A hand-held quick response omni-directional wind speed sensor

Abstract

The application discloses a handheld quick-response omnidirectional wind speed sensor, which comprises a first sensing assembly, a second sensing assembly, a first protection mechanism, a handheld assembly, a second protection mechanism and a third protection mechanism, the first sensing assembly comprises a sensor acquisition circuit board, two installation grooves are formed in one side of the sensor acquisition circuit board, a wind temperature sensor and a wind speed temperature compensation sensor are respectively installed on the inner walls of the two installation grooves, the second sensing assembly comprises a wind sensing sensor, a base is arranged on the back of the sensor acquisition circuit board, and the wind sensing sensor is installed at the end of the base. The first sensing assembly, the second sensing assembly and the first protection mechanism are arranged, so that the omnidirectional handheld wind speed sensor with a spherical surface of 360 degrees can be realized, the specially designed packaging structure solves the omnidirectional problem, solves the compensation temperature precision guarantee problem, guarantees the accuracy of the wind speed, and makes the test precision in the range of 0-2 m / s improved to within ± (0.05 m / s+2%)

Description

Technical Field

[0001] This invention relates to the field of wind speed measurement technology, and in particular to a handheld, fast-response omnidirectional wind speed sensor. Background Technology

[0002] In general, air is constantly moving in non-completely enclosed environments, caused by thermal convection, external disturbances, and mechanical drafts. Especially in buildings with air conditioning or fresh air systems, airflow often exhibits irregular turbulence with frequent and unpredictable changes, exhibiting a random and dynamic state. Furthermore, wind speeds in such environments are typically low, mostly below 2 m / s. This low airflow velocity significantly impacts the comfort and even health of people working or producing in such environments, as it directly affects the rate of heat exchange on the human body surface, influencing perceived temperature and the body's thermal balance. Therefore, real-time monitoring and control of airflow velocity are often necessary.

[0003] In the aforementioned low-wind-speed, unsteady-state airflow environments, accurately capturing rapidly changing airflow states requires sensors with very high response speeds, typically less than 1 second. Simultaneously, the anemometer needs to be non-directionally selective, capable of measuring wind from three-dimensional directions on a spherical surface, with consistent measurement characteristics across all directions. Currently, only thermal anemometers are suitable for this scenario. Furthermore, for thermal anemometers, accurate measurement requires automatic temperature compensation of the anemometer probe and secondary, more accurate correction through simultaneous monitoring of air temperature.

[0004] The main challenges in designing and manufacturing omnidirectional wind speed sensors are as follows: the sensor itself has high thermal inertia, resulting in a long response time, generally over 3-5 seconds, and sometimes over 10 seconds; structural limitations prevent the measurement of omnidirectional wind speed; the compensation temperature sensor and ambient temperature measurement are affected by the heating of the circuit and the wind speed sensor head, leading to inaccuracies and values ​​that are significantly higher than the actual temperature, thus affecting the rationality and accuracy of the wind speed readings; the acquisition circuit is complex and difficult to make into a handheld integrated device. Therefore, we propose a handheld, fast-response omnidirectional wind speed sensor. Summary of the Invention

[0005] The purpose of this invention is to provide a handheld, fast-response omnidirectional wind speed sensor to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a handheld, fast-response omnidirectional wind speed sensor, comprising:

[0007] The first sensing component includes a sensor acquisition circuit board. Two mounting slots are provided on one side of the sensor acquisition circuit board, and a wind temperature sensor and a wind speed and temperature compensation sensor are respectively installed on the inner walls of the two mounting slots.

[0008] The second sensing component includes a wind sensor. A base is provided on the back of the sensor acquisition circuit board, and the wind sensor is mounted on the end of the base.

[0009] The first protective mechanism is located outside the sensor acquisition circuit board;

[0010] A handheld component, wherein the handheld component is disposed on the front of the first protective mechanism;

[0011] The second protective mechanism is located outside the wind sensor;

[0012] The third protective mechanism is slidably disposed outside the second protective mechanism.

[0013] Preferably, the first protective mechanism includes a sensor tube, the outer wall of which has two sets of ventilation slots, each set having multiple ventilation slots arranged in a circular array. The sensor tube is fitted over the outside of the sensor acquisition circuit board, and the positions of the two sets of ventilation slots correspond to the positions of the wind temperature sensor and the wind speed and temperature compensation sensor, respectively.

[0014] Preferably, the handheld component includes a circuit protection tube, a first connecting mechanism is provided between the circuit protection tube and the sensor protection tube, a connecting rod is provided on the front side of the circuit protection tube, a second connecting mechanism is provided between the circuit protection tube and the connecting rod, a plug is provided on the front side of the connecting rod, a third connecting mechanism is provided between the plug and the connecting rod, and the outer wall of the plug is provided with anti-slip texture.

[0015] Preferably, the first connecting mechanism includes a first threaded tube, which is fixedly connected to the front side of the sensor protective tube. The outer wall of the first threaded tube is threadedly connected to the inner wall of the circuit protective tube, and the outer wall of the circuit protective tube is provided with a reinforcing mechanism.

[0016] Preferably, the reinforcement mechanism includes a first threaded hole, which is formed on the outer wall of the circuit protection tube, and a set screw is threadedly connected to the inner wall of the first threaded hole.

[0017] Preferably, the second connecting mechanism includes a second threaded tube, the second threaded tube being fixedly connected to the back of the connecting rod, and the outer wall of the second threaded tube being threadedly connected to the inner wall of the circuit protection tube. The third connecting mechanism includes a third threaded tube, the third threaded tube being fixedly connected to the back of the plug, and the outer wall of the third threaded tube being threadedly connected to the inner wall of the connecting rod.

[0018] Preferably, the second protective mechanism includes a first connecting ring, a second connecting ring, and a plurality of arc-shaped rods. The plurality of arc-shaped rods are disposed between the first connecting ring and the second connecting ring, and the plurality of arc-shaped rods are arranged in a ring array. The inner wall of the first connecting ring is threadedly connected to a fourth threaded tube, and the fourth threaded tube is fixedly connected to the back of the sensor protective tube.

[0019] Preferably, the third protective mechanism includes a protective sleeve, which is fitted onto the outer wall of the circuit protective tube. Two sets of positioning mechanisms are provided between the protective sleeve and the circuit protective tube, and a sliding mechanism is provided between the protective sleeve and the circuit protective tube.

[0020] Preferably, the positioning mechanism includes a retaining ball, the inner wall of the protective sleeve has a movable cavity, the retaining ball is movably engaged with the inner wall of the movable cavity, the outer wall of the circuit protection tube has two slots, the outer wall of the retaining ball is fitted with the inner wall of one of the slots, a spring is provided between the outer wall of the retaining ball and the inner wall of the movable cavity, the outer wall of the protective sleeve has a second threaded hole, the interior of the second threaded hole is connected to the interior of the movable cavity, and a locking bolt is threadedly connected to the inner wall of the second threaded hole.

[0021] Preferably, the sliding mechanism includes a limiting slider, a limiting groove is formed on the outer wall of the circuit protective tube, the outer wall of the limiting slider is slidably connected to the inner wall of the limiting groove, a third threaded hole is formed on the outer wall of the protective sleeve, a fixing bolt is threadedly connected to the inner wall of the third threaded hole, a positioning hole is formed on the outer wall of the limiting slider, and the outer wall of the fixing bolt is movably inserted into the inner wall of the positioning hole.

[0022] The technical effects and advantages of this invention are as follows:

[0023] (1) The present invention utilizes the first sensing component, the second sensing component and the first protective mechanism to realize a 360° omnidirectional handheld wind speed sensor. The specially designed packaging structure solves the problem of omnidirectionality and the problem of ensuring the accuracy of temperature compensation, thus ensuring the accuracy of wind speed and improving the test accuracy to within ±(0.05m / s+2%) in the range of 0-2m / s.

[0024] (2) The present invention utilizes the setting of the protective sleeve. By sliding the protective sleeve on the outer wall of the circuit tube, the protective sleeve can slide to block the ventilation groove outside the sensor tube, thereby protecting the wind speed sensor and the wind speed and temperature compensation sensor when the wind speed sensor is not in use. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 This is a schematic diagram of the three-dimensional structure of the circuit protection tube of the present invention.

[0027] Figure 3 This is a schematic diagram of the separate structure of the circuit protection tube of the present invention.

[0028] Figure 4 This is a schematic diagram of the front cross-sectional structure of the protective sleeve of the present invention.

[0029] Figure 5 For the present invention Figure 3 A magnified schematic diagram of the structure at point A.

[0030] Figure 6 For the present invention Figure 3 A partial enlarged structural diagram of point B.

[0031] Figure 7 For the present invention Figure 3 A partial enlarged structural diagram of point C.

[0032] Figure 8 For the present invention Figure 3 A partial enlarged structural diagram of point D.

[0033] Figure 9 For the present invention Figure 3 A magnified structural diagram of point E.

[0034] Figure 10 For the present invention Figure 4 A partially enlarged schematic diagram of the mechanism at point F.

[0035] Figure 11 For the present invention Figure 4 A partially enlarged schematic diagram of the mechanism at point G.

[0036] In the diagram: 11. Sensor acquisition circuit board; 12. Mounting slot; 13. Wind temperature sensor; 14. Wind speed and temperature compensation sensor; 15. Base; 16. Wind sensor; 17. Sensor protective tube; 18. Ventilation slot; 21. Circuit protective tube; 22. First threaded tube; 23. First threaded hole; 24. Set screw; 31. Connecting rod; 32. Second threaded tube; 33. Plug; 34. Third threaded tube; 35. Anti-slip texture; 41. First connecting ring; 42. Second connecting ring; 43. Arc rod; 44. Fourth threaded tube; 51. Protective sleeve; 52. Movable cavity; 53. Ball retainer; 54. Bayonet; 55. Spring; 56. Second threaded hole; 57. Locking bolt; 61. Limiting groove; 62. Limiting slider; 63. Third threaded hole; 64. Fixing bolt; 65. Positioning hole. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] This invention provides, for example Figure 1-11 The handheld, fast-response omnidirectional wind speed sensor shown includes a first sensing component, a second sensing component, a first protective mechanism, a handheld mechanism, a second protective mechanism, and a third protective mechanism. The first sensing component includes a sensor acquisition circuit board 11. Two mounting slots 12 are formed on one side of the sensor acquisition circuit board 11. A wind temperature sensor 13 and a wind speed and temperature compensation sensor 14 are respectively installed on the inner walls of the two mounting slots 12. Both mounting slots 12 are elongated holes. The wind temperature sensor 13 and the wind speed and temperature compensation sensor 14 are installed inside the two mounting slots 12 by welding. The edge width of the two sensor acquisition circuit boards 11 is less than 1mm, which minimizes the thermal bridge effect, isolates the heat transfer of the circuit or the wind speed head, and also minimizes the obstruction of the side wind.

[0039] The second sensing component includes a wind sensor 16. A base 15 is provided on the back of the sensor acquisition circuit board 11. The wind sensor 16 is mounted on the end of the base 15. The wind sensor 16 is clipped onto the end of the base 15. Then, the two pins of the wind sensor 16 are soldered to the sensor acquisition circuit board 11, and the wind sensor 16 is glued to the back of the sensor acquisition circuit board 11 with structural adhesive, so that the base 15 and the sensor acquisition circuit board 11 are integrated. The wind sensor 16 consists of a spherical miniature glass-encapsulated sensor and a double-hole quartz glass tube. The diameter of the wind sensor 16 is less than 0.4 mm, which minimizes its thermal inertia and high response characteristics. The double-hole quartz glass tube of the wind sensor 16 is fixed on the base 15, so that the wind sensor 16 is connected to the base 15. The sensor acquisition circuit board 11 is provided with... Various necessary electronic components are used to provide current to the wind sensor 16, ensuring a constant power supply. The wind sensor 16 has different heat dissipation rates depending on the external wind speed. The voltage and current applied to the wind sensor 16 are collected by the sensor acquisition circuit board 11, and its power change is calculated. The power at zero wind speed is calculated by using the air temperature, and the current wind speed can be calculated. That is, the wind speed and the power change have a certain functional relationship. The key point is the temperature compensation at zero wind speed. The sensor acquisition circuit board 11 is equipped with hardware compensation and software compensation. Hardware temperature compensation is achieved by using the NTC resistor in the bridge circuit to achieve a certain amount of compensation for different ambient temperatures. In addition, the wind temperature sensor 13 is set to monitor the current ambient temperature in real time in order to calculate the base power at the current zero wind speed and make corrections. The dual compensation scheme ensures the accuracy of the wind speed.

[0040] The first protective mechanism is located outside the sensor acquisition circuit board 11. The first protective mechanism includes a sensor protective tube 17. The outer wall of the sensor protective tube 17 has two sets of ventilation slots 18. There are multiple ventilation slots 18 in each set. The multiple ventilation slots 18 are arranged in a ring array. The sensor protective tube 17 is sleeved on the outside of the sensor acquisition circuit board 11. The positions of the two sets of ventilation slots 18 correspond to the positions of the wind temperature sensor 13 and the wind speed and temperature compensation sensor 14, respectively. The ventilation slots 18 are elongated holes. There can be 6 or 8 ventilation slots in one set. This is used to improve ventilation flow, enhance the smoothness of airflow from different directions, and reduce the impact of structural obstruction on wind temperature.

[0041] The handheld component is located on the front of the first protective mechanism. The handheld component includes a circuit tube 21. A first connecting mechanism is provided between the circuit tube 21 and the sensor tube 17. A connecting rod 31 is provided on the front of the circuit tube 21. A second connecting mechanism is provided between the circuit tube 21 and the connecting rod 31. A plug 33 is provided on the front of the connecting rod 31. A third connecting mechanism is provided between the plug 33 and the connecting rod 31. The outer wall of the plug 33 is provided with anti-slip texture 35. After the first and second sensing components are assembled, the sensor acquisition circuit board 11 is fitted with a fixing sleeve and a sealing ring. Then, the sensor acquisition circuit board 11 is inserted into the sensor tube 17. Then, the circuit tube 21 is fitted onto the outer wall of the sensor acquisition circuit board 11. The fixing sleeve is made of a polymer material with good heat insulation. The sealing ring tightly seals the air between the circuit tube 21 and the sensor tube 17, avoiding the heat effect brought by air circulation.

[0042] The first connecting mechanism includes a first threaded tube 22, which is fixedly connected to the front of the sensor protective tube 17. The outer wall of the first threaded tube 22 is threadedly connected to the inner wall of the circuit protective tube 21. The outer wall of the circuit protective tube 21 is provided with a reinforcing mechanism. By screwing the first threaded tube 22 into the circuit protective tube 21, the sensor protective tube 17 and the circuit protective tube 21 can be connected.

[0043] The reinforcement mechanism includes a first threaded hole 23, which is opened on the outer wall of the circuit protection tube 21. A set screw 24 is threadedly connected to the inner wall of the first threaded hole 23. By tightening the set screw 24 in the first threaded hole 23, the set screw 24 tightly abuts against the first threaded tube 22, thereby making the sensor protection tube 17 and the circuit protection tube 21 stably connected.

[0044] The second connecting mechanism includes a second threaded tube 32, which is fixedly connected to the back of the connecting rod 31. The outer wall of the second threaded tube 32 is threadedly connected to the inner wall of the circuit protection tube 21. The third connecting mechanism includes a third threaded tube 34, which is fixedly connected to the back of the plug 33. The outer wall of the third threaded tube 34 is threadedly connected to the inner wall of the connecting rod 31. By screwing the second threaded tube 32 into the circuit protection tube 21, the connecting rod 31 and the circuit protection tube 21 can be connected. By screwing the third threaded tube 34 into the connecting rod 31, the plug 33 and the connecting rod 31 can be stably connected.

[0045] The second protective mechanism is located outside the wind sensor 16. The second protective mechanism includes a first connecting ring 41, a second connecting ring 42, and multiple arc-shaped rods 43. The multiple arc-shaped rods 43 are arranged between the first connecting ring 41 and the second connecting ring 42 in a circular array. The inner wall of the first connecting ring 41 is threaded with a fourth threaded tube 44. The fourth threaded tube 44 is fixedly connected to the back of the sensor protective tube 17. By screwing the fourth threaded tube 44 into the first connecting ring 41, the first connecting ring 41 can be fixed to the sensor protective tube 17. The multiple arc-shaped rods 43 can protect the wind sensor 16 and prevent it from being damaged by impacts from large objects.

[0046] The third protective mechanism is slidably disposed outside the second protective mechanism. The third protective mechanism includes a protective sleeve 51, which is sleeved on the outer wall of the circuit tube 21. Two sets of positioning mechanisms are provided between the protective sleeve 51 and the circuit tube 21, and a sliding mechanism is provided between the protective sleeve 51 and the circuit tube 21. By setting the protective sleeve 51, the wind speed sensor can be moved through the protective sleeve 51 when not in use, so that the protective sleeve 51 covers the sensor tube 17, thereby preventing the multiple ventilation slots 18 from being connected to the outside, thus protecting the wind temperature sensor 13 and the wind speed and temperature compensation sensor 14.

[0047] The positioning mechanism includes a retaining ball 53. The inner wall of the protective sleeve 51 has a movable cavity 52. ​​The retaining ball 53 is movably engaged with the inner wall of the movable cavity 52. ​​The outer wall of the circuit protection tube 21 has two slots 54. The outer wall of the retaining ball 53 is fitted with the inner wall of one of the slots 54. A spring 55 is provided between the outer wall of the retaining ball 53 and the inner wall of the movable cavity 52. ​​The outer wall of the protective sleeve 51 has a second threaded hole 56. The interior of the second threaded hole 56 is connected to the interior of the movable cavity 52. ​​A locking bolt 57 is threadedly connected to the inner wall of the second threaded hole 56. Due to the spring 55, the retaining ball 53 tends to move towards the slot 54. Then, by tightening the locking bolt 57 inside the second threaded hole 56, the locking bolt 57 tightly abuts against the retaining ball 53, thereby securing the retaining ball 53 tightly in the corresponding slot 54. This fixes the protective sleeve 51 on the outer wall of the circuit protection tube 21, thus improving the stability of the protective sleeve 51 in use.

[0048] The sliding mechanism includes a limiting slider 62. A limiting groove 61 is formed on the outer wall of the circuit protection tube 21. The outer wall of the limiting slider 62 is slidably connected to the inner wall of the limiting groove 61. A third threaded hole 63 is formed on the outer wall of the protective sleeve 51. A fixing bolt 64 is threadedly connected to the inner wall of the third threaded hole 63. A positioning hole 65 is formed on the outer wall of the limiting slider 62. The outer wall of the fixing bolt 64 is movably inserted into the inner wall of the positioning hole 65. By tightening the fixing bolt 64 in the third threaded hole 63 and inserting the fixing bolt 64 into the positioning hole 65, the limiting slider 62 is connected to the protective sleeve 51. Thus, the movement of the protective sleeve 51 can drive the limiting slider 62 to move. The limiting groove 61 limits the limiting slider 62, so that the protective sleeve 51 will not rotate when moving on the outer wall of the circuit protection tube 21, thereby ensuring the stable use of the positioning mechanism.

[0049] Working principle of this invention:

[0050] The voltage and current applied by the wind sensor 16 are collected by the sensor acquisition circuit board 11, and the power change is calculated. The power at zero wind speed is calculated by the air temperature, and the current wind speed can be calculated. That is, the wind speed and the power change have a certain functional relationship. The key point is the temperature compensation at zero wind speed. The sensor acquisition circuit board 11 is equipped with hardware compensation and software compensation. Hardware temperature compensation is achieved by the NTC resistor in the bridge circuit to compensate for different ambient temperatures. In addition, the current ambient temperature is monitored in real time by the wind temperature sensor 13 so as to calculate the base power at the current zero wind speed and make corrections.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hand-held quick response omni-directional wind speed sensor characterized by, The utility model relates to a kind of wind speed and temperature sensor, including: First sensing component, the first sensing component includes sensor acquisition circuit board (11), one side of the sensor acquisition circuit board (11) is equipped with two installation grooves (12), the inner wall of two installation grooves (12) is respectively equipped with air temperature sensor (13) and air speed temperature compensation sensor (14); Second sensing component, the second sensing component includes wind sensor (16), the back of the sensor acquisition circuit board (11) is provided with pedestal (15), and the wind sensor (16) is installed at the end of the pedestal (15); First protection mechanism, the first protection mechanism is arranged outside the sensor acquisition circuit board (11); Handheld component, the handheld component is arranged on the front of the first protection mechanism; Second protection mechanism, the second protection mechanism is arranged outside the wind sensor (16); Third protection mechanism, the third protection mechanism is slidably arranged outside the first protection mechanism, and the third protection mechanism includes a protective sleeve (51), the protective sleeve (51) is sleeved on the outer wall of the circuit protection pipe (21), two sets of positioning mechanisms are arranged between the protective sleeve (51) and the circuit protection pipe (21), a sliding mechanism is arranged between the protective sleeve (51) and the circuit protection pipe (21), the positioning mechanism includes a ball (53), the inner wall of the movable cavity (52) of the protective sleeve (51) is movably connected with the ball (53), two sockets (54) are formed in the outer wall of the circuit protection pipe (21), the outer wall of the ball (53) is attached to the inner wall of one of the sockets (54), a spring (55) is arranged between the outer wall of the ball (53) and the inner wall of the movable cavity (52), a second threaded hole (56) is formed in the outer wall of the protective sleeve (51), the second threaded hole (56) is in communication with the movable cavity (52), and a locking bolt (57) is screwed on the inner wall of the second threaded hole (56).

2. A hand-held fast-response omni-directional wind speed sensor according to claim 1, wherein, The first protection mechanism includes a sensor protection pipe (17), two sets of ventilation grooves (18) are formed in the outer wall of the sensor protection pipe (17), one set of ventilation grooves (18) is a plurality of ventilation grooves (18), and the plurality of ventilation grooves (18) are arranged in an annular array, the sensor protection pipe (17) is sleeved on the outside of the sensor acquisition circuit board (11), and the positions of the two sets of ventilation grooves (18) correspond to the positions of the air temperature sensor (13) and the air speed temperature compensation sensor (14), respectively.

3. A hand-held fast-response omni-directional wind speed sensor according to claim 1, wherein, The handheld component includes a circuit protection pipe (21), a first connecting mechanism is arranged between the circuit protection pipe (21) and the sensor protection pipe (17), a connecting rod (31) is arranged on the front of the circuit protection pipe (21), a second connecting mechanism is arranged between the circuit protection pipe (21) and the connecting rod (31), a plug (33) is arranged on the front of the connecting rod (31), a third connecting mechanism is arranged between the plug (33) and the connecting rod (31), and anti-skid lines (35) are arranged on the outer wall of the plug (33).

4. A hand-held fast-response omni-directional wind speed sensor according to claim 3, wherein, The first connecting mechanism comprises a first threaded pipe (22), which is fixedly connected to the front face of the sensor protection pipe (17), and the outer wall of the first threaded pipe (22) is threadedly connected with the inner wall of the circuit protection pipe (21), and the outer wall of the circuit protection pipe (21) is provided with a reinforcing mechanism.

5. A hand-held fast-response omni-directional wind speed sensor according to claim 4, wherein, The reinforcing mechanism comprises a first threaded hole (23), which is formed in the outer wall of the circuit protection pipe (21), and the inner wall of the first threaded hole (23) is threadedly connected with a jackscrew bolt (24).

6. A hand-held fast-response omni-directional wind speed sensor according to claim 3, wherein, The second connecting mechanism comprises a second threaded pipe (32), which is fixedly connected to the back face of the connecting rod (31), and the outer wall of the second threaded pipe (32) is threadedly connected with the inner wall of the circuit protection pipe (21), and the third connecting mechanism comprises a third threaded pipe (34), which is fixedly connected to the back face of the plug (33), and the outer wall of the third threaded pipe (34) is threadedly connected with the inner wall of the connecting rod (31).

7. A hand-held fast-response omni-directional wind speed sensor according to claim 1, wherein, The second protection mechanism comprises a first connecting ring (41), a second connecting ring (42) and a plurality of arc-shaped rods (43), the plurality of arc-shaped rods (43) are arranged between the first connecting ring (41) and the second connecting ring (42) and are arranged in a ring array, the inner wall of the first connecting ring (41) is threadedly connected with a fourth threaded pipe (44), and the fourth threaded pipe (44) is fixedly connected to the back face of the sensor protection pipe (17).

8. A hand-held fast-response omni-directional wind speed sensor according to claim 1, wherein, The sliding mechanism comprises a limiting sliding block (62), the outer wall of the circuit protection pipe (21) is formed with a limiting groove (61), the outer wall of the limiting sliding block (62) is slidingly connected with the inner wall of the limiting groove (61), the outer wall of the protective sleeve (51) is formed with a third threaded hole (63), the inner wall of the third threaded hole (63) is threadedly connected with a fixing bolt (64), the outer wall of the limiting sliding block (62) is formed with a positioning hole (65), and the outer wall of the fixing bolt (64) is movably inserted into the inner wall of the positioning hole (65).

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