Phototube alignment method and alignment device thereof
The controller accurately controls the photovoltaic motor and feedback angle sensors to realize the accurate calibration of the photovoltaic plate, solving the problem of difficult control of the photovoltaic calibration accuracy and cumulative errors, and improving the stability of the optical signal.
Patent Information
- Application Number
- CN202411868913.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-03-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing photovoltaic alignment methods have problems such as difficult to control calibration accuracy and accumulated errors, which leads to unstable optical signals received by photovoltaics in complex optical environments.
The controller accurately controls the first motor and the second motor, and combines the real-time feedback of the angle sensor to realize the calibration of the left and right angles and upper and lower elevation angles of the photovoltaic relative to the reflector plate, ensuring the accuracy of the central axis of the photovoltaic towards the reflector plate.
Improve the accuracy and stability of photovoltaic calibration, prevent accumulated errors caused by motor failure or mechanical wear, and ensure the stability of the optical signal received by the photovoltaic in complex environments.
Smart Images
Figure CN119597029A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of photoelectric tube alignment, and in particular to a photoelectric tube alignment method and an alignment device thereof. Background Art
[0002] A phototube is a device that converts light signals into electrical signals based on the photoelectric effect.
[0003] In actual use environments, light source equipment is affected by vibration, installation position, etc. If the phototube is not aligned with the light source, the received luminous flux will be reduced, and the received light intensity will fluctuate due to position deviation, affecting the controller's judgment based on the luminous flux intensity. This fluctuation will cause the output electrical signal to be unstable. In a complex optical environment, there are interference factors such as multiple light sources or reflected light.
[0004] If the photoelectric tube is not accurately adjusted, it may receive unexpected light signals, causing the device to receive incorrect electrical signals and send out incorrect commands, which will also increase the debugging time of the device.
[0005] For example, the Chinese patent application number 2015105046491 discloses a photoelectric tube fixing and alignment system, including a photoelectric tube, the photoelectric tube including a launch port for emitting a light signal, a slide rail is provided at the launch port, the slide rail extends in a direction away from the launch port, and the plane where the slide rail is located is parallel to the light signal emitted from the launch port, and the photoelectric tube is also provided with a light signal adjustment member, and the projection direction of the light signal is adjusted by the light signal adjustment member, and a baffle with scale lines is detachably provided on the slide rail, the plane where the baffle is located is perpendicular to the plane where the slide rail is located, and the distance between the baffle and the launch port is adjustable. The projection direction of the light signal is checked by the baffle, and the projection direction of the light signal is calibrated by the light signal adjustment member, so that the position of the light signal at the receiving end is quantitatively controllable, which is convenient for the operator to find the light signal at the receiving end, thereby realizing the alignment of the photoelectric tube and the receiving end. However, the invention still has problems. Although the projection direction of the light signal is checked by the baffle and calibrated by the light signal adjustment member, the operator needs to check it by the scale on the baffle and adjust the photoelectric tube by the adjustment bolt. This may cause repeated adjustments and inadequate adjustments, making it difficult to control the calibration accuracy of the photoelectric tube during adjustment, and there is a problem of cumulative errors. Therefore, it is necessary to invent a photoelectric tube alignment method and an alignment device thereof to solve the above problems. Summary of the invention
[0006] The object of the present invention is to provide a photoelectric tube alignment method and an alignment device thereof to solve the problems raised in the above background technology.
[0007] To achieve the above object, the present invention provides the following technical solution: a photoelectric tube alignment method and an alignment device thereof, comprising the following steps: S1. The first motor is controlled by the controller to achieve left and right angle calibration of the photoelectric tube relative to the reflector; S2. The angle sensor on the first motor shaft detects the rotation angle of the first motor in real time and feeds back to the controller. The controller analyzes the position of the photoelectric tube, determines and drives the first motor accurately through the controller, and grasps the position of the central axis of the photoelectric tube toward the reflector in real time; S3. The second motor is controlled by the controller to achieve the upper and lower elevation angle calibration of the photoelectric tube relative to the reflector; S4. The angle sensor on the second motor shaft detects the rotation angle of the second motor in real time and feeds it back to the controller. The controller analyzes the position of the photoelectric tube, determines and drives the second motor accurately through the controller, and grasps the position of the center axis of the photoelectric tube toward the reflector in real time.
[0008] The present invention also provides a photoelectric tube adjustment device, which is used in a photoelectric tube adjustment method, including a photoelectric tube and a reflector, and also including a positioning component and a calibration component. The positioning component includes a positioning cylinder, a limiting ring for fixing one end of the photoelectric tube is arranged in the positioning cylinder, and a support member for limiting the other end of the photoelectric tube is arranged in the positioning cylinder; the calibration component includes an adjusting member arranged in the positioning cylinder, the limiting ring is rotated in the adjusting member through a transmission shaft, and one end of the photoelectric tube located in the limiting ring is aligned with the central axis of the transmission shaft.
[0009] Preferably, a placement slot is opened in the positioning cylinder, and the calibration component includes a first motor fixed in the placement slot, the output end of the first motor is connected to the bottom of the adjusting member through a transmission member, and an angle sensor is fixed on the output shaft of the first motor to detect the rotation angle of the output shaft of the first motor.
[0010] Preferably, the calibration component includes a second motor fixed on one side of the adjusting member, the second motor is connected to the transmission shaft through a transmission member, and an angle sensor is fixedly connected to the output shaft of the second motor for detecting the rotation angle of the output shaft of the second motor.
[0011] Preferably, an avoidance groove for avoiding the second motor is opened in the positioning cylinder, and a controller is arranged in the positioning cylinder.
[0012] Preferably, the controller is electrically connected to the first motor and an angle sensor fixed on an output shaft of the first motor, respectively, and the controller is also electrically connected to the second motor and an angle sensor fixed on an output shaft of the second motor, respectively.
[0013] Preferably, when the end surface of the adjusting member is perpendicular to the central axis of the positioning cylinder, the angle sensor at the output end of the first motor measures that the rotation angle of the output shaft of the first motor is zero.
[0014] Preferably, when the end face of the limit ring is parallel to the end face of the adjusting member and the central axis of the limit ring coincides with the central axis of the positioning cylinder, the rotation angles measured by the angle sensor on the output shaft of the first motor and the angle sensor on the output shaft of the second motor are both zero.
[0015] Preferably, the support member includes a movable member fixed on its outer wall, the outer wall of the movable member is movably connected to the inner wall of the positioning tube, the movable member is electrically connected to the controller, and electrorheological fluid is arranged in the movable member.
[0016] Preferably, a base is provided at the bottom of the positioning tube, the reflective plate and the bottom of the positioning tube are connected to a workbench, and the adjusting member 41 is a U-shaped member.
[0017] Technical effects and advantages of the present invention: 1. The present invention compares and judges the data fed back by the first motor and the angle sensor through the controller, so as to prevent the first motor from having errors between the preset rotation angle and the actual rotation angle due to various factors such as load changes, motor loss of step, mechanical wear, etc., thereby further ensuring the rotation accuracy of the first motor, and performing angle compensation on the first motor through the controller to ensure that it is consistent with the data measured by the angle sensor, thereby further preventing the problem of cumulative errors in the calibration of the photoelectric tube due to loss of step or mechanical wear of the first motor; the controller energizes the electrorheological fluid in the movable part, so that the movable part is in a solid state to further support the support part and the photoelectric tube, thereby preventing the photoelectric tube from loosening in the positioning tube due to the instability of the working environment during operation, thereby further ensuring the accuracy of the photoelectric tube during use after calibration.
[0018] 2. The present invention compares the data fed back by the second motor and the angle sensor through the controller to prevent the second motor from having errors between the preset rotation angle and the actual rotation angle due to various factors such as load changes, motor loss of step, mechanical wear, etc., thereby further ensuring the rotation accuracy of the second motor, and performing angle compensation on the second motor through the controller to ensure that it is consistent with the data measured by the angle sensor, thereby further preventing the problem of cumulative errors in the photoelectric tube during calibration due to loss of step or mechanical wear of the second motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the photoelectric tube adjustment device of the present invention.
[0020] Figure 2 It is a cross-sectional view of the overall structure of the present invention.
[0021] Figure 3 It is a schematic diagram of the positioning tube structure of the present invention.
[0022] Figure 4 It is a schematic diagram of the structure of the adjusting member of the present invention.
[0023] Figure 5 It is a schematic cross-sectional view of the positioning cylinder of the present invention at the first motor.
[0024] Figure 6 It is a schematic diagram of the deflection of the photoelectric tube of the present invention under the action of the first motor.
[0025] Figure 7 It is a schematic diagram of the deflection of the photoelectric tube of the present invention under the action of the second motor.
[0026] In the figure: 1. Photoelectric tube; 2. Reflector; 3. Positioning assembly; 31. Positioning cylinder; 32. Limiting ring; 321. Transmission shaft; 33. Support member; 331. Movable member; 4. Calibration component; 41. Adjustment member; 42. First motor; 43. Second motor. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1
[0028] See also Figures 1 to 7 This embodiment provides a photoelectric tube alignment method, comprising the following steps: S1. The first motor 42 is controlled by the controller to achieve left and right angle calibration of the photoelectric tube 1 relative to the reflector 2; S2. The angle sensor on the rotating shaft of the first motor 42 detects the rotation angle of the first motor 42 in real time and feeds it back to the controller. The controller analyzes the position of the photoelectric tube 1, determines and drives the first motor 42 accurately through the controller, and grasps the position of the central axis of the photoelectric tube 1 toward the reflector 2 in real time; S3. The second motor 43 is controlled by the controller to achieve the upper and lower elevation angle calibration of the photoelectric tube 1 relative to the reflector 2; S4. The angle sensor on the shaft of the second motor 43 detects the rotation angle of the second motor 43 in real time and feeds it back to the controller. The controller analyzes the position of the photoelectric tube 1, determines and drives the second motor 43 accurately through the controller, and grasps the position of the central axis of the photoelectric tube 1 toward the reflector 2 in real time; Through the cooperation between the first motor 42 and the second motor 43 , the photoelectric tube 1 can be automatically calibrated accurately and quickly after analysis by the controller. Example 2
[0029] See also Figure 1 In order to further implement a photoelectric tube alignment method, this embodiment provides a photoelectric tube alignment device, including a photoelectric tube 1 and a reflector 2, and also includes a positioning component 3 and a calibration component 4, combined with Figure 2 and Figure 5 The positioning assembly 3 includes a positioning cylinder 31, a limiting ring 32 for fixing one end of the photoelectric tube 1 is arranged inside the positioning cylinder 31, and a supporting member 33 for limiting the other end of the photoelectric tube 1 is arranged inside the positioning cylinder 31; the calibration assembly 4 includes an adjusting member 41 arranged inside the positioning cylinder 31, the limiting ring 32 rotates inside the adjusting member 41 through the transmission shaft 321, and one end of the photoelectric tube 1 located inside the limiting ring 32 is aligned with the central axis of the transmission shaft 321.
[0030] See also Figure 2 , Figure 4 and Figure 5 , a placement slot is provided in the positioning cylinder 31, and the calibration component 4 includes a first motor 42 fixed in the placement slot, the output end of the first motor 42 is connected to the bottom of the adjusting member 41 through a transmission member, and an angle sensor is fixed on the output shaft of the first motor 42 to detect the rotation angle of the output shaft of the first motor 42, wherein the first motor 42 is a stepper motor, which is an open-loop control motor that converts an electrical pulse signal into an angular displacement or a linear displacement. Its working principle is based on electromagnetic induction, and the magnetic field generated by the stator winding will attract the rotor, causing it to rotate step by step according to a certain step angle. The stepper motor is a prior art and will not be described in detail here.
[0031] See also Figure 3 and Figure 4 The calibration component 4 includes a second motor 43 fixed to one side of the adjustment member 41, wherein the second motor 43 is a stepping motor, which is a prior art and will not be described in detail herein. The second motor 43 is connected to the transmission shaft 321 through a transmission member, and an angle sensor is fixedly connected to the output shaft of the second motor 43 to detect the rotation angle of the output shaft of the second motor 43. Figure 2 and Figure 3 A avoidance groove for avoiding the second motor 43 is opened in the positioning cylinder 31, and a controller is arranged in the positioning cylinder 31, wherein the controller is a prior art and will not be described in detail here.
[0032] See also Figures 1 to 7 The controller is electrically connected to the first motor 42 and the angle sensor fixed on the output shaft of the first motor 42 respectively. The controller is also electrically connected to the second motor 43 and the angle sensor fixed on the output shaft of the second motor 43 respectively. When the end face of the adjusting member 41 is perpendicular to the central axis of the positioning cylinder 31, the angle sensor at the output end of the first motor 42 measures that the rotation angle of the output shaft of the first motor 42 is zero. When the end face of the limit ring 32 is parallel to the end face of the adjusting member 41, and the central axis of the limit ring 32 coincides with the central axis of the positioning cylinder 31, the rotation angles measured by the angle sensor on the output shaft of the first motor 42 and the angle sensor on the output shaft of the second motor 43 are both zero.
[0033] See also Figure 2 and Figure 5 The support member 33 includes a movable member 331 fixed on its outer wall, the outer wall of the movable member 331 is movably connected to the inner wall of the positioning tube 31, the movable member 331 is electrically connected to the controller, and an electrorheological fluid is arranged in the movable member 331, wherein the movable member 331 is made of a flexible material, and an electrorheological fluid is arranged in its inner cavity. The electrorheological fluid is a suspension under normal conditions, and can undergo a liquid-to-solid transition under the action of an electric field. When the strength of the applied electric field is much lower than a certain critical value, the electrorheological fluid is in a liquid state; when the strength of the electric field is much higher than this critical value, the electrorheological fluid is transformed into a solid state. The electrorheological fluid is a prior art, and no further elaboration is given here. A base is arranged at the bottom of the positioning tube 31, and a workbench is connected to the reflector plate 2 and the bottom of the positioning tube 31, and the adjustment member 41 is a U-shaped component.
[0034] When in use, the first motor 42 is energized through the controller, and the rotation direction of the first motor 42 is controlled. The first motor 42 rotates to a set angle and drives the adjusting member 41 to rotate. The adjusting member 41 rotates to a set angle with the axis of the output shaft of the first motor 42 as the rotation center. When the output shaft of the first motor 42 rotates, the angle sensor fixed on the output shaft of the first motor 42 detects the rotation angle of the output shaft of the first motor 42 in real time and feeds it back to the controller. The controller compares and judges the data fed back by the first motor 42 and the angle sensor to prevent the first motor 42 from causing an error between the preset rotation angle and the actual rotation angle due to various factors such as load changes, motor loss of step, mechanical wear, etc., further ensuring the rotation accuracy of the first motor 42, and performing angle compensation on the first motor 42 through the controller to ensure that it is consistent with the data measured by the angle sensor, further preventing the problem of cumulative errors in the calibration of the photoelectric tube 1 due to loss of step or mechanical wear of the first motor 42.
[0035] When the adjusting member 41 rotates, the limiting ring 32 is driven by the transmission shaft 321 to rotate synchronously with the axis of the output shaft of the first motor 42 as the rotation center. When the limiting ring 32 rotates, the photoelectric tube 1 is driven to rotate. The end face of the photoelectric tube 1 follows the limiting ring 32 and rotates synchronously with the axis of the output shaft of the first motor 42 as the rotation center.
[0036] When the adjusting member 41 rotates, it drives the second motor 43 to move in the avoidance groove provided in the positioning tube 31. At the same time, the controller does not energize the movable member 331. When one end of the photoelectric tube 1 is deflected in the positioning tube 31, it drives the support member 33 and the movable member 331 to move synchronously. When the first motor 42 is powered off under the action of the controller, the electrorheological fluid in the movable member 331 is energized through the controller, so that the movable member 331 is in a solid state to further support the support member 33 and the photoelectric tube 1, thereby preventing the photoelectric tube 1 from loosening in the positioning tube 31 due to the instability of the working environment during operation, and further ensuring the accuracy of the photoelectric tube 1 during use after calibration.
[0037] When the photoelectric tube 1 is further adjusted by the second motor 43, the controller firstly cuts off the power to the electrorheological fluid in the movable part 331, and the electrorheological fluid in the movable part 331 changes from solid to liquid. The second motor 43 is energized by the controller, and the rotation direction and rotation angle of the second motor 43 are controlled. When the second motor 43 rotates to the set angle, it drives the transmission shaft 321 to rotate in the adjusting part 41. When the transmission shaft 321 rotates, the limit ring 32 rotates synchronously in the adjusting part 41 to the set angle with the axis of the output shaft of the second motor 43 as the rotation center. When the output shaft of the second motor 43 rotates, the stop ring 32 is fixed on the output shaft of the second motor 43. The angle sensor on the output shaft detects the rotation angle of the output shaft of the second motor 43 in real time and feeds it back to the controller. The controller compares the data fed back by the second motor 43 and the angle sensor to prevent the second motor 43 from causing errors between the preset rotation angle and the actual rotation angle due to various factors such as load changes, motor loss of step, mechanical wear, etc., further ensuring the rotation accuracy of the second motor 43, and performing angle compensation on the second motor 43 through the controller to ensure that it is consistent with the data measured by the angle sensor, further preventing the problem of cumulative errors in the calibration of the photoelectric tube 1 due to loss of step or mechanical wear of the second motor 43.
[0038] While the limiting ring 32 drives the photoelectric tube 1 to rotate in the adjusting member 41, the photoelectric tube 1 is located at one end of the limiting ring 32, the centerline axis of the photoelectric tube 1 and the centerline axis of the transmission shaft 321 are perpendicular to each other, and the end face center of the photoelectric tube 1 at one end located in the limiting ring 32 is on the centerline axis of the transmission shaft 321 and the output shaft axis of the second motor 43, and the end face of the photoelectric tube 1 and the end face center rotate to a set angle in the positioning tube 31 with the axis of the output shaft of the second motor 43 as the rotation center. Example 3
[0039] On the basis of the above embodiments, the above embodiments are further supplemented.
[0040] When the controller starts the first motor 42 and drives the first motor 42 to rotate a preset angle, the rotation angle detected by the angle sensor fixed on the output shaft of the first motor 42 is θ, the length of the photoelectric tube 1 is G, the distance between the center axis at the center of the end face of the photoelectric tube 1 and the reflector 2 is J, and the straight-line distance from the center axis at the center of the end face of the photoelectric tube 1 to the reflector 2 is L1.
[0041] Depend on Figure 6 It can be seen that the angle formed between L1 and L2 is θ, which is the angle at which the controller rotates the first motor 42 and the angle fed back by the angle sensor fixed on the output shaft of the first motor 42; L1 and the end face of the reflector 2 are perpendicular to each other, that is, the angle formed between L1 and the reflector 2 is a right angle, so it can be obtained that the triangle formed by L1, L2 and H1 is a right triangle, and the two acute angles of the right triangle should be complementary, so the angle formed by L2 and H1 is (90°-θ).
[0042] From the above, we can know that the two right-angled sides of the triangle are L1 and H1, and the hypotenuse is L2, according to the Pythagorean theorem.
[0043] Find the hypotenuse L2, according to the cosine function
[0044] but
[0045] Find the right angle side H1, according to the sine function
[0046] but
[0047] Depend on Figure 7 It can be seen that the angle formed between L1 and L2 is β, which is the angle at which the controller rotates the second motor 43 and the angle fed back by the angle sensor fixed on the output shaft of the second motor 43; L1 and the end face of the reflector 2 are perpendicular to each other, that is, the angle formed between L1 and the reflector 2 is a right angle, so it can be obtained that the triangle formed by L1, L2 and H2 is a right triangle, and the two acute angles of the right triangle should be complementary, so the angle formed by L2 and H2 is (90°-β).
[0048] From the above, we can know that the two right-angled sides of the triangle are L1 and H2, and the hypotenuse is L2, according to the Pythagorean theorem.
[0049] Find the hypotenuse L2, according to the cosine function
[0050] but
[0051] Find the right angle side H2, according to the sine function
[0052] but
[0053] In summary, the axis perpendicular to the centerline axis of the photoelectric tube 1 and the reflector 2, and the size of the perpendicular line between the end points of the centerline axis of the photoelectric tube 1 after deflection can be calculated through the above theorems and formulas. On the basis of the above embodiments, the first motor 42 and the second motor 43 cooperate with each other to accurately adjust the angle and deflection position between the photoelectric tube 1 and the reflector 2, thereby realizing fast, efficient and accurate calibration of the photoelectric tube 1.
[0054] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A photoelectric tube adjustment method, characterized in that: The following steps are involved: S1. The first motor (42) is controlled by a controller to achieve left and right angle calibration of the photoelectric tube (1) relative to the reflector (2); S2. The angle sensor on the rotating shaft of the first motor (42) detects the rotation angle of the first motor (42) in real time and feeds back to the controller. The controller analyzes the position of the photoelectric tube (1), determines and drives the first motor (42) accurately through the controller, and grasps the position of the central axis of the photoelectric tube (1) toward the reflective plate (2) in real time; S3. The second motor (43) is controlled by the controller to achieve the upper and lower elevation angle calibration of the photoelectric tube (1) relative to the reflector (2); S4. The angle sensor on the rotating shaft of the second motor (43) detects the rotation angle of the second motor (43) in real time and feeds back to the controller. The controller analyzes the position of the photoelectric tube (1), determines and drives the second motor (43) accurately through the controller, and grasps the position of the central axis of the photoelectric tube (1) toward the reflective plate (2) in real time.
2. A photoelectric tube alignment device, used in a photoelectric tube alignment method according to claim 1, comprising a photoelectric tube (1) and a reflector (2), characterized in that: Also includes: A positioning assembly (3), the positioning assembly (3) comprising a positioning cylinder (31), a limiting ring (32) for fixing one end of the photoelectric tube (1) being arranged inside the positioning cylinder (31), and a supporting member (33) for providing limiting support for the other end of the photoelectric tube (1) being arranged inside the positioning cylinder (31); A calibration component (4), the calibration component (4) comprising an adjusting member (41) arranged in a positioning cylinder (31), the limiting ring (32) rotating in the adjusting member (41) via a transmission shaft (321), and one end of the photoelectric tube (1) located in the limiting ring (32) being aligned with the central axis of the transmission shaft (321).
3. The alignment device according to claim 2, characterized in that: The positioning cylinder (31) has a placement slot formed therein, the calibration component (4) comprises a first motor (42) fixed in the placement slot, the output end of the first motor (42) being transmission-connected to the bottom of the adjustment member (41) via a transmission member, and an angle sensor being fixed on the output shaft of the first motor (42) for detecting the rotation angle of the output shaft of the first motor (42).
4. The alignment device according to claim 3, characterized in that: The calibration component (4) comprises a second motor (43) fixed to one side of the adjustment member (41); the second motor (43) is transmission-connected to the transmission shaft (321) via a transmission member; an angle sensor is fixedly connected to the output shaft of the second motor (43) for detecting the rotation angle of the output shaft of the second motor (43).
5. The alignment device according to claim 4, characterized in that: An escape groove for evading the second motor (43) is provided in the positioning cylinder (31), and a controller is provided in the positioning cylinder (31).
6. The alignment device according to claim 5, characterized in that: The controller is electrically connected to the first motor (42) and an angle sensor fixed on the output shaft of the first motor (42), and the controller is also electrically connected to the second motor (43) and an angle sensor fixed on the output shaft of the second motor (43).
7. The alignment device according to claim 6, characterized in that: When the end surface of the adjusting member (41) is perpendicular to the central axis of the positioning cylinder (31), the angle sensor at the output end of the first motor (42) measures that the rotation angle of the output shaft of the first motor (42) is zero.
8. The alignment device according to claim 7, characterized in that: When the end face of the limit ring (32) is parallel to the end face of the adjusting member (41), and the central axis of the limit ring (32) coincides with the central axis of the positioning cylinder (31), the rotation angles measured by the angle sensor on the output shaft of the first motor (42) and the angle sensor on the output shaft of the second motor (43) are both zero.
9. The alignment device according to claim 8, characterized in that: The support member (33) comprises a movable member (331) fixed to its outer wall, the outer wall of the movable member (331) being movably connected to the inner wall of the positioning cylinder (31), the movable member (331) being electrically connected to a controller, and an electrorheological fluid being arranged in the movable member (331).
10. The alignment device according to claim 9, characterized in that: The bottom of the positioning cylinder (31) is provided with a base, the reflecting plate (2) and the bottom of the positioning cylinder (31) are connected together with a workbench, and the adjusting member (41) is a U-shaped member.