CN209673246U - A kind of long period fiber-optical grating temperature sensor - Google Patents

Abstract

The utility model discloses a kind of long period fiber-optical grating temperature sensors, including shell and slot, the right side middle position of the shell is provided with slot, the inside of the slot is socketed with insulating sheath, the inside of the insulating sheath is socketed with tail optical fiber, the left side middle position of the shell is socketed with optical fiber, the utility model has installed shell and insulating sheath additional based on the existing equipment, shell includes mounting hole, detection device, shell and coupler, the detection to temperature may be implemented in detection device, shell can be provided protection against effectively for the utility model, and shell is made of ABS plastic, it not only can effectively prevent the utility model directly to damage when meeting with external mechanical damage, improve the service life of the utility model, the insulation performance of the utility model can be effectively improved simultaneously, it is effective anti- Only electromagnetism etc. interferes the utility model, improves the accuracy of the work of the utility model.

Description

A kind of long period fiber-optical grating temperature sensor

Technical field

The utility model belongs to fibre optical sensor correlative technology field, and in particular to a kind of long-period fiber grating temperature biography Sensor.

Background technique

Fibre optic temperature sensor is a kind of sensing device, is varied with temperature and is changed using the spectrum that moieties absorb Principle, the spectra real time temperature of analysis optical fiber transmission, main material have optical fiber, spectroanalysis instrument, transparent crystal etc., are divided into Distributed, optical fiber fluorescence temperature sensor.

Existing fiber grating temperature sensor technology has the following problems: existing fiber grating temperature sensor makes It is easy to appear during because electromagnetic interference etc. causes device measuring data error, while existing fiber grating temperature occur It spends sensor during use, is easy to lead to equipment damage by external force mechanical damage.

Utility model content

The purpose of this utility model is to provide a kind of long period fiber-optical grating temperature sensors, to solve above-mentioned background skill Being easy of iing is proposed in art and is easy mechanically damaged problem at electromagnetic interference.

To achieve the above object, the utility model provides the following technical solutions: a kind of long-period fiber grating temperature sensing Device, including shell and slot, the right side middle position of the shell are provided with slot, and the inside of the slot is socketed with insulation Sheath, the inside of the insulating sheath are socketed with tail optical fiber, and the left side middle position of the shell is socketed with optical fiber.

Preferably, the shell includes mounting hole, detection device, shell and coupler, the inside quadrangle position of the shell The place of setting is provided with mounting hole, and the inside two sides middle position of the shell is provided with coupler, in the inside of the shell Between be provided with detection device at position.

Preferably, the tail optical fiber includes protective case, enhancement layer, central rib, waterproof layer, fibre core and cable core filler, It is provided with enhancement layer at the interior location of the protective case, waterproof layer is provided at the interior location of the enhancement layer, it is described anti- It is provided with central rib at the bosom position of water layer, is evenly provided with fibre between the central rib and waterproof layer Core, the gap between the central rib and waterproof layer are filled with cable core filler.

Preferably, the detection device includes contact chamber, covering and pedestal, is arranged at the bosom position of the pedestal There is covering, contact chamber is socketed at the inner side of the covering.

Preferably, the material-structure of the optical fiber and tail optical fiber is all the same.

Preferably, the material of the insulating sheath is polyethylene, and the size of the shell is long 40mm, high 8mm, wide 5mm。

Preferably, the material of the shell is ABS plastic.

Preferably, the material of the protective case is polyethylene, and the material of the enhancement layer is Clad Steel band, and the cable core is filled out The material for filling object is silicone oil cream.

Compared with prior art, the utility model provides a kind of long period fiber-optical grating temperature sensor, has following The utility model has the advantages that the utility model has installed shell and insulating sheath additional based on the existing equipment, shell includes mounting hole, detection The detection to temperature may be implemented in device, shell and coupler, detection device, and shell can be provided effectively for the utility model Defencive function, and shell is made of ABS plastic, not only be can effectively prevent the utility model and is met with external mechanical damage When directly damage, improve the service life of the utility model, while can effectively improve the insulation performance of the utility model, have Effect prevents electromagnetism etc. from interfering the utility model, improves the accuracy of the work of the utility model.

Detailed description of the invention

Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention, in the accompanying drawings:

Fig. 1 be the utility model proposes a kind of long period fiber-optical grating temperature sensor structural schematic diagram；

Fig. 2 be the utility model proposes shell mechanism schematic diagram；

Fig. 3 be the utility model proposes tail optical fiber structural schematic diagram；

Fig. 4 be the utility model proposes structure of the detecting device schematic diagram；

In figure: 1, optical fiber；2, shell；3, slot；4, tail optical fiber；5, insulating sheath；21, mounting hole；22, detection device；23, Shell；24, coupler；41, protective case；42, enhancement layer；43, central rib；44, waterproof layer；45, fibre core；46, cable core is filled out Fill object；221, chamber is contacted；222, covering；223, pedestal.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of long period fiber-optical grating temperature sensor, Including shell 2 and slot 3, the right side middle position of shell 2 is provided with slot 3, and the inside of slot 3 is socketed with insulating sheath 5, the inside of insulating sheath 5 is socketed with tail optical fiber 4, and the left side middle position of shell 2 is socketed with optical fiber 1.

Further, shell 2 includes mounting hole 21, detection device 22, shell 23 and coupler 24, the inside quadrangle of shell 23 Mounting hole 21 is provided at position, the inside two sides middle position of shell 23 is provided with coupler 24, the inside of shell 23 Middle position is provided with detection device 22, and shell 2 is the main functional devices of the utility model, and mounting hole 21 is shell 2 Fixing device for installing, detection device 22 can detect temperature, be the major function realization device of the utility model, shell Body 23 is the main structure device of shell 2, while can protect the inner components of shell 2, and coupler 24 may be implemented to light The signal branch of fibre 1 is combined function.

Further, tail optical fiber 4 includes protective case 41, enhancement layer 42, central rib 43, waterproof layer 44, fibre core 45 and cable core Filler 46 is provided with enhancement layer 42 at the interior location of protective case 41, is provided with waterproof layer at the interior location of enhancement layer 42 44, central rib 43 is provided at the bosom position of waterproof layer 44, between central rib 43 and waterproof layer 44 uniformly Be provided with fibre core 45, the gap between central rib 43 and waterproof layer 44 is filled with cable core filler 46, and tail optical fiber 4 can be with Temperature information etc. is transmitted, protective case 41 can both reduce coefficient of friction when tail optical fiber 4 is installed, while can carry out base to tail optical fiber 4 The defencive function of plinth, enhancement layer 42 can not only keep the operating shape of tail optical fiber 4, while can reduce the machine that tail optical fiber 4 is subjected to The tensile resistance of tail optical fiber 4 can be improved in tool damage, central rib 43, and waterproof layer 44 can prevent moisture etc. from invading tail optical fiber 4 Interior, fibre core 45 can both detect temperature, while can also transmit information, and fibre can be effectively protected in cable core filler 46 Core 45 improves the service life of the utility model.

Further, detection device 22 includes contact chamber 221, covering 222 and pedestal 223, the bosom position of pedestal 223 The place of setting is provided with covering 222, and contact chamber 221 is socketed at the inner side of covering 222, and detection device 22 may be implemented to temperature The function of detection, contact chamber 221 are the positions contacted with fibre core 45, and covering 222 is the device of protection contact chamber 221, pedestal 223 It is the device of fixed contact chamber 221 and covering 222.

Further, the material-structure of optical fiber 1 and tail optical fiber 4 is all the same, and optical fiber 1 is identical with 4 material of tail optical fiber effectively to be mentioned The service life of high the utility model.

Further, the material of insulating sheath 5 is polyethylene, and the insulation performance of insulating sheath 5 can be improved using polyethylene And service life, the size of shell 2 are long 40mm, high 8mm, wide 5mm, above-mentioned size is arranged can effectively will be inside shell 2 Components be fixed in shell 2.

Further, the material of shell 23 is ABS plastic, and the insulation of the utility model not only can be improved using ABS plastic Performance, while the mechanical damage that the utility model is subjected to can also be effectively reduced.

Further, the material of protective case 41 is polyethylene, and protective case 41 not only can be improved using polyethylene uses the longevity Life, while insulation performance can be improved, the material of enhancement layer 42 is Clad Steel band, can effectively keep the work shape of tail optical fiber 4 Shape, while preventing tail optical fiber 4 from damaging because of external mechanical damage, the material of cable core filler 46 is silicone oil cream, can using silicone oil cream Effectively to improve waterproof performance.

The working principle and process for using of the utility model: after the utility model installs, user first checks this reality Whether complete with novel external appearance, confirmation the utility model is in the state that can work normally, and then user is by this reality At the position used needed for novel move to, optical fiber 1 is connected at light source, then shell 2 is placed on to the position for needing to measure Tail optical fiber 4, is then connected at data receiver by place, and during user installs and uses, protective case 41 on tail optical fiber 4 can be with The coefficient of friction in installation process is reduced, improves the installation effectiveness of user, while to can also be improved this practical new for protective case 41 The insulation performance of type prevents electromagnetic interference from causing the utility model data inaccurate, the temperature change at the position for needing to measure When, the contact chamber 221 in detection device 22 can shrink or expand with the variation of temperature, contact the convergent-divergent of chamber 221 Movement will affect the light wave transmissions of fibre core 45, and the change of light wave transmissions can be fed back at data receiver in real time by tail optical fiber 4, be realized Detection function of the utility model to temperature.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (8)

1. a kind of long period fiber-optical grating temperature sensor, including shell (2) and slot (3), it is characterised in that: the shell (2) right side middle position is provided with slot (3), and the inside of the slot (3) is socketed with insulating sheath (5), the insulation The inside of sheath (5) is socketed with tail optical fiber (4), and the left side middle position of the shell (2) is socketed with optical fiber (1).

2. a kind of long period fiber-optical grating temperature sensor according to claim 1, it is characterised in that: the shell (2) Including mounting hole (21), detection device (22), shell (23) and coupler (24), at the inside corner location of the shell (23) It is provided with mounting hole (21), the inside two sides middle position of the shell (23) is provided with coupler (24), the shell (23) detection device (22) are provided at bosom position.

3. a kind of long period fiber-optical grating temperature sensor according to claim 1, it is characterised in that: the tail optical fiber (4) Including protective case (41), enhancement layer (42), central rib (43), waterproof layer (44), fibre core (45) and cable core filler (46), It is provided with enhancement layer (42), is provided at the interior location of the enhancement layer (42) anti-at the interior location of the protective case (41) Water layer (44) is provided with central rib (43), the central rib at the bosom position of the waterproof layer (44) (43) it is evenly provided between waterproof layer (44) fibre core (45), between the central rib (43) and waterproof layer (44) Gap is filled with cable core filler (46).

4. a kind of long period fiber-optical grating temperature sensor according to claim 2, it is characterised in that: the detection device (22) include contact chamber (221), covering (222) and pedestal (223), be provided at the bosom position of the pedestal (223) Covering (222) is socketed with contact chamber (221) at the inner side of the covering (222).

5. a kind of long period fiber-optical grating temperature sensor according to claim 1, it is characterised in that: the optical fiber (1) It is all the same with the material-structure of tail optical fiber (4).

6. a kind of long period fiber-optical grating temperature sensor according to claim 1, it is characterised in that: the insulating sheath (5) material is polyethylene, and the size of the shell (2) is long 40mm, high 8mm, wide 5mm.

7. a kind of long period fiber-optical grating temperature sensor according to claim 2, it is characterised in that: the shell (23) Material be ABS plastic.

8. a kind of long period fiber-optical grating temperature sensor according to claim 3, it is characterised in that: the protective case (41) material is polyethylene, and the material of the enhancement layer (42) is Clad Steel band, and the material of the cable core filler (46) is Silicone oil cream.