CN113701786B - Capacitive static level calibration device and calibration method - Google Patents
Capacitive static level calibration device and calibration method Download PDFInfo
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- CN113701786B CN113701786B CN202110932747.0A CN202110932747A CN113701786B CN 113701786 B CN113701786 B CN 113701786B CN 202110932747 A CN202110932747 A CN 202110932747A CN 113701786 B CN113701786 B CN 113701786B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
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- Level Indicators Using A Float (AREA)
Abstract
The invention belongs to the field of measuring instruments, and particularly relates to a capacitance type static level calibration device and a calibration method, comprising a bracket and a sensor mounting part, wherein the sensor mounting part comprises a capacitance mounting part and a shielding pipe fixing ring, the bracket comprises a bracket body, a capacitance fixing plate and a float fixing top plate which are arranged on the bracket body, sliding holes are formed in the capacitance fixing plate and the float fixing top plate, the capacitance mounting part comprises a capacitance shell and a shell fixing ring, the outer diameter of the shell fixing ring is larger than the diameter of the sliding hole, a calibration clamping block is detachably arranged between the shell fixing ring and the capacitance fixing plate, and the shielding pipe fixing ring is arranged above the float fixing top plate and used for clamping a shielding pipe of a static level.
Description
Technical Field
The invention belongs to the field of measuring instruments, and particularly relates to a capacitance type static level calibration device and a calibration method.
Background
A hydrostatic level is a high-precision instrument device for measuring the settlement deformation of a foundation or foundation, and can measure the relative settlement of multiple points. The capacitance type static level has the advantages of good dynamic characteristics, high resolution, simple structure and the like, is very suitable for high-precision non-contact dynamic measurement, and is widely used for measuring the differential settlement of various measuring points of large-scale buildings such as hydropower plants, dams, high-rise buildings, nuclear power plants, hydraulic junction engineering rock masses and the like. In the use, influenced by factors such as installation, humiture, etc., there is certain difference in the hydrostatic level survey value and theoretical value after using for a period of time, consequently need to carry out calibration to the hydrostatic level regularly.
The existing capacitive static level is generally calibrated on site integrally, and for single static level calibration, calibration needs to be carried out in a laboratory environment, and the capacitive static level has the advantages of complex flow, long period and high cost, and influences the liquid level change of the whole static level system and the continuity of monitoring data of single measuring points.
Disclosure of Invention
The invention aims to solve the technical problem of providing a capacitive static level calibration device and a calibration method which are convenient to install and quick to calibrate.
The sensor comprises a bracket and a sensor mounting part, wherein the sensor mounting part comprises a capacitor mounting part and a shielding pipe fixing ring, the bracket comprises a bracket body, a capacitor fixing plate and a float fixing top plate which are arranged on the bracket body, sliding holes are formed in the capacitor fixing plate and the float fixing top plate, the capacitor mounting part comprises a capacitor shell which is arranged in the sliding holes in the capacitor fixing plate in a sliding manner and a shell fixing ring which is arranged on the capacitor shell and is positioned above the capacitor fixing plate, the outer diameter of the shell fixing ring is larger than the diameter of the sliding holes, a calibration clamping block is detachably arranged between the shell fixing ring and the capacitor fixing plate, the shielding pipe fixing ring is arranged above the float fixing top plate and used for clamping a shielding pipe of a static level, and the outer diameter of the shielding pipe fixing ring is larger than the diameter of the sliding holes.
Furthermore, the calibration clamping block is of a U-shaped structure, and the size of the U-shaped opening is larger than the diameter of the capacitor shell.
Furthermore, the calibration clamping blocks are provided with a plurality of calibration clamping blocks, and the plurality of calibration clamping blocks are overlapped.
Further, the heights of the capacitor fixing plate and the float fixing top plate on the frame body are adjustable.
Still further, the support body is including base, stand and the horizontal pole that connects gradually, and the stand symmetry is provided with two, the horizontal pole is connected with two stand tops.
Still further, the support body still includes the solid fixed ring of bowl body and the solid fixed ring on the bowl body that is used for fixed capacitive static level to mark the appearance bowl body, solid fixed ring is connected and the structure is unanimous with the solid fixed ring on the bowl body under the bowl body, solid fixed ring under the bowl body includes two semicircle ring two, and two semicircle ring both ends all extend and are provided with engaging lug two, engaging lug two passes through screw rod interconnect.
The invention also provides a capacitive static level calibration method, which comprises a capacitive static level calibration device and a capacitive static level calibration instrument, wherein the capacitive static level calibration instrument comprises a pot body, a capacitor, a shielding pipe and a floating body, wherein the capacitor, the shielding pipe and the floating body are sequentially arranged, the floating body is arranged in the pot body, the shielding pipe is arranged on a floating fixed top plate in a sliding manner, and the capacitive static level calibration method comprises the following steps:
s1, fixing a shielding pipe fixing ring on a shielding pipe;
s2, fixedly arranging the capacitor in the capacitor shell;
and S3, connecting the capacitor with a monitoring system through a cable, and adjusting the position of the shielding pipe fixing ring on the shielding pipe and additionally installing calibration clamping blocks with different numbers or thicknesses between the shell fixing ring and the capacitor fixing plate until the calibration work is completed.
The invention has the beneficial effects that the positioning difficulty of the capacitor is simplified by matching the positioning relation between the shell fixing ring and the capacitor fixing plate and the calibration clamping blocks, the stability after adjustment is ensured, the positioning difficulty of the floating body is simplified by matching the positioning relation between the floating body fixing top plate and the shielding pipe fixing ring, the gap of the field calibration device of the single capacitor type static level calibration device is made up, the calibration flow of the static level calibration instrument is simplified, the time required by calibration is reduced, the liquid level change of the whole static level system and the continuity of monitoring data of a single measuring point are not influenced, in addition, the whole structure is simple, the installation is convenient, the carrying is convenient, the invention can be widely applied to the field calibration of the capacitor type static level and has higher practicability and popularization.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural diagram of a capacitor fixing plate in the present invention.
Fig. 3 is a schematic view of the structure of the cross bar in the present invention.
FIG. 4 is a schematic view of the structure of the lower fixture ring of the bowl according to the present invention.
Fig. 5 is a schematic structural view of a housing fixing ring in the present invention.
In the figure, 1-sensor mounting; 11-a capacitor mounting portion; 111-a capacitor housing; 112-a housing securing ring; 1121-semicircle ring one; 1122-first connector lug; 12-a shield tube fixing ring; 2-a bracket; 21-a base; 22-stand columns; 23-cross bar; 231-rod body; 232-semicircle blocks; 233-semi-circular mating blocks; 24-a lower bowl fixing ring; 241-semicircle ring two; 242-connecting the second ear; 243-column connecting ring one; 25-a fixed ring on the bowl body; 26-a capacitance fixing plate; 261-semicircular plate; 262-semicircle holes; 263-connecting the third ear; 264-a second upright post connecting ring; 3-calibrating the clamping blocks; 4-a screw; 5-capacitance; 51-cable; 6-shielding the tube; 7-floating body; 8-a guide post; 9-a bowl body; 91-float fixed top plate; 92-side plates; 93-a bottom plate; 94-guiding sleeve.
Detailed Description
As shown in figures 1-5, the invention comprises a bracket 2 and a sensor mounting part 1, the sensor mounting part 1 comprises a capacitor mounting part 11 and a shielding pipe fixing ring 12, the bracket 2 comprises a bracket body, a capacitor fixing plate 26 arranged on the bracket body and a float fixing top plate 91, in the embodiment, the float fixing top plate 91 is the top plate of the bowl body 9, in other embodiments, the float fixing top plate 91 can independently exist with the top plate of the bowl body 9, the capacitor fixing plate 26 and the float fixing top plate 91 are both provided with sliding holes, in particular, as shown in figure 2, the capacitor fixing plate 26 comprises two semicircular plates 261, one side opposite to the two semicircular plates 261 is provided with a semicircular hole 262, the two semicircular plates 262 are surrounded to form a sliding hole, the outer sides of the two semicircular plates 261 are also provided with connecting lugs 263, the two connecting lugs 263 are mutually screwed to form a fixing support plate, in addition, the end parts of the two connecting lugs 263 are provided with stand column connecting rings 264 for connecting with stand columns 22 of the bracket body, and facilitating the adjustment of the capacitor fixing plate 26 on the stand column 22, the capacitor fixing plate 26 is conveniently arranged on the stand column 22, the capacitor fixing plate 26 comprises two semicircular plates 112, the diameter of the capacitor fixing ring 112 is conveniently arranged on the capacitor fixing ring 112, the capacitor fixing ring 112 is arranged on the capacitor fixing shell 112, the capacitor fixing shell 112 is conveniently connected with the capacitor fixing shell 112, the capacitor fixing shell 112 by the diameter of the capacitor fixing ring 112 is conveniently arranged on the outer shell 112, the capacitor fixing shell 112 is conveniently arranged on the diameter of the shell and fixed shell 112, and the shell is conveniently fixed by the diameter is fixed by the diameter and fixed shell and fixed by the diameter of the shell and fixed by the shell. The position of each other is convenient for adjust, can dismantle between shell solid fixed ring 112 and the electric capacity fixed plate 26 and be provided with demarcation clamp splice 3, in the installation, electric capacity shell 111 makes shell solid fixed ring 112 set up on electric capacity fixed plate 26 through its gravity, through add between shell solid fixed ring 112 and electric capacity fixed plate 26 and establish demarcation clamp splice 3 or the polylith demarcation clamp splice 3 of different thickness, adjusts the position of electric capacity 114, until reaching the demarcation effect, very big reduction the degree of difficulty of demarcation, shield pipe solid fixed ring 12 sets up in float fixed roof 91 top for the shielding pipe 6 of centre gripping hydrostatic level, and shield pipe solid fixed ring 12 external diameter is greater than the sliding hole diameter, and wherein, shield pipe solid fixed ring 12 is preferably elasticity clamp structure, is convenient for with the fixed cooperation of shielding pipe 6, plays body 7 position adjustment convenient and fast.
The invention simplifies the position adjustment difficulty of the capacitor 114 by matching the setting relation of the shell fixing ring 112 and the capacitor fixing plate 26 with the calibration clamping block 3, ensures the stability after adjustment, simplifies the position adjustment difficulty of the floating body 7 by the setting relation of the floating body fixing top plate 91 and the shielding pipe fixing ring 12, compensates the vacancy of the field calibration device of the single capacitor type static level calibration device, simplifies the calibration flow of the static level calibration instrument, reduces the time required by calibration, does not influence the liquid level change of the whole static level system and the continuity of monitoring data of the single measuring point, has simple integral structure, is convenient to install and carry, can be widely applied to the field calibration of the capacitor type static level, and has higher practicability and popularization.
The calibration clamping block 3 is of a U-shaped structure, the size of a U-shaped opening is larger than that of the capacitor shell 111, the U-shaped structure is convenient for installing and detaching the calibration clamping block 3, and the calibration clamping block is directly inserted into the capacitor shell 111 through the opening.
The calibration clamping blocks 3 are provided with a plurality of, the plurality of calibration clamping blocks 3 are overlapped, in the actual use process, the thickness or the number of different calibration clamping blocks 3 can be selected according to the needs, specifically, the electrical measurement value of a measuring instrument of a monitoring system is used while the calibration clamping blocks 3 are additionally arranged, and the calibration clamping blocks with different thicknesses or numbers are repeatedly additionally arranged until the calibration effect is achieved.
The height of the capacitor fixing plate 26 and the float fixing top plate 91 on the frame body can be adjusted, so that the adjustment difficulty is further simplified, in the embodiment shown in fig. 1, the float fixing top plate 91 is the upper end cover of the bowl body 9, therefore, after the height of the side plate 92 of the bowl body 9 is determined, the position of the float fixing top plate 91 cannot be adjusted, and when the float fixing top plate 91 and the upper end cover of the bowl body 9 independently exist, namely, the float fixing top plate 91 is independently connected with the upright post 22 of the frame body, so that the height adjustment is facilitated.
The frame body comprises a base 21, upright posts 22 and cross bars 23 which are sequentially connected, wherein the upright posts 22 are symmetrically arranged two, the cross bars 23 are connected with the tops of the two upright posts 22, the cross bars 23 comprise rod bodies 231, semicircular blocks 232 are arranged in the society at two ends of the rod bodies 231, the frame body further comprises two semicircular matching blocks 233, and the semicircular matching blocks 233 and the semicircular blocks 232 are fixedly connected through screw rods 4 so as to be assembled and disassembled with the upright posts 22, and the frame body is simple in structure, light in weight and low in cost.
The frame body further comprises a lower fixed ring 24 and an upper fixed ring 25 for fixing the capacitance type static leveling instrument body 9, the lower fixed ring 24 and the upper fixed ring 25 are connected with the frame body and are identical in structure, the lower fixed ring 24 comprises two semicircular rings 241, two connecting lugs 242 are respectively arranged at the ends of the two semicircular rings 241 in an extending mode, the two connecting lugs 242 are connected with each other through a screw 4, and the lower fixed ring 24 and the upper fixed ring 25 are arranged to facilitate fixation of the body 9.
Wherein, the alms bowl body 9 includes curb plate 92, sets up the bottom plate 93 in curb plate 92 bottom, float fixed roof 91 sets up at the curb plate 92 top, still includes the guide sleeve 94 that sets up on bottom plate 93, and the float 7 bottom is provided with the guide post 8 with guide sleeve 94 complex, guarantees the stability of float 7 removal.
The capacitive static leveling calibration method is characterized by comprising a capacitive static leveling calibration device and a capacitive static leveling calibration instrument, wherein the capacitive static leveling calibration instrument comprises a bowl body 9, a capacitor 5, a shielding pipe 6 and a floating body 7 which are sequentially arranged, the floating body 7 is arranged in the bowl body 9, the shielding pipe 6 is arranged on a float fixed top plate 91 in a sliding manner, the float fixed top plate 91 is the top plate of the bowl body 9 in the embodiment, and in other embodiments, the float fixed top plate 91 can exist independently with the top plate of the bowl body 9, and the capacitive static leveling calibration method comprises the following steps:
step S1, fixing a shielding pipe fixing ring 12 on a shielding pipe 6;
step S2, fixedly arranging the capacitor 5 in the capacitor shell 111;
step S3, connecting the capacitor 5 with a monitoring system through a cable 51, and adjusting the position of the shielding pipe fixing ring 12 on the shielding pipe 6, and additionally installing calibration clamping blocks 3 with different numbers or thicknesses between the shell fixing ring 112 and the capacitor fixing plate 26 until the calibration work is completed.
Claims (7)
1. The utility model provides a capacitive static level calibration device, characterized by, includes support (2) and sensor installation department (1), sensor installation department (1) are including electric capacity installation department (11) and shield pipe solid fixed ring (12), support (2) are including support body, electric capacity fixed plate (26) and float fixed roof (91) that set up on the support body, all be provided with the sliding hole on electric capacity fixed plate (26) and the float fixed roof (91), electric capacity installation department (11) are including sliding capacitor shell (111) that set up in the sliding hole on electric capacity fixed plate (26) and set up on capacitor shell (111) and be located shell solid fixed ring (112) of electric capacity fixed plate (26), shell solid fixed ring (112) external diameter is greater than the sliding hole diameter, can dismantle between shell solid fixed ring (112) and electric capacity fixed plate (26) and be provided with mark clamp splice (3), shield pipe solid fixed ring (12) set up in float fixed roof (91) top for the fixed ring (6) of the shielding pipe outside diameter of centre gripping static level.
2. Capacitive static leveling device according to claim 1, characterized in that the leveling clamp (3) has a U-shaped structure, the U-shaped opening being larger in size than the diameter of the capacitive housing (111).
3. Capacitive static leveling device according to claim 1, characterized in that the number of calibration clamping blocks (3) is several, and that several calibration clamping blocks (3) are arranged in a superimposed manner.
4. Capacitive static leveling device according to claim 1, characterized in that the height of the capacitive fixing plate (26) and the float fixing top plate (91) on the frame body is adjustable.
5. The capacitive static level calibration device according to any one of claims 1 to 4, wherein the frame body comprises a base (21), two upright posts (22) and two cross bars (23) which are sequentially connected, the two upright posts (22) are symmetrically arranged, and the cross bars (23) are connected with the tops of the two upright posts (22).
6. The capacitive static level calibration device according to claim 5, wherein the frame body further comprises a lower bowl fixing ring (24) and an upper bowl fixing ring (25) for fixing the capacitive static level calibration device bowl body (9), the lower bowl fixing ring (24) and the upper bowl fixing ring (25) are connected with the frame body and are identical in structure, the lower bowl fixing ring (24) comprises two semicircular rings (241), two connecting lugs (242) are respectively arranged at the end parts of the two semicircular rings (241) in an extending mode, and the two connecting lugs (242) are connected with each other through a screw (4).
7. A capacitive static leveling calibration method, characterized by comprising the capacitive static leveling calibration device and the capacitive static leveling calibration instrument according to any one of claims 1-6, wherein the capacitive static leveling calibration instrument comprises a bowl body (9), a capacitor (5), a shielding pipe (6) and a floating body (7) which are sequentially arranged, the floating body (7) is arranged in the bowl body (9), the shielding pipe (6) is arranged on a float fixing top plate (91) in a sliding manner, and the method comprises the following steps:
s1, fixing a shielding pipe fixing ring (12) on a shielding pipe (6);
s2, fixedly arranging a capacitor (5) in a capacitor shell (111);
and step S3, connecting the capacitor (5) with a monitoring system through a cable (51), and adjusting the position of the shielding pipe fixing ring (12) on the shielding pipe (6), and additionally installing calibration clamping blocks (3) with different numbers or thicknesses between the shell fixing ring (112) and the capacitor fixing plate (26) until the calibration work is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110932747.0A CN113701786B (en) | 2021-08-13 | 2021-08-13 | Capacitive static level calibration device and calibration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110932747.0A CN113701786B (en) | 2021-08-13 | 2021-08-13 | Capacitive static level calibration device and calibration method |
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| Publication Number | Publication Date |
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| CN113701786A CN113701786A (en) | 2021-11-26 |
| CN113701786B true CN113701786B (en) | 2023-08-01 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1714365A1 (en) * | 1989-12-29 | 1992-02-23 | Войсковая Часть 25840 | Hydrostatic level |
| CN205861046U (en) * | 2016-06-29 | 2017-01-04 | 北京木联能工程科技有限公司 | Photoelectric hydrostatic level telemetric coordinator |
| CN107167161A (en) * | 2017-06-01 | 2017-09-15 | 河南理工大学 | A kind of hydrostatic level calibrating installation based on vertical tape measure |
| CN107218952A (en) * | 2017-06-01 | 2017-09-29 | 河南理工大学 | A kind of portable hydrostatic level calibrating installation based on optical grating ruler measurement |
| CN110285836A (en) * | 2019-07-22 | 2019-09-27 | 湖南省计量检测研究院 | Inclination angle type hydrostatic level calibrating installation and calibration method |
-
2021
- 2021-08-13 CN CN202110932747.0A patent/CN113701786B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1714365A1 (en) * | 1989-12-29 | 1992-02-23 | Войсковая Часть 25840 | Hydrostatic level |
| CN205861046U (en) * | 2016-06-29 | 2017-01-04 | 北京木联能工程科技有限公司 | Photoelectric hydrostatic level telemetric coordinator |
| CN107167161A (en) * | 2017-06-01 | 2017-09-15 | 河南理工大学 | A kind of hydrostatic level calibrating installation based on vertical tape measure |
| CN107218952A (en) * | 2017-06-01 | 2017-09-29 | 河南理工大学 | A kind of portable hydrostatic level calibrating installation based on optical grating ruler measurement |
| CN110285836A (en) * | 2019-07-22 | 2019-09-27 | 湖南省计量检测研究院 | Inclination angle type hydrostatic level calibrating installation and calibration method |
Non-Patent Citations (3)
| Title |
|---|
| Continuous-type liquid Level Measurement System using pulsating sensor;K. Praveen 等;2015 International Conference on Industrial Instrumentation and Control (ICIC);第479-453页 * |
| 合肥光源电容式静力水准传感器的标定;何晓业;汪鹏;许少峰;;原子能科学技术;第47卷(第09期);第1468-1451页 * |
| 静力水准仪标定方法的研究;余剑锋;;山西电子技术(第03期);第77-78页 * |
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