CN101788286B - Device and method for measuring vertical displacement of buildings - Google Patents
Device and method for measuring vertical displacement of buildings Download PDFInfo
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- CN101788286B CN101788286B CN201010129336XA CN201010129336A CN101788286B CN 101788286 B CN101788286 B CN 101788286B CN 201010129336X A CN201010129336X A CN 201010129336XA CN 201010129336 A CN201010129336 A CN 201010129336A CN 101788286 B CN101788286 B CN 101788286B
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Abstract
The invention discloses a device and a method for measuring the vertical displacement of buildings, wherein using the principal of connected pipes to realize multipoint communication, the device converts small elevation variation at an equipment installation location into vertical position variation of a liquid level interface by measuring the position of the liquid level interface in a communicating container, and the vertical position variation of the liquid level interface is directly detected by a CCD sensor or a PSD photoelectric device. The functions of the CCD sensor or the PSD photoelectric device such as program control driving, signal processing and identification, data acquisition, communication with computers, etc. are implemented by using a single chip machine. The device integrates sensor and peripheral circuit and is manufactured by specially-designed moulds, thereby achieving good integrity and sealing performance and convenient installation. The device can be used for observing the vertical deformation of dam, bridge, dock, high slope, ground fissure, fault, weak intercalated layer, etc.
Description
Technical field
The present invention relates to a kind of measurement mechanism and measuring method, particularly a kind of device and method that is used to measure vertical displacement of buildings.
Background technology
Because the measurement mechanism of at present domestic involved vertical displacement of buildings is fewer, and measurement of factor is high, can not realize the accurate measurement to vertical displacement of buildings, giving needs the staff who gathers vertical displacement of buildings to bring very big inconvenience.
Summary of the invention
The purpose of this invention is to provide a kind of communicating pipe technology that the terrestrial gravitation face is made reference field of using, can measure the apparatus and method of vertical displacement of buildings exactly, can solve the inaccurate and not high problem of measuring accuracy of present measurement vertical displacement of buildings.
For reaching above purpose, the present invention takes following technical scheme to be achieved:
A kind of device of measuring vertical displacement of buildings; A kind of device of measuring vertical displacement of buildings comprises an optical lens, and the focal point settings of this optical lens one side has light source; The optical lens opposite side is provided with the light-receiving that is connected with peripheral SCM system and receives device; It is characterized in that optical lens and light-receiving receive the light path between the device to be provided with a vertical glass tube, this glass tube bottom places the big liquid container of vertical displacement of buildings basic point to be communicated with one; In this big liquid container light-transmissive fluid is housed, its liquid level is consistent with the height of glass tube bottom light-transmissive fluid liquid level; The transmittance low liquid immiscible with the bottom light-transmissive fluid is equipped with on the top of glass tube, in glass tube, forms the liquid level interphase of level between two kinds of immiscible liquid.
In the such scheme, said peripheral SCM system comprises that completion program control driving, signal Processing and identification, data acquisition reach and the basic unit module of the communication of computing machine.
Said light source is laser instrument or photodiode; Said light receiving element is CCD photoreceptor or PSD photoelectric device.Said light-transmissive fluid is the distilled water that contains anti freezing solution; The liquid that the top transmittance is low, its transmittance are 0-20%.
A kind ofly measure the method for vertical displacement of buildings, it is characterized in that, comprise the steps: with aforementioned means
(a) measurement of fixed point height relatively:
At first open light source and make its light transmission optical lens that sends be converted into directional light, shine on the vertical glass tube that two kinds of liquid are housed; Then; The light that shines the glass tube bottom is projected on the light receiving element through light-transmissive fluid; The light that shines glass tube top is by the low liquid obscures of transmittance; Thereby make the liquid level interphase of glass tube top and the bottom on light receiving element, form the horizontal projection line, the height h1 of this horizontal projection line is the height of glass tube bottom printing opacity liquid level; The bulk container liquid level that also promptly is communicated with the glass tube bottom is relative fixed point height;
(b) measurement of moving relatively some height:
When buildings produces perpendicular displacement; Place the big liquid container on the vertical displacement of buildings basic point also to produce perpendicular displacement thereupon; Thereby make the liquid level of the glass tube bottom light-transmissive fluid that is communicated with it also produce displacement; The horizontal projection line height that light receiving element collects is changed to h2 thereupon, is called moving relatively some height
(c) the relative fixed point height h1 that the moving relatively some height h2 that step (b) is obtained and step (a) obtain relatively, both differences are the perpendicular displacement of buildings generation.
Compared with prior art; Measurement mechanism of the present invention selects to use the static level communicating pipe technical scheme that the terrestrial gravitation face is made reference field; Under action of gravity, keep the consistent connecting pipe principle of liquid level elevation according to the liquid medium in communicating pipe; Adopt formed liquid level interphase between two kinds of immiscible liquid, after light transmission optical lens that light source sends is converted into directional light, shine on the measurement glass tube that two kinds of liquid are housed.The Lower Half beam split can transmissive, and then is received by CCD device or PSD photoelectric device; The light of the first half can not transmissive; The height that CCD device or PSD photoelectric device collect is the latter half liquid levels height (being relative fixed point height); When buildings produces perpendicular displacement; The liquid level of measuring the latter half liquid of glass tube also can produce displacement (raising or reduction); Variation has also taken place in the liquid level interface location that this moment, CCD device or PSD photoelectric device collected, and liquid level interface location that collects this moment and fixed point aspect ratio relatively just can accurately be obtained the numerical value of vertical displacement of buildings.
In addition, adopt and the immiscible low liquid of transmittance of bottom light-transmissive fluid on measuring tube of the present invention top, not only can clearly obtain the position of lower liquid liquid level, and upper liquid also plays the effect of pushing off the slag.Prevent in measuring process, to have lighttight impurity to be attached to glass tube walls, to fall into lower liquid; It is influenced to make transmission cross the vertical direction scope of light of glass tube; The data that cause CCD device or PSD photoelectric device to collect are inaccurate, thus the precision that influence is measured.
Apparatus of the present invention can be widely used in the vertical deformation of Measurement of Dam, bridge, harbour, high slope, ground fissure, tomography, weak intercalated layer etc.
Description of drawings
Fig. 1 is used for the structural principle synoptic diagram of vertical displacement of buildings monitoring device for the present invention.
Among the figure, 1, light source; 2, optical lens; 3, light-transmissive fluid; 4, the horizontal liquid level interphase of levels immiscible liquid; 5, the low liquid of transmittance; 6, the interfacial horizontal projection line of liquid level; 7, CCD photoreceptor or PSD photoelectric device; 8, vertical glass tube.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed description.
As shown in Figure 1, a kind of device of measuring vertical displacement of buildings is made up of light source 1 (laser instrument or photodiode), optical lens 2, glass tube 8, CCD photoreceptor or PSD photoelectric device 7 etc.Light source 1 all is fixed on the instrument base plate with CCD photoreceptor 7 or PSD photoelectric device.Light source 1 places the along of lens, and the directional light visual field that sees through lens 2 is enough big, can fully cover whole measuring weight range and CCD photoreceptor or PSD photoelectric device 7.The low liquid of transmittance 5 is equipped with on glass tube 8 tops; The bottom is communicated with big liquid container (not drawing among the figure); Big liquid container is placed on the plane of relative vertical direction non-displacement (vertical displacement of buildings basic point); Light-transmissive fluid wherein is housed (to be considered from economic angle; The present invention adopts the distilled water that contains anti freezing solution), its liquid level and glass tube 8 bottom liquid levels are consistent.Because glass tube 8 is communicated with big liquid container, so its underpart solution also be light-transmissive fluid, and the liquid 5 that light-transmissive fluid 3 is low with the top transmittance (from all angles consideration, the present invention adopts a kind of at the heavy oil of 0-20% or saturated phenol of transmittance) is immiscible.Two kinds of immiscible liquid form the liquid level interphase 4 of one level in glass tube 8.
Measure the method for vertical displacement of buildings with Fig. 1 institute device, before buildings produces perpendicular displacement, after light transmission optical lens 2 that light source 1 sends is converted into directional light (light source 1 places the along of lens), shine on the glass tube 8 that two kinds of liquid are housed.Lower liquid printing opacity, upper liquid be at a distance from light, and horizontal liquid level interphase 4 projects to the liquid level h1 that horizontal projection line 6 on CCD photoreceptor or the PSD photoelectric device 7 is lower liquid.
Before buildings produces perpendicular displacement; Place the big liquid container on the vertical displacement of buildings basic point also to produce perpendicular displacement thereupon; Thereby make the liquid level of the low liquid 3 of the glass tube 8 bottom transmittances that are communicated with it also produce displacement, the height value that this moment, CCD photoreceptor or PSD photoelectric device measured is h2, is called moving relatively some height; H2 is compared with fixed point height h1 before, and the difference that draws is the displacement that the buildings vertical direction produces.
The liquid 5 that upper liquid adopts with lower liquid is immiscible and transmittance is low not only can make CCD photoreceptor or PSD photoelectric device 7 clearly obtain the height of light-transmissive fluid 3 liquid levels, and the low liquid 5 of transmittance also plays the effect of pushing off the slag.Prevent in measuring process, to have impurity to paste glass tube walls, fall into light-transmissive fluid 3, it is influenced to make transmission cross the vertical direction scope of light of glass tube, and the data that cause CCD photoreceptor or PSD photoelectric device 7 to collect are inaccurate, thus the precision that influence is measured.
The said big liquid container of the present invention can be communicated with glass tube 8 multiple spots of a plurality of Fig. 1 devices, sets up a plurality of measuring points.
CCD photoreceptor or PSD photoelectric device 7 can be connected with peripheral SCM system (comprise and accomplish program control driving, signal Processing and identification, data acquisition and and the modules such as communication of computing machine).When directional light shone to CCD photoreceptor or PSD photoelectric device, horizontal liquid level interphase 4 produced a horizontal projection line 6 in the glass tube 8 on CCD photoreceptor or PSD photoelectric device, and the pixel of CCD photoreceptor or PSD photoelectric device converts light intensity to quantity of electric charge storage.CCD photoreceptor or PSD photoelectric device driver produce the respective logic sequential charge information are shifted out; After the output signal is handled through shaping; Calculate the accurate position of horizontal liquid level interphase 4; Obtain the shift value of measuring point liquid level in view of the above, the result sends to monitoring computer or other external equipments through communication interface.Program control driving, signal Processing and identification, data acquisition reach and the functions such as communication of computing machine all are to be realized by peripheral SCM system.
Claims (2)
1. device of measuring vertical displacement of buildings; Comprise an optical lens; The focal point settings of this optical lens one side has light source, and the optical lens opposite side is provided with the light receiving element that is connected with peripheral SCM system, it is characterized in that; Light path between optical lens and the light receiving element is provided with a vertical glass tube; This glass tube bottom places the big liquid container of vertical displacement of buildings basic point to be communicated with one, in this big liquid container light-transmissive fluid is housed, and its liquid level is consistent with the height of glass tube bottom light-transmissive fluid liquid level; The transmittance low liquid immiscible with the bottom light-transmissive fluid is equipped with on the top of glass tube, in glass tube, forms the liquid level interphase of level between two kinds of immiscible liquid.
2. method of measuring vertical displacement of buildings is based on claim 1 and measures that the device of vertical displacement of buildings realizes, it is characterized in that, comprises the steps:
(a), the measurement of fixed point height relatively:
At first open light source and make its light transmission optical lens that sends be converted into directional light, shine on the vertical glass tube that two kinds of liquid are housed; Then; The light that shines the glass tube bottom is projected on the light receiving element through light-transmissive fluid; The light that shines glass tube top is by the low liquid obscures of transmittance; Thereby make the liquid level interphase of glass tube top and the bottom on light receiving element, form the horizontal projection line, the height h1 of this horizontal projection line is the height of glass tube bottom printing opacity liquid level; The bulk container liquid level that also promptly is communicated with the glass tube bottom is relative fixed point height;
(b), the measurement of moving relatively some height:
When buildings produces perpendicular displacement; Place the big liquid container on the vertical displacement of buildings basic point also to produce perpendicular displacement thereupon; Thereby make the liquid level of the glass tube bottom light-transmissive fluid that is communicated with it also produce displacement; The horizontal projection line height that light receiving element collects is changed to h2 thereupon, is called moving relatively some height
(c), the relative fixed point height h1 that obtains of moving relatively some height h2 and step (a) that step (b) is obtained relatively, both differences are the perpendicular displacement of buildings generation.
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| CN201010129336XA CN101788286B (en) | 2010-03-22 | 2010-03-22 | Device and method for measuring vertical displacement of buildings |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679885A (en) * | 2012-05-22 | 2012-09-19 | 江门市蒙德电气股份有限公司 | Tubular object displacement identification device based on machine vision |
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| CN102072720B (en) * | 2010-12-21 | 2014-04-23 | 西安交通大学 | High accuracy measuring method for in-tube liquid level elevation of photoelectric and tubular settlement meter |
| CN102494666A (en) * | 2011-11-25 | 2012-06-13 | 天津市翔晟远电力设备实业有限公司 | Management system for detecting building settlement and method thereof |
| CN106247981A (en) * | 2016-08-26 | 2016-12-21 | 广西玉柴机器股份有限公司 | A kind of pipe parts detection method |
| CN106644606A (en) * | 2016-11-17 | 2017-05-10 | 西安培华学院 | Collection device of expired air condensed liquid |
| CN107869982A (en) * | 2017-12-14 | 2018-04-03 | 中国地震局地壳应力研究所 | A kind of new hydrostatic level based on line array CCD |
| CN110987125A (en) * | 2019-12-24 | 2020-04-10 | 广州市怡文环境科技股份有限公司 | Liquid level detector |
| CN112325844B (en) * | 2020-10-30 | 2022-06-21 | 苏州理欧电子科技有限公司 | Liquid sedimentation detection device |
| CN113029477B (en) * | 2021-03-11 | 2022-03-01 | 西南交通大学 | Photoelectric type multichannel communicating pipe liquid level bridge deflection measuring device and method |
| CN115478538B (en) * | 2022-09-08 | 2023-11-28 | 中电建路桥集团有限公司 | Concrete pouring surface inductor |
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| JP2007316041A (en) * | 2006-05-23 | 2007-12-06 | Sakata Denki | Liquid level position detector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679885A (en) * | 2012-05-22 | 2012-09-19 | 江门市蒙德电气股份有限公司 | Tubular object displacement identification device based on machine vision |
| CN102679885B (en) * | 2012-05-22 | 2014-06-04 | 江门市蒙德电气股份有限公司 | Tubular object displacement identification device based on machine vision |
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Application publication date: 20100728 Assignee: Xi'an Huateng Optoelectronic Co., Ltd. Assignor: Xi'an Jiao Tong University| Xi'an Huateng optoelectronic Co Ltd Contract record no.: 2015610000086 Denomination of invention: Device and method for measuring vertical displacement of buildings Granted publication date: 20120104 License type: Exclusive License Record date: 20150821 |
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