CN2674442Y - Bridge deflection symmetric photoelectric automatic measurer - Google Patents
Bridge deflection symmetric photoelectric automatic measurer Download PDFInfo
- Publication number
- CN2674442Y CN2674442Y CN 200320127308 CN200320127308U CN2674442Y CN 2674442 Y CN2674442 Y CN 2674442Y CN 200320127308 CN200320127308 CN 200320127308 CN 200320127308 U CN200320127308 U CN 200320127308U CN 2674442 Y CN2674442 Y CN 2674442Y
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- China
- Prior art keywords
- communicating pipe
- liquid level
- deflection
- bridge
- photoelectricity
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- Expired - Lifetime
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Abstract
The utility model relates to a symmetric photoelectric automatic measurer for bridge-beam deflection, which is provided with horizontal pipes longitudinally laid along a body of a bridge beam, vertical communicating pipes are alternately connected to the horizontal pipes at proper intervals and are communicated with horizontal pipes, and liquid levels in the vertical communicating pipes mutually communicated are kept on the same horizontal plane. Each vertical communicating pipe is provided with a set of photoelectric liquid level gauge composed of strip-shaped light sources and strip-shaped photoelectric receiving arrays arranged along the pipe-shaft directions of the vertical communicating pipes, a digital processing circuit and a signal communication interface, the data signal of each photoelectric liquid level gauge is connected to an external computer in a bus mode through the same signal line so that a bridge-beam deflection automatic measuring network is formed. The utility model can realize multi-point, real-time, long-term, long-distance, high-precision and automatic monitoring to bridge-beam deflection, and the utility model has low price and simple operation.
Description
Technical field
The utility model belongs to the bridge technology field, is specifically related to a kind of deflection of bridge span symmetrical expression electrooptical automatic measuring device.
Background technology
Deflection monitoring is an important content of bridge status monitoring, and communicating pipe method be one of main method of existing amount of deflection artificial observation, it is to lay water pipe on bridge, at the point that needs are observed be installed one vertical communicating pipe, dress liquid in the pipe, each communicating pipe communicates by water pipe, thereby the liquid level that makes them remains on same surface level, with the liquid level of communicating pipe of bank Ji Chu benchmark as each point measurement, when bridge beam body deforms, the water pipe that is fixed on Liang Tishang moves thereupon, liquid level in each communicating pipe of this moment remains unchanged substantially, but the relative liquid surface of each vertical water pipe has taken place to move, read the relative shift of liquid level in communicating pipe, can obtain the amount of deflection changing value of each measured point.This method measuring accuracy can meet the demands, but owing to adopt artificial reading, high to operating personnel's sense of responsibility requirement, and waste time and energy, can only be applicable to the static deflection observation of short-term of bridge, also be subjected to measurement environment such as weather, Temperature Influence sometimes.And the development of bridge technology, to the monitoring of deflection of bridge span proposed automatically, long-term, dynamic requirement.For the communicating pipe method, this changes the artificial observation of liquid level into automatic monitoring with regard to requiring.
Directly adopting ready-made ultrasonic liquid level gauge to combine with communicating pipe, is one of the method for the above-mentioned automatic monitoring of realization.This method is measured liquid level change in communicating pipe automatically by ultrasonic liquid level gauge, realize deflection of bridge span automatically, the requirement of long-term, dynamic monitoring.But ultrasound wave is different in the velocity of propagation in same medium under the different temperature, and liquid forms steam easily when temperature raises, also can change its velocity of propagation, it is not high to utilize ultrasound wave to carry out the level gauging precision like this, it only is centimetre-sized, do not reach measurement requirement, and relative price is higher.
Summary of the invention
Many shortcomings that the utility model exists at existing deflection of bridge span measurement means, especially the above deficiency that exists at the ultrasonic deflection monitoring device of communicating pipe, a kind of deflection of bridge span linear symmetric formula electrooptical automatic measuring device is provided, realization is to the multiple spot of deflection of bridge span, real-time, long-term, long-range, high precision, monitoring automatically, and reach price low, implement simple requirement.
The utility model is by the following technical solutions:
Deflection of bridge span symmetrical expression electrooptical automatic measuring device, it has the horizontal tube of vertically laying along bridge beam body, suitable at interval distance connects vertical communicating pipe on horizontal tube, and is communicated with horizontal tube, and liquid level remains on same surface level in the vertical communicating pipe that respectively is interconnected.Locate to be equipped with respectively a cover photoelectricity liquid level gauge each vertical communicating pipe, and the photoelectricity liquid level gauge is made up of the communication interface of the strip source of arranging along the vertical tube axial direction of communicating pipe and bar shaped photoelectricity receiving array, digital processing circuit, signal, the data-signal of each photoelectricity liquid level gauge is by same signal wire, mode with bus is connected on the external computer, constitutes the automatic Measurement Network of deflection of bridge span.
The position that is provided with of photoelectricity liquid level gauge can be multiple, and a kind of is that the strip source of photoelectricity liquid level gauge and bar shaped photoelectricity receiving array axially are symmetricly set on outer both sides of transparent vertical communicating pipe along vertical communicating pipe.Another kind be with the strip source of photoelectricity liquid level gauge and bar shaped photoelectricity receiving array along vertical communicating pipe axially be symmetricly set on another of inside of vertical communicating pipe transparent in pipe, vertically inwall has light reflection surface communicating pipe.
Described strip source can adopt fluorescent tube, neon light tube, also can adopt a plurality of LED chip are combined on the printed circuit board (PCB) to form luminescence component, perhaps the line source of other modes.Bar shaped photoelectricity receiving array can adopt photodiode array, CCD linear array, also a plurality of photodiode chips can be combined in the half integrated electro receiving unit that forms on the printed circuit board (PCB), or the linear photoconductor receiving element of other modes.The length that strip source and bar shaped photoelectricity connect array can be spliced lengthening on request.
For the signal to noise ratio (S/N ratio) of enhancing signal, can also in transparent vertical communicating pipe, put into float.
Digital processing circuit can young multiple choices, as digital signal processing circuits such as single-chip microcomputer, field programmable logic circuit, DSP, can finish the site disposal of signal.
And the communication of signal also can be adopted interfaces such as RS-485, CAN, RS-232, USB, constitutes the field monitoring network with bus mode and a computer.
Adopt the structure of this patent, just can be by the position of blocking of float to light, reflect that liquid level (being the amount of deflection of bridge at this some place) changes, thereby calculate concrete amount of deflection changing value in real time, accurately by signal processor, and pass through communication interface, be sent to the computer place, realize the multiple spot to deflection of bridge span, real-time, long-term, long-range, high precision, monitoring automatically.
The utility model has the advantages that:
1, adopts photoelectricity transmission principle to form the native system structure, can satisfy the needs of whole measurement range.
2, the output result of photoelectricity receiving array is a digital quantity, precision height, good in anti-interference performance, reliable and stable.
3, the measuring speed of digital processing chip is fast, can realize the dynamic monitoring of amount of deflection.
4, the bus structure of system are convenient to gather automatically focusing on of each point amount of deflection signal, the line data of going forward side by side, and can realize automatic, long-term, dynamic monitoring to deflection of bridge span.
5, can be according to the requirement of deflection metrology scope, strip source and linear photoconductor are accepted array splice, make it have enough length, so that satisfy the requirement of different deflection monitoring scopes.
6, price is more cheap relatively.
Description of drawings
Fig. 1 is a general structure synoptic diagram of the present utility model;
Fig. 2 is the synoptic diagram of the utility model communicating pipe and a kind of structure way of realization of photoelectricity liquid level gauge;
Fig. 3 is the synoptic diagram of the utility model communicating pipe and a kind of structure way of realization of photoelectricity liquid level gauge.
Embodiment
Referring to Fig. 1, this deflection of bridge span symmetrical expression electrooptical automatic measuring device has the horizontal tube of vertically laying along bridge beam body 1, on horizontal tube, suitably connect vertical communicating pipes 3 at interval apart from passing through three-way pipe 2, be communicated with horizontal tube 1, interior dress transparency liquid, liquid level remains on same surface level in the vertical communicating pipes 3 that respectively are interconnected.Be respectively fitted with a cover photoelectricity liquid level gauge 4 each vertical communicating pipe 3, photoelectricity liquid level gauge 4 be by along communicating pipe the ground symmetrically arranged strip source of tubular axis and bar shaped photoelectricity receiving array constitute.Each photoelectricity liquid level gauge 4 connects external power source by power lead 5, signal processor is under the control of bus 6, automatically the output of bar shaped photoelectricity receiving array is gathered, handles, calculated, and result of calculation is carried out subsequent treatment and record by bus transfer to central data processing unit 7.
Referring to Fig. 2, this is a kind of position that is provided with of photoelectricity liquid level gauge, and it adopts fluorescent tube is strip source 13, and adopting photodiode array is bar shaped photoelectricity receiving array 10.Strip source 13 and bar shaped photoelectricity receiving array 10 are equipped with float 8 along symmetrical the fixing of transparent vertical communicating pipes 3 outboard shafts in the pipe.Strip source 13 obtains energy by power supply 12, the light that sends shines directly on the bar shaped photoelectricity receiving array 10 of another side by the transparency liquid 9 in managing, because blocking of float 8, the light distribution that bar shaped photoelectricity receiving array 10 receives has promptly reflected the position signalling of liquid level, after digital signal processor 11 processing, calculating, can result of calculation be sent to bus by communication interface and get on.
Referring to Fig. 3, this is that the another kind of photoelectricity liquid level gauge is provided with the position, and its adopts fluorescent tube as strip source 13, and adopting photodiode array is bar shaped photoelectricity receiving array 10.Strip source 13 and bar shaped photoelectricity receiving array 10 are that edge rotational symmetry of vertical communicating pipes 3 is arranged on transparent interior the pipe in 14 in the pipe, and vertical communicating pipes 3 inwall have light reflection surface, strip source 13 obtains energy by power supply 12, and the light reflection surface back reflection that only shines vertical communicating pipes 3 inwall by transparency liquid 9 that sends receives on the linear array 10 to photoelectricity.This structure can be encapsulated in the photoelectricity liquid level gauge in the transparent interior pipe 14, and it is played a protective role.
Claims (8)
1, deflection of bridge span symmetrical expression electrooptical automatic measuring device, has the horizontal tube of vertically laying along bridge beam body, suitable at interval distance connects vertical communicating pipe on horizontal tube, and be communicated with horizontal tube, liquid level keeps same surface level in the vertical communicating pipe that respectively is interconnected, it is characterized in that: locate to be equipped with respectively a cover photoelectricity liquid level gauge each vertical communicating pipe, the photoelectricity liquid level gauge is by strip source and bar shaped photoelectricity receiving array along the vertically tube axial direction arrangement of communicating pipe, digital processing circuit, the communication interface of signal is formed, the data-signal of each photoelectricity liquid level gauge is by same signal wire, mode with bus is connected on the external computer, constitutes the automatic Measurement Network of deflection of bridge span.
2, deflection of bridge span symmetrical expression electrooptical automatic measuring device according to claim 1 is characterized in that: the strip source of photoelectricity liquid level gauge and bar shaped photoelectricity receiving array axially are symmetricly set on outer both sides of transparent vertical communicating pipe along vertical communicating pipe.
3, deflection of bridge span symmetrical expression electrooptical automatic measuring device according to claim 1, it is characterized in that: the strip source of photoelectricity liquid level gauge and bar shaped photoelectricity receiving array along vertical communicating pipe axially be symmetricly set on another of inside of vertical communicating pipe transparent in pipe, vertically inwall has light reflection surface communicating pipe.
4, according to claim 2 or 3 described deflection of bridge span symmetrical expression electrooptical automatic measuring devices, it is characterized in that: the half integrated light-emitting assembly that strip source adopts daylight lamp, neon bulb or a plurality of light-emitting diode chip for backlight unit are formed on a printed circuit board (PCB) by linear combination, and the length of strip source can be spliced lengthening on request.
5, according to claim 2 or 3 described deflection of bridge span symmetrical expression electrooptical automatic measuring devices, it is characterized in that: bar shaped photoelectricity receiving array can adopt photodiode array, CCD linear array, also a plurality of photodiode chips can be combined in the half integrated electro receiving unit that forms on the printed circuit board (PCB), and the length of bar shaped photoelectricity receiving array can be spliced lengthening on request.
6, according to claim 2 or 3 described deflection of bridge span electrooptical automatic measuring systems, it is characterized in that: vertically can be provided with float in communicating pipe.
7, according to claim 1,2 or 3 described deflection of bridge span symmetrical expression electrooptical automatic measuring devices, it is characterized in that: digital processing circuit can adopt single-chip microcomputer, field programmable logic circuit or DSP digital signal processing circuit.
8, according to claim 1,2 or 3 described deflection of bridge span symmetrical expression electrooptical automatic measuring devices, it is characterized in that: the data-signal of each photoelectricity liquid level gauge, can pass through RS-485, CAN, RS-232, USB interface, constitute the field monitoring network with bus mode and a computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320127308 CN2674442Y (en) | 2003-12-31 | 2003-12-31 | Bridge deflection symmetric photoelectric automatic measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320127308 CN2674442Y (en) | 2003-12-31 | 2003-12-31 | Bridge deflection symmetric photoelectric automatic measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2674442Y true CN2674442Y (en) | 2005-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320127308 Expired - Lifetime CN2674442Y (en) | 2003-12-31 | 2003-12-31 | Bridge deflection symmetric photoelectric automatic measurer |
Country Status (1)
| Country | Link |
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| CN (1) | CN2674442Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285729B (en) * | 2008-06-05 | 2010-04-21 | 天津大学 | Arch bridge deflection measuring apparatus |
| CN102435228A (en) * | 2011-11-02 | 2012-05-02 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Large-scale bridge structure health monitoring method based on three-dimensional modeling simulation |
| CN110273379A (en) * | 2019-06-03 | 2019-09-24 | 中铁大桥局集团有限公司 | A kind of multiple spot lifting balance control device and control method and application |
| CN111504245A (en) * | 2020-04-24 | 2020-08-07 | 山东高速工程检测有限公司 | Bridge linear measuring method in operation period |
| CN113029477A (en) * | 2021-03-11 | 2021-06-25 | 西南交通大学 | Photoelectric type multichannel communicating pipe liquid level bridge deflection measuring device and method |
-
2003
- 2003-12-31 CN CN 200320127308 patent/CN2674442Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285729B (en) * | 2008-06-05 | 2010-04-21 | 天津大学 | Arch bridge deflection measuring apparatus |
| CN102435228A (en) * | 2011-11-02 | 2012-05-02 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Large-scale bridge structure health monitoring method based on three-dimensional modeling simulation |
| CN102435228B (en) * | 2011-11-02 | 2014-10-29 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Large-scale bridge structure health monitoring method based on three-dimensional modeling simulation |
| CN110273379A (en) * | 2019-06-03 | 2019-09-24 | 中铁大桥局集团有限公司 | A kind of multiple spot lifting balance control device and control method and application |
| CN111504245A (en) * | 2020-04-24 | 2020-08-07 | 山东高速工程检测有限公司 | Bridge linear measuring method in operation period |
| CN113029477A (en) * | 2021-03-11 | 2021-06-25 | 西南交通大学 | Photoelectric type multichannel communicating pipe liquid level bridge deflection measuring device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131231 Granted publication date: 20050126 |