A continuous distributed fiber optic temperature measurement device

Abstract

The utility model discloses a continuous distribution type optical fiber temperature measuring device, specifically relates to the technical field of optical fiber temperature measurement, including optical fiber temperature measuring host computer and display screen, and display screen fixed mounting is at the top center position department of optical fiber temperature measuring host computer, and the rear side fixed mounting of optical fiber temperature measuring host computer has a plurality of communication interfaces and a plurality of optical fiber interfaces, and a plurality of optical fiber interfaces are provided with the protection frame between the front side of protection frame and optical fiber temperature measuring host computer fixed connection, and the protection frame is provided with a plurality of separate components on. Optical fiber temperature measuring host computer can be directly connected temperature sensing cable through optical fiber patch cord in the utility model, and the handle is moved upward, thereby driving connecting rod and partition board to move upward, and then the one end of optical fiber patch cord is inserted into optical fiber interface, and a plurality of optical fiber patch cords can be separated through a plurality of partition boards, and distributed continuous real -time temperature monitoring can be realized, and it is convenient to separate a plurality of optical fiber patch cords.

Description

Technical Field

[0001] This utility model relates to the field of fiber optic temperature measurement technology, and more specifically, to a continuous distributed fiber optic temperature measurement device. Background Technology

[0002] Quasi-distributed temperature measurement using fiber Bragg gratings mainly consists of a broadband light source, a sensing fiber with multiple FBG (fiber Bragg grating) sensors, and a demodulator. When broadband light is injected into the fiber, each FBG reflects back a specific Bragg wavelength (λ_B). This wavelength is determined by the grating period and the core refractive index. The λ_B of each FBG is pre-designed to be non-overlapping, ensuring that the demodulator can distinguish signals from different sensors. When the temperature at the location of the FBG changes, the reflected Bragg wavelength will drift linearly. The demodulator detects the wavelength drift of each FBG through high-precision spectral analysis and, combined with a pre-calibrated temperature-wavelength relationship, can calculate the temperature of the corresponding measurement point.

[0003] Currently, quasi-distributed temperature measurement using fiber optic gratings (FBGs) is difficult to achieve true continuous distributed measurement. FBGs are point sensors that can only measure the temperature of discrete points on the fiber where gratings are pre-written. For temperature anomalies occurring in the blind areas between gratings, such as when a cable joint is not located at an FBG installation point, the system cannot detect them at all, resulting in monitoring blind spots. Therefore, it is difficult to use FBGs in scenarios that require full-line monitoring without blind spots, such as fire alarms and pipeline leaks. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a continuous distributed optical fiber temperature measurement device, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a continuous distributed fiber optic temperature measurement device, comprising a fiber optic temperature measurement host and a display screen, wherein the display screen is fixedly installed at the top center of the fiber optic temperature measurement host, and multiple communication interfaces and multiple fiber optic interfaces are fixedly installed on the rear side of the fiber optic temperature measurement host, a protective frame is provided between the multiple fiber optic interfaces, and the front side of the protective frame is fixedly connected to the fiber optic temperature measurement host, and multiple partition components are provided on the protective frame, each of the multiple partition components including a partition plate, a connecting rod, a handle, a spring, a first buffer pad and two second buffer pads, the top and bottom ends of the connecting rod are fixedly connected to the handle and the partition plate respectively, the spring is movably sleeved on the connecting rod, and the top and bottom ends of the spring are fixedly connected to the protective frame and the partition plate respectively.

[0006] Furthermore, the first buffer pad is fixedly installed inside the partition plate.

[0007] As can be seen, in the above technical solution, the first buffer pad can prevent the separator plate from making rigid contact with the fiber optic patch cord.

[0008] Furthermore, both of the second buffer pads are fixedly installed at the bottom end of the partition plate.

[0009] As can be seen, in the above technical solution, the second buffer pad can prevent the partition plate from making rigid contact with the protective frame.

[0010] Furthermore, the bottom of the fiber optic temperature measurement host is provided with a base, and a rotating component is provided between the base and the fiber optic temperature measurement host. The rotating component includes a stepper motor, a rotating shaft and a U-shaped plate.

[0011] Furthermore, the stepper motor is fixedly installed at the center of the bottom of the base, and the output shaft end of the stepper motor is fixedly connected to the rotating shaft, and the top end of the rotating shaft is fixedly connected to the fiber optic temperature measurement host.

[0012] Furthermore, the bottom end of the U-shaped plate is fixedly connected to the base, and the U-shaped plate is movably connected to the rotating shaft via a bearing.

[0013] As can be seen, in the above technical solution, the U-shaped plate can provide auxiliary support for the rotating shaft.

[0014] Furthermore, the bottom of the fiber optic temperature measurement host is fixedly connected to multiple columns, and the bottom of each of the multiple columns is fixedly connected to a caster wheel, and the bottom of each caster wheel is in contact with the base.

[0015] It can be seen that the above technical solution facilitates the support of the fiber optic temperature measurement host.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. In this utility model, the fiber optic temperature measurement host can be directly connected to the temperature sensing cable via fiber optic patch cords. Moving the handle upwards will cause the connecting rod and the partition plate to move upwards, thereby compressing the spring. Then, one end of the fiber optic patch cord can be inserted into the fiber optic interface. Multiple fiber optic patch cords can be separated by multiple partition plates, which can realize distributed continuous real-time temperature monitoring and facilitate the separation of multiple fiber optic patch cords.

[0018] 2. This utility model uses a stepper motor to drive the rotating shaft, thereby adjusting the position of the fiber optic temperature measuring host and multiple fiber optic patch cords, and installing or removing the fiber optic patch cords without the need for manual movement of the fiber optic temperature measuring host. At the same time, multiple columns and multiple casters can support the fiber optic temperature measuring host. The fiber optic temperature measuring host can drive the multiple columns to rotate, and the multiple casters can slide on the base. The structure is simple and easy to use. Attached Figure Description

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a perspective view of the present invention from the rear view direction;

[0022] Figure 3 This is a schematic diagram of the fiber optic temperature measurement host and fiber optic interface assembly structure of this utility model.

[0023] Figure 4 This is a schematic diagram of the assembly structure of the base and the U-shaped plate of this utility model;

[0024] Figure 5 This is a schematic diagram of the separator component structure of this utility model.

[0025] In the diagram: 1. Fiber optic temperature measurement host; 2. Display screen; 3. Base; 4. Protective frame; 5. Divider assembly; 6. Communication interface; 7. Fiber optic interface; 8. Column; 9. Casters; 10. Stepper motor; 11. Shaft; 12. U-shaped plate; 501. Divider plate; 502. Connecting rod; 503. Handle; 504. Spring; 505. First buffer pad; 506. Second buffer pad. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Refer to the instruction manual appendix Figure 1-5This embodiment of a continuous distributed fiber optic temperature measurement device includes a fiber optic temperature measurement host 1 and a display screen 2. The display screen 2 is fixedly installed at the top center of the fiber optic temperature measurement host 1. Multiple communication interfaces 6 and multiple fiber optic interfaces 7 are fixedly installed on the rear side of the fiber optic temperature measurement host 1. A protective frame 4 is provided between the multiple fiber optic interfaces 7, and the front side of the protective frame 4 is fixedly connected to the fiber optic temperature measurement host 1. Multiple partition components 5 are provided on the protective frame 4. Each partition component 5 includes a partition plate 501, a connecting rod 502, a handle 503, a spring 504, a first buffer pad 505, and two second buffer pads 506. The top and bottom ends of the connecting rod 502 are fixedly connected to the handle 503 and the partition plate 501, respectively. The spring 504 is movably sleeved on the connecting rod 502, and the top and bottom ends of the spring 504 are fixedly connected to the protective frame 4 and the partition plate 501, respectively.

[0028] like Figure 5 As shown, the first buffer pad 505 is fixedly installed inside the partition plate 501, and the two second buffer pads 506 are fixedly installed at the bottom of the partition plate 501.

[0029] like Figure 1-4 As shown, a base 3 is provided at the bottom of the fiber optic temperature measuring host 1. A rotating assembly is provided between the base 3 and the fiber optic temperature measuring host 1. The rotating assembly includes a stepper motor 10, a rotating shaft 11, and a U-shaped plate 12. The stepper motor 10 is fixedly installed at the center of the bottom end of the base 3, and the output shaft end of the stepper motor 10 is fixedly connected to the rotating shaft 11. The top end of the rotating shaft 11 is fixedly connected to the fiber optic temperature measuring host 1. The bottom end of the U-shaped plate 12 is fixedly connected to the base 3, and the U-shaped plate 12 and the rotating shaft 11 are movably connected through a bearing. Multiple columns 8 are fixedly connected to the bottom end of the fiber optic temperature measuring host 1. The bottom ends of the multiple columns 8 are all fixedly connected to casters 9, and the bottom ends of the multiple casters 9 are all in contact with the base 3.

[0030] When the fiber optic temperature measuring host 1 is placed in a corner, the stepper motor 10 is started. The stepper motor 10 drives the rotating shaft 11 to rotate, and the U-shaped plate 12 can provide auxiliary support for the rotating shaft 11. This allows the position of the fiber optic temperature measuring host 1 and multiple fiber optic jumpers to be adjusted, and the fiber optic jumpers to be installed or removed without manual movement of the fiber optic temperature measuring host 1. At the same time, multiple columns 8 and multiple casters 9 can support the fiber optic temperature measuring host 1. The fiber optic temperature measuring host 1 can drive the multiple columns 8 to rotate, and the multiple casters 9 can slide on the base 3. The structure is simple and easy to use. It is worth noting that the stepper motor 10 has a built-in electromagnetic locking structure.

[0031] The usage method of this embodiment is as follows:

[0032] In use, the fiber optic temperature measurement host 1 can be directly connected to the temperature sensing optical cable via fiber optic patch cord. As a temperature monitoring device, the built-in temperature measurement software of the fiber optic temperature measurement host 1 can display the temperature curve along the fiber, the location of the fault point, and the alarm threshold in real time. Secondly, as a data acquisition device, it can capture changes in optical signals through a high-speed signal acquisition module to avoid data loss. There is no need to configure a separate communication management unit. The fiber optic temperature measurement host 1 utilizes the Raman scattering principle of optical fiber. When the temperature changes at a certain point in the fiber, the scattered light is affected. Through high-speed signal acquisition and data processing technology, the location of the disturbance is accurately located and real-time temperature alarm information is given. When the temperature exceeds the preset threshold, alarm information will be sent simultaneously through the pop-up window on the display screen 2, audible and visual alarms, and remote communication module to realize real-time temperature warning.

[0033] Moving the handle 503 upwards causes the connecting rod 502 and the partition plate 501 to move upwards, which in turn compresses the spring 504. Then, one end of the fiber optic patch cord is inserted into the fiber optic interface 7. Releasing the handle 503 causes the spring 504 to rebound, causing the partition plate 501 to move downwards. The first buffer pad 505 prevents the partition plate 501 from rigidly contacting the fiber optic patch cord, and the second buffer pad 506 prevents the partition plate 501 from rigidly contacting the protective frame 4. Similarly, multiple fiber optic patch cords can be installed. Multiple partition plates 501 can separate multiple fiber optic patch cords, avoiding optical signal loss caused by multiple fiber optic patch cords squeezing each other. At the same time, it is convenient to quickly identify different fiber optic patch cords during later maintenance. The protective frame 4 not only prevents external dust and water droplets from entering the fiber optic interface 7 area, but also protects the connection between the fiber optic patch cord and the interface in case of accidental collision, reducing the risk of loosening of the connector due to external force. Distributed continuous real-time temperature monitoring can be realized, and it is convenient to separate multiple fiber optic patch cords. It is worth noting that the fiber optic temperature measurement host 1 supports data transmission in both RS-485 and Ethernet communication modes.

[0034] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A continuous distributed fiber optic temperature measurement device, comprising a fiber optic temperature measurement host (1) and a display screen (2), wherein the display screen (2) is fixedly installed at the top center of the fiber optic temperature measurement host (1), characterized in that: The rear side of the fiber optic temperature measuring host (1) is fixedly equipped with multiple communication interfaces (6) and multiple fiber optic interfaces (7). A protective frame (4) is provided between the multiple fiber optic interfaces (7), and the front side of the protective frame (4) is fixedly connected to the fiber optic temperature measuring host (1). Multiple partition components (5) are provided on the protective frame (4). Each partition component (5) includes a partition plate (501), a connecting rod (502), a handle (503), a spring (504), a first buffer pad (505), and two second buffer pads (506). The top and bottom ends of the connecting rod (502) are fixedly connected to the handle (503) and the partition plate (501), respectively. The spring (504) is movably sleeved on the connecting rod (502), and the top and bottom ends of the spring (504) are fixedly connected to the protective frame (4) and the partition plate (501), respectively.

2. The continuous distributed optical fiber temperature measurement device according to claim 1, characterized in that: The first buffer pad (505) is fixedly installed inside the partition plate (501).

3. The continuous distributed optical fiber temperature measurement device according to claim 1, characterized in that: Both of the second buffer pads (506) are fixedly installed at the bottom of the partition plate (501).

4. The continuous distributed optical fiber temperature measurement device according to claim 1, characterized in that: The bottom of the fiber optic temperature measuring host (1) is provided with a base (3), and a rotating component is provided between the base (3) and the fiber optic temperature measuring host (1). The rotating component includes a stepper motor (10), a rotating shaft (11) and a U-shaped plate (12).

5. The continuous distributed optical fiber temperature measurement device according to claim 1, characterized in that: The stepper motor (10) is fixedly installed at the bottom center of the base (3), and the output shaft end of the stepper motor (10) is fixedly connected to the rotating shaft (11), and the top end of the rotating shaft (11) is fixedly connected to the fiber optic temperature measuring host (1).

6. The continuous distributed optical fiber temperature measurement device according to claim 1, characterized in that: The bottom end of the U-shaped plate (12) is fixedly connected to the base (3), and the U-shaped plate (12) and the rotating shaft (11) are movably connected by a bearing.

7. The continuous distributed optical fiber temperature measurement device according to claim 1, characterized in that: The bottom of the fiber optic temperature measuring host (1) is fixedly connected to multiple columns (8), and the bottom of each of the multiple columns (8) is fixedly connected to a caster wheel (9), and the bottom of each of the multiple caster wheels (9) is in contact with the base (3).

Images