CN210833521U

CN210833521U - Fiber grating inclinometer

Info

Publication number: CN210833521U
Application number: CN201922214911.5U
Authority: CN
Inventors: 孙斌
Original assignee: Shanghai Ganyi Photoelectric Technology Co ltd
Current assignee: Shanghai Ganyi Photoelectric Technology Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-06-23
Anticipated expiration: 2029-12-12

Abstract

The utility model discloses a fiber grating inclinometer, the on-line screen storage device comprises a base, the top outer wall of base is equipped with the detection storehouse, and the one end inner wall that detects the storehouse is equipped with the fiber connector, detect the storehouse and pass through fiber connector fixedly connected with optic fibre, and the other end of optic fibre is connected with signal connector, the top outer wall of base is equipped with the inclination instrument, one side that the tip of base is close to the inclination instrument is equipped with the annunciator, the top inner wall that detects the storehouse is equipped with the mount, and the top outer wall of mount is fixed with the universal joint, the mount is fixed with the pendulum rod through the universal joint, and the bottom of pendulum rod is connected with the light. The utility model discloses a two grating packaging structure, the self-compensation of temperature can be realized to the temperature compensation component in the cooperation, and it is convenient to calculate, can concatenate a plurality ofly or with the fiber grating sensor of other types, real-time supervision, but magnetic induction pivot angle signal detection structure guarantees its declination and can fix a position the deviation fast, realizes the inclination through the dot matrix signal light source cooperation and detects.

Description

Fiber grating inclinometer

Technical Field

The utility model relates to an inclinometer technical field especially relates to a fiber grating inclinometer.

Background

Inclinometers, also known as goniometers and electronic goniometers, are commonly used for measuring horizontal angles, relative angles and inclination angles. Fiber grating inclinometers have a wide range of tilt monitoring applications, such as: the device can be used for bridge towers, electric power towers and high-rise buildings, and can also be used for monitoring the convergence deformation of shield tunnels.

When a shaft in a base body of the existing inclinometer rotates towards one direction, the counting is increased, and when the rotating direction is changed, the counting is reduced. The count is related to the initial position of the inclinometer. When the inclinometer is initialized, its count value is set to 0 ° and the position and speed are measured by counting the angle of rotation. The precision is not high, the temperature influence is not compensated, and the accuracy of the data can be influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a fiber grating inclinometer.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a fiber grating inclinometer, includes the base, the top outer wall of base is equipped with the detection storehouse, and the one end inner wall that detects the storehouse is equipped with the fiber connector, detect the storehouse and pass through fiber connector fixedly connected with optic fibre, and the other end of optic fibre is connected with signal connector, the top outer wall of base is equipped with the inclination instrument, one side that the tip of base is close to the inclination instrument is equipped with the annunciator, the top inner wall that detects the storehouse is equipped with the mount, and the top outer wall of mount is fixed with the universal joint, the mount is fixed with the pendulum rod through the universal joint, and the bottom of pendulum rod is connected with the light angle board, the bottom inner wall that detects the storehouse is equipped with the signal board, and the top outer wall of signal board is equipped with dot matrix signal light source, one.

Preferably, the four corners department of base all welds the stationary blade, and the inner wall of base is equipped with the magnetic sheet.

Preferably, the bottom outer wall of the light deflection angle plate is provided with a Hall element, the top outer wall of the signal plate is provided with a plate column, and the inner wall of the plate column is clamped with a magnetic column.

Preferably, the temperature compensation element includes FBG thermometer and fiber optic pipe box, and fiber optic cable cup joints and is equipped with fiber grating on fiber optic pipe box's inner wall, the FBG thermometer is to pressing from both sides on the one end outer wall of optic fibre.

Preferably, the outer wall of the bottom of the light deflection angle plate is provided with a light detector, and the light detector and the dot matrix signal light source are parallel to each other.

Preferably, the annunciator is connected with the signal board and the temperature compensation element through signal lines, and an inclination angle pointer of the inclination angle instrument is connected with a swing rod of the light deflection angle board.

The utility model has the advantages that:

1. the fiber grating inclinometer is a double-grating packaging structure, can realize self-compensation of temperature by matching with an upper temperature compensation element, is convenient to calculate, can be connected in series with a plurality of or other types of fiber grating sensors, monitors in real time, ensures that the optical deflection angle can quickly position deviation by matching with a magnetically-induced swing angle signal detection structure, and realizes inclination angle detection by matching with a dot matrix signal light source;

2. this fiber grating inclinometer passes through the annunciator, and the direct output physical quantity after carrying out data processing to measured data automatically reduces the error of artifical conversion, and the inclinometer reads data through signal joint connecting device, also carries out data automatic acquisition through the long-range wireless automation data acquisition system of annunciator access.

Drawings

Fig. 1 is a schematic view of a fiber grating inclinometer according to the present invention;

fig. 2 is a schematic view of the internal front view structure of the detection chamber of the fiber grating inclinometer provided by the utility model;

fig. 3 is the utility model provides a fiber grating inclinometer's inside structure schematic diagram that looks sideways at in detection storehouse.

In the figure: the device comprises a base 1, a annunciator 2, an inclination angle meter 3, a detection bin 4, an optical fiber connector 5, a fixing sheet 6, an optical fiber 7, a signal connector 8, a fixing frame 9, a swing rod 10, an optical deflection angle plate 11, a dot matrix signal light source 12, a signal plate 13 and a Hall element 14.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-3, a fiber grating inclinometer comprises a base 1, a detection chamber 4 is arranged on the outer wall of the top of the base 1, an optical fiber connector 5 is arranged on the inner wall of one end of the detection chamber 4, the detection chamber 4 is fixedly connected with an optical fiber 7 through the optical fiber connector 5, the other end of the optical fiber 7 is connected with a signal connector 8, an inclination angle instrument 3 is arranged on the outer wall of the top end of the base 1, an annunciator 2 is arranged on one side of the end of the base 1 close to the inclination angle instrument 3, a fixing frame 9 is arranged on the inner wall of the top end of the detection chamber 4, a universal joint is fixed on the outer wall of the top of the fixing frame 9, a swing rod 10 is fixed through the universal joint, the bottom end of the swing rod 10 is connected with a light deflection angle plate 11, a signal plate 13 is arranged on the inner wall of the bottom of the detection, the four corners department of base 1 has all welded the stationary blade 6, and base 1's inner wall is equipped with the magnetic sheet, the bottom outer wall of light deflection scute 11 is equipped with hall element 14, and the top outer wall of signal board 13 is equipped with the board post, the inner wall joint of board post has the magnetic column, temperature compensation component 15 includes FBG thermometer and fiber tube box, and optic fibre 7 cup joints and is equipped with fiber grating on the inner wall of fiber tube box, the FBG thermometer is to pressing from both sides on the one end outer wall of optic fibre 7, the bottom outer wall of light deflection scute 11 is equipped with the photo detector, and photo detector and lattice signal light source are parallel to each other, 2 signal ware pass through signal line and signal board 13, temperature compensation component 15 is connected, and the inclination pointer of inclination instrument 3 is connected with the.

The working principle is as follows: this fiber grating inclinometer is two grating packaging structure, temperature compensation component 15 can realize the self-compensation of temperature in the cooperation, it is convenient to calculate, can a plurality ofly or concatenate with other types of fiber grating sensor, real-time supervision, the cooperation is gone up the magnetic induction pendulum angle signal detection structure that hall element 14 formed, but guarantee the quick positioning deviation of the light declination between its light declination board 11 and the signal board 13, realize the inclination detection through the cooperation of dot matrix signal light source 12 again, directly output physical quantity after carrying out data processing to measured data again automatically, reduce the error of artifical conversion, the inclinometer connects equipment through signal connector 8 to read data, also insert long-range wireless automatic data acquisition system through annunciator 2 and carry out data automatic acquisition.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The fiber bragg grating inclinometer comprises a base (1) and is characterized in that a detection bin (4) is arranged on the outer wall of the top of the base (1), an optical fiber connector (5) is arranged on the inner wall of one end of the detection bin (4), an optical fiber (7) is fixedly connected to the detection bin (4) through the optical fiber connector (5), the other end of the optical fiber (7) is connected with a signal connector (8), an inclination angle instrument (3) is arranged on the outer wall of the top end of the base (1), a annunciator (2) is arranged on one side, close to the inclination angle instrument (3), of the end portion of the base (1), a fixing frame (9) is arranged on the inner wall of the top end of the detection bin (4), a universal joint is fixed on the outer wall of the top of the fixing frame (9), a swing rod (10) is fixed on the fixing frame (9) through the universal joint, a light deflection angle plate (11) is connected to the bottom, and the top outer wall of signal board (13) is equipped with dot matrix signal light source (12), base (1) is close to one side inner wall of signal board (13) and is equipped with temperature compensation component (15).

2. The fiber bragg grating inclinometer according to claim 1, characterized in that fixing plates (6) are welded at the four corners of the base (1), and magnetic plates are arranged on the inner wall of the base (1).

3. The fiber bragg grating inclinometer according to claim 1, characterized in that a Hall element (14) is arranged on the outer wall of the bottom of the light deflection angle plate (11), a plate column is arranged on the outer wall of the top of the signal plate (13), and a magnetic column is clamped on the inner wall of the plate column.

4. A fibre grating inclinometer according to claim 1, characterized in that the temperature compensation element (15) comprises an FBG thermometer and a fibre sleeve, and the optical fibre (7) is sleeved on the inner wall of the fibre sleeve with the fibre grating, said FBG thermometer pair being clamped on the outer wall of one end of the optical fibre (7).

5. A fiber grating inclinometer according to claim 1, characterized in that the bottom outer wall of the light deflection plate (11) is provided with a light detector, and the light detector and the lattice signal light source are parallel to each other.

6. A fiber grating inclinometer according to claim 1, characterized in that the annunciator (2) is connected to the signal board (13) and the temperature compensation element (15) via signal lines, and the inclination pointer of the inclinometer (3) is connected to the rocker (10) of the optical deflection board (11).