CN2393077Y - Differential capacitance type deformation monitoring instrument having self-checking function - Google Patents
Differential capacitance type deformation monitoring instrument having self-checking function Download PDFInfo
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- CN2393077Y CN2393077Y CN 99229537 CN99229537U CN2393077Y CN 2393077 Y CN2393077 Y CN 2393077Y CN 99229537 CN99229537 CN 99229537 CN 99229537 U CN99229537 U CN 99229537U CN 2393077 Y CN2393077 Y CN 2393077Y
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Abstract
The utility model relates to a differential capacitance type perpendicular coordinatograph and/or a differential capacitance type bracing wire device, which is matched with a measurement and control device and used for measuring the horizontal displacement of a large dam of a hydraulic power station, a building, etc. The differential capacitance type perpendicular coordinatograph is composed of two pairs of parallel measuring pole plates which are mutually vertical, a cylindrical middle pole which is arranged between the parallel measuring pole plates and a shell. The differential capacitance type bracing wire device is composed of a pair of parallel measuring pole plates which are horizontally arranged, a cylindrical middle pole between the parallel measuring pole plates and a shell. A base of the perpendicular coordinatograph or the bracing wire device is provided with at least two pieces of vertically parallel arranged self correction metal pole plates, and a certain distance is reserved between the self correction metal pole plates and the measuring pole plate of the differential capacitance type perpendicular coordinatograph or the measuring pole plate of the differential capacitance type bracing wire device. The self correction metal pole plates, each measuring pole plate of the differential capacitance type perpendicular coordinatograph and the differential capacitance type bracing wire device and middle poles are all connected to an input end of a measuring module of the measurement and control device through respective wires.
Description
The utility model relates to a kind of being used for and the supporting deformation monitoring instrument of measuring horizontal shifts such as power station dam, buildings of measure and control device, particularly a kind of differential capacitance type plumb line coordinator and/or differential capacitance type tensile-line instrument.
Existing differential capacitance type deformation monitoring instrument mainly is differential capacitance type plumb line coordinator and differential capacitance type tensile-line instrument, plumb line coordinator is made up of with cylindrical dynode that is positioned at their centres two pairs of horizontal survey pole plates of mutually perpendicular direction, measuring pad is placed on the interior pedestal of Instrument shell, its cylindrical dynode is fixed on the vertical line of vertical line device, and move in the horizontal direction with moving of vertical line, thereby changed the capacitance ratio in two groups of measuring pads, the distortion that records dam body or buildings.The differential capacitance type tensile-line instrument then is made up of a pair of horizontally disposed horizontal survey pole plate and cylindrical dynode that is positioned at their centres, measuring pad also is placed on the interior pedestal of Instrument shell, its cylindrical dynode is fixed on and draws the drawing in the bracing cable of bracing cable device, and move in the horizontal direction with drawing moving of bracing cable, thereby changed the capacitance ratio in a pair of measuring pad, recorded the distortion of dam body or buildings.In plumb line coordinator and the tensile-line instrument each measuring pad and dynode thereof all the lead by separately be connected with the input end of measurement module in the measure and control device.But existing differential capacitance type plumb line coordinator and differential capacitance type tensile-line instrument all do not have the self-correcting function, so the result who measures can't determine correctness, can not reflect the distortion situation of dam or buildings truely and accurately, and its measured value practical value is little.
The purpose of this utility model is exactly in order to address the above problem, and a kind of differential capacitance type deformation monitoring instrument that can reflect the band self-correcting function of dam or building deformation situation truely and accurately is provided.
Technical solution of the present utility model:
A kind of differential capacitance type deformation monitoring instrument with the self-correcting function, it includes by the two pairs of horizontal survey pole plates of mutually perpendicular direction and is positioned at cylindrical dynode in the middle of their and plumb line coordinator that housing is formed or by a pair of horizontally disposed horizontal survey pole plate be positioned at cylindrical dynode of their centres and the tensile-line instrument that housing is formed, wherein, two pairs of measuring pads of plumb line coordinator are placed on the interior pedestal of Instrument shell, its cylindrical dynode is fixed on the vertical line of vertical line device, the a pair of measuring pad of tensile-line instrument is placed on the interior pedestal of Instrument shell, its cylindrical dynode is fixed on and draws the drawing in the bracing cable of bracing cable device, it is characterized in that on the pedestal of plumb line coordinator or tensile-line instrument, being provided with the self-correcting metal polar plate of at least two vertical parallel installation, and keep a determining deviation between measuring pad in this self-correcting metal polar plate and the plumb line coordinator or the measuring pad in the tensile-line instrument, each measuring pad and dynode all insert the input end of measurement module in the measure and control device in self-correcting metal polar plate and plumb line coordinator or the tensile-line instrument by lead separately.
The utility model is first at differential capacitance type deformation monitoring instrument; be to be provided with the differential capacitance type self-calibrating apparatus on differential capacitance type plumb line coordinator and the differential capacitance type tensile-line instrument; relative position between its self-correcting pole plate is constant forever; the capacitance ratio that records is a steady state value; so can be used as the self-correcting benchmark of differential capacitance type plumb line coordinator and differential capacitance type tensile-line instrument; thereby the distortion situation that can reflect dam or buildings truely and accurately makes the result of measurement that reliable assurance arranged.The utility model is simple in structure, and cost is low, produce easily, and its monitoring accuracy height, functional reliability is good, and is practical, has good social benefit and economic benefit.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the structural representation of the utility model differential capacitance type plumb line coordinator;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the perspective view of each pole plate and dynode in Fig. 1 inside;
Fig. 4 is the structural representation of the utility model differential capacitance type tensile-line instrument;
Fig. 5 is the vertical view of Fig. 4;
Fig. 6 is the perspective view of each pole plate and dynode in Fig. 4 inside.
As Fig. 1-6, the utility model includes two pairs of horizontal survey pole plates 1 by mutually perpendicular direction, 2 and be positioned at plumb line coordinator that cylindrical dynode 3 in the middle of them and housing 4 form or by a pair of horizontally disposed horizontal survey pole plate 7 be positioned at cylindrical dynode 8 in the middle of them and tensile-line instrument that housing 9 is formed, wherein, two pairs of measuring pads 1 of plumb line coordinator, on 2 pedestals 5 that are placed in the Instrument shell 4, its cylindrical dynode 3 is fixed on the vertical line 6 of vertical line device, the a pair of measuring pad 7 of tensile-line instrument is placed on the pedestal 10 in the Instrument shell 9, its cylindrical dynode 8 is fixed on and draws the drawing in the bracing cable 11 of bracing cable device, characteristics of the present utility model are, on the pedestal 5 of plumb line coordinator or tensile-line instrument or pedestal 10, be provided with the self-correcting metal polar plate 12 of at least two vertical parallel installation, and keep a determining deviation between measuring pad in this self-correcting metal polar plate 12 and the plumb line coordinator or the measuring pad in the tensile-line instrument, to prevent mutual interference, each measuring pad 1 in self-correcting metal polar plate 12 and the plumb line coordinator, 2 and dynode 3 or tensile-line instrument in each measuring pad 7 and dynode 8 all insert the input end of measurement module in the measure and control devices by lead 13 separately.
In the utility model, self-correcting metal polar plate 12 is preferably three, keeps a determining deviation between them, and they preferably are installed in the position in corresponding arbitrary measuring pad outside of pedestal 5 in plumb line coordinator or the tensile-line instrument or pedestal 10.
During the actual use of the utility model, plumb line coordinator and/or tensile-line instrument are installed on tested dam or the buildings, each self-correcting metal polar plate 12 and measuring pad 1 in its plumb line coordinator and/or the tensile-line instrument, 2,7 and dynode 3,8 all are connected with the input end of measurement module in the measure and control device (model can be MCUM-30 type or MCV-M type), when the vertical line 6 of vertical line device and/or draw the bracing cable device draw bracing cable 11 when driving the dynode displacement of plumb line coordinators and/or tensile-line instrument, measure and control device just can be measured the capacitance variations of its measuring pad and dynode, and its capacitance ratio promptly reflects the size of the horizontal shift of dam or buildings.The capacity ratio of self-correcting metal polar plate does not change because of vertical line 6 and/or the displacement of drawing bracing cable 11, and measure and control device is measured an invariable self-correcting capacity ratio, and it can be used as the self-correcting value of displacement measurement data accuracy, so guaranteed the functional reliability of monitoring instrument.
Claims (2)
1, a kind of differential capacitance type deformation monitoring instrument with the self-correcting function, it includes by the two pairs of horizontal survey pole plates of mutually perpendicular direction and is positioned at cylindrical dynode in the middle of their and plumb line coordinator that housing is formed or by a pair of horizontally disposed horizontal survey pole plate be positioned at cylindrical dynode of their centres and the tensile-line instrument that housing is formed, wherein, two pairs of measuring pads of plumb line coordinator are placed on the interior pedestal of Instrument shell, its cylindrical dynode is fixed on the vertical line of vertical line device, the a pair of measuring pad of tensile-line instrument is placed on the interior pedestal of Instrument shell, its cylindrical dynode is fixed on and draws the drawing in the bracing cable of bracing cable device, it is characterized in that on the pedestal of plumb line coordinator or tensile-line instrument, being provided with the self-correcting metal polar plate of at least two vertical parallel installation, and keep a determining deviation between measuring pad in this self-correcting metal polar plate and the plumb line coordinator or the measuring pad in the tensile-line instrument, each measuring pad and dynode all insert the input end of measurement module in the measure and control device in self-correcting metal polar plate and plumb line coordinator or the tensile-line instrument by lead separately.
2, press the differential capacitance type deformation monitoring instrument of the described band self-correcting of claim 1 function, it is characterized in that described self-correcting metal polar plate should be three, keep a determining deviation between them, they should be installed in the position in corresponding arbitrary measuring pad outside of pedestal in plumb line coordinator or the tensile-line instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229537 CN2393077Y (en) | 1999-09-30 | 1999-09-30 | Differential capacitance type deformation monitoring instrument having self-checking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229537 CN2393077Y (en) | 1999-09-30 | 1999-09-30 | Differential capacitance type deformation monitoring instrument having self-checking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2393077Y true CN2393077Y (en) | 2000-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99229537 Expired - Fee Related CN2393077Y (en) | 1999-09-30 | 1999-09-30 | Differential capacitance type deformation monitoring instrument having self-checking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2393077Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222735A (en) * | 2015-10-12 | 2016-01-06 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of plumb line coordinator dust and water proof apparatus and installation method thereof |
| CN106524895A (en) * | 2016-10-27 | 2017-03-22 | 广东工业大学 | Capacitance sensor-based strain test device of magnetic shape memory alloy |
| CN107543486A (en) * | 2017-06-26 | 2018-01-05 | 国电南京自动化股份有限公司 | A kind of adaptive dynode of condenser type tensile-line instrument |
| CN109282776A (en) * | 2018-10-19 | 2019-01-29 | 长江水利委员会长江科学院 | Tensile-line instrument automates caliberating device and its scaling method |
-
1999
- 1999-09-30 CN CN 99229537 patent/CN2393077Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222735A (en) * | 2015-10-12 | 2016-01-06 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of plumb line coordinator dust and water proof apparatus and installation method thereof |
| CN106524895A (en) * | 2016-10-27 | 2017-03-22 | 广东工业大学 | Capacitance sensor-based strain test device of magnetic shape memory alloy |
| CN106524895B (en) * | 2016-10-27 | 2019-01-01 | 广东工业大学 | A kind of strain detection testing device of the magnetic control shape memory alloy based on capacitance sensor |
| CN107543486A (en) * | 2017-06-26 | 2018-01-05 | 国电南京自动化股份有限公司 | A kind of adaptive dynode of condenser type tensile-line instrument |
| CN107543486B (en) * | 2017-06-26 | 2019-10-15 | 国电南京自动化股份有限公司 | A kind of adaptive dynode of condenser type tensile-line instrument |
| CN109282776A (en) * | 2018-10-19 | 2019-01-29 | 长江水利委员会长江科学院 | Tensile-line instrument automates caliberating device and its scaling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |