Power transmission tower micro-displacement sensor for stepping adjustable mechanical transmission optical measurement

Abstract

The invention discloses a transmission tower micro-displacement sensor for stepping adjustable mechanical transmission optical measurement. The transmission tower micro-displacement sensor comprises a signal input module, a signal processing module, a signal output module, a position fixing module, a signal shielding module, a displacement conversion module and a displacement driving module, the signal input module can emit light wave signals, the signal processing module can focus the light wave signals, the signal output module can output the light wave signals, and the signal shielding module can shield the light wave signals emitted by the signal input module in the signal processing module. When the power transmission tower does not shift, light waves emitted by the signal input module are all reflected by the signal shielding module; when the power transmission tower deviates, the displacement driving module slides in the deviation direction of the power transmission tower so as to drive the displacement conversion module to move, the displacement conversion module drives the signal shielding module to deviate, and unshielded light wave signals enter the signal output module through the signal processing module.

Description

Technical Field

[0001] The invention belongs to the technical field of power transmission tower monitoring, and in particular relates to a power transmission tower micro-displacement sensor with step-adjustable mechanical transmission and optical measurement. Background Art

[0002] In the field of high-voltage power transmission, transmission towers play the role of bridges in power transmission lines. The safety and reliability of transmission towers are particularly important for power systems. Transmission towers are usually large steel structure towers, which may be affected by extreme weather, natural disasters, engineering construction and human damage, resulting in swaying and tilting of the towers. Therefore, micro-displacement monitoring of transmission towers is crucial for the safe operation of the power grid. Through micro-displacement monitoring of transmission towers, problems such as small changes in structural stress points can be discovered in time, thereby reducing equipment damage and improving the overall performance of the transmission system. At present, displacement sensors often face various electromagnetic and environmental interferences in practical applications, and traditional monitoring equipment also faces many challenges, such as complex operation, low sensitivity, and the complexity of wired connections that increase the cost of deployment and maintenance. With the advancement of technology, new wireless, optical and other innovative methods are gradually being applied to the field of micro-displacement sensors to overcome some limitations of traditional methods. Summary of the invention

[0003] The present invention provides a transmission tower micro-displacement sensor with step-adjustable mechanical transmission optical measurement, which combines light wave characteristics with mechanical transmission to solve the technical problems of complex operation, low sensitivity, high complexity of wired connection deployment, and increased deployment and maintenance costs of existing detection equipment.

[0004] The present invention provides a transmission tower micro-displacement sensor with step-adjustable mechanical transmission and optical measurement, which adopts the following technical solutions:

[0005] A transmission tower micro displacement sensor with step-adjustable mechanical transmission and optical measurement, comprising: a signal input module, a signal processing module, a signal output module, a position fixing module, a signal shielding module, a displacement conversion module, and a displacement driving module;

[0006] The signal processing module is connected to a signal input module and a signal output module at both sides, the signal input module can send out a light wave signal, the signal processing module includes a concave lens and a self-focusing lens for focusing the light wave signal, and the signal output module can receive and output the light wave signal;

[0007] The signal shielding module includes a filter, one end of which is located inside the signal processing module, and the filter can block the concave lens;

[0008] The position fixing module is detachably mounted on the tower rod; the displacement driving module is arranged on one side of the position fixing module, and the displacement driving module can slide along the direction in which the transmission tower is offset;

[0009] The displacement conversion module is arranged above the position fixing module, and the displacement conversion module includes a mechanical transmission mechanism, and the mechanical transmission mechanism is connected to the displacement driving module, and the displacement driving module converts the linear sliding into the rotational motion of the mechanical transmission mechanism;

[0010] The signal processing module and the signal shielding module are both arranged above the displacement conversion module, and the optical filter is connected to a mechanical transmission mechanism, and the mechanical transmission mechanism can drive the optical filter to shift;

[0011] When the transmission tower is not offset, the filter blocks the concave lens, and all the light waves emitted by the signal input module are reflected by the filter; when the transmission tower is offset, the mechanical transmission mechanism drives the filter to offset, and the unshielded light wave signal enters the signal output module through the concave lens and the self-focusing lens.

[0012] Preferably, the signal input module is a light generator, which can emit infrared light wave signals, and the infrared light wave signals enter the signal processing module through the incident optical fiber.

[0013] Preferably, the signal processing module further comprises a processing module housing, the concave lens and the self-focusing lens are located inside the processing module housing at one end close to the signal output module, and the end of the filter is inserted into the processing module housing.

[0014] Preferably, the inner wall of the processing module housing is coated with a carbon nanotube black coating to eliminate internal stray light.

[0015] Preferably, the signal shielding module further comprises a rotating seat, and one end of the filter away from the signal processing module is embedded in one side of the rotating seat.

[0016] Preferably, the mechanical transmission mechanism is located inside the conversion module housing, and the mechanical transmission mechanism includes a first bevel gear, a second bevel gear and a spur gear, a fixed key is provided at the top of the shaft where the first bevel gear is located, the shaft where the first bevel gear is located passes through the top of the conversion module housing, and the fixed key is embedded in the key hole of the rotating seat;

[0017] The second bevel gear is meshed with the first bevel gear, the shaft where the second bevel gear is located extends to the outside of the conversion module housing, and the spur gear is arranged at the other end of the shaft where the second bevel gear is located.

[0018] Preferably, the displacement drive module comprises a linear slide rail, a slider and a rack, the linear slide rail and the slider are slidably connected, the rack is arranged above the linear slide rail, and the spur gear is meshingly connected above the rack.

[0019] Preferably, the position fixing module includes an upper positioning plate, a lower positioning plate, a fixing plate, a mounting plate, a support plate, an adjusting bolt and a fixing bolt. The upper positioning plate and the lower positioning plate are respectively fixed at both ends of the fixing plate. The adjusting bolt passes through the lower positioning plate and is threadedly connected to the lower positioning plate. The support plate is fixed to the end of the adjusting bolt. The displacement conversion module is fixed to the mounting plate, and the mounting plate is connected to the upper positioning plate via a fixing bolt.

[0020] Preferably, the signal output module is connected to an optical power meter.

[0021] Preferably, the displacement sensors can be installed in the X-axis direction, Y-axis direction and Z-axis direction of the transmission tower respectively to realize three-dimensional displacement detection of the transmission tower.

[0022] Beneficial effects of the present invention:

[0023] The invention discloses a transmission tower micro-displacement sensor with step-adjustable mechanical transmission and optical measurement. During use, when the transmission tower has a displacement change, the displacement conversion module can quickly monitor it and drive the filter to move accordingly. At this time, the optical channel in the signal processing module is destroyed by the filter, and the signal output module can monitor the light intensity change in the signal processing module in real time, thereby outputting a corresponding optical intensity signal to achieve the purpose of measuring the displacement change of the transmission tower. Therefore, the present invention does not need to physically contact the iron tower structure, avoiding the interference and wear that may be introduced by traditional sensors, thereby extending the service life of the sensor and reducing maintenance costs; at the same time, the present invention has a compact structure, small size, and light weight. The signal shielding module as a whole adopts a rigid and hard material. When the signal shielding module undergoes a corresponding displacement, the device will not deform, reducing the measurement error of the sensor; the signal shielding module has a good refractive index, which makes the signal more stable during the transmission process, so as to accurately monitor tiny displacements; the signal shielding module, the displacement conversion module and the displacement driving module 7 are tightly connected through a mechanical structure, and then combined with the optical structure of the concave lens and the self-focusing lens in the signal processing module, the conversion of displacement-light wave signal is realized, which improves the displacement conversion efficiency and measurement accuracy of the sensor, and can realize micro-displacement measurement at the micron level, which is of great significance for the application in the field of high-precision displacement sensing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] For ease of explanation, the present invention is described in detail with reference to the following specific implementations and the accompanying drawings.

[0025] Figure 1Schematic diagram of the overall structure of this embodiment;

[0026] Figure 2 is a structural schematic diagram of a position fixing module of this embodiment;

[0027] Figure 3 is a structural schematic diagram of the signal shielding module of this embodiment;

[0028] Figure 4 is a structural schematic diagram of the displacement conversion module of this embodiment;

[0029] Figure 5 is a structural schematic diagram of a displacement driving module of this embodiment;

[0030] Figure 6 Schematic diagram of the internal structure of the displacement conversion module of this embodiment;

[0031] Figure 7 is a cross-sectional schematic diagram of a signal processing module of this embodiment;

[0032] Figure 8 This is a schematic diagram of the embodiment installed on a transmission tower pole.

[0033] In the figure:

[0034] 1-signal input module; 2-signal processing module; 21-concave lens; 22-self-focusing lens; 23-processing module housing; 3-signal output module; 4-position fixing module; 41-upper positioning plate; 42-lower positioning plate; 43-fixing plate; 44-mounting plate; 45-support plate; 46-adjusting bolt; 47-fixing bolt; 5-signal shielding module; 51-filter; 52-rotating seat; 521-key hole; 6-displacement conversion module; 61-conversion module housing; 62-first bevel gear; 621-fixing key; 63-second bevel gear; 64-spur gear; 7-displacement drive module; 71-linear slide rail; 72-slider; 73-rack; 8-transmission tower. DETAILED DESCRIPTION

[0035] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments; in the following description, specific details such as specific configurations and components are provided only to help fully understand the embodiments of the present invention. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. In addition, for the sake of clarity and brevity, the description of known functions and structures is omitted.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0037] like Figure 1-Figure 8 As shown, a transmission tower micro-displacement sensor with step-adjustable mechanical transmission optical measurement provided in this embodiment includes: a signal input module 1, a signal processing module 2, a signal output module 3, a position fixing module 4, a signal shielding module 5, a displacement conversion module 6, and a displacement driving module 7.

[0038] The signal processing module 2 is connected to the signal input module 1 and the signal output module 3 on both sides respectively. The signal input module 1 is an optical generator, which can emit infrared light wave signals. The infrared light wave signals enter the signal processing module 2 through the incident optical fiber. The signal processing module 2 includes a concave lens 21, a self-focusing lens 22 and a processing module housing 23. The concave lens 21 and the self-focusing lens 22 are located inside the processing module housing 23 near one end of the signal output module 3, and are used to focus the light wave signal. The signal output module 3 can receive and output light wave signals, and the signal output module 3 is connected to an optical power meter.

[0039] The signal shielding module 5 includes a filter 51 and a rotating seat 52. The end of the filter 51 is inserted into the processing module housing 23. The filter 51 can block the concave lens 21. The end of the filter 51 away from the signal processing module 2 is embedded in one side of the rotating seat 52. Specifically, the filter 51 is made of silicon carbide material and can effectively shield infrared light waves.

[0040] The position fixing module 4 is detachably mounted on the tower rod; the displacement driving module 7 is arranged on one side of the position fixing module 4, and the displacement driving module 7 can slide along the direction in which the transmission tower is offset; the displacement conversion module 6 is arranged above the position fixing module 4, and the displacement conversion module 6 includes a mechanical transmission mechanism, which is connected to the displacement driving module 7, and the displacement driving module 7 converts linear sliding into rotational motion of the mechanical transmission mechanism; the signal processing module 2 and the signal shielding module 5 are both arranged above the displacement conversion module 6, and the filter 51 is connected to the mechanical transmission mechanism, and the mechanical transmission mechanism can drive the filter 51 to offset.

[0041] During use of this embodiment, when the transmission tower is not offset, the filter 51 blocks the concave lens 21, and the infrared light waves emitted by the signal input module 1 are all reflected by the filter 51, then the signal output module 3 has no light wave signal output, and the optical power count value does not change at this time; when the transmission tower is offset, the displacement drive module 7 slides in the direction of the offset of the transmission tower, thereby driving the mechanical transmission mechanism to rotate, and then the mechanical transmission mechanism drives the filter 51 to offset, and the unshielded light wave signal enters the signal output module 3 through the concave lens 21 and the self-focusing lens 22. The intensity of the light wave signal is affected by the position state of the filter 51, so that the signal output module 3 receives the light wave signal with corresponding intensity change, transmits it to the optical power meter, and then reads the value to obtain the small displacement of the transmission tower.

[0042] This embodiment converts the actual displacement of the transmission tower into a change in the light wave signal through mechanical transmission. Specifically, when the tower is displaced, the displacement conversion module 6 converts the displacement into the movement of the filter 51 in the signal shielding module 5, so that the intensity of the light wave signal changes. The signal output module 3 detects the intensity change of the light wave signal and transmits it to the optical power meter. In this way, the system can accurately capture and respond to the displacement of the tower. The optical channel formed by the concave lens 21 and the self-focusing lens 22 of the signal processing module 2 is stable, ensuring that the light wave signal always maintains the focusing device, which can efficiently transmit the displacement change of the transmission tower and enhance the sensitivity of the detection of tiny positions. In addition, The sensor of this embodiment may be affected by vibration, temperature, electromagnetic field changes, etc. in the working environment, which will cause the focal position of the optical system to change. The adaptability of the self-focusing lens helps to offset the influence of these environmental factors on the focal position, thereby improving the sensor's anti-interference ability to the external environment, that is, expanding the application scope of the sensor, and also helping to improve the long-term stability of the sensor, ensuring the reliability of the sensor, and simplifying the calibration operation of the sensor; due to the self-adjusting nature of the self-focusing lens, the sensor can flexibly adapt to small displacement measurements within different ranges, which means that the sensor can maintain high performance when processing displacements of different scales, thereby expanding its scope of application.

[0043] When the transmission tower shows a displacement change, the displacement conversion module 6 can monitor it quickly and drive the filter 51 to move accordingly. At this time, the optical channel in the signal processing module 2 is destroyed by the filter 51, and the signal output module 3 can monitor the light intensity change in the signal processing module in real time, thereby outputting the corresponding optical intensity signal to achieve the purpose of measuring the displacement change of the transmission tower. Therefore, the present embodiment does not need to physically contact the iron tower structure, thus avoiding the interference and wear that may be introduced by traditional sensors, thereby extending the service life of the sensor and reducing maintenance costs; at the same time, the present invention has a compact structure, small size, and light weight. The signal shielding module as a whole adopts a rigid and hard material. When the signal shielding module undergoes a corresponding displacement, the device will not deform, thereby reducing the measurement error of the sensor; the signal shielding module 5 has a good refractive index, which makes the signal more stable during the transmission process, so as to accurately monitor tiny displacements; the signal shielding module 5, the displacement conversion module 6 and the displacement driving module 7 are tightly connected through a mechanical structure, and then combined with the optical structure of the concave lens 21 and the self-focusing lens 22 of the signal processing module 2, the conversion of displacement-light wave signals is realized, which improves the displacement conversion efficiency and measurement accuracy of the sensor, and can realize micro-displacement measurement at the micron level, which is of great significance for the application in the field of high-precision displacement sensing.

[0044] In this embodiment, the inner wall of the processing module housing 23 is coated with a carbon nanotube black coating, which can eliminate stray light inside the signal processing module 2 to the greatest extent, help prevent stray light from reflecting inside the signal processing module, thereby reducing interference with the light wave signal and ensuring the purity and accuracy of the signal, so that this embodiment can more accurately capture slight changes in the optical signal and improve the measurement resolution and the anti-interference ability of the device.

[0045] In this embodiment, the mechanical transmission mechanism is located inside the conversion module housing 61, and the mechanical transmission mechanism includes a first bevel gear 62, a second bevel gear 63 and a spur gear 64. A fixed key 621 is provided at the top of the shaft where the first bevel gear 62 is located. The shaft where the first bevel gear 62 is located passes through the top of the conversion module housing 61, and the fixed key 621 is embedded in the key hole 521 of the rotating seat 52; the second bevel gear 63 is meshed with the first bevel gear 62, and the shaft where the second bevel gear 63 is located extends to the outside of the conversion module housing 61, and the spur gear 64 is arranged at the other end of the shaft where the second bevel gear 63 is located. The displacement drive module 7 includes a linear slide 71, a slider 72 and a rack 73. The linear slide 71 is slidably connected to the slider 72, the rack 73 is arranged above the linear slide 71, and the spur gear 64 is meshed and connected above the rack 73. Specifically, when the tower is displaced, under the action of inertia and gravity, the linear slide rail 71 drives the rack 73 to move in the direction where the transmission tower is offset, and the spur gear 64 meshing with the rack 73 rotates accordingly, thereby driving the second bevel gear 63 to rotate, and the first bevel gear 62 meshing with the second bevel gear 63 rotates. Since the first bevel gear 62 is fixed to the rotating seat 52 by the fixing key 621, the rotating seat 52 and the filter 51 rotate accordingly, and the filter 51 is offset inside the processing module housing 23, so that the unshielded light wave signal is focused by the concave lens 21 and the self-focusing lens 22 and enters the signal output module 3. The signal output module 3 can monitor the light intensity changes in the signal processing module in real time, thereby outputting the corresponding optical intensity signal to the optical power meter.

[0046] In this embodiment, the position fixing module 4 includes an upper positioning plate 41, a lower positioning plate 42, a fixing plate 43, a mounting plate 44, a support plate 45, an adjusting bolt 46 and a fixing bolt 47. The upper positioning plate 41 and the lower positioning plate 42 are fixed at both ends of the fixing plate 43 respectively. The adjusting bolt 46 passes through the lower positioning plate 42 and is threadedly connected to the lower positioning plate 42. The support plate 45 is fixed to the end of the adjusting bolt 46; the displacement conversion module 6 is fixed on the mounting plate 44, and the mounting plate 44 is connected to the upper positioning plate 41 through the fixing bolt 47. Specifically, the displacement sensor of the present embodiment is installed on the transmission tower 8 through the position fixing module 4, so that the transmission tower rod is located between the upper positioning plate 41 and the lower positioning plate 42, and the four adjusting bolts 46 below the position fixing module 4 are rotated, and the supporting plates 45 on the four adjusting bolts 46 are adjusted to be close to the transmission tower rod and pressed, so as to realize the connection and fixation of the position fixing module 4 with the transmission tower rod, ensure that the displacement driving module 7 is tightly fitted with the iron transmission tower rod, and at the same time, the two fixing bolts 47 above the position fixing module 4 are rotated, so that the sensor of the present embodiment is connected to the transmission tower rod, thereby ensuring the stability of the system and the real-time performance of the sensor monitoring.

[0047] The displacement sensor of this embodiment can be installed in the X-axis direction, Y-axis direction, and Z-axis direction of the transmission tower respectively to detect the displacement change of the transmission tower in three dimensions and meet the measurement requirements of different dimensions.

[0048] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0049] In the description of the present application, it should be understood that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

Claims

1. A transmission tower micro-displacement sensor with step-adjustable mechanical transmission and optical measurement, characterized in that: include: A signal input module (1), a signal processing module (2), a signal output module (3), a position fixing module (4), a signal shielding module (5), a displacement conversion module (6), and a displacement driving module (7); The signal processing module (2) is connected to a signal input module (1) and a signal output module (3) on both sides respectively; the signal input module (1) is capable of emitting a light wave signal; the signal processing module (2) comprises a concave lens (21) and a self-focusing lens (22) for focusing the light wave signal; and the signal output module (3) is capable of receiving and outputting the light wave signal; The signal shielding module (5) comprises a filter (51), one end of the filter (51) is located inside the signal processing module (2), and the filter (51) is capable of shielding the concave lens (21); The position fixing module (4) is detachably mounted on a transmission tower rod; the displacement driving module (7) is arranged on one side of the position fixing module, and the displacement driving module (7) is capable of sliding along a direction in which the transmission tower is offset; The displacement conversion module (6) is arranged above the position fixing module (4), the displacement conversion module (6) comprises a mechanical transmission mechanism, the mechanical transmission mechanism is connected to the displacement driving module (7), and the displacement driving module (7) converts linear sliding into rotational motion of the mechanical transmission mechanism; The signal processing module (2) and the signal shielding module (5) are both arranged above the displacement conversion module (6); the optical filter (51) is connected to a mechanical transmission mechanism, and the mechanical transmission mechanism is capable of driving the optical filter (51) to deflect; When the transmission tower is not deviated, the optical filter (51) blocks the concave lens (21), and all light waves emitted by the signal input module (1) are reflected by the optical filter (51); when the transmission tower is deviated, the mechanical transmission mechanism drives the optical filter (51) to deviate, and the unshielded light wave signal passes through the concave lens (21) and the self-focusing lens (22) and then enters the signal output module (3).

2. The transmission tower micro-displacement sensor with step-adjustable mechanical transmission and optical measurement according to claim 1 is characterized in that: The signal input module (1) is a light generator, which can emit infrared light wave signals, and the infrared light wave signals enter the signal processing module (2) through the incident optical fiber.

3. The transmission tower micro-displacement sensor with step-adjustable mechanical transmission and optical measurement according to claim 1 is characterized in that: The signal processing module (2) further comprises a processing module housing (23), the concave lens (21) and the self-focusing lens (22) are located inside the processing module housing (23) at one end close to the signal output module (3), and the end of the filter (51) is inserted into the processing module housing (23).

4. The transmission tower micro-displacement sensor with step-adjustable mechanical transmission and optical measurement according to claim 3 is characterized in that: The inner wall of the processing module housing (23) is coated with a carbon nanotube black coating to eliminate internal stray light.

5. The transmission tower micro-displacement sensor with step-adjustable mechanical transmission and optical measurement according to claim 1 is characterized in that: The signal shielding module (5) further comprises a rotating seat (52), and one end of the optical filter (51) away from the signal processing module (2) is embedded in one side of the rotating seat (52).

6. The transmission tower micro-displacement sensor with step-adjustable mechanical transmission and optical measurement according to claim 5 is characterized in that: The mechanical transmission mechanism is located inside the conversion module housing (61), and comprises a first bevel gear (62), a second bevel gear (63) and a spur gear (64); a fixing key (621) is provided at the top of the shaft where the first bevel gear (62) is located, the shaft where the first bevel gear (62) is located passes through the top of the conversion module housing (61), and the fixing key (621) is embedded in the key hole (521) of the rotating seat (52); The second bevel gear (63) meshes with the first bevel gear (62), the shaft on which the second bevel gear (63) is located extends to the outside of the conversion module housing (61), and the spur gear (64) is arranged at the other end of the shaft on which the second bevel gear (63) is located.

7. The transmission tower micro-displacement sensor with step-adjustable mechanical transmission and optical measurement according to claim 6 is characterized in that: The displacement drive module (7) comprises a linear slide rail (71), a slider (72) and a rack (73); the linear slide rail (71) and the slider (72) are slidably connected to each other; the rack (73) is arranged above the linear slide rail (71); and the spur gear (64) is meshingly connected above the rack (73).

8. The transmission tower micro-displacement sensor with step-adjustable mechanical transmission and optical measurement according to claim 1 is characterized in that: The position fixing module (4) comprises an upper positioning plate (41), a lower positioning plate (42), a fixing plate (43), a mounting plate (44), a supporting plate (45), an adjusting bolt (46) and a fixing bolt (47); the fixing plate (43) has two ends respectively fixing the upper positioning plate (41) and the lower positioning plate (42); the adjusting bolt (46) penetrates the lower positioning plate (42) and is threadedly connected to the lower positioning plate (42); the supporting plate (45) is fixed to the end of the adjusting bolt (46); the displacement conversion module (6) is fixed to the mounting plate (44); and the mounting plate (44) is connected to the upper positioning plate (41) via the fixing bolt (47).

9. The transmission tower micro-displacement sensor with step-adjustable mechanical transmission and optical measurement according to claim 1 is characterized in that: The signal output module (3) is connected to an optical power meter.

10. The transmission tower micro-displacement sensor with step-adjustable mechanical transmission and optical measurement according to claim 1, characterized in that: The displacement sensors can be installed in the X-axis direction, Y-axis direction and Z-axis direction of the transmission tower (8) respectively, so as to realize three-dimensional displacement detection of the transmission tower.

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