CN218956668U - Optical fiber current sensing device - Google Patents
Optical fiber current sensing device Download PDFInfo
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- CN218956668U CN218956668U CN202223386099.2U CN202223386099U CN218956668U CN 218956668 U CN218956668 U CN 218956668U CN 202223386099 U CN202223386099 U CN 202223386099U CN 218956668 U CN218956668 U CN 218956668U
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 51
- 239000000835 fiber Substances 0.000 claims description 23
- 230000000149 penetrating effect Effects 0.000 claims 2
- 238000001514 detection method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of sensors, in particular to an optical fiber current sensing device which is provided with an optical fiber current sensor, a power supply assembly and a shielding box body; the shielding box body is provided with a closed accommodating space; the optical fiber current sensor and the power supply component are arranged in the accommodating space; the power supply assembly is connected with the optical fiber current sensor. The power supply assembly is arranged to supply electric energy to the optical fiber current sensor arranged in the closed accommodating space, and the optical fiber current sensor is isolated from the power system, so that potential lifting generated in the power system is avoided.
Description
Technical Field
The utility model relates to the technical field of sensors, in particular to an optical fiber current sensing device.
Background
With the rapid development of the power industry, the voltage level is continuously increased. The method has the advantages that higher requirements are put on the transmission and detection of the power grid, and the current is used as an important basic physical characteristic quantity in the running process of the power grid, so that various running states of the current can be directly reflected.
Based on the characteristics of good time stability, high measurement accuracy, large measurement range and the like of the optical fiber current sensor, the optical fiber current sensor has the advantages of volume and weight, is convenient to transport and install, has good insulativity and high safety, and is widely applied to current detection operation of a power system. The existing optical fiber current sensor cannot avoid potential lifting generated in a power system, so that detection accuracy is low.
Disclosure of Invention
The utility model provides an optical fiber current sensing device which is used for solving the technical problem that in the prior art, an optical fiber current sensor cannot avoid potential lifting generated in a power system, so that detection precision is low.
The embodiment of the utility model provides an optical fiber current sensing device, which comprises:
the optical fiber current sensor, the power supply assembly and the shielding box body;
the shielding box body is provided with a closed accommodating space;
the optical fiber current sensor and the power supply component are arranged in the accommodating space;
the power supply assembly is connected with the fiber optic current sensor.
In a first possible implementation of the device, the accommodation space is a cuboid space surrounded by an upper wall, a lower wall, a front wall, a rear wall, a left wall and a right wall.
In combination with the first possible implementation, in a second possible implementation, the upper wall is hinged to the rear wall;
the upper wall is connected with the front wall through a locking piece.
In combination with the second possible implementation, in a third possible implementation, the upper wall is connected to the rear wall by a hinge;
the locking piece is a snap lock.
In combination with the first possible implementation, in a fourth possible implementation, the rear wall is perforated with a charging interface;
the power supply assembly is provided with a secondary battery connected with the charging interface.
In combination with the first possible implementation, in a fifth possible implementation, the front wall is perforated with a data interface connected to the fiber optic current sensor.
In combination with the first possible implementation, in a sixth possible implementation, the inner surfaces of the lower wall and the upper wall are each covered with a layer of rubber mat.
In combination with the first possible implementation, in a seventh possible implementation, the outer surface of the upper wall is provided with a handle.
In combination with the first possible implementation, in an eighth possible implementation, the fiber optic current sensor includes a sensor head and an acquisition control unit fixed to the lower wall;
the sensing head is connected with the acquisition control unit through an optical fiber;
the power supply component is connected with the acquisition control unit.
In combination with the eighth possible implementation device, in a ninth possible implementation device, the shielding case is further provided with a fastener connected to the lower wall;
the fastener is detachably connected with the sensing head;
the sensor head is perpendicular to the lower wall.
From the above technical solutions, the embodiment of the present utility model has the following advantages:
the optical fiber current sensing device is provided with an optical fiber current sensor, a power supply assembly and a shielding box body; the shielding box body is provided with a closed accommodating space; the optical fiber current sensor and the power supply component are arranged in the accommodating space; the power supply assembly is connected with the optical fiber current sensor. The optical fiber current sensor is isolated from the power system by providing electric energy for the optical fiber current sensor arranged in the closed accommodating space through the power supply assembly, so that potential lifting generated in the power system is avoided, and the detection precision is ensured not to be affected.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of a partial structure of an optical fiber current sensing device according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of another partial structure of a fiber optic current sensing device according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of another partial structure of a fiber optic current sensing device according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram of another partial structure of a fiber optic current sensing device according to an embodiment of the present utility model;
FIG. 5 is a schematic diagram of another partial structure of a fiber optic current sensing device according to an embodiment of the present utility model;
wherein:
11. front wall 12, rear wall 13, upper wall
131. Mounting plate 14, lower wall 15, left wall
16. Right wall 17, fastener 18, hinge
21. Sensor head 22, acquisition control unit 3, power supply module
31. Charging interface 41, bolt seat 42 and lock body
5. Data interface 6, handle 7, rubber pad.
Detailed Description
The embodiment of the utility model provides an optical fiber current sensing device which is used for solving the technical problem that in the prior art, an optical fiber current sensor cannot avoid potential lifting generated in a power system, so that detection accuracy is low.
In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the embodiments described below are only some embodiments of the present utility model, not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the embodiments of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, interchangeably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or in communication between two elements. The specific meaning of the terms in the embodiments of the present application will be understood by those of ordinary skill in the art in a specific context.
Based on the characteristics of good time stability, high measurement accuracy, large measurement range and the like of the optical fiber current sensor, the optical fiber current sensor has the advantages of volume and weight, is convenient to transport and install, has good insulativity and high safety, and is widely applied to current detection operation of a power system. The existing optical fiber current sensor cannot avoid potential lifting generated in a power system, so that detection accuracy is low.
Referring to fig. 1-5, an optical fiber current sensing device provided in an embodiment of the utility model includes:
an optical fiber current sensor, a power supply assembly 3 and a shielding box body; the shielding box body is provided with a closed accommodating space; the optical fiber current sensor and the power supply component 3 are arranged in the accommodating space; the power supply assembly 3 is connected to a fibre optic current sensor.
It should be noted that:
the optical fiber current sensor is used for detecting the current, and the main principle is that the Faraday effect of a magneto-optical crystal is utilized, and the magnetic field intensity generated by the current can be obtained through measuring the Faraday rotation angle 0F according to the value of VBl, so that the current can be calculated.
The power supply assembly 3 is used to supply power to the fiber optic current sensor, and any device capable of storing power may be used, such as a primary battery, a secondary battery, etc.
The shielding box is used for isolating the optical fiber current sensor from the electric system, i.e. isolating the optical fiber current sensor from the electric field and the magnetic field of the electric system, so as to ensure that the electromagnetic field formed by the electric system does not influence the detection of the optical fiber current sensor, thereby avoiding the potential rise generated in the electric system, the shape of the shielding box is not particularly limited, any structure capable of achieving the aforementioned effects and providing a containing space capable of containing the optical fiber current sensor and the power supply assembly 3 can be adopted, such as a cuboid shell, a cylindrical shell and the like.
The beneficial effects of this embodiment include:
the power supply assembly 3 is arranged to provide electric energy for the optical fiber current sensor arranged in the closed accommodating space, the optical fiber current sensor is isolated from the power system, so that potential lifting generated in the power system is avoided, the detection precision is not affected, the operation is simple, and the reliability and the safety are high.
One preferred embodiment of the shielding cage: the accommodation space is a rectangular space surrounded by an upper wall 13, a lower wall 14, a front wall 11, a rear wall 12, a left wall 15, and a right wall 16.
Exemplary: the shielding box body is a cuboid type shell, and the inner periphery of the shielding box body is formed into a cuboid type space, namely a containing space; the shielding case is made of a material that can block an electromagnetic field.
A preferred embodiment of the upper wall 13: the upper wall 13 is hinged to the rear wall 12; the upper wall 13 is connected to the front wall 11 by a locking member. By providing the upper wall 13 to be hinged with the rear wall 12 and by connecting the locking member with the front wall 11, the upper wall 13 becomes a door that can be opened and closed, facilitating installation, maintenance and replacement of the fiber optic current sensor.
Exemplary: the rear side of the upper wall 13 is connected with the upper side of the rear wall 12 through a hinge 18, so that the upper wall 13 can rotate around the rear wall 12; the locking piece is a snap lock, a lock tongue seat 41 of the snap lock is arranged on a mounting plate 131 vertically connected to the front end of the upper wall 13, a lock body 42 of the snap lock is arranged on the upper part of the front wall 11, and the lock body 42 is matched and connected with the lock tongue seat 41 to realize locking.
Optimizing: the rear wall 12 is provided with a charging interface 31; the power supply unit 3 is provided with a secondary battery connected to the charging interface 31. The secondary battery is arranged to provide electric energy for the optical fiber current sensor, so that the electric energy can be supplemented through charging, the practicability is improved, and the endurance time is long.
Optimizing: the front wall 11 is perforated with a data interface 5 connected to a fibre optic current sensor. The data interface 5 is arranged for the external equipment to be in data connection with the optical fiber current sensor, so that detected data can be output to the external equipment, and the current data can be conveniently acquired by workers.
Exemplary: three BNC interfaces which are horizontally arranged at intervals are arranged on the front wall 11 and below the lock body 42, and the three BNC interfaces are connected with the acquisition control unit 22 of the optical fiber current sensor.
Optimizing: the inner surfaces of the lower wall 14 and the upper wall 13 are covered with a rubber pad. The inner surface of the lower wall 14 and the inner surface of the upper wall 13 are covered with a layer of rubber pad with waterproof and moistureproof functions, so that the shielding box body has waterproof performance and the protection performance is improved.
Optimizing: the outer surface of the upper wall 13 is provided with a handle 6. Portability is improved by providing a handle 6 for carrying in the central region of the upper surface of the upper wall 13.
One preferred embodiment of the fiber optic current sensor: the optical fiber current sensor comprises a sensing head 21 fixed on the lower wall 14 and an acquisition control unit 22; the sensing head 21 is connected with the acquisition control unit 22 through an optical fiber; the power supply assembly 3 is connected to the acquisition control unit 22.
Exemplary: the shielding box is also provided with a fastener 17 connected with the lower wall 14; the fastener 17 is detachably connected with the sensor head 21; the sensor head 21 is perpendicular to the lower wall 14; the acquisition control unit 22 is connected to the power supply assembly 3 by conductors.
The foregoing describes a fiber optic current sensing device provided by the present utility model in detail, and those skilled in the art will appreciate that the scope of the embodiments and applications of the present utility model is not limited to the foregoing description.
Claims (10)
1. A fiber optic current sensing device, comprising:
the optical fiber current sensor, the power supply assembly and the shielding box body;
the shielding box body is provided with a closed accommodating space;
the optical fiber current sensor and the power supply component are arranged in the accommodating space;
the power supply assembly is connected with the optical fiber current sensor.
2. A fiber optic current sensing device according to claim 1, wherein:
the accommodating space is a cuboid space surrounded by an upper wall, a lower wall, a front wall, a rear wall, a left wall and a right wall.
3. A fiber optic current sensing apparatus according to claim 2, wherein:
the upper wall is hinged with the rear wall;
the upper wall is connected with the front wall through a locking piece.
4. A fiber optic current sensing apparatus according to claim 3, wherein:
the upper wall is connected with the rear wall through a hinge;
the locking piece is a snap lock.
5. A fiber optic current sensing apparatus according to claim 2, wherein:
the rear wall is provided with a charging interface in a penetrating way;
the power supply assembly is provided with a secondary battery connected with the charging interface.
6. A fiber optic current sensing apparatus according to claim 2, wherein:
the front wall is provided with a data interface connected with the optical fiber current sensor in a penetrating way.
7. A fiber optic current sensing apparatus according to claim 2, wherein:
the inner surfaces of the lower wall and the upper wall are covered with a layer of rubber pad.
8. A fiber optic current sensing apparatus according to claim 2, wherein:
the outer surface of the upper wall is provided with a handle.
9. A fiber optic current sensing apparatus according to claim 2, wherein:
the optical fiber current sensor comprises a sensing head and an acquisition control unit, wherein the sensing head is fixed on the lower wall;
the sensing head is connected with the acquisition control unit through an optical fiber;
the power supply component is connected with the acquisition control unit.
10. A fiber optic current sensing apparatus according to claim 9, wherein:
the shielding box body is also provided with a fastener connected with the lower wall;
the fastener is detachably connected with the sensing head;
the sensor head is perpendicular to the lower wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223386099.2U CN218956668U (en) | 2022-12-16 | 2022-12-16 | Optical fiber current sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223386099.2U CN218956668U (en) | 2022-12-16 | 2022-12-16 | Optical fiber current sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218956668U true CN218956668U (en) | 2023-05-02 |
Family
ID=86139652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223386099.2U Active CN218956668U (en) | 2022-12-16 | 2022-12-16 | Optical fiber current sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218956668U (en) |
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2022
- 2022-12-16 CN CN202223386099.2U patent/CN218956668U/en active Active
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