CN208254421U - A kind of device measuring bridge dynamic deflection - Google Patents
A kind of device measuring bridge dynamic deflection Download PDFInfo
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- CN208254421U CN208254421U CN201820925503.3U CN201820925503U CN208254421U CN 208254421 U CN208254421 U CN 208254421U CN 201820925503 U CN201820925503 U CN 201820925503U CN 208254421 U CN208254421 U CN 208254421U
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- target plate
- electronic target
- laser
- bridge
- terminal
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Abstract
The utility model discloses a kind of devices for measuring bridge dynamic deflection, belong to bridge survey technical field, including laser, electronic target plate and terminal, the electronic target plate positions bridge amount of deflection position to be measured at the far end, the laser is fixed on the facility of proximal end and laser is emitted to electronic target plate with fixed angle, the electronic target plate is equipped with facula position and incudes component, and the facula position induction component signal connects terminal.The fixed laser of position and launch angle issues light beam, and on dot projection electronic target plate, the facula position induction component of electronic target plate sets glossing up position automatically and facula position is sent back to terminal；When loading test, bridge generates displacement, and electronic target plate is and then moved, since laser is motionless, hot spot is moved, and electronic target plate calculates the new position of glossing up in real time, terminal is sent back to, terminal crosses comparison, the accurate real-time dynamic deflection for calculating bridge.
Description
Technical field
The utility model relates to bridge survey fields, more particularly to a kind of device for measuring bridge dynamic deflection.
Background technique
The amount of deflection of bridge is the most important index of long-span bridges lifetime, and periodic observation amount of deflection is to ensure bridge structure
The most effective precautionary measures of safety.In the dynamic test of present bridge, the measurement of amount of deflection is generally by setting up bracket riding upon
Displacement meter measure, but most of bridge is limited to the depth of water, span, and the conditions such as navigation can not set up bracket.This bridge
Beam is generally measured with acceleration transducer indirectly, but measuring result error is larger.
Utility model content
To solve the above-mentioned problems, the utility model provides a kind of device for measuring bridge dynamic deflection, measurement error
It is small.
The technical scheme adopted by the utility model is
A kind of device measuring bridge dynamic deflection, including laser, electronic target plate and terminal, the electronics
Target Board positions bridge amount of deflection position to be measured at the far end, and the laser is fixed on the facility of proximal end and laser is to electronics
Target Board is emitted with fixed angle, and the electronic target plate is equipped with facula position and incudes component, the facula position induction part
Part signal connects terminal.
The facula position induction component includes several photoelectric sensors as a further improvement of the utility model,
Each photoelectric sensor is arranged on the side to light of electronic target plate in a manner of quadrate array.
The electronic target plate is connect by spherical hinge structure with bridge as a further improvement of the utility model,.
Shading protecting box, the shading are covered with outside the electronic target plate as a further improvement of the utility model,
Protecting box is equipped with light inlet towards one end of laser.
The shading protecting box is equipped with waterproof construction as a further improvement of the utility model,.
The facula position induction component and terminal pass through wireless communication as a further improvement of the utility model,
Number be connected.
The beneficial effects of the utility model are: the laser that position and launch angle are fixed issues light beam, dot projection electricity
On specific item target, the facula position induction component of electronic target plate sets glossing up position automatically and facula position is sent back to calculating
Machine terminal；When loading test, bridge generates displacement, and electronic target plate is and then moved, since laser is motionless, hot spot
It being moved, electronic target plate calculates the new position of glossing up in real time, sends back to terminal, and terminal crosses comparison,
The accurate real-time dynamic deflection for calculating bridge.
Detailed description of the invention
The present invention will be further described with embodiment with reference to the accompanying drawing.
Fig. 1 is the principles of the present invention figure；
Fig. 2 is the schematic diagram of electronic target plate.
Specific embodiment
The device of measurement bridge dynamic deflection as shown in Figure 1, including laser 1, electronic target plate 2 and terminal
3.Electronic target plate 2 positions bridge at the far end amount of deflection position to be measured, can with the displacement of bridge amount of deflection position to be measured position
It moves.The laser 1 is fixed on the facility of proximal end, which can be bridge pier perhaps wall or external bracket.
During carrying out load experiment, the position of laser 1 is motionless, therefore laser 1 is emitted to electronic target plate 2 with fixed angle
To form the hot spot of laser on electronic target plate 2.Electronic target plate 2 is equipped with facula position and incudes component, to incude
The facula position of laser, the facula position incude component signal and connect terminal 3.
The working principle of so embodiment device is as follows:
The fixed laser 1 of position and launch angle issues light beam, on dot projection to electronic target plate 2, electronic target
The facula position induction component of plate 2 automatically identifies the initial position of hot spot and facula position is sent to terminal 3；Load
When test, bridge generates displacement, and electronic target plate 2 is and then displaced, and since laser 1 is motionless, hot spot is relative to electricity
Specific item target 2 is mobile, and facula position induction component induces the position of new hot spot and the position is sent to terminal
3, terminal 3 excessively compares the position of new, old hot spot, the accurate real-time dynamic deflection for calculating bridge.
The dynamic measurement device of this deflection of bridge span, due to being automatic measurement, the step of manual measurement will not be added, thus
It is high-efficient and more accurate.
It is further preferred that it includes several photoelectric sensors 4, these photoelectric transfers that facula position, which incudes component, with reference to Fig. 2
Sensor 4 is photomicrosensor 4, and each photoelectric sensor 4 is arranged in the side to light of electronic target plate 2 in a manner of quadrate array
On.The quadrate array, refers to from the point of view of direction in length and breadth, and the distance of two neighboring photoelectric sensor 4 is fixed and equal.Light
Electric transducer can detecte the intensity of light, and the place closer from hot spot, intensity of illumination is bigger, its position of photoelectric sensor input
The light intensity of point.It is the position of hot spot by comparing, at largest light intensity.After determining largest light intensity position, information is sent
Return terminal.This simple calculatings light intensity and the mode of signal transmission belong to existing means, and those skilled in the art can be with
It is directly borrowed in the measurement of present apparatus amount of deflection.
It is further preferred that facula position induction component is connected with terminal 3 by wireless signal.
It is further preferred that electronic target plate 2 is connect by spherical hinge structure with bridge, electricity can be rotated when being installed
Specific item target 2 adapts it to the exit direction of laser 1.
It is further preferred that being covered with the shading protecting box not illustrated outside electronic target plate 2, shading protecting box direction swashs
One end of light device 1 is equipped with light inlet.Shading protecting box is only opened in light inlet side, and by the other positions of electronic target plate 2
Closing avoids exterior light from shining and impacts to measurement.
It is further preferred that the shading protecting box is equipped with waterproof construction, for example it is sealing joint strip, or is protected in shading
The material of the setting water suction moisture absorption inside box.
The above is the utility model preferred embodiment, is not constituted to scope of protection of the utility model
Limitation.
Claims (6)
1. a kind of device for measuring bridge dynamic deflection, it is characterised in that: including laser (1), electronic target plate (2) and calculate
Machine terminal (3), the electronic target plate (2) position bridge amount of deflection position to be measured at the far end, and the laser (1) is fixed on closely
On the facility at end and laser (1) is emitted to electronic target plate (2) with fixed angle, and the electronic target plate (2) is equipped with light
Spot location sensitive component, facula position induction component signal connection terminal (3).
2. the device of measurement bridge dynamic deflection according to claim 1, it is characterised in that: the facula position induction part
Part includes several photoelectric sensors (4), and each photoelectric sensor (4) is arranged in electronic target plate (2) in a manner of quadrate array
Side to light on.
3. the device of measurement bridge dynamic deflection according to claim 2, it is characterised in that: the electronic target plate (2)
It is connect by spherical hinge structure with bridge.
4. the device of measurement bridge dynamic deflection according to claim 1 or 2 or 3, it is characterised in that: the electronic target
Shading protecting box is covered with outside plate (2), the shading protecting box is equipped with light inlet towards one end of laser (1).
5. the device of measurement bridge dynamic deflection according to claim 4, it is characterised in that: the shading protecting box is equipped with
Waterproof construction.
6. the device of measurement bridge dynamic deflection according to claim 1 or 2 or 3, it is characterised in that: the facula position
Induction component is connected with terminal (3) by wireless signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820925503.3U CN208254421U (en) | 2018-06-14 | 2018-06-14 | A kind of device measuring bridge dynamic deflection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820925503.3U CN208254421U (en) | 2018-06-14 | 2018-06-14 | A kind of device measuring bridge dynamic deflection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208254421U true CN208254421U (en) | 2018-12-18 |
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ID=64654578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820925503.3U Active CN208254421U (en) | 2018-06-14 | 2018-06-14 | A kind of device measuring bridge dynamic deflection |
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| Country | Link |
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| CN (1) | CN208254421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701968A (en) * | 2021-07-12 | 2021-11-26 | 北京建筑大学 | Bridge dynamic deflection monitoring system |
-
2018
- 2018-06-14 CN CN201820925503.3U patent/CN208254421U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701968A (en) * | 2021-07-12 | 2021-11-26 | 北京建筑大学 | Bridge dynamic deflection monitoring system |
| CN113701968B (en) * | 2021-07-12 | 2023-10-13 | 北京建筑大学 | Bridge dynamic deflection monitoring system |
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