CN109764895B - Quick stabilizing system and method for inclination sensor for ground inclination monitoring - Google Patents
Quick stabilizing system and method for inclination sensor for ground inclination monitoring Download PDFInfo
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- CN109764895B CN109764895B CN201910214614.2A CN201910214614A CN109764895B CN 109764895 B CN109764895 B CN 109764895B CN 201910214614 A CN201910214614 A CN 201910214614A CN 109764895 B CN109764895 B CN 109764895B
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Abstract
The application relates to a rapid stabilizing system and a rapid stabilizing method for a tilt sensor for ground tilt monitoring, wherein the rapid stabilizing system comprises an electric one-dimensional tilt table, a tilt sensor, a PC terminal and a controller, the electric one-dimensional tilt table comprises a fixed table, a workbench and a driving device, an arc-shaped track is arranged on the fixed table, and the workbench is connected with the fixed table through the arc-shaped track and can slide back and forth relative to the arc-shaped track under the driving of the driving device. The inclination sensor is arranged on the workbench, the PC terminal is connected with the inclination sensor, the driving device and the PC terminal are both connected with the controller, and the controller drives the driving device to work according to an external trigger instruction of the PC terminal. The application adopts a pre-aging process to rapidly reduce residual stress of the tilt sensor, thereby achieving the purpose of rapid stabilization of the tilt sensor, greatly shortening the period of eliminating residual stress and rapidly improving the stability of the tilt sensor.
Description
Technical Field
The application belongs to the field of stability of a tilt sensor for ground tilt monitoring, and particularly relates to a rapid stabilizing system and a rapid stabilizing method for the tilt sensor for ground tilt monitoring.
Background
In earth inclination monitoring, in order to record well earth inclination solid tide, earth inclination accumulation process and other abundant earth deformation information, a borehole inclinometer is required to be provided with 2x10 -4 High resolution performance in angular seconds. With such high resolution, a very high requirement is also placed on the stability of the inclination sensor in the borehole inclinometer. The sensor will have residual stress in each link from material, to processing, to assembly. For a common observation system, the magnitude of the residual stress is small, the observation is not influenced, and the residual stress is negligible. But for having 2x10 -4 For an angular second resolution borehole inclinometer, these residual stresses can directly affect the stability of the observed data, and if left untreated, the inclination sensor will not be stable for a long period of timePreferably, the observed data has a large number of interference problems such as jump, burr, drift and the like. Currently, inclination sensors of borehole inclinometers rely on a combination of heat treatment and natural aging of the localized material (particularly the suspended elastic components) to relieve residual stresses to improve the stability of the sensor.
However, the above-described treatment method has many disadvantages, although it has a certain effect. On the one hand, the period of eliminating residual stress by natural aging is long, and the elastic components of some instrument hanging mechanisms are required to be naturally placed for months and even can be used for several years, so that the construction requirement of the rapidly-increased earthquake monitoring station network is difficult to meet. On the other hand, after the residual stress is removed from the local component, a new residual stress is generated in the process of assembling the sensor. Longer stabilization period is needed after the borehole inclinometer is installed in the well, and 1-3 months are generally needed for the borehole inclinometer to be put into use.
Because the inclination sensor has various parts and materials, the structure is complex, and no suitable mature technology can be applied to the whole inclination sensor to develop and reduce residual stress, thereby achieving the purpose of quick and stable. In addition, the high precision performance of the tilt sensor is a high requirement for the safety of the rapid stabilization system and method. Therefore, a need exists for a fast stabilization method for a tilt sensor for ground tilt monitoring that is capable of complete machine residual stress relief.
Disclosure of Invention
First, the technical problem to be solved
The application provides a rapid stabilizing system and a rapid stabilizing method for a tilt sensor for ground tilt monitoring, and aims to solve the problems that residual stress eliminating period of the tilt sensor for ground tilt monitoring is too long and rapid increasing earthquake monitoring station network construction requirements cannot be met in the prior art.
(II) technical scheme
In order to achieve the above purpose, the main technical scheme adopted by the application comprises the following steps:
in one aspect, the present application provides a rapid stabilization system for a tilt sensor for ground tilt monitoring, comprising:
the electric one-dimensional tilting table comprises a fixed table, a workbench and a driving device, wherein an arc-shaped rail is arranged on the fixed table, and the workbench is connected with the fixed table through the arc-shaped rail and can slide back and forth relative to the arc-shaped rail under the driving of the driving device;
the inclination sensor is arranged on the workbench, and the measurement inclination direction of the inclination sensor is consistent with the one-dimensional inclination adjustment direction of the electric one-dimensional inclination table;
the PC terminal is connected with the inclination sensor and is used for acquiring and displaying the inclination angle information of the inclination sensor in real time;
and the controller is connected with the driving device and the PC terminal, and drives the driving device to work according to an external trigger instruction of the PC terminal.
According to the application, the device also comprises a manual one-dimensional tilting table; the fixed table is arranged on the manual one-dimensional tilting table, and the one-dimensional tilting adjustment direction of the manual one-dimensional tilting table is perpendicular to the one-dimensional tilting adjustment direction of the electric one-dimensional tilting table.
According to the application, the manual one-dimensional tilting table comprises a manual table, a manual screw and a handle; the fixed table is arranged on the manual table, a threaded through hole which is perpendicular to the upper surface of the manual table is formed in the manual table, and the manual screw rod is in threaded connection with the threaded through hole; one end of the manual screw rod extending out of the upper surface of the manual table is fixedly connected with the handle.
According to the application, the upper surface of the manual table is in a regular triangle shape, the manual screw is arranged at the vertex angle of the regular triangle, and the angle bisector of the vertex angle at the position of the manual screw is perpendicular to the one-dimensional inclination adjusting direction of the electric one-dimensional inclination table.
According to the application, the fixed table comprises a shell with an upward opening, wherein two sides of the upper end of the shell are respectively fixed with an arc-shaped track, and an arc-shaped groove is arranged in the arc-shaped track;
arc-shaped protruding blocks are respectively arranged on two sides of the bottom of the workbench, are inserted into the arc-shaped grooves and can slide back and forth along the arc-shaped tracks.
According to the application, the drive means comprise a stepper motor, a coupling, an electric screw and a slider; the sliding piece is fixed at the bottom of the workbench, is of an arc-shaped structure and is uniformly provided with a plurality of gear teeth on the bottom surface of the arc-shaped structure; the electric screw is rotatably connected with the shell of the fixed table, and is provided with at least partial threads which are meshed with a plurality of gear teeth; one end of the screw rod extending out of the shell of the fixed table is connected with a rotary output shaft of the stepping motor through a coupler, and the stepping motor is fixed on the fixed table and connected with the controller.
According to the application, the tilt sensor comprises a pendulum support, a pendulum suspension mechanism and a middle pendulum, wherein the pendulum support is fixed on the tilt adjusting platform, two symmetrically arranged fixed polar plates are fixed on the pendulum support, one end of the pendulum suspension mechanism is fixedly connected with the middle pendulum, and the other end of the pendulum suspension mechanism is fixedly connected with the pendulum support.
In another aspect, the present application provides a rapid stabilization method based on the rapid stabilization system, where the method includes:
s1: the PC terminal displays the inclination angle information of the inclination sensor and acquires a first external trigger instruction;
s2, the PC terminal sends a first external trigger instruction to the controller, and the driving device works according to the first external trigger instruction so as to level the inclination sensor in the inclination measuring direction;
s3: the PC terminal acquires a second external trigger instruction and sends the second external trigger instruction to the controller, and the driving device works according to the second external trigger instruction so as to enable the inclination sensor to execute a pre-ageing process;
the first external trigger instruction is generated according to the set inclination parameters for leveling according to the inclination angle information, and the second external trigger instruction is generated according to the preset inclination swing parameters of the pre-ageing process.
According to the application, before step S1, it further comprises: s0: the tilt sensor is leveled in the vertical direction in which it measures the tilt direction by means of a manual one-dimensional tilt table.
According to the application, in the execution process of the pre-ageing process in the step S3, the method further comprises judging whether the inclination angle of the inclination sensor is within a preset inclination measuring range;
if yes, executing a pre-ageing process, otherwise, executing an alarm instruction by the controller to stop the driving device, judging whether the inclination sensor is leveled in the inclination measuring direction, and if not, returning to the step S1.
(III) beneficial effects
The beneficial effects of the application are as follows:
the application skillfully utilizes the coordination of the electric one-dimensional tilting table and the controller, after the self processing and assembly of the tilting sensor for ground tilting monitoring are completed, the tilting sensor is subjected to reciprocating tilting swing, and the tilting sensor is pre-aged by adopting a pre-aging process to reduce the residual stress of the tilting sensor, so that the purpose of quickly stabilizing the tilting sensor is achieved, the period of eliminating the residual stress is greatly shortened, the stability of the tilting sensor is quickly improved, the development and construction requirements of a rapidly increased earthquake monitoring table network are met, and the ground tilting monitor can more effectively serve the shockproof disaster reduction industry in China.
Drawings
FIG. 1 is a schematic diagram of a rapid stabilization system provided in the following embodiments;
FIG. 2 is a schematic view of the structure of an electric one-dimensional tilting table according to the following embodiment;
FIG. 3 is observation data for a borehole inclinometer in accordance with the following example for use in an Artush seismic station in Xinjiang;
fig. 4 is a schematic structural view of a tilt sensor according to the following embodiment.
[ reference numerals description ]
1: an electric one-dimensional tilting table; 11: a fixed table; 111: an arc-shaped track; 12: a work table; 13: a stepping motor; 14: a coupling; 15: an electric screw;
2: a tilt sensor; 21: a swing bracket; 211: fixing the polar plate; 22: a pendulum suspension mechanism; 23: middle pendulum;
3: a PC terminal;
4: a controller;
5: a manual one-dimensional tilting table; 51: a manual stage; 52: a manual screw; 53: a handle; 54: a level bubble ruler.
Detailed Description
The application will be better explained by the following detailed description of the embodiments with reference to the drawings.
Referring to fig. 1, the present application provides a rapid stabilization system of a tilt sensor for ground tilt monitoring, comprising an electric one-dimensional tilt table 1, a tilt sensor 2, a PC terminal 3, and a controller 4.
The electric one-dimensional tilting table 1 comprises a fixed table 11, a workbench 12 and a driving device, wherein an arc-shaped rail 111 is arranged on the fixed table 11, and the workbench 12 is connected with the fixed table 11 through the arc-shaped rail 111 and can slide back and forth relative to the arc-shaped rail 111 under the driving of the driving device. The tilt sensor 2 is provided on the table 12, and the measurement tilt direction of the tilt sensor 2 coincides with the one-dimensional tilt adjustment direction of the electric one-dimensional tilt table 1.
The PC terminal 3 is connected to the tilt sensor 2 for acquiring and displaying tilt angle information of the tilt sensor 2 in real time. The driving device and the PC terminal 3 are both connected with the controller 4, and the controller 4 drives the driving device to work according to an external trigger instruction of the PC terminal 3.
Specifically, since the table 12 of the electric one-dimensional tilting table 1 can reciprocally slide along the arc-shaped rail 111, the tilt sensor 2 inevitably generates a corresponding reciprocal tilt swing in the measurement tilt direction thereof when the table 12 reciprocally slides. Since the entire rapid stabilizing system is assembled, it is generally difficult to ensure that the tilt sensor 2 is in a working balance state in the measurement tilt direction, that is, a state in which the tilt amount Δψ of the following swing bracket 21 is 0, a certain tilt angle exists. Therefore, before the whole rapid stabilizing system works, the inclination sensor 2 needs to be adjusted to a working balance state in the measurement inclination direction by the electric one-dimensional inclination table 1, and in general practical application, the inclination angle is adjusted to be within a leveling range, for example, to be-0.05 degrees, so that the inclination sensor 2 swings in a preset inclinometry range, and a necessary condition is provided for the rapid stabilizing work of the inclination sensor 2 in the preset inclinometry range.
When the whole rapid and stable system works, the PC terminal 3 can acquire and display the inclination angle information of the inclination sensor 2 in real time on one hand, so that the inclination angle of the inclination sensor 2 can be known more clearly and intuitively; on the other hand, a first external trigger command, a second external trigger command or an alarm command for stopping the operation of the driving device can be transmitted to the controller 4. The controller 4 can control the driving device to work according to the first external trigger instruction or the second external trigger instruction on the one hand so as to level the inclination sensor 2 in the measurement inclination direction or enable the inclination sensor 2 to develop a pre-ageing process to reduce the residual stress of the inclination sensor 2; on the other hand, the driving device can be controlled to stop working immediately according to the alarm instruction, so that potential safety hazards caused by exceeding the preset inclinometry range of the inclination sensor 2 in the whole process can be prevented.
Therefore, the application skillfully utilizes the electric one-dimensional tilting table 1 to be matched with the controller 4, after the tilting sensor 2 for ground tilting monitoring is processed and assembled, the tilting sensor 2 is subjected to reciprocating tilting swing, and the tilting sensor 2 is pre-aged by adopting a pre-aging process to reduce the residual stress of the tilting sensor 2, thereby achieving the purpose of quick and stable tilting sensor 2, greatly shortening the period of eliminating the residual stress, quickly improving the stability of the tilting sensor 2, meeting the development and construction requirements of a quick-increasing earthquake monitoring table network, and enabling the ground tilting monitor to more efficiently serve the shockproof disaster reduction industry in China.
In addition, the PC terminal 3 is adopted to monitor the inclination angle of the inclination sensor 2 in real time, so that the whole rapid stabilizing process is ensured to be carried out within the range of the preset inclination measuring range of the inclination sensor 2, the safety of the inclination sensor 2 is ensured, and the whole system is simple in structure, convenient to operate and suitable for large-scale production and application.
The inclination sensor 2 for ground inclination monitoring may be the inclination sensor 2 in a borehole inclinometer or the inclination sensor 2 in a cavity inclinometer. The inclination sensor 2 in a borehole inclinometer is exemplified below.
For example, using the inclination sensor 2 of the borehole inclinometer shown in FIG. 4 described below as an example, the pendulum suspension mechanism 22 is typically an elastic member for inclinationHigh resolution of sensor 2 (2 x10 -4 Angular second), the elastic member of the pendulum suspension mechanism 22 has a thickness of only 0.1 mm, the gap between the center pendulum 23 and the fixed polar plate 211 of the pendulum support 21 is small, and the preset inclinometry range of the inclination sensor 2 is only 0.15 degrees, which is only on the order of 0.1 mm. Therefore, the process of eliminating residual stress by the whole machine of the inclination sensor 2 by adopting the pre-aging process must be completed in a system which monitors the inclination angle within the preset inclination measuring range of the inclination sensor 2; otherwise, the rapid stabilizing system cannot achieve the purpose of reducing the residual stress of the sensor, and may directly damage the tilt sensor 2.
Specifically, the inclination sensor 2 of the borehole inclinometer has the characteristics of high accuracy and small inclination measurement amplitude in practical application, as shown in fig. 3, the borehole inclinometer continuously observes data on an argyi seismic table in Xinjiang, can monitor information such as ground inclination solid tide, inclination accumulation, earthquake and the like, and is data obtained by vertically distributing inclination measurement directions of the two inclination sensors 2. In the research, the minute reciprocating tilting swing of the solid tide plays a positive role in the gradual stabilization of the tilting sensor 2 in the early working stage, and the fatigue aging of the suspension elastic component (namely the pendulum suspension mechanism 22) of the tilting sensor 2 is realized through the minute reciprocating tilting swing, so that the residual stress is gradually reduced, the general borehole inclinometer is basically stable after being installed for 1-3 months, and the observation data can be used in the network.
For this reason, based on the above-described studies, it was found that simulating a minute tilting reciprocation of the borehole inclinometer in the downhole operation mode under laboratory conditions can fatigue-pre-age the inclination sensor 2 to achieve a rapid stabilizing effect. In practical application, generally, when the pre-aging process is performed, the period of the reciprocating sliding of the workbench 12 is generally controlled to be 10-280 seconds, so as to realize the pre-aging process and achieve the purpose of eliminating the residual stress of the tilt sensor 2.
In a specific embodiment of the present application, the rapid stabilizing system further includes a manual one-dimensional tilting table 5, the fixing table 11 is disposed on the manual one-dimensional tilting table 5, and a one-dimensional tilting adjustment direction of the manual one-dimensional tilting table 5 is perpendicular to a one-dimensional tilting adjustment direction of the electric one-dimensional tilting table 1.
In this way, the tilt sensor 2 can be adjusted to an equilibrium state in the direction perpendicular to its measuring tilt direction by means of the manual one-dimensional tilt table 5, so as to avoid the impact on the whole fast settling process due to the unbalance of the forces acting on the tilt sensor 2 in this direction. Of course, in practical application, in the vertical direction of the measurement tilt direction, the manual one-dimensional tilt table 5 mainly plays a role of rough adjustment, and only the tilt angle of the tilt sensor 2 needs to be adjusted within 1 degree. In the direction of measuring the inclination, the electric one-dimensional platform plays a role in fine adjustment, and the inclination angle of the inclination sensor 2 needs to be adjusted to be within 0.05 degrees. In addition, a leveling bubble ruler 54 is generally provided on the manual table 51 of the manual one-dimensional tilting table 5, so as to observe and judge the leveling condition of the manual one-dimensional tilting table 5.
Thus, by the cooperative work of the manual one-dimensional tilting table 5 and the electric one-dimensional tilting table 1, the horizontal leveling function of the table 12 can be made so that the stress of the tilt sensor 2 is more balanced.
In a specific implementation process, the manual one-dimensional tilting table 5 includes a manual table 51, a manual screw 52 and a handle 53, the fixed table 11 is disposed on the manual table 51, a threaded through hole perpendicular to the upper surface of the manual table 51 is disposed on the manual table 51, and the manual screw 52 is in threaded connection with the threaded through hole. One end of the manual screw 52 extending out of the upper surface of the manual table 51 is fixedly connected to a handle 53. When the manual one-dimensional tilting table 5 is used, the manual one-dimensional tilting table 5 is directly placed on the stable ground, the other end of the manual screw 52 is rotationally connected with a fixed block to be supported on the ground, the manual screw 52 is driven to rotate by rotating the handle 53, and then the one-dimensional tilting angle of the manual table 51 can be manually adjusted, so that the tilting angle of the tilting sensor 2 is adjusted.
In a possible embodiment, the upper surface of the manual table 51 is a regular triangle, the manual screw 52 is arranged at the vertex angle of the regular triangle, and the angular bisector of the vertex angle where the manual screw 52 is arranged is perpendicular to the 1-dimensional tilt adjustment direction of the electric one-dimensional tilt table. It will be appreciated that the other two corners of the triangle are generally stationary relative to the ground in use, so that adjustment can be achieved by rotating the handle 53 at only one corner, which is simple and convenient; the upper surface of the manual table 51 is designed into a triangle, so that the arrangement of the position relationship between the manual one-dimensional tilting table 5 and the electric one-dimensional tilting table 1 is more convenient, the tilt adjusting directions of the manual one-dimensional tilting table 5 and the electric one-dimensional tilting table 1 are mutually perpendicular, and the tilt adjusting directions are realized by arranging the angle bisector and the electric screw 15 which are described below in mutually perpendicular, so that the stress of the tilt sensor 2 is more balanced.
The one-dimensional tilt adjustment direction of the manual one-dimensional tilt table 5 and the 1-dimensional tilt adjustment direction of the electric one-dimensional tilt table are two directions perpendicular to each other in the same horizontal plane according to actual needs. For example, in practical application, the forward and backward directions may be taken as the one-dimensional tilt adjustment direction of the electric one-dimensional tilt table 1, and the forward and backward directions may be taken as the one-dimensional tilt adjustment direction of the manual one-dimensional tilt table 5, and the measurement tilt direction of the tilt sensor 2 is the forward and backward measurement.
Of course, in practical application, the manual screw 52 and the handle 53 may be disposed at the three vertex angles of the triangle shown in fig. 1, and when in use, the two left and right vertex angles shown in fig. 1 are in a fixed state, and only the handle 53 at the innermost vertex angle in fig. 1 may be adjusted. Of course, other structures may be adopted for adjusting the inclination angle of the manual one-dimensional inclination table 5, and this embodiment is merely illustrative and not limiting.
Further, the fixing table 11 includes a housing having an upward opening, two sides of the upper end of the housing are respectively fixed with an arc track 111, and an arc groove is disposed in the arc track 111. Arc-shaped protruding blocks are respectively arranged on two sides of the bottom of the workbench 12, are inserted into the arc-shaped grooves and can slide back and forth along the arc-shaped tracks 111.
In practical application, the driving device includes a stepper motor 13, a coupling 14, an electric screw 15, and a sliding member fixed at the bottom of the workbench 12, where the sliding member has an arc structure and a plurality of gear teeth are uniformly arranged on the bottom surface of the arc structure. The electric screw 15 is rotatably connected with the housing of the fixed table 11, and at least part of threads are arranged on the electric screw 15 and are meshed with a plurality of gear teeth. One end of the screw rod extending out of the shell of the fixed table 11 is connected with a rotating output shaft of the stepping motor 13 through a coupler 14, and the stepping motor 13 is fixed on the fixed table 11 and connected with the controller 4.
Wherein, because the slider is arc structure, only its bottommost teeth of a cogwheel can mesh with the screw thread on electric screw rod 15 in the actual operation, and the teeth of a cogwheel of other parts only can mesh with the screw thread on electric screw rod 15 when moving bottommost. Therefore, in the implementation process, only a small thread is generally machined at the position where the electric screw 15 is meshed with the bottom of the sliding piece, so that the structure is simplified. Bearings are generally sleeved at two ends of the electric screw 15, two ends of the electric screw 15 are rotatably connected with the shell of the fixed table 11 through the bearings, and one end of the electric screw 15 is rotatably connected with the shell, extends out of the shell and is connected with a rotating output shaft of the stepping motor 13 through a coupler 14.
Thus, when the stepping motor 13 receives the first control signal or the second control signal, the rotation output shaft of the stepping motor 13 starts to rotate to drive the electric screw 15 to rotate, the threads on the electric screw 15 are meshed with the plurality of gear teeth on the sliding piece to rotate, the rotation of the plurality of gear teeth drives the arc protruding blocks on the workbench 12 to slide along the arc grooves in the arc track 111, and then the whole workbench 12 slides reciprocally along the arc track 111, so that positive/negative inclination of the workbench 12 is realized, and then the inclination angle of the inclination sensor 2 in the inclination measuring direction is adjusted or the inclination sensor 2 is driven to do reciprocal inclination swing. Thus, the positive/negative tilting movement of the table 12 can be precisely controlled by the first external trigger command or the second external trigger command inputted at the PC side, which is simple and convenient.
Of course, in a specific implementation process, the electric one-dimensional tilting table 1 may be implemented in other structural manners, so as to conveniently and rapidly adjust the tilting angle of the tilting sensor 2 or enable the tilting sensor 2 to perform reciprocating tilting swing to perform the pre-aging process. The present embodiment is merely illustrative, and the structure of the electric one-dimensional tilting table 1 is not limited thereto.
Referring to fig. 4, the tilt sensor 2 is a vertical pendulum sensor, and the tilt sensor 2 includes a pendulum support 21, a pendulum suspension mechanism 22 and a middle pendulum 23, wherein the pendulum support 21 is fixed on the workbench 12, two symmetrically arranged fixed polar plates 211 are fixed on the pendulum support 21, one end of the pendulum suspension mechanism 22 is fixedly connected with the middle pendulum 23, and the other end is fixedly connected with the pendulum support 21.
The geodetic tilt principle of the tilt sensor 2 is as follows: the center pendulum 23 is kept in a vertical direction all the time under the action of the earth's gravity. When the ground is inclined by an angle delta psi in a certain direction, the swing support 21 generates a tilting amount delta psi, the middle swing 23 is under the action of gravity and still keeps the vertical direction, the fixed polar plates 211 on the middle swing 23 and the swing support 21 generate relative displacement, the ground tilting delta psi enables the fixed polar plates 211 on the middle swing 23 and the swing support 21 to generate relative displacement delta, and the differential capacitance formed by the fixed polar plates 211 on the swing support 21 and the middle swing 23 is measured, so that the relative displacement delta can be measured, and the purpose of measuring the ground tilting is realized.
In another aspect, the present application provides a rapid stabilization method based on the rapid stabilization system, including the following steps:
s1: the PC terminal 3 displays the inclination angle information of the inclination sensor 2 and acquires a first external trigger instruction. Here, the first external trigger instruction and the second external trigger instruction described below are both directly input by the operator on the PC terminal 3, and the first external trigger instruction is generated from the tilt parameters for leveling set by the tilt angle information. For example, when the stepping motor 13 is used for driving, the tilt parameters used for leveling herein refer to the thin fraction and the number of forward/reverse steps of the stepping motor 13.
S2: the PC terminal 3 sends a first external trigger command to the controller 4, and the driving device operates according to the first external trigger command to level the tilt sensor 2 in the measurement tilt direction.
Specifically, in practical application, it is difficult to adjust to absolute zero degree during leveling, and the tilt angle is generally adjusted to be within a leveling range, that is, the leveling range in this embodiment means that the tilt angle is between-0.05 and 0.05 degrees. After receiving the first external trigger command sent by the PC terminal 3, the controller 4 can generate a first control signal according to the received first external trigger command, and then send the first control signal to the driving device, and the driving device drives the workbench 12 to slide relative to the arc-shaped track 111 after receiving the first control signal, so as to drive the tilt sensor 2 to perform tilt swing, so that the tilt sensor 2 is leveled in the measurement tilt direction.
S3: the PC terminal 3 acquires a second external trigger instruction and sends the second external trigger instruction to the controller 4, and the driving device works according to the second external trigger instruction so as to enable the inclination sensor 2 to execute a pre-ageing process;
wherein the second external trigger command is generated according to preset tilting swing parameters of the pre-ageing process, wherein the tilting swing parameters generally comprise the tilting amplitude of the reciprocating tilting swing of the tilting sensor 2, the period of the reciprocating motion and the duration of the reciprocating motion. In practical application, according to the structural characteristics of the rapid stabilizing system and the inclination sensor 2, and in combination with practical application experience of the borehole inclinometer, the pre-aging process parameters generally select an inclination amplitude of 0.1 degree, a period of 10 seconds and a time period of 2 hours. Of course, the specific pre-ageing process parameters are chosen according to the actual needs, and the present embodiment is merely illustrative and not limited thereto.
Specifically, after receiving the second external trigger command sent by the PC terminal 3, the controller 4 can generate a second control signal according to the received second trigger command, and then send the second control signal to the driving device, and after receiving the second control signal, the driving device drives the workbench 12 to slide reciprocally relative to the arc-shaped track 111, so as to drive the tilt sensor 2 to perform reciprocal tilt swing, so that the tilt sensor 2 performs a pre-aging process, and residual stress of the tilt sensor is reduced.
Therefore, the rapid stabilization method of the application adopts the pre-aging technology to pre-age the tilt sensor 2 by making the tilt sensor 2 do reciprocating tilt swing, so as to reduce the residual stress of the tilt sensor 2, achieve the purpose of rapid stabilization of the tilt sensor 2, greatly shorten the period of eliminating the residual stress and rapidly improve the stability of the tilt sensor 2.
Further, in order to make the tilt sensor 2 also be force-balanced in the direction perpendicular to the tilt adjustment direction, so as to ensure that the center pendulum 23 and the pendulum suspension mechanism 22 of the tilt sensor 2 are force-balanced, so as to avoid affecting the whole rapid stabilization process, the method further comprises, before step S1:
s0: the tilt sensor 2 is leveled in the vertical direction to its measured tilt direction by means of a manual one-dimensional tilt table 5.
It should be noted that, in practical application, the leveling is considered as leveling only by adjusting the inclination angle within another leveling range, and in this embodiment, the leveling range is-1 to 1 degree.
Further, in order to ensure the safety of the inclination sensor 2 in the rapid stabilizing process, in the executing process of the pre-aging process in step S3, it further includes judging whether the inclination angle of the inclination sensor 2 is within the preset inclinometry range;
if yes, executing the pre-aging process, otherwise, executing an alarm instruction by the controller 4 to stop the driving device and judge whether the inclination sensor 2 is leveled in the measurement inclination direction, and if not, returning to the step S1.
Specifically, the controller 4 monitors and determines whether the inclination angle of the inclination sensor 2 is within the preset inclinometry range, and if so, the whole pre-aging process is continuously performed until the duration of the whole pre-aging process is over. If the inclination measurement range is not within the preset inclination measurement range, the controller 4 executes an alarm instruction to drive the workbench 12 to stop moving immediately, so as to prevent the whole process from exceeding the inclination measurement range of the inclination sensor 2 to cause some potential safety hazards.
When the movement of the tilt sensor 2 is stopped after the movement of the table 12 is stopped, the controller 4 monitors and judges whether the tilt sensor 2 is leveled in the measurement tilt direction, that is, whether the tilt angle is within a preset leveling range, and if so, performs an inspection work, which may be caused by a problem in mounting or the component itself, and at this time, an operator is required to inspect and analyze the specific cause to solve the problem. If the leveling range is not within the leveling range, returning to the step S1, and performing re-leveling work.
The above description is only of the preferred embodiments of the present application and is not intended to limit the application in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to the equivalent embodiments. However, any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present application still fall within the protection scope of the technical solution of the present application.
Claims (10)
1. A rapid stabilization system for a tilt sensor for ground tilt monitoring, comprising:
the electric one-dimensional tilting table (1) comprises a fixed table (11), a workbench (12) and a driving device, wherein an arc-shaped rail (111) is arranged on the fixed table (11), and the workbench (12) is connected with the fixed table (11) through the arc-shaped rail (111) and can slide back and forth relative to the arc-shaped rail (111) under the driving of the driving device;
a tilt sensor (2), wherein the tilt sensor (2) is arranged on the workbench (12), and the measurement tilt direction of the tilt sensor (2) is consistent with the one-dimensional tilt adjustment direction of the electric one-dimensional tilt table (1); the driving device can drive the whole inclination sensor (2) to perform reciprocating inclination swinging so as to reduce residual stress of the inclination sensor (2);
the PC terminal (3) is connected with the inclination sensor (2) and is used for acquiring and displaying the inclination angle information of the inclination sensor (2) in real time;
and the controller (4), the said drive unit and said PC terminal (3) are connected with said controller (4), the said controller (4) is according to the external triggering command drive the said drive unit to work of the said PC terminal (3).
2. A rapid stabilization system according to claim 1, further comprising a manual one-dimensional tilting table (5);
the fixed table (11) is arranged on the manual one-dimensional tilting table (5), and the one-dimensional tilting adjustment direction of the manual one-dimensional tilting table (5) is perpendicular to the one-dimensional tilting adjustment direction of the electric one-dimensional tilting table (1).
3. The rapid stabilization system according to claim 2, characterized in that the manual one-dimensional tilting table (5) comprises a manual table (51), a manual screw (52) and a handle (53);
the fixed table (11) is arranged on the manual table (51), a threaded through hole which is perpendicular to the upper surface of the manual table (51) is formed in the manual table, and the manual screw (52) is in threaded connection with the threaded through hole;
one end of the manual screw rod (52) extending out of the upper surface of the manual table (51) is fixedly connected with the handle (53).
4. A rapid stabilization system according to claim 3, characterized in that,
the upper surface of the manual table (51) is in a regular triangle shape, the manual screw (52) is arranged at the vertex angle of the regular triangle, and the angle bisector of the vertex angle where the manual screw (52) is arranged is perpendicular to the one-dimensional inclination adjusting direction of the electric one-dimensional inclination table (1).
5. The rapid stabilization system of claim 1, wherein,
the fixing table (11) comprises a shell with an upward opening, the two sides of the upper end of the shell are respectively fixed with the arc-shaped tracks (111), and arc-shaped grooves are formed in the arc-shaped tracks (111);
arc-shaped protruding blocks are respectively arranged on two sides of the bottom of the workbench (12), are inserted into the arc-shaped grooves and can slide back and forth along the arc-shaped tracks (111).
6. The rapid stabilization system according to claim 5, characterized in that the drive means comprise a stepper motor (13), a coupling (14), an electric screw (15) and a slider;
the sliding piece is fixed at the bottom of the workbench (12), is of an arc-shaped structure and is uniformly provided with a plurality of gear teeth on the bottom surface of the arc-shaped structure;
the electric screw rod (15) is rotatably connected with the shell of the fixed table (11), at least partial threads are arranged on the electric screw rod (15), and the threads are meshed with a plurality of gear teeth;
one end of the screw rod extending out of the shell of the fixed table (11) is connected with a rotating output shaft of the stepping motor (13) through the coupler (14), and the stepping motor (13) is fixed on the fixed table (11) and connected with the controller (4).
7. The rapid stabilization system of claim 1, wherein,
the tilt sensor (2) comprises a swing support (21), a swing hanging mechanism (22) and a middle swing (23), wherein the swing support (21) is fixed on the tilt adjusting platform, two symmetrically arranged fixed polar plates (211) are fixed on the swing support (21), one end of the swing hanging mechanism (22) is fixedly connected with the middle swing (23), and the other end of the swing hanging mechanism is fixedly connected with the swing support (21).
8. A rapid stabilization method based on a rapid stabilization system according to any one of claims 1-7, characterized in that the method comprises:
s1: the PC terminal (3) displays the inclination angle information of the inclination sensor (2) and acquires a first external trigger instruction;
s2, the PC terminal (3) sends a first external trigger instruction to the controller (4), and the driving device works according to the first external trigger instruction so as to level the inclination sensor (2) in the inclination measuring direction;
s3: the PC terminal (3) acquires a second external trigger instruction and sends the second external trigger instruction to the controller (4), and the driving device works according to the second external trigger instruction so as to enable the inclination sensor (2) to execute a pre-ageing process;
the first external trigger instruction is generated according to the inclination parameters for leveling, which are set according to the inclination angle information, and the second external trigger instruction is generated according to the preset inclination swing parameters of the pre-ageing process.
9. The rapid stabilization method of claim 8, further comprising, prior to step S1:
s0: the tilt sensor (2) is leveled in the vertical direction to its measured tilt direction by means of a manual one-dimensional tilt table (5).
10. A rapid stabilization method according to claim 8 or 9, characterized in that,
in the execution process of the pre-ageing process in the step S3, judging whether the inclination angle of the inclination sensor (2) is within a preset inclination measuring range or not;
if yes, executing the pre-ageing process, otherwise, executing an alarm instruction by the controller (4) to stop the driving device and judge whether the inclination sensor (2) is leveled in the inclination measuring direction, and if not, returning to the step S1.
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| CN201910214614.2A CN109764895B (en) | 2019-03-20 | 2019-03-20 | Quick stabilizing system and method for inclination sensor for ground inclination monitoring |
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| CN201910214614.2A CN109764895B (en) | 2019-03-20 | 2019-03-20 | Quick stabilizing system and method for inclination sensor for ground inclination monitoring |
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| CN110514229A (en) * | 2019-09-25 | 2019-11-29 | 哈工大机器人（合肥）国际创新研究院 | A kind of level device and leveling method measuring instrument of surveying and mapping |
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