CN112710336A - Device and method for automatically controlling prestress in optical fiber sensor packaging process - Google Patents
Device and method for automatically controlling prestress in optical fiber sensor packaging process Download PDFInfo
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- CN112710336A CN112710336A CN202011476216.7A CN202011476216A CN112710336A CN 112710336 A CN112710336 A CN 112710336A CN 202011476216 A CN202011476216 A CN 202011476216A CN 112710336 A CN112710336 A CN 112710336A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 142
- 238000012858 packaging process Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000004806 packaging method and process Methods 0.000 claims abstract description 36
- 238000006073 displacement reaction Methods 0.000 claims abstract description 35
- 238000004804 winding Methods 0.000 claims abstract description 25
- 239000000835 fiber Substances 0.000 claims abstract description 23
- 239000002390 adhesive tape Substances 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 8
- 230000003993 interaction Effects 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002040 relaxant effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING 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
- G01D5/00—Mechanical 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
- G01D5/26—Mechanical 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
- G01D5/268—Mechanical 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 using optical fibres
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING 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
- G01D5/00—Mechanical 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
- G01D5/26—Mechanical 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
- G01D5/32—Mechanical 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
- G01D5/34—Mechanical 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
- G01D5/353—Mechanical 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
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
Abstract
An automatic prestress control device and method in an optical fiber sensor packaging process comprises a control module, a displacement module, a tension meter, a fine adjustment module, an optical fiber winding wheel and a base; the fine adjustment module is used for supporting the optical fiber sensor packaging structure, and the optical fiber is not subjected to external force in the vertical direction by adjusting the height of the fine adjustment module; one end of the tail fiber of the optical fiber sensor is wound and fixed on the optical fiber winding wheel, and the other end of the tail fiber of the optical fiber sensor is fixed on the tension meter connecting rod; the tension meter is installed on the displacement module through the supporting piece, moves along with the displacement module in the direction of stretching or loosening the optical fiber, sends the tension value to the control module in real time, and the control module makes a decision to control the displacement of the tension meter by comparing the real-time tension value with a preset tension value. The automatic prestress control device for the packaging process of the optical fiber sensor, which is designed by the invention, can carry out closed-loop control on the prestress of the optical fiber sensor according to the preset value, has the advantages of simple structure, high control precision and reproducible device, and can easily realize batch packaging of the optical fiber sensor.
Description
Technical Field
The invention relates to the field of optical fiber sensor packaging, in particular to an automatic prestress control device and method in an optical fiber sensor packaging process.
Background
When the structure of the optical fiber sensors is packaged, prestress needs to be applied to the optical fibers, so that the optical fiber sensors have good performance when sensing external physical quantity changes. The common optical fiber prestress application method such as a weight hanging method is difficult to accurately control the application force, is easy to be interfered by environmental change factors, cannot ensure the performance consistency of optical fiber sensor products, has low automation degree, and cannot carry out rapid batch production.
Disclosure of Invention
The invention aims to provide an automatic prestress control device in an optical fiber sensor packaging process, which is used for realizing the accurate control of prestress applied to an optical fiber in the optical fiber sensor packaging process, simultaneously reducing the complexity of a system, facilitating the copying and being used for the mass packaging production of the optical fiber sensor.
In order to achieve the purpose, the invention is realized by the following technical scheme: an automatic prestress control device in the packaging process of an optical fiber sensor comprises a control module, a displacement module, a support piece, a tension meter, a connecting rod, a fine adjustment module, an optical fiber sensor packaging structure, an optical fiber winding wheel and a base;
the displacement module, the fine adjustment module and the optical fiber winding wheel are fixedly arranged on the base;
the fine adjustment module is used for supporting the optical fiber sensor packaging structure, and the optical fiber sensor is free from external force in the vertical direction by adjusting the height of the fine adjustment module;
one end of the tail fiber of the optical fiber sensor is wound and fixed on the optical fiber winding wheel, and the other end of the tail fiber of the optical fiber sensor is fixed on the connecting rod of the tension meter;
the tension meter is arranged on the displacement module through a support piece, can move along with the displacement module in the direction of stretching or relaxing the optical fiber, and sends the tension value to the control module in real time;
the control module controls the displacement of the tension meter according to the real-time tension value and a preset tension value.
Further, the displacement module, the fine adjustment module and the optical fiber are positioned on the same straight line around the central line of the fiber wheel.
Furthermore, the optical fiber winding wheel comprises a support and a wheel disc, and a threaded hole is formed in the side face of the support and used for installing a limiting bolt.
Furthermore, before packaging, the optical fiber can be wound on the wheel disc through rotating the optical fiber winding wheel disc, and after the length of the winding fiber is adjusted, the wheel disc is fixed by the limiting bolt so that the optical fiber sensor cannot rotate.
Further, after the optical fiber winding wheel disc is fixed, the wound optical fiber is adhered to the wheel disc by using an adhesive tape.
Further, the fine adjustment module adjusts the height of the top surface according to the size of the optical fiber sensor packaging structure.
Further, the optical fiber is parallel to the connecting rod, and the optical fiber and the connecting rod are wound and fixed through multiple circles of adhesive tapes.
Furthermore, the displacement module comprises an outer frame, a stepping motor, a lead screw, a coupler, a sliding block and a guide rail; the stepping motor is arranged at one end of the outer frame with the large hole, the lead screw is arranged along the length direction of the outer frame and is connected with the rotating shaft of the stepping motor through the coupler, and the guide rails are arranged on two sides of the lead screw along the length direction of the outer frame; the slide block can slide freely on the guide rail.
Further, step motor drive the lead screw, the lead screw drives the slider is followed the guide rail is in outer frame length direction moves, drives the tensiometer is tensile or is relaxed optic fibre.
Furthermore, the control module comprises a control system and a motor driver, the control system sends out a motor control signal according to the tension value returned by the tension meter and a preset tension value, and the motor control signal controls the stepping motor to rotate forwards or backwards through the motor driver.
Further, the control system further comprises a human-computer interaction device, the human-computer interaction device comprises an OLED display screen, a key and an LED indicator lamp, the OLED display screen is used for displaying a preset tension value and an actual tension value of the tension meter, the key is used for setting an expected tension value, and the LED indicator lamp is used for indicating a current control state.
Furthermore, the control system is further configured to store a preset tension value, and after the control module is started, the control system reads the last preset tension value and sets the last preset tension value as the current preset tension value.
Further, the control system can be switched between a manual mode and an automatic mode, the displacement of the tension meter is controlled through the key in the manual mode, and the displacement of the tension meter is automatically controlled by the control system according to set conditions in the automatic mode.
A method for maintaining the prestress of optical fiber sensor package by using the automatic prestress control device in the optical fiber sensor packaging process comprises the following steps:
(1) placing the packaging structure at the top end of the fine adjustment module, penetrating the optical fiber through the packaging structure to enable the sensing area of the optical fiber to be located in the packaging structure, and fixing tail fibers at two ends on the optical fiber winding wheel disc and the tension meter connecting rod respectively;
(2) controlling the displacement of the tension meter in a manual mode of a control system, straightening the optical fiber but keeping the stress smaller than a tension value to be set, and adjusting the height of the top end of the fine adjustment module to ensure that the optical fiber is not stressed in the vertical direction;
(3) fixing the optical fiber sensing area on the packaging structure by using non-quick-drying glue, switching the control system to an automatic mode, setting a preset tension value, and standing until the glue is completely cured.
Compared with the prior art, the invention has the following advantages:
(1) according to the automatic control device for the prestress of the optical fiber sensor, the prestress applied to the optical fiber is automatically controlled in a closed loop mode in the packaging process of the optical fiber sensor, the rotation of the stepping motor is controlled in real time according to the tension value applied to the optical fiber, the prestress applied to the optical fiber is accurately controlled, the control precision is high, and the system stability is high;
(2) the optical fiber is fixed by adopting the modes of optical fiber winding and adhesive tape fixing, and compared with a clamping type fixing mode, the optical fiber fixing device does not change the physical structure of the optical fiber and does not damage the optical fiber;
(3) the invention is suitable for the packaging process of various all-optical fiber sensors and is not influenced by the packaging structure of the sensor;
(4) the invention has simple structure, easy operation, no need of computer to participate in control, convenient mass duplication, and is beneficial to mass packaging production of the optical fiber sensor, and can ensure the performance consistency of the optical fiber sensor.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an automatic prestress control device of an optical fiber sensor;
FIG. 2 is a schematic diagram of a control module architecture;
FIG. 3 is a schematic diagram of a displacement module;
fig. 4 is a control system software control flow diagram.
In the figure, a control module 1, a displacement module 2, a support 3, a tension meter 4, a connecting rod 5, a fine adjustment module 6, an optical fiber sensor packaging structure 7, an optical fiber 8, a wheel disc 9, a support 10, an optical fiber sensor tail fiber 11 and a base 12.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples so that those skilled in the art may better understand the present invention and can practice it, but the examples are not intended to limit the present invention.
As shown in fig. 1, an automatic prestress control device for an optical fiber sensor packaging process includes a control module 1, a displacement module 2, a tension meter 4, a fine adjustment module 6, an optical fiber winding wheel and a base 12; the fine adjustment module 6 is used for supporting the optical fiber sensor packaging structure 7, and the optical fiber sensor is free from external force in the vertical direction by adjusting the height of the fine adjustment module 6; one end of the tail fiber 11 of the optical fiber sensor is wound and fixed on the fiber winding wheel of the optical fiber, and the other end is fixed on the connecting rod 5 of the tension meter 4; the tension meter 4 is installed on the displacement module 2 through the support piece 3, can move along with the displacement module 2 to the direction of stretching or relaxing the optical fiber 8, sends the tension value to the control module 1 in real time, and the control module 1 makes a decision according to the real-time tension value and a preset tension value to control the displacement of the tension meter 4.
In one embodiment, the displacement module 2, the fine adjustment module 6 and the fiber winding wheel are fixed on the base 12 through bolts, and the central lines are in the same straight line. The optical fiber winding wheel consists of a support 10 and a wheel disc 9, and the side surface of the support 10 is provided with a threaded hole for installing a limiting bolt. Before encapsulation, the optical fiber can be rotated to wind the fiber sensor tail fiber 11 on the wheel disc 9 around the fiber wheel disc 9, and after the length of the wound fiber is adjusted, the wheel disc 9 is fixed by using a limiting bolt so that the wound fiber can not rotate. And after the optical fiber is fixed around the optical fiber wheel disc 9, the wound optical fiber is stuck on the wheel disc by using an adhesive tape. The trimming module 6 can adjust the height of the top surface according to the size of the sensor package 7. The tension meter 4 is provided with a connecting rod 5 for fixing the optical fiber, the optical fiber and the connecting rod are leaned against each other in parallel, and the optical fiber and the connecting rod are fixed together by winding a plurality of turns with an adhesive tape.
The control module 2 comprises a control system and a motor driver, the control system sends out a motor control signal according to the tension value returned by the tension meter 4 and a preset tension value, and the motor control signal controls the stepping motor to rotate forwards or backwards through the motor driver. The control core of the control system is an AVR singlechip, runs a prestress automatic control program, comprises a plurality of I/O ports and rich peripheral interfaces such as SPI, USART and the like, and is convenient for receiving and sending data and increasing peripheral devices; the internal EEPROM can be used for storing a preset tension value, and the last preset tension value is firstly read to be the current preset tension value after each startup. As shown in fig. 2, the control system further comprises a human-computer interaction device, the human-computer interaction device comprises an OLED display screen 1-1, a key 1-2 and an LED indicator light 1-3, the OLED display screen 1-1 is connected with the control single chip microcomputer through an SPI (serial peripheral interface) and used for displaying a preset tension value and an actual tension value of the tension meter at the same time, the key 1-2 is used for setting an expected tension value and manually controlling the movement of a sliding block 2-4, and the LED indicator light 1-3 is used for indicating a current control state. As shown in fig. 4, which is a software control flow chart of the control system, after the computer is started, the pulling force value stored in the EEPROM is read as a default preset pulling force value, then a data format setting instruction is sent to the tension meter, and then a control cycle is entered. The control system can be switched between a manual mode and an automatic mode, the displacement of the tension meter is controlled through the key in the manual mode, and the displacement of the tension meter is automatically controlled by the control system according to set conditions in the automatic mode.
As shown in fig. 3, the displacement module 2 includes a stepping motor 2-1, an outer frame 2-2, a coupler 2-3, a slider 2-4, a lead screw 2-5, and a guide rail 2-6, the stepping motor 2-1 is installed at one end of the outer frame 2-2 with a large hole, the lead screw 2-5 is arranged along the length direction of the outer frame 2-2, the coupler 2-3 and the stepping motor 2-1 are connected together through a rotating shaft, the guide rail 2-6 is arranged along the length direction of the outer frame 2-2 at two sides of the lead screw 2-5, and penetrates through the slider 2-4 to limit the moving path of the slider 2-4. The stepping motor 2-1 drives the screw rod 2-5, the screw rod 2-5 drives the sliding block 2-4 to move along the guide rail 2-6 in the length direction of the outer frame 2-2, and the sliding block 2-4 drives the tension meter 4 to stretch or relax the optical fiber 8.
In the process of packaging the optical fiber sensor, firstly, a packaging structure 7 is arranged at the top end of a fine adjustment module 6, an optical fiber 8 penetrates through the packaging structure 7, the position of the optical fiber 8 is adjusted to enable a sensing area to be located in the packaging structure 7, meanwhile, the optical fiber 8 and the packaging structure 7 are ensured to be parallel to the moving direction of a sliding block 2-4, and tail fibers 11 at two ends are respectively fixed on an optical fiber winding wheel disc 9 and a tension meter connecting rod 5;
controlling the tension meter 4 to move in a manual mode of a control system, straightening the optical fiber 8 but keeping the stress smaller than a tension value to be set, adjusting the fine adjustment module 6 to adjust the packaging structure 7 to a proper height to ensure that the optical fiber is not stressed in the vertical direction, and fixing the packaging structure 7 at the top end of the fine adjustment module 6 by using an adhesive tape;
the optical fiber sensing area is fixed on the packaging structure 7 by using non-quick-drying glue, the control system is switched to an automatic mode, preset tension values are set bit by bit through keys, the whole device is kept stand until the glue is completely cured, and the prestress of the optical fiber sensing area can be kept at a preset value.
As shown in fig. 4, based on the same inventive concept as fig. 1, the present invention further provides a method for pre-stress retention of an optical fiber sensor package, comprising the following steps:
(1) placing the packaging structure at the top end of the fine adjustment module, penetrating the optical fiber through the packaging structure to enable the sensing area of the optical fiber to be located in the packaging structure, and fixing tail fibers at two ends on the optical fiber winding wheel disc and the tension meter connecting rod respectively;
(2) controlling the displacement of the tension meter in a manual mode of a control system, straightening the optical fiber but keeping the stress smaller than a tension value to be set, and adjusting the height of the top end of the fine adjustment module to ensure that the optical fiber is not stressed in the vertical direction;
(3) fixing the optical fiber sensing area on the packaging structure by using non-quick-drying glue, switching the control system to an automatic mode, setting a preset tension value, and standing until the glue is completely cured.
The above description is only for the best mode of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Those skilled in the art will appreciate that the details of the invention not described in detail in the specification are within the skill of those skilled in the art.
Claims (14)
1. The utility model provides an optical fiber sensor packaging process prestressing force automatic control device which characterized in that: the device comprises a control module, a displacement module, a support piece, a tension meter, a connecting rod, a fine adjustment module, an optical fiber sensor packaging structure, an optical fiber winding wheel and a base;
the displacement module, the fine adjustment module and the optical fiber winding wheel are fixedly arranged on the base;
the fine adjustment module is used for supporting the optical fiber sensor packaging structure, and the optical fiber sensor is free from external force in the vertical direction by adjusting the height of the fine adjustment module;
one end of the tail fiber of the optical fiber sensor is wound and fixed on the optical fiber winding wheel, and the other end of the tail fiber of the optical fiber sensor is fixed on the connecting rod of the tension meter;
the tension meter is arranged on the displacement module through a support piece, can move along with the displacement module in the direction of stretching or relaxing the optical fiber, and sends the tension value to the control module in real time;
the control module controls the displacement of the tension meter according to the real-time tension value and a preset tension value.
2. The automatic control device for prestress in the packaging process of the optical fiber sensor as claimed in claim 1, wherein: the displacement module, the fine adjustment module and the optical fiber are positioned on the same straight line around the central line of the fiber wheel.
3. The automatic control device for prestress in the packaging process of the optical fiber sensor as claimed in claim 1, wherein: the optical fiber winding wheel comprises a support and a wheel disc, wherein a threaded hole is formed in the side face of the support and used for installing a limiting bolt.
4. The automatic control device for prestress in the packaging process of the optical fiber sensor according to claim 1 or 3, wherein: before packaging, the optical fiber is wound on the wheel disc through rotating the optical fiber winding wheel disc, and after the length of the wound optical fiber is adjusted, the wheel disc is fixed by the limiting bolt so that the wheel disc cannot rotate.
5. The automatic control device for prestress in the packaging process of the optical fiber sensor as claimed in claim 4, wherein: and after the optical fiber winding wheel disc is fixed, the wound optical fiber is stuck on the wheel disc by using an adhesive tape.
6. The automatic control device for prestress in the packaging process of the optical fiber sensor as claimed in claim 1, wherein: and the fine adjustment module adjusts the height of the top surface according to the size of the optical fiber sensor packaging structure.
7. The automatic control device for prestress in the packaging process of the optical fiber sensor as claimed in claim 6, wherein: the optical fiber is parallel to the connecting rod, and the optical fiber and the connecting rod are wound and fixed through multiple circles of adhesive tapes.
8. The automatic control device for prestress in the packaging process of the optical fiber sensor as claimed in claim 1, wherein: the displacement module comprises an outer frame, a stepping motor, a lead screw, a coupler, a sliding block and a guide rail; the stepping motor is arranged at one end of the outer frame with the large hole, the lead screw is arranged along the length direction of the outer frame and is connected with the rotating shaft of the stepping motor through the coupler, and the guide rails are arranged on two sides of the lead screw along the length direction of the outer frame; the slide block can slide freely on the guide rail.
9. The automatic control device for prestress in the packaging process of the optical fiber sensor as claimed in claim 8, wherein: the stepping motor drives the lead screw, the lead screw drives the sliding block to move along the guide rail in the length direction of the outer frame, and the tension meter is driven to stretch or relax the optical fiber.
10. The automatic control device for prestress in the packaging process of the optical fiber sensor as claimed in claim 1, wherein: the control module comprises a control system and a motor driver, the control system sends out a motor control signal according to the tension value returned by the tension meter and a preset tension value, and the motor control signal controls the stepping motor to rotate forwards or backwards through the motor driver.
11. The optical fiber sensor packaging process prestress automatic control device according to claim 10, wherein: the control system further comprises a human-computer interaction device, the human-computer interaction device comprises an OLED display screen, a key and an LED indicating lamp, the OLED display screen is used for displaying a preset tension value and an actual tension value of the tension meter, the key is used for setting an expected tension value, and the LED indicating lamp is used for indicating the current control state.
12. The automatic control device for prestress in the packaging process of the optical fiber sensor as claimed in claim 10, wherein: the control system is further used for storing a preset tension value, and after the control module is started, the control system reads the last preset tension value and sets the last preset tension value as the current preset tension value.
13. The automatic control device for prestress in the packaging process of the optical fiber sensor according to claim 10 or 11, wherein: the control system can be switched between a manual mode and an automatic mode, the displacement of the tension meter is controlled through the key in the manual mode, and the displacement of the tension meter is automatically controlled by the control system according to set conditions in the automatic mode.
14. A method for maintaining prestress of optical fiber sensor package by using the automatic prestress control device in the optical fiber sensor packaging process of claim 1, which is characterized by comprising the following steps:
(1) placing the packaging structure at the top end of the fine adjustment module, penetrating the optical fiber through the packaging structure to enable the sensing area of the optical fiber to be located in the packaging structure, and fixing tail fibers at two ends on the optical fiber winding wheel disc and the tension meter connecting rod respectively;
(2) controlling the displacement of the tension meter in a manual mode of a control system, straightening the optical fiber but keeping the stress smaller than a tension value to be set, and adjusting the height of the top end of the fine adjustment module to ensure that the optical fiber is not stressed in the vertical direction;
(3) fixing the optical fiber sensing area on the packaging structure by using non-quick-drying glue, switching the control system to an automatic mode, setting a preset tension value, and standing until the glue is completely cured.
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| CN202011476216.7A CN112710336A (en) | 2020-12-14 | 2020-12-14 | Device and method for automatically controlling prestress in optical fiber sensor packaging process |
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| CN202011476216.7A CN112710336A (en) | 2020-12-14 | 2020-12-14 | Device and method for automatically controlling prestress in optical fiber sensor packaging process |
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Cited By (3)
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| CN115093114A (en) * | 2022-06-17 | 2022-09-23 | 中国工程物理研究院激光聚变研究中心 | Micro-nano optical fiber preparation device and method |
| CN115196419A (en) * | 2022-05-18 | 2022-10-18 | 北京理工大学 | Device for coiling tail fiber of optical fiber gyroscope |
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Application publication date: 20210427 |