CN200943210Y - Big dam sedimentation monitor - Google Patents
Big dam sedimentation monitor Download PDFInfo
- Publication number
- CN200943210Y CN200943210Y CN 200620074142 CN200620074142U CN200943210Y CN 200943210 Y CN200943210 Y CN 200943210Y CN 200620074142 CN200620074142 CN 200620074142 CN 200620074142 U CN200620074142 U CN 200620074142U CN 200943210 Y CN200943210 Y CN 200943210Y
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- China
- Prior art keywords
- probe
- sedimentation
- ring
- settlement
- sensor device
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- Expired - Lifetime
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Abstract
The utility model provides a dam settlement monitor that comprises two parts, a sensor device and a settlement ring that is buried on site and encases a settlement tube. The sensor device consists of a wire spool with a steel measuring tape, a probe fixed at the end of the steel measuring tape and a buzzer. The probe is a metal inductor type and the settlement ring is a stainless steel type. The monitor replaces the traditional magnetic settlement ring with a stainless steel one, and thus overcomes the disadvantage that the magnetism of the magnetic settlement ring will gradually decline against time. The probe adopts a metal inductor type with an adjusted circuit to provide a high probe sensitivity, a stable measuring precision, and a reliable measuring result.
Description
Technical field
The utility model relates to a kind of monitor, particularly a kind of dam settlement monitor that reservoir dam and building foundation is carried out settlement monitoring.
Background technology
At present, a kind of monitor that is used to measure earth and rockfill dam or building foundation sedimentation is arranged, form and comprise movably sensor device and on-the-spot magnetic sedimentation ring two parts of burying underground that are enclosed within the plastics sedimentation pipe outside, wherein sensor device is by the wire spool of band invar tape, be fixed on the steel spring pipe probe of invar tape end, buzzer is formed, magnetic sedimentation ring produces vertical displacement as soil layer sedimentation measuring point with the aspect sedimentation, during measurement probe is put into sedimentation pipe, when popping one's head near magnetic sedimentation ring, steel spring pipe in the probe is subjected to the induction and the adhesive in outside sedimentation ring magnetic field, thereby connect the power supply of buzzer and it is sounded a buzzer, read the reading of the corresponding invar tape of the sedimentation mouth of pipe this moment, promptly records the relative vertical displacement of sedimentation ring apart from the mouth of pipe.
The shortcoming of this settlement monitoring device is: As time goes on and gradually the magnetic field intensity of magnetic sedimentation ring can fail, and has reduced the position sensing sensitivity and the certainty of measurement of sensor probe, thereby influences the confidence level of measurement result.
Summary of the invention
Technical problem to be solved in the utility model is, overcomes the shortcoming of prior art, and a kind of detectivity height, dam settlement monitor that certainty of measurement is stable are provided.
The technical scheme that its technical problem that solves the utility model adopts is as follows: a kind of dam settlement monitor, form and comprise sensor device and on-the-spot sedimentation ring two parts of burying underground that are enclosed within the sedimentation pipe outside, wherein sensor device is made up of wire spool, the probe that is fixed on the invar tape end, the buzzer of band invar tape, it is characterized in that described probe is the metal sensor probe, described sedimentation ring is a stainless steel sedimentation ring.
The utility model can also be realized by following further technical solution:
(1), described metal sensor probe comprises front end circuit and induction coil, front end circuit is formed by chip and with the sub electric capacity that is electrically connected of this chip output, induction coil is in parallel with this electric capacity;
(2), described induction coil is a planar coil.
The beneficial effects of the utility model are as follows: replaced traditional magnetic sedimentation ring with stainless steel sedimentation ring, the magnetic that has overcome magnetic sedimentation ring is passed and the shortcoming of decline gradually in time; Probe adopts the metal sensor probe, and its circuit has been done corresponding adjustment, makes dam settlement monitor detectivity height, and certainty of measurement is stable, and measurement result is with a high credibility.
Description of drawings
Fig. 1 is the utility model dam settlement monitor structural representation.
Fig. 2 is the utility model dam settlement monitor metal sensor probe circuit schematic diagram.
Among Fig. 1 shown in the label: 1-wire spool, 2-invar tape, 3-sedimentation pipe, 4-probe, 5-sedimentation ring; Among Fig. 2 shown in the label: IC-front end circuit chip, C-electric capacity, L-induction coil.
The specific embodiment
With reference to the accompanying drawings and in conjunction with the embodiments the utility model is described in further detail.But the utility model is not limited to given example.
As shown in Figure 1, the composition of the utility model dam settlement monitor comprises sensor device and on-the-spot sedimentation ring 5 two parts of burying underground that are enclosed within sedimentation pipe 3 outsides, wherein sensor device is made up of wire spool 1, the probe 4 that is fixed on the invar tape end, the buzzer (not drawing among the figure) of band invar tape 2, described probe 4 is the metal sensor probe, and described sedimentation ring 5 is a stainless steel sedimentation ring.
As shown in Figure 2, the metal sensor probe comprises front end circuit and induction coil L, and front end circuit reaches the capacitor C that is electrically connected with this chip output 12,13 by chip IC to be formed, and induction coil L is in parallel with this capacitor C.
In order to improve the sensitivity of metal sensor probe, induction coil L is designed to planar coil.
The high frequency electric that front end circuit produces enters in the planar coil, make it produce the electromagnetic field of high frequency, when planar coil when the sedimentation ring, the sedimentation ring produces current vortex under the effect of high frequency magnetic field, thereby changed the planar coil impedance, vibration has been weakened, until failure of oscillation, this moment, chip was connected buzzer circuit, made the buzzer sounding.
When using this device, need metal sensor probe 4 is slowly put into from the mouth of pipe upper end of plastics sedimentation pipe 3,, determine the position of sedimentation ring when hearing the buzzer sounding in a flash, and read scale on the sedimentation pipe mouth of pipe place invar tape, this reading promptly is the distance between the sedimentation ring and the sedimentation pipe mouth of pipe.
Model, the parameter of the utility model main circuit device are as follows:
Front end circuit chip IC TCA305,
Capacitor C 103pF,
Induction coil L 5mH.
Claims (3)
1, dam settlement monitor, form and comprise sensor device and on-the-spot sedimentation ring two parts of burying underground that are enclosed within the sedimentation pipe outside, wherein sensor device is made up of wire spool, the probe that is fixed on the invar tape end, the buzzer of band invar tape, it is characterized in that described probe is the metal sensor probe, described sedimentation ring is a stainless steel sedimentation ring.
2, dam settlement monitor according to claim 1 is characterized in that described metal sensor probe comprises front end circuit and induction coil, and front end circuit is formed by chip and with the sub electric capacity that is electrically connected of this chip output, and induction coil is in parallel with this electric capacity.
3, dam settlement monitor according to claim 2 is characterized in that described induction coil is a planar coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620074142 CN200943210Y (en) | 2006-06-19 | 2006-06-19 | Big dam sedimentation monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620074142 CN200943210Y (en) | 2006-06-19 | 2006-06-19 | Big dam sedimentation monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200943210Y true CN200943210Y (en) | 2007-09-05 |
Family
ID=38717844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620074142 Expired - Lifetime CN200943210Y (en) | 2006-06-19 | 2006-06-19 | Big dam sedimentation monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200943210Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373699A (en) * | 2010-08-09 | 2012-03-14 | 中交上海航道勘察设计研究院有限公司 | Layered settlement magnetic ring positioning method |
| CN103174123A (en) * | 2013-03-25 | 2013-06-26 | 长沙理工大学 | Soft foundation settlement observation method based on reverse excavation settlement plates |
-
2006
- 2006-06-19 CN CN 200620074142 patent/CN200943210Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373699A (en) * | 2010-08-09 | 2012-03-14 | 中交上海航道勘察设计研究院有限公司 | Layered settlement magnetic ring positioning method |
| CN102373699B (en) * | 2010-08-09 | 2013-11-13 | 中交上海航道勘察设计研究院有限公司 | Layered settlement magnetic ring positioning method |
| CN103174123A (en) * | 2013-03-25 | 2013-06-26 | 长沙理工大学 | Soft foundation settlement observation method based on reverse excavation settlement plates |
| CN103174123B (en) * | 2013-03-25 | 2015-06-24 | 长沙理工大学 | Soft foundation settlement observation method based on reverse excavation settlement plates |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070905 |
|
| EXPY | Termination of patent right or utility model |