High-precision electric optical fiber delay line
By combining the adjustment mechanism with single-chip microcomputer control, flexible adjustment of high-precision electric fiber delay lines is achieved, solving the problem of limited adaptability caused by the single adjustment method in the existing technology, and improving the equipment's multi-environment applicability and adjustment accuracy.
Patent Information
- Application Number
- CN202520977760.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-03-27
- Estimated Expiration
- 2035-05-19
AI Technical Summary
Existing high-precision motorized fiber optic delay lines have relatively simple adjustment methods, resulting in limited adaptability, poor flexibility, and difficulty in adapting to various application scenarios.
The adjustment mechanism, including a rotating shaft, a drive end face gear plate, a slide cylinder, and a connecting block, combined with microcontroller control, enables independent control of two different adjustment components, allowing for free selection of the delay adjustment method for the fiber optic delay line and enhancing flexibility.
It improves the multi-environment applicability of high-precision motorized fiber optic delay lines, enabling flexible adjustment of optical signal delay time in more scenarios, and enhancing the adaptability and adjustment accuracy of the equipment.
Smart Images
Figure CN224052451U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of optical fiber delay line, concretely to a high accuracy electric optical fiber delay line. BACKGROUND
[0002] The element or device that delays an electric signal for a period of time is called a delay line, such elements are usually used in radar, communication and measurement fields, the optical fiber delay line is a kind of equipment based on optical fiber technology, the delay is realized by transmitting optical signal in optical fiber for a certain distance, and the delay can also be realized by inserting optical device (such as optical delay module) in optical fiber;
[0003] The existing high accuracy electric optical fiber delay line part is by irradiating optical signal on the corner cube prism, the optical signal is output after being refracted by the corner cube prism, the position of the corner cube prism is adjusted by the driving assembly, and then the delay time of the optical signal is changed, and another part generates a magnetic field around the optical fiber, so that the refractive index of the optical signal in the optical fiber is adjusted, and the delay time of the optical signal is changed;
[0004] The existing high accuracy electric optical fiber delay line usually uses a single adjustment method for adjustment, and the adaptability scene is more limited in actual use, and the flexibility is poor, different high accuracy electric optical fiber delay lines need to be selected according to the use, therefore, we provide a kind of high accuracy electric optical fiber delay line. INVENTION CONTENTS
[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide a kind of high accuracy electric optical fiber delay line, change the position of sliding tube by adjusting mechanism, control two different adjusting assemblies respectively, can freely select the delay adjustment method of optical fiber delay line, can adapt to more use scenes, the flexibility is strong, greatly improve the multi-environment applicability of high accuracy electric optical fiber delay line, can effectively solve the problems in the background art.
[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of high accuracy electric optical fiber delay line, including shell, the left surface of the shell is sequentially fixedly connected with input optical fiber collimator, optical fiber collimator one, optical fiber collimator two and output optical fiber collimator from front to back, the inside front side of shell is equipped with adjustable corner cube prism, the inside lower surface rear side of shell is fixedly connected with coil, it is characterized by further including adjusting mechanism;
[0007] Adjusting mechanism: it includes pivot, drive end face tooth disc, sliding tube and connecting block, the pivot is rotatably connected to the inside right side of shell, the outer surface rear side of pivot is slidably connected with sliding tube, the outer surface front and back ends of sliding tube are fixedly connected with drive end face tooth disc, the outer surface middle part of sliding tube is rotatably connected with connecting block, the front end of pivot is fixedly connected with knob;
[0008] Wherein: the fixed connection between the optical fiber collimator one and optical fiber collimator two has optical fiber one, the fixed connection between the optical fiber collimator two and output optical fiber collimator has optical fiber two, through adjusting mechanism, change slide cylinder position controls two different adjusting components respectively, can freely choose the delay adjusting method of optical fiber delay line, can adapt to more use scene, strong flexibility, greatly improve the multi-environment applicability of high-precision electric optical fiber delay line.
[0009] Further, the right surface of the shell is fixedly connected with a single-chip microcomputer, the input end of the single-chip microcomputer is electrically connected with an external power supply, and the output end of the coil is electrically connected with the input end of the single-chip microcomputer.
[0010] Further, the inside of the shell is fixedly connected with an electric push rod, the front end of the output shaft of the electric push rod is fixedly connected with the upper end of the connecting block, and the input end of the electric push rod is electrically connected with the output end of the single-chip microcomputer.
[0011] Further, the inside of the shell is fixedly connected with an electric push rod, the front end of the output shaft of the electric push rod is fixedly connected with the upper end of the connecting block, and the input end of the electric push rod is electrically connected with the output end of the single-chip microcomputer.
[0012] Further, the inside of the shell is fixedly connected with an electric push rod, the front end of the output shaft of the electric push rod is fixedly connected with the upper end of the connecting block, and the input end of the electric push rod is electrically connected with the output end of the single-chip microcomputer.
[0013] Further, the adjusting mechanism further comprises a driven bevel gear, a driving bevel gear and a driven end face gear plate, the driven bevel gear is fixedly connected to the right end of the screw rod two, the outer surface of the rotating shaft is rotatably connected with the driving bevel gear on the front side, the driving bevel gear is meshingly connected with the driven bevel gear, the rear surface of the driving bevel gear is fixedly connected with the driven end face gear plate, and the front end of the screw rod one is also fixedly connected with the driven end face gear plate.
[0014] Further, the front surface and the right surface of the shell are fixedly connected with transparent observation windows, and the inside of the transparent observation windows is provided with scale lines.
[0015] Compared with the prior art, the high-precision electric optical fiber delay line has the following advantages:
[0016] The two sets of different adjustment assemblies are controlled by changing the slide cylinder position through the adjusting mechanism, the delay adjustment method of the optical fiber delay line can be freely selected, more use scenarios can be adapted, the flexibility is strong, and the multi-environment applicability of the high-precision electric optical fiber delay line is greatly improved. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a structure schematic view of the utility model;
[0018] Figure 2 It is a structure schematic view of the utility model;
[0019] Figure 3 It is a structure schematic view of the utility model A place amplification;
[0020] Figure 4 It is a structure schematic view of the utility model B place amplification.
[0021] In the figure: 1 shell, 2 single-chip microcomputer, 3 knob, 4 scale line, 5 input optical fiber collimator, 6 optical fiber collimator one, 7 optical fiber collimator two, 8 output optical fiber collimator, 9 adjusting mechanism, 91 rotating shaft, 92 driven bevel gear, 93 drive bevel gear, 94 driven end face gear disc, 95 drive end face gear disc, 96 slide cylinder, 97 connecting block, 10 screw one, 11 slide block one, 12 conductive contact, 13 resistance wire, 14 electric push rod, 15 coil, 16 screw two, 17 slide block two, 18 angular pyramid prism. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0023] Please refer to Figures 1-4The embodiment provides a technical scheme: a high-precision electric optical fiber delay line, which comprises a shell 1, an input optical fiber collimator 5, an optical fiber collimator one 6, an optical fiber collimator two 7 and an output optical fiber collimator 8 which are sequentially and fixedly connected to the left surface of the shell 1 from front to back, an adjustable corner cube prism 18 which is arranged on the inner front side of the shell 1, a coil 15 which is fixedly connected to the lower surface of the inner rear side of the shell 1, a single-chip microcomputer 2 which is fixedly connected to the right surface of the shell 1, an external power supply which is electrically connected to the input end of the single-chip microcomputer 2, an output end of the coil 15 which is electrically connected to the input end of the single-chip microcomputer 2, a screw rod two 16 which is rotatably connected to the inner front side of the shell 1, a sliding block two 17 which is threadedly connected to the outer surface of the screw rod two 16, a lower surface of the sliding block two 17 which is slidably connected to the inner lower surface of the shell 1, a lower surface of the corner cube prism 18 which is fixedly connected to the upper surface of the sliding block two 17, a screw rod one 10 which is rotatably connected to the inner rear side of the shell 1, a sliding block one 11 which is threadedly connected to the outer surface of the screw rod one 10, a lower surface of the sliding block one 11 which is slidably connected to the inner lower surface of the shell 1, a conductive contact 12 which is fixedly connected to the upper surface of the sliding block one 11, a resistance wire 13 which is fixedly connected to the inner rear side of the shell 1, an output end of the resistance wire 13 which is electrically connected to the input end of the coil 15, an input end of the conductive contact 12 which is electrically connected to the output end of the single-chip microcomputer 2, the single-chip microcomputer 2 is operated, the coil 15 is powered, the current passes through the conductive contact 12, the resistance wire 13, the coil 15 and the output end of the coil 15 to return to the single-chip microcomputer 2, a path is formed, a magnetic field is generated around the coil 15, so that the optical signal is delayed, a transparent observation window is fixedly connected to the front surface and the right surface of the shell 1, and scale lines 4 are arranged in the transparent observation window, and the adjustment mechanism 9 is further arranged.
[0024] The adjusting mechanism 9 comprises a rotating shaft 91, a driving end face gear plate 95, a sliding cylinder 96 and a connecting block 97, the rotating shaft 91 is rotatably connected to the right side of the inner part of the shell 1, the outer surface of the rear side of the rotating shaft 91 is slidably connected with the sliding cylinder 96, the outer surface of the front and back of the sliding cylinder 96 is fixedly connected with the driving end face gear plate 95, the outer surface of the middle part of the sliding cylinder 96 is rotatably connected with the connecting block 97, the front end of the rotating shaft 91 is fixedly connected with the knob 3, the inner part of the shell 1 is fixedly connected with the electric push rod 14, the output shaft of the electric push rod 14 is fixedly connected with the upper end of the connecting block 97, the input end of the electric push rod 14 is electrically connected with the output end of the single-chip microcomputer 2, the adjusting mechanism 9 further comprises a driven bevel gear 92, a driving bevel gear 93 and a driven end face gear plate 94, the driven bevel gear 92 is fixedly connected with the right end of the screw rod two 16, the outer surface of the front side of the rotating shaft 91 is rotatably connected with the driving bevel gear 93, the driving bevel gear 93 is meshingly connected with the driven bevel gear 92, the rear surface of the driving bevel gear 93 is fixedly connected with the driven end face gear plate 94, the front end of the screw rod one 10 is also fixedly connected with the driven end face gear plate 94, the driven end face gear plate 94 is installed in cooperation with the driving end face gear plate 95 on the same side, when it is needed to adjust the optical fiber delay time, the single-chip microcomputer 2 is operated, the electric push rod 14 is elongated, the telescopic end of the electric push rod 14 is elongated to drive the connecting block 97 to move forward, drive the sliding cylinder 96 to move forward, drive the driving end face gear plate 95 to move forward, drive the driven end face gear plate 94 on the front side to mesh with the driving end face gear plate 95 on the front side, at this time, the knob 3 is rotated to rotate the rotating shaft 91, drive the sliding cylinder 96 to rotate, drive the driving end face gear plate 95 to rotate, drive the driven end face gear plate 94 on the front side to rotate, drive the driving bevel gear 93 to rotate, drive the driven bevel gear 92 to rotate, drive the screw rod two 16 to rotate, drive the sliding block two 17 to move along the direction of the screw rod two 16, drive the corner cube prism 18 to move, so as to adjust the optical signal delay time, the telescopic end of the electric push rod 14 is retracted to drive the connecting block 97 to move backward, drive the sliding cylinder 96 to move backward, drive the driving end face gear plate 95 to move backward, drive the driving end face gear plate 95 on the rear side to mesh with the driving end face gear plate 95 on the rear side, drive the driven end face gear plate 94 on the front side to separate from the driving end face gear plate 95 on the front side, at this time, the knob 3 is rotated to rotate the rotating shaft 91 to drive the sliding cylinder 96 to rotate, drive the driving end face gear plate 95 to rotate, drive the driven end face gear plate 94 on the rear side to rotate, drive the screw rod one 10 to rotate, drive the sliding block one 11 to move along the direction of the screw rod one 10, drive the conductive contact 12 to move (the conductive contact 12 is in contact with the resistance wire 13), so as to adjust the resistance, in turn adjust the current size in the coil 15, further adjust the magnetic field size generated by the coil 15, further adjust the optical signal extension time;
[0025] Wherein: the fixed connection between the optical fiber collimator one 6 and optical fiber collimator two 7 has optical fiber one, optical fiber two is fixedly connected with optical fiber collimator two 7 and output optical fiber collimator 8, the external optical fiber is communicated with input optical fiber collimator 5, the optical signal is input to the inside of the shell 1 through input optical fiber collimator 5, the corner cube prism 18 makes the optical signal enter optical fiber collimator one 6 through 180 degrees refraction, and then passes through optical fiber one, optical fiber collimator two 7, optical fiber two and output optical fiber collimator 8, and is output to the outside from output optical fiber collimator 8.
[0026] The working principle of the high-precision electric optical fiber delay line is as follows: when the high-precision electric optical fiber delay line is used, the external optical fiber is communicated with the input optical fiber collimator 5, the optical signal is input to the inside of the shell 1 through the input optical fiber collimator 5, the corner cube prism 18 makes the optical signal enter the optical fiber collimator one 6 through 180 degrees refraction, and then passes through the optical fiber one, the optical fiber collimator two 7, the optical fiber two and the output optical fiber collimator 8, and is output to the outside from the output optical fiber collimator 8, when the optical fiber delay time needs to be adjusted, the single-chip microcomputer 2 is operated, the electric push rod 14 is elongated, the telescopic end of the electric push rod 14 is elongated to drive the connecting block 97 to move forward, drive the sliding cylinder 96 to move forward, drive the driving end face gear plate 95 to move forward, make the driven end face gear plate 94 on the front side engage with the driving end face gear plate 95 on the front side, at this time, the rotating knob 3 is rotated to rotate the rotating shaft 91, drive the sliding cylinder 96 to rotate, drive the driving end face gear plate 95 to rotate, drive the driven end face gear plate 94 on the front side to rotate, drive the driving bevel gear 93 to rotate, drive the driven bevel gear 92 to rotate, drive the screw rod two 16 to rotate, drive the sliding block two 17 to move along the direction of the screw rod two 16, make the corner cube prism 18 move, so as to adjust the optical signal delay time, the single-chip microcomputer 2 is operated, the coil 15 is powered, the current passes through the conductive contact 12, the resistance wire 13, the coil 15, and returns to the single-chip microcomputer 2 through the output end of the coil 15, forms a passage, makes the magnetic field around the coil 15, so as to make the optical signal delay, the telescopic end of the electric push rod 14 is retracted, drives the connecting block 97 to move backward, drives the sliding cylinder 96 to move backward, drives the driving end face gear plate 95 to move backward, makes the driven end face gear plate 95 on the back side engage with the driving end face gear plate 95 on the back side, the driven end face gear plate 94 on the front side is separated from the driving end face gear plate 95 on the front side, at this time, the rotating knob 3 is rotated to rotate the rotating shaft 91, drive the sliding cylinder 96 to rotate, drive the driving end face gear plate 95 to rotate, drive the driven end face gear plate 94 on the back side to rotate, drive the screw rod one 10 to rotate, drive the sliding block one 11 to move along the direction of the screw rod one 10, drive the conductive contact 12 to move (the conductive contact 12 is in contact with the resistance wire 13), so as to adjust the resistance, thereby adjusting the current size in the coil 15, further adjusting the magnetic field size generated by the coil 15, and further adjusting the optical signal extension time.
[0027] It is worth noting that the single-chip microcomputer 2 disclosed in the above embodiment is selected as APM32F407, the electric push rod 14 is selected as the FY series electric push rod, and the single-chip microcomputer 2 controls the electric push rod 14 to work by using the method commonly used in the prior art.
[0028] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.
Claims
1. A high-precision electric fiber delay line, comprising a housing (1), wherein an input fiber collimator (5), a first fiber collimator (6), a second fiber collimator (7), and an output fiber collimator (8) are fixedly connected sequentially from front to back on the left surface of the housing (1), an adjustable corner prism (18) is provided on the front side inside the housing (1), and a coil (15) is fixedly connected on the rear side of the lower surface inside the housing (1), characterized in that: Also includes the adjusting mechanism (9); The adjusting mechanism (9) comprises a rotating shaft (91), a driving end face gear plate (95), a sliding cylinder (96) and a connecting block (97), the rotating shaft (91) is rotatably connected to the right side of the inside of the shell (1), the outer surface of the rotating shaft (91) is slidably connected with the sliding cylinder (96), the outer surface of the sliding cylinder (96) is fixedly connected with the driving end face gear plate (95) at both ends, the outer surface of the sliding cylinder (96) is rotatably connected with the connecting block (97), and the front end of the rotating shaft (91) is fixedly connected with the knob (3); Wherein: the optical fiber one is fixedly connected between the optical fiber collimator one (6) and the optical fiber collimator two (7), and the optical fiber two is fixedly connected between the optical fiber collimator two (7) and the output optical fiber collimator (8).
2. A high precision electrically tunable optical fiber delay line according to claim 1, characterized in that: The right surface of the shell (1) is fixedly connected with a single-chip microcomputer (2), the input end of the single-chip microcomputer (2) is electrically connected with an external power supply, and the output end of the coil (15) is electrically connected with the input end of the single-chip microcomputer (2).
3. A high precision electrically tunable optical fiber delay line according to claim 2, characterized in that: The inside of the shell (1) is fixedly connected with an electric push rod (14), the output shaft front end of the electric push rod (14) is fixedly connected with the upper end of the connecting block (97), and the input end of the electric push rod (14) is electrically connected with the output end of the single-chip microcomputer (2).
4. A high precision electrically tunable optical fiber delay line according to claim 2, characterized in that: The inside of the shell (1) is rotatably connected with a screw rod two (16) on the front side, the outer surface of the screw rod two (16) is threadedly connected with a sliding block two (17), the lower surface of the sliding block two (17) is slidably connected to the lower surface of the inside of the shell (1), and the lower surface of the corner cube prism (18) is fixedly connected with the upper surface of the sliding block two (17).
5. A high precision electrically tunable optical fiber delay line according to claim 4, characterized in that: The inside of the shell (1) is rotatably connected with a screw rod one (10) on the rear side, the outer surface of the screw rod one (10) is threadedly connected with a sliding block one (11), the lower surface of the sliding block one (11) is slidably connected to the lower surface of the inside of the shell (1), the upper surface of the sliding block one (11) is fixedly connected with a conductive contact (12), the inside of the shell (1) is fixedly connected with a resistance wire (13), the output end of the resistance wire (13) is electrically connected with the input end of the coil (15), and the input end of the conductive contact (12) is electrically connected with the output end of the single-chip microcomputer (2).
6. A high precision electrically tunable optical fiber delay line according to claim 5, characterized in that: The adjusting mechanism (9) further comprises a driven bevel gear (92), a driving bevel gear (93) and a driven end face gear plate (94), the driven bevel gear (92) is fixedly connected to the right end of the screw rod two (16), the outer surface of the rotating shaft (91) is rotatably connected with the driving bevel gear (93) on the front side, the driving bevel gear (93) is meshedly connected with the driven bevel gear (92), the rear surface of the driving bevel gear (93) is fixedly connected with the driven end face gear plate (94), and the front end of the screw rod one (10) is also fixedly connected with the driven end face gear plate (94), and the driven end face gear plate (94) is mounted in cooperation with the driving end face gear plate (95) on the same side.
7. A high precision electrically tunable optical fiber delay line according to claim 1, characterized in that: The front surface and the right surface of the shell (1) are both fixedly connected with transparent observation windows, and the inside of the transparent observation windows is both provided with scale lines (4).