CN2393076Y - Differential capacitance type prependicular coordinatograph - Google Patents
Differential capacitance type prependicular coordinatograph Download PDFInfo
- Publication number
- CN2393076Y CN2393076Y CN 99229536 CN99229536U CN2393076Y CN 2393076 Y CN2393076 Y CN 2393076Y CN 99229536 CN99229536 CN 99229536 CN 99229536 U CN99229536 U CN 99229536U CN 2393076 Y CN2393076 Y CN 2393076Y
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- measuring
- measuring pad
- capacitance type
- differential capacitance
- pole plates
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Abstract
The utility model relates to a differential capacitance type prependicular coordinatograph, which is matched with a measurement-control device and used for measuring horizontal displacements of large dams of hydraulic power stations, buildings, etc. The utility model is composed of two pairs of mutually perpendicular parallel measuring pole plates and cylindrical middle poles which are arranged between the parallel measuring pole plates. Each measuring pole plate and each middle pole are connected with an input end of a measuring module of the measurement-control device through respective lead wire. The mutually perpendicular parallel measuring pole plates are vertical rectangular plates and the width of each measuring pole plate is 1/3-2/3 of the distance between two corresponding parallel measuring pole plates. The height of each measuring pole plate is equal to or bigger than the width of each measuring pole plate.
Description
The utility model relates to a kind of being used for and the supporting differential capacitance type plumb line coordinator of measuring horizontal shifts such as power station dam, buildings of measure and control device.
Existing differential capacitance type plumb line coordinator is made up of the parallel flat rectangle measuring pad of two couple of mutually perpendicular direction and the cylindrical dynode that is positioned at their centres, the two pairs of measuring pads are installed on the pedestal one and are located in the housing, dynode is fixed on the vertical line of vertical line device, and each measuring pad and the dynode all lead by separately link to each other with the input end of the measurement module of measure and control device.But two pairs of parallel flat rectangle measuring pads lean on closely excessively between adjacent in the existing differential capacitance type plumb line coordinator, can cause the measurement phase mutual interference of both direction in then measuring, and each measuring pad useful area is too small, cause between pole plate electric capacity minimum, the influence of signal very easily is interfered, can not telemeasurement, measuring accuracy can not get guaranteeing.
The purpose of this utility model is exactly in order to address the above problem, and provides a kind of influence of the signal that is difficult for being interfered, the differential capacitance type plumb line coordinator that measuring accuracy can reliably be guaranteed.
Technical solution of the present utility model:
A kind of differential capacitance type plumb line coordinator, it is made up of with the cylindrical dynode that is positioned at their centres two pairs of horizontal survey pole plates of mutually perpendicular direction, the two pairs of measuring pads are installed on the pedestal one and are located in the housing, dynode is fixed on the vertical line of vertical line device, each measuring pad and the dynode all lead by separately link to each other with the input end of the measurement module of measure and control device, two pairs of horizontal survey pole plates that it is characterized in that mutually perpendicular direction are vertical rectangular slab, the width of its each measuring pad is the 1/3-2/3 of distance between the two relative horizontal survey pole plates, and the height of each measuring pad is equal to or greater than the width of each measuring pad.
The utility model adopts structure optimization, the width of two pairs of orthogonal horizontal survey pole plates is suitably reduced, and improve their height, the useful area of measuring pad is increased, so not only eliminate influencing each other of distributed capacitance between the measuring pad, increased electric capacity again, improved antijamming capability, can carry out telemeasurement, measuring accuracy can reliably be guaranteed.The utility model also can be eliminated the influence that environment temperature and seasonal variations cause simultaneously.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the perspective view of each measuring pad and dynode among Fig. 1;
Fig. 4 is a prime amplifier electrical schematic diagram of the present utility model.
As Fig. 1-3, the utility model is made up of with the cylindrical dynode 2 that is positioned at their centres two pairs of horizontal survey pole plates 1 of mutually perpendicular direction, the two pairs of measuring pads 1 are installed on the pedestal 3 one and are located in the housing 4, dynode 2 is fixed on the vertical line 5 of vertical line device, each measuring pad 1 and the dynode 2 all lead 6 by separately link to each other with the input end of the measurement module of measure and control device, characteristics of the present utility model are, two pairs of horizontal survey pole plates 1 of mutually perpendicular direction are vertical rectangular slab, the width of its each measuring pad 1 is the 1/3-2/3 of distance between the two relative horizontal survey pole plates, and the best is 1/2 of its distance.The height of each measuring pad 1 is equal to or greater than the width of each measuring pad, make the distance between each adjacent measuring pad 1 strengthen, usually reach more than 30 millimeters, make mutual interference reduction, the useful area of each measuring pad 1 is increased, usually the useful area than existing measuring pad increases 3-4 doubly, and measurement sensitivity is improved.Distance between the of the present utility model two relative horizontal survey pole plates 1 is decided according to the size and the requirement of measured object.
For further improving measuring accuracy, the utility model inserts prime amplifier 7 between each measuring pad 1 and measure and control device, as shown in Figure 4, this amplifier 7 also is placed on the pedestal 3 of plumb line coordinator, it is made up of amplification integrated block IC and peripheral resistance, electric capacity, the lead 6 of its each measuring pad 1 of input termination, its output terminal are drawn the input end of the measurement module that connects measure and control device (model can be MCUM-30 type or MCV-M type) from plumb line coordinator.Like this, it can carry out pre-service to minimum output signal, has thoroughly eliminated the influence of long lead to condenser type plumb line coordinator measurement result, and measuring distance is increased greatly.
Claims (4)
1, a kind of differential capacitance type plumb line coordinator, it is made up of with the cylindrical dynode that is positioned at their centres two pairs of horizontal survey pole plates of mutually perpendicular direction, the two pairs of measuring pads are installed on the pedestal one and are located in the housing, dynode is fixed on the vertical line of vertical line device, each measuring pad and the dynode all lead by separately link to each other with the input end of the measurement module of measure and control device, two pairs of horizontal survey pole plates that it is characterized in that mutually perpendicular direction are vertical rectangular slab, the width of its each measuring pad is the 1/3-2/3 of distance between the two relative horizontal survey pole plates, and the height of each measuring pad is equal to or greater than the width of each measuring pad.
2, by the described differential capacitance type plumb line coordinator of claim 1, the width that it is characterized in that described each measuring pad be between the two relative horizontal survey pole plates distance 1/2.
3,, it is characterized in that distance between each adjacent measuring pad is greater than 30 millimeters by claim 1 or 2 described differential capacitance type plumb line coordinators.
4, by the described differential capacitance type plumb line coordinator of claim 1, it is characterized in that between each measuring pad and measure and control device, inserting prime amplifier, this amplifier is placed on the pedestal of plumb line coordinator, it is made up of amplification integrated block IC and peripheral resistance, electric capacity, the lead of its each measuring pad of input termination, its output terminal is drawn the input end of the measurement module that connects measure and control device from plumb line coordinator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229536 CN2393076Y (en) | 1999-09-30 | 1999-09-30 | Differential capacitance type prependicular coordinatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229536 CN2393076Y (en) | 1999-09-30 | 1999-09-30 | Differential capacitance type prependicular coordinatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2393076Y true CN2393076Y (en) | 2000-08-23 |
Family
ID=34018767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99229536 Expired - Fee Related CN2393076Y (en) | 1999-09-30 | 1999-09-30 | Differential capacitance type prependicular coordinatograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2393076Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691987B (en) * | 2009-10-12 | 2011-10-05 | 国网电力科学研究院 | Inductive plumb coordinator |
| CN108303017A (en) * | 2018-04-13 | 2018-07-20 | 昆明理工大学 | A kind of measuring device and method of cable diameter |
| CN112833803A (en) * | 2021-01-06 | 2021-05-25 | 王胜军 | Intelligent measuring equipment is used in city building bridge place |
-
1999
- 1999-09-30 CN CN 99229536 patent/CN2393076Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691987B (en) * | 2009-10-12 | 2011-10-05 | 国网电力科学研究院 | Inductive plumb coordinator |
| CN108303017A (en) * | 2018-04-13 | 2018-07-20 | 昆明理工大学 | A kind of measuring device and method of cable diameter |
| CN112833803A (en) * | 2021-01-06 | 2021-05-25 | 王胜军 | Intelligent measuring equipment is used in city building bridge place |
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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 |