CN112880714B - Fiber bragg grating temperature and humidity sensor and temperature and humidity measurement system - Google Patents

Fiber bragg grating temperature and humidity sensor and temperature and humidity measurement system Download PDF

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Publication number
CN112880714B
CN112880714B CN202110136759.2A CN202110136759A CN112880714B CN 112880714 B CN112880714 B CN 112880714B CN 202110136759 A CN202110136759 A CN 202110136759A CN 112880714 B CN112880714 B CN 112880714B
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sensor
temperature
mounting seat
humidity
power distribution
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CN112880714A (en
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吴建福
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Huanxin Yilian Shanghai Technology Co ltd
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Huanxin Yilian Shanghai Technology Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/353Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/10Elements for damping the movement of parts
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/24Housings ; Casings for instruments
    • G01D11/245Housings for sensors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/24Housings ; Casings for instruments
    • G01D11/26Windows; Cover glasses; Sealings therefor
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/08Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/124Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

The invention provides a fiber bragg grating temperature and humidity sensor and a temperature and humidity measurement system, and relates to the technical field of optical sensing and measurement. The fiber bragg grating temperature and humidity sensor and the temperature and humidity measurement system comprise a sensor main body arranged between a first mounting seat and a second mounting seat, wherein connecting seats are fixedly connected to two ends of the sensor main body, and communication optical fibers are fixedly connected to one ends, far away from the sensor main body, of the two connecting seats; the sensor is characterized in that a transparent protective cover corresponding to the sensor body is arranged between the first mounting seat and the second mounting seat, and fixing rings corresponding to the sensor body and the two connecting seats are arranged at the bottoms of the first mounting seat and the second mounting seat. Through the simple measurement system of design both, both can carry out real-time measurement and transmission to temperature and humidity change information in each switch board, can improve self protective properties greatly through the sensor body that has protective structure of design simultaneously, prolonged its life, be worth popularizing greatly.

Description

Fiber bragg grating temperature and humidity sensor and temperature and humidity measurement system
Technical Field
The invention relates to the technical field of optical sensing measurement, in particular to a fiber bragg grating temperature and humidity sensor and a temperature and humidity measurement system.
Background
The power system is an electric energy production and consumption system which is composed of links such as power generation, power transmission, transformation, power distribution, power consumption and the like; the system has the functions that primary energy in nature is converted into electric energy through a power generation power device, and then the electric energy is supplied to each user through power transmission, transformation and distribution; in order to realize the function, the power system is also provided with corresponding information and control systems in various links and different levels, and the production process of the electric energy is measured, regulated, controlled, protected, communicated and scheduled so as to ensure that a user obtains safe, economical and high-quality electric energy; the safety state means that the frequency of the power system, the voltage of each point and the load of each element are all in a specified allowable value range, and when the system is disturbed due to load fluctuation or faults, the system is not separated from the normal running state; because the power generation, the power transmission and the power utilization must be balanced at any moment, and the power load changes at any moment, the safe state is in fact a dynamic balance, the fiber bragg grating temperature and humidity sensor provides a brand new effective solving way for the temperature monitoring of the power industry, is suitable for occasions sensitive to power sparks such as fire protection, power and the like, overcomes the defects of the traditional electric quantity sensor, and has the advantages of compact structure, small volume, convenient arrangement, electromagnetic interference resistance, high precision, good durability, capability of being stuck on the surface, capability of being arranged inside equipment and the like by adopting a non-metallized packaging technology through normal adjustment control.
The fiber bragg grating temperature and humidity sensor is used as accurate temperature and humidity detection equipment, is widely applied to an electric power system due to the excellent performance of the fiber bragg grating temperature and humidity sensor, is mainly used for monitoring the temperature change of each circuit component in a power distribution cabinet in real time, is different in the market at present, but has certain defects in the whole structural design, and in the actual use process, the measurement accuracy is easily reduced due to the influence of the working environment, so that a new fiber bragg grating temperature and humidity sensor and a new temperature and humidity measurement system are developed.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides the fiber grating temperature and humidity sensor and the temperature and humidity measurement system, which solve the problems that the whole structural design of the traditional fiber grating temperature and humidity sensor still has certain defects, and the measurement accuracy is easy to be reduced due to the influence of the working environment in the actual use process.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the fiber bragg grating temperature and humidity sensor comprises a sensor main body arranged between a first mounting seat and a second mounting seat, wherein connecting seats are fixedly connected to two ends of the sensor main body, and communication optical fibers are fixedly connected to one ends, far away from the sensor main body, of the two connecting seats;
a transparent protective cover corresponding to the sensor main body is arranged between the first mounting seat and the second mounting seat, fixing rings corresponding to the sensor main body and the two connecting seats are arranged at the bottoms of the first mounting seat and the second mounting seat, and the two fixing rings are fixedly connected with the first mounting seat and the second mounting seat through fixing bolts;
annular clamp splice is all installed to the inboard of first mount pad, second mount pad and two solid fixed rings, all fixedly connected with damping spring between first mount pad, second mount pad and two solid fixed rings and the corresponding annular clamp splice.
Preferably, the transparent protective cover is sleeved on the outer side of the sensor main body.
Preferably, the transparent protective cover can be made of toughened glass or acrylic plate materials.
Preferably, the outer walls of two groups of opposite sides of the annular clamping blocks are fixedly connected with limiting blocks corresponding to the transparent protective cover.
A temperature and humidity measurement system of a fiber grating temperature and humidity sensor comprises a monitoring center, a temperature measuring host, a main junction box, a branch junction box and a sensor body arranged in a power distribution cabinet.
Preferably, the main junction box is electrically connected with the corresponding tapping line box through a plurality of communication cables respectively.
Preferably, the plurality of sensor bodies are electrically connected with the corresponding tapping line boxes respectively through sensing wires, and the number of the sensors in each power distribution cabinet can be single or multiple.
The operation method of the temperature and humidity measurement system of the fiber grating temperature and humidity sensor comprises the following specific contents:
s1, firstly, a special tool is needed to press the sensors in the corresponding power distribution cabinets, and single or multiple sensors can be installed in the power distribution cabinets according to actual needs;
s2, the installed sensor bodies are electrically connected with the corresponding tapping boxes respectively through sensing wires, and if a plurality of different sensor bodies are installed in one power distribution cabinet, the plurality of sensing wires are needed to be used for connecting the tapping boxes respectively;
s3, the tapping boxes at the installation positions of the power distribution cabinets are respectively connected with the main junction boxes by utilizing communication cables, so that measurement data of the tapping boxes can be transmitted to the main junction boxes through the communication cables;
s4, the main junction box is connected with the temperature measuring host through a data line, so that the temperature measuring host is utilized to uniformly collect data information measured by the sensors in all the power distribution cabinets;
s5, monitoring personnel of the monitoring center can utilize computer equipment to carry out data induction and arrangement on information collected by the temperature measuring host, and carry out data analysis and modeling on the information, so that management personnel of the monitoring center can measure and monitor temperature and humidity information measured by sensors in all power distribution cabinets in real time.
(III) beneficial effects
The invention provides a fiber bragg grating temperature and humidity sensor and a temperature and humidity measurement system. The beneficial effects are as follows:
1. this kind of fiber bragg grating temperature and humidity sensor and temperature and humidity measurement system through the design from the sensor of taking protective structure, can use multiple different operational environment, can not lead to measurement accuracy to reduce because of the vibrations of equipment, also make things convenient for the operation working condition of each switch board of remote real-time supervision in monitoring center simultaneously, can arrange fast when breaking down to overhaul and maintain.
2. This kind of fiber bragg grating temperature and humidity sensor and temperature and humidity measurement system can carry out real-time measurement and transmission to temperature and humidity change information in each switch board, has the protective properties of self can be improved greatly through the sensor body that the design has protective structure simultaneously, has prolonged its life to make its work efficiency improve greatly, be worth popularizing greatly.
Drawings
FIG. 1 is a schematic diagram of a fiber grating temperature and humidity sensor according to the present invention;
FIG. 2 is a schematic diagram of an installation structure of a fiber grating temperature and humidity sensor according to the present invention;
fig. 3 is a schematic diagram of a system structure of a temperature and humidity measurement system of a fiber grating temperature and humidity sensor according to the present invention.
1, a first mounting seat; 2. a second mounting base; 3. a sensor body; 4. a connecting seat; 5. a communication optical fiber; 6. a transparent protective cover; 7. a fixing ring; 8. a fixing bolt; 9. an annular clamping block; 10. a damping spring; 11. and a limiting block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples:
as shown in fig. 1-3, an embodiment of the present invention provides an optical fiber grating temperature and humidity sensor, which includes a sensor main body 3 installed between a first installation seat 1 and a second installation seat 2, two ends of the sensor main body 3 are fixedly connected with connection seats 4, and one ends of the two connection seats 4 far away from the sensor main body 3 are fixedly connected with communication optical fibers 5;
a transparent protective cover 6 corresponding to the sensor main body 3 is arranged between the first mounting seat 1 and the second mounting seat 2, fixing rings 7 corresponding to the sensor main body 3 and the two connecting seats 4 are arranged at the bottoms of the first mounting seat 1 and the second mounting seat 2, and the two fixing rings 7 are fixedly connected with the first mounting seat 1 and the second mounting seat 2 through fixing bolts 8;
annular clamp splice 9 is all installed to the inboard of first mount pad 1, second mount pad 2 and two solid fixed rings 7, all fixedly connected with damping spring 10 between first mount pad 1, second mount pad 2 and two solid fixed rings 7 and the corresponding annular clamp splice 9, through all fixedly connected with damping spring 10 between first mount pad 1, second mount pad 2 and two solid fixed rings 7 and the corresponding annular clamp splice 9, thereby can utilize a plurality of damping springs 10 and annular clamp splice 9 to reduce because of equipment vibrations, and lead to sensor main part 3 to take place synchronous vibration's condition, reduced the probability that sensor main part 3 damaged, make it adaptable comparatively abominable dry operational environment, also prolonged its holistic life simultaneously.
The transparent protective cover 6 is sleeved on the outer side of the sensor main body 3.
The transparent protective cover 6 can be made of toughened glass or acrylic plate materials, and the transparent protective cover 6 made of toughened glass or acrylic plate materials is firm in structure and can well protect the sensor main body 3.
The outer walls of the opposite sides of the two groups of annular clamping blocks 9 are fixedly connected with limiting blocks 11 corresponding to the transparent protective cover 6, so that the transparent protective cover 6 can be installed with positioning and limiting functions.
A temperature and humidity measurement system of a fiber grating temperature and humidity sensor comprises a monitoring center, a temperature measuring host, a main junction box, a branch junction box and a sensor body arranged in a power distribution cabinet.
The main junction box is electrically connected with the corresponding tapping line boxes through a plurality of communication cables respectively.
The plurality of sensor bodies are respectively and electrically connected with the corresponding tapping line boxes through sensing wires, and the number of the sensors in each power distribution cabinet can be single or multiple.
The operation method of the temperature and humidity measurement system of the fiber grating temperature and humidity sensor comprises the following specific contents:
s1, firstly, a special tool is needed to press the sensors in the corresponding power distribution cabinets, and single or multiple sensors can be installed in the power distribution cabinets according to actual needs;
s2, the installed sensor bodies are electrically connected with the corresponding tapping boxes respectively through sensing wires, and if a plurality of different sensor bodies are installed in one power distribution cabinet, the plurality of sensing wires are needed to be used for connecting the tapping boxes respectively;
s3, the tapping boxes at the installation positions of the power distribution cabinets are respectively connected with the main junction boxes by utilizing communication cables, so that measurement data of the tapping boxes can be transmitted to the main junction boxes through the communication cables;
s4, the main junction box is connected with the temperature measuring host through a data line, so that the temperature measuring host is utilized to uniformly collect data information measured by the sensors in all the power distribution cabinets;
s5, monitoring personnel of the monitoring center can utilize computer equipment to carry out data induction and arrangement on information collected by the temperature measuring host, and carry out data analysis and modeling on the information, so that management personnel of the monitoring center can measure and monitor temperature and humidity information measured by sensors in all power distribution cabinets in real time.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A fiber bragg grating temperature and humidity sensor is characterized in that: the sensor comprises a sensor main body (3) arranged between a first mounting seat (1) and a second mounting seat (2), wherein connecting seats (4) are fixedly connected to two ends of the sensor main body (3), and communication optical fibers (5) are fixedly connected to one ends, far away from the sensor main body (3), of the two connecting seats (4);
a transparent protective cover (6) corresponding to the sensor main body (3) is arranged between the first mounting seat (1) and the second mounting seat (2), fixing rings (7) corresponding to the sensor main body (3) and the two connecting seats (4) are arranged at the bottoms of the first mounting seat (1) and the second mounting seat (2), and the two fixing rings (7) are fixedly connected with the first mounting seat (1) and the second mounting seat (2) through fixing bolts (8);
annular clamping blocks (9) are arranged on the inner sides of the first mounting seat (1), the second mounting seat (2) and the two fixing rings (7), and damping springs (10) are fixedly connected between the first mounting seat (1), the second mounting seat (2) and the two fixing rings (7) and the corresponding annular clamping blocks (9);
the transparent protective cover (6) is sleeved on the outer side of the sensor main body (3);
the transparent protective cover (6) can be made of toughened glass or acrylic plate materials;
limiting blocks (11) corresponding to the transparent protective cover (6) are fixedly connected to the outer walls of the two groups of opposite sides of the annular clamping blocks (9).
2. The fiber bragg grating temperature and humidity sensor temperature and humidity measurement system according to claim 1, wherein: the intelligent temperature measuring device comprises a monitoring center, a temperature measuring host, a main junction box, a branch junction box and a sensor body arranged in a power distribution cabinet.
3. The fiber bragg grating temperature and humidity sensor temperature and humidity measurement system according to claim 2, wherein: the main junction box is electrically connected with the corresponding tapping line boxes through a plurality of communication cables respectively.
4. A fiber bragg grating temperature and humidity sensor temperature and humidity measurement system according to claim 3, wherein: the plurality of sensor bodies are electrically connected with the corresponding tapping line boxes through sensing wires respectively, and the number of the sensors in each power distribution cabinet is single or multiple.
5. The method for operating a fiber bragg grating temperature and humidity sensor temperature and humidity measurement system according to claim 4, comprising the following specific contents:
s1, firstly, pressing the sensors in corresponding power distribution cabinets by using special tools, and installing single or multiple sensors in the power distribution cabinets according to actual needs;
s2, the installed sensor bodies are electrically connected with the corresponding tapping boxes respectively through sensing wires, and if a plurality of different sensor bodies are installed in one power distribution cabinet, the plurality of sensing wires are needed to be used for connecting the tapping boxes respectively;
s3, the tapping boxes at the installation positions of the power distribution cabinets are respectively connected with the main junction boxes by utilizing communication cables, so that measurement data of the tapping boxes can be transmitted to the main junction boxes through the communication cables;
s4, the main junction box is connected with the temperature measuring host through a data line, so that the temperature measuring host is utilized to uniformly collect data information measured by the sensors in all the power distribution cabinets;
s5, monitoring personnel of the monitoring center carry out data induction and arrangement on information collected by the temperature measuring host computer by using computer equipment, and carry out data analysis and modeling on the information, so that management personnel of the monitoring center can measure and monitor temperature and humidity information measured by sensors in all power distribution cabinets in real time.
CN202110136759.2A 2021-02-01 2021-02-01 Fiber bragg grating temperature and humidity sensor and temperature and humidity measurement system Active CN112880714B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101852643A (en) * 2010-05-25 2010-10-06 中国人民解放军国防科学技术大学 Temperature self-compensating double grating symmetrical push-pull type fiber grating vibrating sensor
CN201628591U (en) * 2009-10-10 2010-11-10 国网电力科学研究院 Optical fiber grating temperature sensor
CN104567998A (en) * 2014-12-12 2015-04-29 中国航空工业集团公司北京长城计量测试技术研究所 Optical fiber Bragg grating sensing principle-based temperature-self-compensating intelligent bolt
CN108168586A (en) * 2018-02-07 2018-06-15 濮阳光电产业技术研究院 A kind of fiber grating humiture integrative sensor
CN207816297U (en) * 2018-03-08 2018-09-04 云南电网有限责任公司电力科学研究院 A kind of fiber grating Temperature Humidity Sensor
CN209086130U (en) * 2018-10-18 2019-07-09 中际物联科技(深圳)有限公司 A kind of fiber bragg grating temperature sensor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201628591U (en) * 2009-10-10 2010-11-10 国网电力科学研究院 Optical fiber grating temperature sensor
CN101852643A (en) * 2010-05-25 2010-10-06 中国人民解放军国防科学技术大学 Temperature self-compensating double grating symmetrical push-pull type fiber grating vibrating sensor
CN104567998A (en) * 2014-12-12 2015-04-29 中国航空工业集团公司北京长城计量测试技术研究所 Optical fiber Bragg grating sensing principle-based temperature-self-compensating intelligent bolt
CN108168586A (en) * 2018-02-07 2018-06-15 濮阳光电产业技术研究院 A kind of fiber grating humiture integrative sensor
CN207816297U (en) * 2018-03-08 2018-09-04 云南电网有限责任公司电力科学研究院 A kind of fiber grating Temperature Humidity Sensor
CN209086130U (en) * 2018-10-18 2019-07-09 中际物联科技(深圳)有限公司 A kind of fiber bragg grating temperature sensor

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