CN212275637U - Fiber Bragg grating appearance defect detection and tension testing device - Google Patents
Fiber Bragg grating appearance defect detection and tension testing device Download PDFInfo
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- CN212275637U CN212275637U CN202020958904.6U CN202020958904U CN212275637U CN 212275637 U CN212275637 U CN 212275637U CN 202020958904 U CN202020958904 U CN 202020958904U CN 212275637 U CN212275637 U CN 212275637U
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Abstract
The utility model discloses an optic fibre bragg grating appearance imperfections detects and tensile testing device, include: a machine platform; the first connecting frame is arc-shaped plate-shaped; the lifting mechanism is fixed on the machine table, connected with the first connecting frame and driven to lift; the second connecting frame is of an inverted L-shaped structure, one end of the second connecting frame is fixed on the machine table, and the other end of the second connecting frame extends to the position above the arc-shaped middle part of the first connecting frame; the first clamping mechanism is used for clamping one end of the fiber Bragg grating to be detected; the tension testing assembly is fixed on the machine table, is positioned below the arc-shaped middle part of the first connecting frame, and is used for clamping the other end of the optical fiber Bragg grating to be detected and detecting the tension of the optical fiber Bragg grating; the electronic microscope assembly is used for shooting a microscopic image of the surface of the fiber Bragg grating to be detected; the display component is connected with the electron microscope component and used for displaying the shot real-time image, the scheme is reliable to implement, and the appearance defect detection and the tension test of the optical fiber can be completed simultaneously.
Description
Technical Field
The utility model belongs to the technical field of detection device technique and specifically relates to an optic fibre bragg grating appearance imperfections detects and tensile testing arrangement.
Background
Fiber Bragg Gratings (FBGs) are optical passive devices widely used in the field of optical fiber communications, which are all-fiber devices of gratings periodically distributed in a spatial phase formed in a section of a fiber core of an optical fiber by lithography or other methods, can reflect light with a wavelength satisfying the bragg reflection condition, are widely applied to the field of optoelectronic processing such as optical fiber filters, optical fiber sensors and the like, and have an immeasurable effect in the field of transmitting optical information and the like, but if the grating region has an appearance defect or insufficient mechanical properties, the optical wave is deformed or interrupted in the transmission process, or the grating is damaged by local overheating; therefore, the appearance defect detection and the tension detection of the manufactured optical fiber Bragg grating are necessary.
At present, a stereoscopic microscope or an electron microscope is a commonly used method for detecting the appearance of the fiber Bragg grating; for a stereoscopic microscope, the optical fiber wire needs to be held by hands, and observation is carried out by human eyes under the stereoscopic microscope, the testing method is low in speed, large in damage to eyes of people who detect for a long time, and easy to misjudge; for the detection by an electron microscope, although dirty spots and scratches can be observed through a display screen, the optical fiber still needs to be clamped by hands or other tools and moved and observed region by region, 360-degree annular observation is difficult to be carried out on the cylindrical fine optical fiber, a visual blind area exists, and the detection speed is slow.
In addition, currently, for the tension test of the fiber bragg grating, a tension machine is generally used to clamp and fix the two ends of the optical fiber, and the tension machine is provided with tension parameters, and the motors at the two ends are pulled apart in opposite directions according to the set parameters. However, the tension test is an independent test link and cannot be performed simultaneously with the detection link of the appearance defects, the time of each tension test in mass production can be accumulated in a large amount, the production efficiency is difficult to improve, and the purchased tension machine is expensive.
Disclosure of Invention
To the condition of prior art, the utility model aims to provide a reasonable in design, low cost, it is fast to detect, and is efficient, can accomplish simultaneously that the appearance defect detects and tensile test's fiber Bragg grating appearance defect detects and tensile test device.
In order to realize the technical purpose, the utility model adopts the technical scheme that:
an optical fiber Bragg grating appearance defect detection and tensile force testing device comprises:
a machine platform;
the first connecting frame is of an arc-shaped plate-shaped structure and is arranged above the machine platform in a lifting manner;
the lifting mechanism is fixed on the machine table, is connected with the first connecting frame and drives the first connecting frame to lift;
the second connecting frame is of an inverted L-shaped structure, one end of the second connecting frame is fixed on the machine table, and the other end of the second connecting frame extends to the position above the arc-shaped middle part of the first connecting frame;
the first clamping mechanism is fixed at the other end of the second connecting frame and is used for clamping one end of the fiber Bragg grating to be detected;
the tension testing component is fixed on the machine table, positioned below the arc-shaped middle part of the first connecting frame, and used for clamping the other end of the fiber Bragg grating to be detected and detecting tension of the fiber Bragg grating, wherein the fiber Bragg grating to be detected is clamped between the first clamping mechanism and the tension testing component and penetrates through the arc-shaped middle part of the first connecting frame;
the electronic microscope component comprises a plurality of electronic microscope units which are connected to the upper end face of the first connecting frame in an annular array mode, and the image pickup ends of the electronic microscope units face the fiber Bragg grating to be detected and penetrate through the middle of the first connecting frame and are used for picking up microscopic images of the surface of the fiber Bragg grating to be detected;
and the display component is connected with the electron microscope component and presents the real-time image shot by the electron microscope unit.
As a possible implementation manner, further, a plurality of guide sleeves penetrating through the machine table are arranged below the machine table corresponding to the first connecting frame, guide rods corresponding to the guide sleeves in a one-to-one manner are fixedly connected to the lower end face of the first connecting frame, and the lower ends of the guide rods movably penetrate through the corresponding guide sleeves.
As a possible implementation manner, further, the lifting mechanism includes:
the third connecting frame is of an inverted L-shaped structure and is fixed on one side of the first connecting frame, and the L-shaped left-off part of the third connecting frame faces the first connecting frame;
the lifting motor is fixed below the third connecting frame, and the driving end of the lifting motor faces upwards;
one end of the first screw rod is fixedly connected with the driving end of the lifting motor, and the other end of the first screw rod is rotatably connected with the upper end of the third connecting frame;
one side of the first connecting plate is fixedly connected with the first connecting frame, the other side of the first connecting plate is threaded and sleeved on the first screw rod, and the first connecting plate is driven by the lifting motor to lift on the first screw rod to synchronously drive the first connecting frame to lift.
As a preferred alternative, it is preferable that the lifting motor is a stepping motor.
As a preferred alternative, it is preferable that the first clamping mechanism includes:
the first clamping cylinder is fixed on the upper end face of the other end of the second connecting frame, and a clamping area for the fiber Bragg grating to be detected to pass through is formed at the clamping end of the first clamping cylinder;
the second connecting plate is horizontally and fixedly connected to the tail end of the other end of the second connecting frame;
the first guide pulley is rotatably connected to the second connecting plate and is positioned right above the arc-shaped middle part of the first connecting frame;
and the fiber Bragg grating to be detected is wound around the upper side surface of the first guide pulley and is led out downwards to be connected with the tension testing component.
As a preferred alternative, it is preferred that the tension test assembly comprises:
the fourth connecting frame is vertically fixed below the arc-shaped middle part of the first connecting frame;
the fifth connecting frame is connected to one side of the fourth connecting frame in a liftable and liftable sliding manner;
the second guide pulley is rotatably connected to the end face, away from the fourth connecting frame, of the fifth connecting frame and is positioned right below the arc-shaped middle part of the first connecting frame;
the second clamping cylinder is fixedly connected to one end, far away from the arc middle part of the first connecting frame, of the fourth connecting frame, and the fiber Bragg grating to be detected is wound by the lower side surface of the second guide pulley and is transversely led out to penetrate through the clamping end of the second clamping cylinder;
the sixth connecting frame is of a U-shaped structure, is fixed on the machine table and is positioned below the fifth connecting frame;
the translation motor is horizontally connected in the U-shaped structure of the sixth connecting frame through a second screw rod;
the third connecting plate is vertically fixed on the translation motor and translates along with the translation motor, and an inclined surface structure is formed on the upper end surface of the third connecting plate;
the guide wheel is rotatably connected to the lower end of the fifth connecting frame and is used for abutting against the inclined surface structure of the upper end surface of the third connecting plate, and the translation motor drives the third connecting plate to translate so that the fifth connecting frame descends under the action of dead weight or ascends under the action of the inclined surface structure of the third connecting plate;
and a weight hook is further arranged on the fifth connecting frame.
As a preferred alternative, the translation motor is preferably a stepper motor.
As a preferred alternative, it is preferable that the electron microscope assembly includes three electron microscope units, and further includes background plates corresponding to the three electron microscope units one by one; the three electron microscope units are spaced to form an included angle of 120 degrees, and the background plate is arranged on one side opposite to the corresponding electron microscope unit and fixedly connected with the first connecting frame.
As a preferred alternative, it is preferable that the electron microscope units are connected to fourth connecting plates on one sides, and one side of the fourth connecting plate is rotatably connected to the first connecting frame through a connecting shaft with a bearing at an end portion.
As a possible implementation manner, further, the display assembly comprises display units corresponding to the electron microscope units one by one, and the display units are connected with the electron microscope units through data connecting lines with HDMI connectors.
When the device is operated and used, the two ends of the fiber Bragg grating are respectively clamped on the first clamping mechanism and the tension testing component, so that the whole fiber Bragg grating to be detected is erected at the centers of the three electronic microscope positions, the focusing and zooming of the three electronic microscope cameras are properly adjusted, and the side wall of the optical fiber is divided into three parts which are respectively and clearly imaged and displayed on the corresponding display units; during detection, the step motor (translation motor) on the sixth connecting frame is controlled to rotate to drive the metal slope of the third connecting plate to move along the X axis, so that the support of the tension testing assembly (the fifth connecting frame and the second guide pulley arranged on the fifth connecting frame) is suspended, the tension testing assembly falls under the action of gravity under the guiding action of the guide pulley, and the optical fiber is tensioned and stressed; then, the lifting motor is controlled to rotate to drive the first connecting frame to lift, so that the three electron microscope cameras on the first connecting frame simultaneously move on the Z axis at equal intervals, and the appearance of a section of area of the fiber Bragg grating is sequentially subjected to defect detection; so far, the appearance defect and the tension test of one optical fiber Bragg grating are simultaneously executed; and after one fiber Bragg grating is finished, loosening the clamp to replace the other fiber Bragg grating, and carrying out the same operation for continuous detection.
Adopt foretell technical scheme, compared with the prior art, the utility model, its beneficial effect who has is: the appearance defect detection of the utility model adopts a non-contact mode, can rapidly and clearly detect the appearance quality of the fiber bragg grating on line, effectively avoids misjudgment caused by shaking in the detection process, and effectively relieves the eye fatigue of detection personnel; the device has the advantages of reasonable design, simple structure, low cost, high detection speed and high efficiency, and can be widely applied to the field of batch detection of appearance defect detection and tension test of the fiber Bragg grating.
Drawings
The scheme of the invention is further explained by combining the attached drawings and the detailed embodiment:
FIG. 1 is one of the schematic implementation structures of the solution of the present invention;
FIG. 2 is an enlarged view of a portion of the structure at A in FIG. 1;
FIG. 3 is an enlarged view of a portion of the structure at B in FIG. 1;
fig. 4 is the schematic diagram of the principle of connection of the simple cooperation that the lifting motor drives the first connecting frame to lift.
Detailed Description
As shown in fig. 1 to fig. 4, the present invention provides an apparatus for detecting appearance defects and testing tension of fiber bragg grating 9, which includes:
a machine table 1;
the first connecting frame 2 is of an arc-shaped plate-shaped structure and is arranged above the machine table 1 in a lifting manner;
the lifting mechanism 3 is fixed on the machine table 1, is connected with the first connecting frame 2 and drives the first connecting frame 2 to lift;
the second connecting frame 5 is of an inverted L-shaped structure, one end of the second connecting frame is fixed on the machine table 1, and the other end of the second connecting frame extends to the position above the arc-shaped middle part of the first connecting frame 2;
the first clamping mechanism 6 is fixed at the other end of the second connecting frame 5 and is used for clamping one end of the fiber Bragg grating 9 to be detected;
the tension testing component 7 is fixed on the machine table 1, is positioned below the arc-shaped middle part of the first connecting frame 2, and is used for clamping the other end of the fiber bragg grating 9 to be detected and detecting tension of the fiber bragg grating 9, wherein the fiber bragg grating 9 to be detected is clamped between the first clamping mechanism 6 and the tension testing component 7 and penetrates through the arc-shaped middle part of the first connecting frame 2;
the electron microscope component comprises a plurality of electron microscope units 4 which are connected to the upper end face of the first connecting frame 2 in an annular array mode, and the image pickup ends of the electron microscope units 4 face the fiber bragg grating 9 to be detected and penetrate through the middle of the first connecting frame 2 and are used for picking up microscopic images of the surface of the fiber bragg grating 9 to be detected;
and a display unit (not shown) connected to the electron microscope unit and presenting a real-time image taken by the electron microscope unit 4.
As a possible implementation manner, further, a plurality of guide sleeves 11 penetrating through the machine table 1 are arranged below the machine table 1 corresponding to the first connecting frame 2, guide rods 21 corresponding to the guide sleeves 11 one to one are vertically and fixedly connected to the lower end surface of the first connecting frame 2, and the lower ends of the guide rods 21 movably penetrate through the corresponding guide sleeves 11.
As a possible implementation, further, the lifting mechanism 3 includes:
a third connecting frame 31, which is in an inverted L-shaped structure and fixed at one side of the first connecting frame 2, wherein the L-shaped left-off part faces the first connecting frame 2;
the lifting motor 32 is fixed below the third connecting frame 31, and the driving end of the lifting motor is upward, as a preferred embodiment, preferably, the lifting motor 32 is a stepping motor;
one end of the first screw rod 33 is fixedly connected with the driving end of the lifting motor 32, and the other end of the first screw rod is rotatably connected with the upper end of the third connecting frame 31;
one side of the first connecting plate 34 is fixedly connected with the first connecting frame 2, the other side of the first connecting plate is threaded and sleeved on the first screw rod 33, and the lifting motor 32 drives the first connecting plate 34 to lift on the first screw rod 33 to synchronously drive the first connecting frame 2 to lift.
In addition, as a preferred alternative, it is preferable that the first clamping mechanism 6 includes:
the first clamping cylinder 6 is fixed on the upper end face of the other end of the second connecting frame 5, and a clamping area for the fiber Bragg grating 9 to be detected to pass through is formed at the clamping end of the first clamping cylinder;
a second connecting plate 51 horizontally and fixedly connected to the end of the other end of the second connecting frame 5;
a first guide pulley 52 rotatably connected to the second connecting plate 51 and positioned right above the arc-shaped middle part of the first connecting frame 2;
the fiber bragg grating 9 to be detected is wound by the upper side surface of the first guide pulley 52 and led out downwards to be connected with the tension testing component 7.
Furthermore, as a preferred alternative, it is preferred that the tensile testing assembly 7 comprises:
a fourth link frame 71 vertically fixed below the arc-shaped middle portion of the first link frame 2;
a fifth connecting frame 72, which is connected to one side of the fourth connecting frame 71 in a sliding manner in a liftable manner, the fourth connecting frame 71 can be provided with a sliding rail 711, and the fifth connecting frame 72 can be provided with a sliding groove 721 matched with the fifth connecting frame 72;
the second guide pulley 73 is rotatably connected to the end face, away from the fourth connecting frame 71, of the fifth connecting frame 72 and is positioned right below the arc-shaped middle part of the first connecting frame 2;
the second clamping cylinder 74 is fixedly connected to one end, far away from the arc middle part of the first connecting frame 2, of the fourth connecting frame 71, and the fiber bragg grating 9 to be detected is wound by the lower side surface of the second guide pulley 73 and is transversely led out to penetrate through the clamping end of the second clamping cylinder 74;
a sixth connecting frame 75 which is a U-shaped structure and is fixed on the machine 1 and located below the fifth connecting frame 72;
the translation motor 77 is horizontally connected in the U-shaped structure of the sixth connecting frame 75 through a second screw rod, and as a preferred optional embodiment, preferably, the translation motor 77 is a stepping motor;
the third connecting plate 78 is vertically fixed on the translation motor 77 and translates along with the translation motor 77, and an inclined surface structure is formed on the upper end surface of the third connecting plate;
the guide wheel 722 is rotatably connected to the lower end of the fifth connecting frame 72 and is used for abutting against the inclined surface structure of the upper end surface of the third connecting plate 78, and the translation motor 77 drives the third connecting plate 78 to translate, so that the fifth connecting frame 72 descends under the self weight or ascends under the pushing of the inclined surface structure of the third connecting plate 78;
a weight hook (not shown) is further arranged on the fifth connecting frame 72.
As a preferred alternative, it is preferable that the electron microscope assembly includes three electron microscope units 4, and it further includes a background plate 8 corresponding to the three electron microscope units 4 one by one (the background plate is used for being of a solid color structure, so that no other interference image appears when the electron microscope unit 4 takes an image); the three electron microscope units 4 form included angles of 120 degrees at intervals, and the background plate 8 is arranged on one side opposite to the corresponding electron microscope unit 4 and fixedly connected with the first connecting frame 2.
As a preferred alternative, it is preferable that the electron microscope unit 4 is connected to the fourth connecting plates 41 at one side, and one side of the fourth connecting plate 41 is rotatably connected to the first connecting frame 2 through a connecting shaft 42 with a bearing at an end portion.
As a possible embodiment, further, the display assembly includes display units (not shown) corresponding to the electron microscope units 4 one to one, and the display units are connected to the electron microscope units 4 through data connection lines with HDMI connectors.
When the device is used, the two ends of the optical fiber Bragg grating 9 are respectively clamped on the first clamping mechanism 6 and the tension testing component 7, so that the whole optical fiber Bragg grating 9 to be detected is erected in the centers of the three electronic microscope positions, the focusing and zooming of the three electronic microscope cameras are properly adjusted, and the side wall of the optical fiber is divided into three parts which are respectively and clearly imaged and displayed on the corresponding display units; during detection, the stepping motor (the translation motor 77) on the sixth connecting frame 75 is controlled to rotate to drive the metal slope of the third connecting plate 78 to move along the X axis, so that the support of the tension testing component 7 (the fifth connecting frame 72 and the second guide pulley 73 arranged on the fifth connecting frame 72) is suspended, and the tension testing component falls under the action of gravity under the guiding action of the guide wheel 722, so that the fiber Bragg grating 9 is tensioned and stressed; then, the lifting motor 32 is controlled to rotate to drive the first connecting frame 2 to lift, so that the three electron microscope cameras on the first connecting frame 2 simultaneously move on the Z axis at equal intervals, and the appearance of a section of area of the fiber Bragg grating 9 is sequentially subjected to defect detection; so far, the appearance defect and the tension test of one fiber Bragg grating 9 are simultaneously executed; after one fiber Bragg grating 9 is finished, the clamp is loosened to replace the other fiber Bragg grating 9, and the same operation is carried out for continuous detection.
The above is the embodiment of the present invention, and to the ordinary skilled in the art, according to the teaching of the present invention, the equal changes, modifications, replacements and variations of the claims should all belong to the scope of the present invention without departing from the principle and spirit of the present invention.
Claims (10)
1. The utility model provides a fiber Bragg grating appearance imperfections detects and tensile testing arrangement which characterized in that: it includes:
a machine platform;
the first connecting frame is of an arc-shaped plate-shaped structure and is arranged above the machine platform in a lifting manner;
the lifting mechanism is fixed on the machine table, is connected with the first connecting frame and drives the first connecting frame to lift;
the second connecting frame is of an inverted L-shaped structure, one end of the second connecting frame is fixed on the machine table, and the other end of the second connecting frame extends to the position above the arc-shaped middle part of the first connecting frame;
the first clamping mechanism is fixed at the other end of the second connecting frame and is used for clamping one end of the fiber Bragg grating to be detected;
the tension testing component is fixed on the machine table, positioned below the arc-shaped middle part of the first connecting frame, and used for clamping the other end of the fiber Bragg grating to be detected and detecting tension of the fiber Bragg grating, wherein the fiber Bragg grating to be detected is clamped between the first clamping mechanism and the tension testing component and penetrates through the arc-shaped middle part of the first connecting frame;
the electronic microscope component comprises a plurality of electronic microscope units which are connected to the upper end face of the first connecting frame in an annular array mode, and the image pickup ends of the electronic microscope units face the fiber Bragg grating to be detected and penetrate through the middle of the first connecting frame and are used for picking up microscopic images of the surface of the fiber Bragg grating to be detected;
and the display component is connected with the electron microscope component and presents the real-time image shot by the electron microscope unit.
2. The apparatus for detecting the appearance defect of the fiber Bragg grating and testing the tensile force according to claim 1, wherein: the machine table is provided with a plurality of guide sleeves penetrating through the machine table below corresponding to the first connecting frame, the lower end face of the first connecting frame is vertically and fixedly connected with guide rods in one-to-one correspondence with the guide sleeves, and the lower ends of the guide rods movably penetrate through the corresponding guide sleeves.
3. The apparatus for detecting the appearance defect of the fiber Bragg grating and testing the tensile force according to claim 1, wherein: the lifting mechanism comprises:
the third connecting frame is of an inverted L-shaped structure and is fixed on one side of the first connecting frame, and the L-shaped left-off part of the third connecting frame faces the first connecting frame;
the lifting motor is fixed below the third connecting frame, and the driving end of the lifting motor faces upwards;
one end of the first screw rod is fixedly connected with the driving end of the lifting motor, and the other end of the first screw rod is rotatably connected with the upper end of the third connecting frame;
one side of the first connecting plate is fixedly connected with the first connecting frame, the other side of the first connecting plate is threaded and sleeved on the first screw rod, and the first connecting plate is driven by the lifting motor to lift on the first screw rod to synchronously drive the first connecting frame to lift.
4. The apparatus for detecting the appearance defect of the fiber Bragg grating and testing the tensile force according to claim 3, wherein: the first clamping mechanism comprises:
the first clamping cylinder is fixed on the upper end face of the other end of the second connecting frame, and a clamping area for the fiber Bragg grating to be detected to pass through is formed at the clamping end of the first clamping cylinder;
the second connecting plate is horizontally and fixedly connected to the tail end of the other end of the second connecting frame;
the first guide pulley is rotatably connected to the second connecting plate and is positioned right above the arc-shaped middle part of the first connecting frame;
and the fiber Bragg grating to be detected is wound around the upper side surface of the first guide pulley and is led out downwards to be connected with the tension testing component.
5. The apparatus for detecting the appearance defect of the fiber Bragg grating and testing the tensile force according to claim 4, wherein: the tensile test assembly comprises:
the fourth connecting frame is vertically fixed below the arc-shaped middle part of the first connecting frame;
the fifth connecting frame is connected to one side of the fourth connecting frame in a liftable and liftable sliding manner;
the second guide pulley is rotatably connected to the end face, away from the fourth connecting frame, of the fifth connecting frame and is positioned right below the arc-shaped middle part of the first connecting frame;
the second clamping cylinder is fixedly connected to one end, far away from the arc middle part of the first connecting frame, of the fourth connecting frame, and the fiber Bragg grating to be detected is wound by the lower side surface of the second guide pulley and is transversely led out to penetrate through the clamping end of the second clamping cylinder;
the sixth connecting frame is of a U-shaped structure, is fixed on the machine table and is positioned below the fifth connecting frame;
the translation motor is horizontally connected in the U-shaped structure of the sixth connecting frame through a second screw rod;
the third connecting plate is vertically fixed on the translation motor and translates along with the translation motor, and an inclined surface structure is formed on the upper end surface of the third connecting plate;
the guide wheel is rotatably connected to the lower end of the fifth connecting frame and is used for abutting against the inclined surface structure of the upper end surface of the third connecting plate, and the translation motor drives the third connecting plate to translate so that the fifth connecting frame descends under the action of dead weight or ascends under the action of the inclined surface structure of the third connecting plate;
and a weight hook is further arranged on the fifth connecting frame.
6. The apparatus for detecting appearance defects of fiber Bragg gratings and testing tension of the same as claimed in claim 5, wherein: the electron microscope component comprises three electron microscope units and further comprises background plates which correspond to the three electron microscope units one by one; the three electron microscope units are spaced to form an included angle of 120 degrees, and the background plate is arranged on one side opposite to the corresponding electron microscope unit and fixedly connected with the first connecting frame.
7. The apparatus for detecting the appearance defect of the fiber Bragg grating and testing the tensile force according to claim 6, wherein: and one side of the fourth connecting plate is rotatably connected with the first connecting frame through a connecting shaft with a bearing at the end part.
8. The apparatus for detecting the appearance defect of the fiber Bragg grating and testing the tensile force according to claim 3, wherein: the lifting motor is a stepping motor.
9. The apparatus for detecting the appearance defect of the fiber Bragg grating and testing the tensile force according to claim 1, wherein: the display assembly comprises display units which correspond to the electron microscope units one by one, and the display units are connected with the electron microscope units through data connecting lines with HDMI connectors.
10. The apparatus for detecting appearance defects of fiber Bragg gratings and testing tension of the same as claimed in claim 5, wherein: the translation motor is a stepping motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202020958904.6U CN212275637U (en) | 2020-05-29 | 2020-05-29 | Fiber Bragg grating appearance defect detection and tension testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020958904.6U CN212275637U (en) | 2020-05-29 | 2020-05-29 | Fiber Bragg grating appearance defect detection and tension testing device |
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| CN212275637U true CN212275637U (en) | 2021-01-01 |
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| CN202020958904.6U Active CN212275637U (en) | 2020-05-29 | 2020-05-29 | Fiber Bragg grating appearance defect detection and tension testing device |
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