CN213632153U - Optical fiber sensor difference compensation system - Google Patents

Abstract

The utility model discloses an optical fiber sensor difference compensation system, which comprises an optical fiber sensor, a compensation unit and a detection unit which are respectively connected with the optical fiber sensor, and a control and processing unit; the optical fiber sensor comprises an optical fiber, a light source and light sensation; the compensation unit is connected with a light source of the optical fiber sensor to compensate the light source; the detection unit is connected with the light sense of the optical fiber sensor and used for receiving the light sense output value and transmitting the light sense output value to the control and processing unit; the control and processing unit is used for comparing the light sensation output value with a standard output value, and controlling the compensation unit to adjust and compensate the light source of the optical fiber sensor according to the comparison result so as to keep the light sensation output value consistent with the standard output value. The utility model discloses difference in the production process can be avoided to fiber sensor difference compensation system and method and the poor problem of uniformity that leads to final finished product can improve the yield of product.

Description

Optical fiber sensor difference compensation system

Technical Field

The utility model relates to a sensor technical field especially relates to an optical fiber sensor difference compensation system.

Background

The optical fiber sensor technology is a brand-new sensing technology which appears along with the development of optical fiber and optical fiber communication technology, and the optical fiber sensing technology is rapidly developed along with the rapid development of optical fiber manufacturing technology and the deep research of optical fiber materials. Compared with the traditional sensor, the light ray sensor has a series of unique advantages of high sensitivity, strong anti-electromagnetic interference capability, corrosion resistance, explosion resistance, simple structure, small volume, light weight and the like, thereby having excellent application prospect and being widely applied to industries such as aviation, spaceflight, navigation, nuclear industry, electric power, medical treatment, petrifaction, mine, metallurgy and the like.

The basic principle of the optical fiber sensor is that light emitted by a light source is transmitted through an optical fiber, the light intensity of the transmitted light in the optical fiber is changed due to the physical quantity to be detected, a detector receives the light, and the physical quantity to be detected is measured by detecting the change of the light intensity.

However, since the optical fiber sensor uses light intensity as a carrier of information, it is inevitably affected by fluctuations in power of a light source, variations in transmission loss of an optical fiber, and the like, and therefore, to obtain a measurement with high accuracy and high stability, it is necessary to take effective measures to overcome such influences.

Meanwhile, the optical fiber sensor also generates certain difference in the production process, namely, the loss generated by the optical path from the light source to the detector is inconsistent, the difference causes that the output power of the light source is the same, and the output of the detector end is different through the same physical quantity to be measured. The output of the detector is different, which is inconvenient for circuit processing, data acquisition and algorithm calculation, so that the product quality, consistency and stability are different, and further risks are easily brought.

The above background disclosure is only provided to aid in understanding the inventive concepts and solutions of the present invention, and it does not necessarily pertain to the prior art of this patent application, and it should not be used to assess the novelty and inventive aspects of this application without explicit evidence that such contents are disclosed at the filing date of this patent application.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an optical fiber sensor difference compensation system and method to solve at least one kind among the above-mentioned background art problem.

In order to achieve the above object, the embodiment of the present invention provides a technical solution that:

a difference compensation system of an optical fiber sensor comprises the optical fiber sensor, a compensation unit and a detection unit which are respectively connected with the optical fiber sensor, and a control and processing unit; the optical fiber sensor comprises an optical fiber, a light source and light sensation; the compensation unit is connected with a light source of the optical fiber sensor to compensate the light source; the detection unit is connected with the light sense of the optical fiber sensor and used for receiving the light sense output value and transmitting the light sense output value to the control and processing unit; the control and processing unit is used for comparing the light sensation output value with a standard output value, and controlling the compensation unit to adjust and compensate the light source of the optical fiber sensor according to the comparison result so as to keep the light sensation output value consistent with the standard output value.

In some embodiments, the compensation unit comprises a light source driving circuit and a light source power adjusting circuit connected with the light source driving circuit; the light source driving circuit is connected with a light source of the optical fiber sensor; the light source power adjusting circuit is connected with the control and processing unit.

In some embodiments, the detection unit includes a light sensing detection circuit and an analog-to-digital converter connected to the light sensing detection circuit; the light sensation detection circuit is connected with the light sensation of the optical fiber sensor, receives the output of the light sensation, and transmits the light sensation output to the control and processing unit after the light sensation is processed by the analog-to-digital converter.

In some embodiments, the control and processing unit is further connected to a storage unit, the standard output value is stored in the storage unit in advance, the control and processing unit reads the standard output value in the storage unit after receiving the light sensation output value, compares the light sensation output value with the standard output value, and outputs a control instruction according to a comparison result to control the compensation unit.

In some embodiments, the control and processing unit is further connected with a display unit, and the light sensing output value is displayed in real time through the display unit.

In some embodiments, the optical fiber sensor includes a deformation sensing layer, an optical fiber disposed on the deformation sensing layer, a light source, and a light sensation.

In some embodiments, a plurality of mesh openings are disposed on the deformation sensing layer of the fiber optic sensor; the inner surface of the deformation induction layer is provided with a concave space in a concave mode, and convex ribs are arranged in the concave space.

In some embodiments, the outer surface of the deformation sensing layer is provided with a sensitivity enhancing structure, the sensitivity enhancing structure comprises a plurality of protruding points arranged at intervals, and the protruding points are arranged on the outer surface of the deformation sensing layer at positions corresponding to the protruding ribs.

The utility model discloses technical scheme's beneficial effect is:

compared with the prior art, the utility model discloses difference in the production process can be avoided to fiber sensor difference compensation system and method and the poor problem of final finished product's uniformity leads to, can improve the yield of product.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic block diagram of a fiber sensor difference compensation system according to an embodiment of the present invention.

Fig. 2 is a schematic block diagram of a fiber sensor differential compensation system according to another embodiment of the present invention.

Fig. 3 is a schematic perspective view of an optical fiber sensor difference compensation system according to an embodiment of the present invention.

Fig. 4 is a schematic perspective view of the embodiment of fig. 3 without the optical fiber.

Fig. 5 is a perspective view of the embodiment of fig. 3 from another perspective.

Fig. 6 is a schematic diagram of another fiber optic sensor of a fiber optic sensor differential compensation system according to the present invention.

Fig. 7 is a schematic perspective view of the optical fiber sensor of the embodiment of fig. 6.

Fig. 8 is an exploded view of the fiber sensor of the embodiment of fig. 7.

Fig. 9 is a perspective view from another perspective of the fiber sensor of the embodiment of fig. 7.

Fig. 10 is a sectional view taken along the line a-a in fig. 9.

Fig. 11 is a schematic diagram of the bumps and the ribs of the optical fiber sensor difference compensation system according to the embodiment of the present invention.

Fig. 12 is a flowchart illustration of a method for using a fiber sensor difference compensation system according to an embodiment of the present invention.

Detailed Description

In order to make the technical problem, technical scheme and beneficial effect that the embodiment of the present invention will solve more clearly understand, the following combines the drawings and embodiment, and goes forward the further detailed description of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. The connection may be for fixation or for circuit connection.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The embodiment of the utility model provides a pair of optical fiber sensor difference compensation system compares through optical fiber sensor's light sense output value and standard output value, produces control command according to the comparative result and controls optical fiber sensor's light source to change light sense output value, make light sense output value and standard output value keep unanimous, ensure that uniformity, the stability of optical fiber sensor product obtain improving, and then improve optical fiber sensor's yield.

Referring to fig. 1-3, an optical fiber sensor difference compensation system according to an embodiment of the present invention includes an optical fiber sensor, a compensation unit and a detection unit respectively connected to the optical fiber sensor, and a control and processing unit; the optical fiber sensor comprises an optical fiber, a light source and light sensation; the compensation unit is connected with a light source of the optical fiber sensor to compensate the light source; the detection unit is connected with the light sense of the optical fiber sensor and used for receiving the light sense output value and transmitting the light sense output value to the control and processing unit; the control and processing unit is used for comparing the light sensation output value with a standard output value, and controlling the compensation unit to adjust and compensate the light source of the optical fiber sensor according to the comparison result so as to keep the light sensation output value consistent with the standard output value.

Specifically, referring to fig. 1, the compensation unit includes a light source driving circuit and a light source power adjusting circuit connected to the light source driving circuit; the light source driving circuit is connected with a light source of the optical fiber sensor; the light source power adjusting circuit is connected with the control and processing unit.

The detection unit comprises a light sensing detection circuit and an analog-to-digital converter connected with the light sensing detection circuit; the light sensation detection circuit is connected with the light sensation of the optical fiber sensor, receives the output of the light sensation, and transmits the light sensation output to the control and processing unit after the light sensation is processed by the analog-to-digital converter.

In some embodiments, the control and processing unit is further connected to a storage unit, the standard output value is stored in the storage unit in advance, the control and processing unit reads the standard output value in the storage unit after receiving the light sensation output value, compares the light sensation output value with the standard output value, and outputs a control instruction according to a comparison result to control the compensation unit. The storage unit may be a rom (read Only memory) program memory, a ram (random Access memory) random Access memory, a Flash memory, etc., and is not particularly limited in the embodiments of the present invention.

In some embodiments, the control and processing unit is further connected with a display unit, and the light sensation output value is displayed in real time through the display unit.

Referring to fig. 2, as another embodiment of the optical fiber sensor difference compensation system, the optical fiber sensor difference compensation system detects whether the optical fiber sensors have differences through an external detection module, and if the optical fiber sensors have differences, the optical fiber sensor difference compensation system interactively sends a control command to a control and processing unit through an interactive port, and the control and processing unit controls the compensation unit to compensate the light source. Specifically, the optical fiber sensor difference compensation system comprises an external detection module, the control and processing unit is connected with an interaction port, and the external detection module comprises an external interaction port, an external processor and a display unit; the light sensation output value of the optical fiber sensor is transmitted to the external detection module through the interaction port, the external detection module compares the light sensation output value with the standard output value through the external processor, a control instruction is sent to the control and processing unit through the external interaction port according to the comparison result, and the control and processing unit controls the compensation unit according to the control instruction.

Specifically, in the production process of the optical fiber sensor, a standard light sensation output value of the optical fiber sensor is preset, the control and processing unit transmits the light sensation output value to an external processor of the external detection module through an interaction port and an external interaction port of the external detection module, the external processor compares the light sensation output value with the preset standard output value, generates a control instruction according to a comparison result and transmits the control instruction to the control and processing unit through the external interaction port, and the control and processing unit controls the light source adjusting circuit according to the control instruction to adjust the light emitting power of the light source, so that the light sensation output value is changed and adjusted, the light sensation output value is kept equal to the standard output value, and the consistency of the optical fiber sensor product is improved. In some embodiments, the display is used for displaying the related information such as the light sensation output value in real time.

Because a certain difference is generated in the production process of the sensor, namely the loss generated by the light path from the light source to the light sensation is inconsistent, the difference is that the output power of the light source is the same, but the output of the light sensation is different. The light sensation output is different, which is inconvenient for circuit processing, data acquisition and algorithm calculation, and brings risks to product quality, consistency and stability. The light source power adjusting circuit adjusts the current of the light source to change the luminous power of the light source, so that the yield of product quality can be improved. Specifically, the adjustment can be performed by: assembling a plurality of optical fiber sensors, and determining a standard light sensation output value A (assuming that the standard output value A is in direct proportion to the light source luminous power); the light source is adjusted through the compensation unit, and the light source luminous power of the optical fiber sensor with the light sensation output value larger than A is reduced; and the light source luminous power of the optical fiber sensor with the light sensation output value smaller than A is increased. Thereby obtaining consistent optical fiber sensor products and improving the yield of the optical fiber sensor.

Referring to fig. 3 to 5, the optical fiber sensor includes a deformation sensing layer 10 and an optical fiber 11; specifically, a plurality of meshes 101 are arranged on the deformation sensing layer 10; wherein, the inner surface of the deformation induction layer 10 is concavely provided with a concave space 102, and a convex rib 103 is arranged in the concave space 102; the outer surface of the deformation induction layer 10 is provided with a sensitization structure, the sensitization structure comprises a plurality of salient points 105 which are arranged at intervals, and the salient points 105 are arranged on the outer surface of the deformation induction layer 10 and correspond to the positions of the convex ribs 103; the optical fiber 11 is placed on the convex rib 103 in the concave space in a bending shape, and two ends of the optical fiber 11 are fixed and extend outwards through the wire grooves 104 arranged on the inner side of the deformation induction layer 10. It should be understood that the sensitization structure is not limited to the structure using the bumps, and other structures for increasing the sensitivity of the sensor are also possible, which is not described in the embodiment of the present invention by way of example.

Through set up plural mesh 101 on deformation response layer 10 for deformation response layer 10 wholly constitutes a network structure, simultaneously, through setting up concave type space 102 at deformation response layer 10 internal surface, reduces the thickness of deformation response layer 10, thereby has increased the elasticity of deformation response layer 10, has further promoted optical fiber sensor 100's sensitivity. In addition, by providing the concave space 102 and providing the rib 103 in the concave space 102, the miniaturization design of the optical fiber sensor is facilitated. In this embodiment, the mesh 101 is oval, and it can be understood that, in some embodiments, the mesh 101 may also be in other irregular shapes, which is not particularly limited in the embodiments of the present invention, and no matter what shape is adopted, the present invention is not limited to this, and the mesh belongs to the protection scope of the present invention.

The rib 103 is arranged in a linear strip shape arranged among the plurality of meshes 101, and the cross section of the rib 103 is triangular, so that when the optical fiber 11 is placed on the rib 103, the contact area between the optical fiber 11 and the rib 103 is the smallest, thereby ensuring that when the optical fiber 11 is subjected to external pressure, the pressure per unit area on the optical fiber 11 is the largest, i.e. the sensitivity of the optical fiber sensor is enhanced. In the embodiment of the present invention, the height of the rib 103 is set to have a difference with the depth of the concave space 102, the difference is equal to the diameter of the optical fiber 11, so that the optical fiber 11 can be kept flush with the plane where the inner surface of the sensing layer is located when being placed on the rib 103. It will be appreciated that in some embodiments, the ribs 103 may also be arranged in curved strips arranged between the plurality of mesh openings 101.

The embodiment of the utility model provides an during optical fiber sensor uses the surface subsides of deformation response layer 10 cover has the coating, the coating is flexible material, like cushion etc.. Referring to fig. 8, the cushion 122 is taken as an example for explanation, wherein, assuming that the pressure F is uniformly distributed on the cushion 122, the cushion 122 around the bump 105 will arch to form a gap due to the existence of the bump 105, the pressure in the corresponding area above the gap will be gathered on the bump 105, and the pressure borne by the bump 105 will be greatly increased. By adding the bump structure, the pressure distribution of the deformation sensing layer 10 is changed, the pressure of the intersection point area of the optical fiber 11 and the rib 103 is increased, and the pressure of other areas is reduced. Meanwhile, the convex rib 103 is of a structure with a triangular cross section, so that the area of a contact point of the optical fiber and the convex rib is reduced, the pressure applied to the optical fiber at the contact point is increased, and the sensitivity of the sensor is enhanced.

For convenience of illustration, the embodiment of the present invention is described by taking the case that the deformation sensing layer is square, and it should be noted that the present invention does not limit the shape of the deformation sensing layer, and may be square or any other irregular shape.

Referring to fig. 6-11, a structure of a double sensing layer is shown, as an embodiment of the optical fiber sensor 200 of the present invention, the optical fiber sensor 200 includes two deformation sensing layers 20, 21 and an optical fiber 22; specifically, the deformation sensing layer includes a first deformation sensing layer 20 and a second deformation sensing layer 21; wherein, a plurality of first meshes 201 are arranged on the first deformation sensing layer 20; a concave space 202 is concavely arranged on the inner side of the first deformation sensing layer 20, and the convex rib 203 is arranged in the concave space 202; the outer surface of the first deformation sensing layer 20 is provided with a sensitization structure, the sensitization structure comprises a plurality of salient points 205 arranged at intervals, and the salient points 205 are arranged on the outer surface of the first deformation sensing layer 20 and correspond to the positions of the convex ribs 203. A slot 204 is formed at one end of the inner side of the first deformation sensing layer 20 for fixing the optical fiber 22.

The second deformation sensing layer 21 has the same size as the first deformation sensing layer 20, so as to ensure that the two layers are completely overlapped to form a complete whole after being mounted together. A plurality of second mesh holes 211 are arranged on the second deformation sensing layer 21; a concave space (not shown) is concavely arranged on the inner side of the second deformation sensing layer 21, and the convex rib 213 is arranged in the concave space; the outer surface of the second deformation sensing layer 21 is provided with a sensitivity enhancing structure, the sensitivity enhancing structure comprises a plurality of protruding points 215 arranged at intervals, and the protruding points 215 are arranged on the outer surface of the second deformation sensing layer 21 at positions corresponding to the protruding ribs 213. A wire groove is formed at one end of the inner side of the second deformation sensing layer 21 to fix the optical fiber 22.

The optical fiber 22 is bent in an irregular shape and is installed between the first deformation sensing layer 20 and the second deformation sensing layer 21, and two ends of the optical fiber 22 are fixed through the wire grooves in the first and second deformation sensing layers and extend outwards. In this embodiment, the height of the ribs 203, 213 is set to have a difference from the depth of the concave space, which is equal to one-half of the diameter of the optical fiber, so that the optical fiber can tightly abut against the ribs 203, 213 of the first and second deformation sensing layers and be tightly fixed between the first and second deformation sensing layers 20, 21 when the first and second deformation sensing layers are mounted together.

Referring to fig. 7-11, in the present embodiment, when the first deformation sensing layer 20 and the second deformation sensing layer 21 are assembled and matched together, the protrusions 205 and the ribs 203 on the first deformation sensing layer 20 are staggered with the protrusions 215 and the ribs 213 on the second deformation sensing layer 21; the ribs 203 of the first deformation sensing layer 20 correspond to the holes 211 of the second deformation sensing layer 21, and correspondingly, the holes 201 of the first deformation sensing layer 20 correspond to the ribs 213 of the second deformation sensing layer 21.

Referring to fig. 6, the lighting device further includes a PCB 70, wherein the light source 4 is connected to the PCB through a structural member 500, and the light sensor 60 is connected to the PCB through the structural member 500; in the present embodiment, the optical fiber 22 is a multi-fold bent structure, and is disposed between the first deformation sensing layer 20 and the second deformation sensing layer 21. The first deformation sensing layer 20 and the second deformation sensing layer 21 have the sensitivity enhancing structures on the surfaces contacting with the outside, and the surfaces having the ribs 203, 213 contact with the optical fiber 22 through the ribs 203, 213. When external deformation or pressure acts on the salient points 205 and 215 of the sensitization structure, deformation of the first deformation sensing layer 20 and/or the second deformation sensing layer 21 is caused, deformation is conducted to the optical fiber 22 through the convex ribs 203 and 213 of the first deformation sensing layer 20 and/or the second deformation sensing layer 21, so that the optical fiber 22 generates micro-bending deformation and optical power loss occurs, the optical power loss is detected through the signal detector and converted into an electric signal, and the electric signal is processed to obtain an external change parameter.

Referring to fig. 10, compared to the single-layer sensing layer structure, in the double-layer sensing layer structure, both sides of the optical fiber 22 are configured to contact the ribs 203, 213 at staggered intervals, and the contact points of the optical fiber 22 and the ribs are dense, so that the sensitivity and the test accuracy of the optical fiber sensor are greatly improved.

Referring to fig. 12, as a flowchart of a method when the optical fiber sensor difference compensation system of the present invention performs compensation, the method includes the following steps:

s10, presetting a light sensation standard output value of the optical fiber sensor and storing the light sensation standard output value in a storage unit;

specifically, a plurality of optical fiber sensors are assembled in advance, and the light sensation standard output value is determined according to the light sensation output values of the optical fiber sensors.

S20, receiving the light sensation output value through a detection unit connected with the light sensation of the optical fiber sensor and transmitting the light sensation output value to a control and processing unit;

the detection unit comprises a light sensing detection circuit and an analog-to-digital converter connected with the light sensing detection circuit; the light sensation detection circuit is connected with the light sensation of the optical fiber sensor, receives the output of the light sensation, and transmits the light sensation output to the control and processing unit after the light sensation is processed by the analog-to-digital converter.

And S30, the control and processing unit is used for comparing the light sensation output value with the standard output value, and controlling the compensation unit to adjust and compensate the light source of the optical fiber sensor according to the comparison result so as to keep the light sensation output value consistent with the standard output value.

The compensation unit comprises a light source driving circuit and a light source power adjusting circuit connected with the light source driving circuit; the light source driving circuit is connected with a light source of the optical fiber sensor; the light source power adjusting circuit is connected with the control and processing unit.

It should be noted that, the monitoring method of this embodiment is implemented by using the optical fiber sensor difference compensation system in any of the foregoing embodiments, so that the specific implementation method refers to the description in the foregoing embodiments, and is not described herein again.

The utility model also provides a computer readable storage medium, computer scale storage medium storage have the computer program, and this computer program realizes the optical fiber sensor difference compensation method of above-mentioned embodiment scheme when being carried out by the treater. The storage medium may be implemented by any type of volatile or non-volatile storage device, or combination thereof.

Embodiments of the present invention may comprise or utilize a special purpose or general-purpose computer including computer hardware, as discussed in greater detail below. Embodiments within the scope of the present invention also include physical and other computer-readable media for carrying or storing computer-executable instructions and/or data structures. Such computer-readable media can be any available media that can be accessed by a general purpose or special purpose computer system. The computer-readable medium storing the computer-executable instructions is a physical storage medium. Computer-readable media carrying computer-executable instructions are transmission media. Thus, by way of example, and not limitation, embodiments of the invention can include at least two distinct computer-readable media: physical computer-readable storage media and transmission computer-readable media.

The embodiment of the present application further provides a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement at least the optical fiber sensor difference compensation method described in the foregoing embodiment.

It is to be understood that the foregoing is a more detailed description of the invention, and specific/preferred embodiments thereof are described, and it is not intended that the invention be limited to the specific embodiments disclosed. For those skilled in the art to which the invention pertains, a plurality of alternatives or modifications can be made to the described embodiments without departing from the concept of the invention, and these alternatives or modifications should be considered as belonging to the protection scope of the invention. In the description herein, references to the description of the term "one embodiment," "some embodiments," "preferred embodiments," "an example," "a specific example," or "some examples" or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention.

In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope of the invention as defined by the appended claims.

Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. One of ordinary skill in the art will readily appreciate that the above-disclosed, presently existing or later to be developed, processes, machines, manufacture, compositions of matter, means, methods, or steps, that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or steps.

Claims (8)

1. A fiber optic sensor differential compensation system, characterized by: the device comprises an optical fiber sensor, a compensation unit, a detection unit and a control and processing unit, wherein the compensation unit and the detection unit are respectively connected with the optical fiber sensor; the optical fiber sensor comprises an optical fiber, a light source and light sensation; the compensation unit is connected with a light source of the optical fiber sensor to compensate the light source; the detection unit is connected with the light sense of the optical fiber sensor and used for receiving the light sense output value and transmitting the light sense output value to the control and processing unit; the control and processing unit is used for comparing the light sensation output value with a standard output value, and controlling the compensation unit to adjust and compensate the light source of the optical fiber sensor according to the comparison result so as to keep the light sensation output value consistent with the standard output value.

2. The fiber optic sensor differential compensation system of claim 1, wherein: the compensation unit comprises a light source driving circuit and a light source power adjusting circuit connected with the light source driving circuit; the light source driving circuit is connected with a light source of the optical fiber sensor; the light source power adjusting circuit is connected with the control and processing unit.

3. The fiber optic sensor differential compensation system of claim 2, wherein: the detection unit comprises a light sensing detection circuit and an analog-to-digital converter connected with the light sensing detection circuit; the light sensation detection circuit is connected with the light sensation of the optical fiber sensor, receives the output of the light sensation, and transmits the light sensation output to the control and processing unit after the light sensation is processed by the analog-to-digital converter.

4. The fiber optic sensor differential compensation system of claim 3, wherein: the control and processing unit is also connected with a storage unit, the standard output value is stored in the storage unit in advance, the control and processing unit reads the standard output value in the storage unit after receiving the light sensation output value, compares the light sensation output value with the standard output value, and outputs a control instruction according to a comparison result to control the compensation unit.

5. The fiber optic sensor differential compensation system of claim 4, wherein: the control and processing unit is also connected with a display unit, and the light sensation output value is displayed in real time through the display unit.

6. The fiber optic sensor differential compensation system of claim 5, wherein: the optical fiber sensor comprises a deformation sensing layer, an optical fiber arranged on the deformation sensing layer, a light source and light sensation.

7. The fiber optic sensor disparity compensation system of claim 6, wherein: a plurality of meshes are arranged on the deformation sensing layer of the optical fiber sensor; the inner surface of the deformation induction layer is provided with a concave space in a concave mode, and convex ribs are arranged in the concave space.

8. The fiber optic sensor disparity compensation system of claim 7, wherein: the surface on deformation response layer is provided with the sensitization structure, the sensitization structure includes the bump that a plurality of intervals set up, the bump sets up on deformation response layer surface corresponding to the position department of bead.

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