司 | Vehicle detection device and method |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170620 |
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| WD01 | Invention patent application deemed withdrawn after publication |