Simple pendulum type relative gravimeter

Abstract

The invention belongs to the technical field of gravity testing, particularly relates to a simple pendulum type relative gravimeter, and aims to solve the problems that in the prior art, when gravity is tested, a vacuum pump needs to be used for maintaining the vacuum state in a vacuum cavity, mechanical vibration energy generated in the operation process of the vacuum pump cannot be effectively recycled, and the cost is high. In order to solve the problems of low overall energy utilization rate and measurement interruption caused by insufficient power in remote areas in the prior art, the invention provides the following scheme: the gravity meter comprises a gravity meter main body, a vacuum cavity, a swing body, a swing rod, two spheres and a cross beam, mechanical vibration energy generated by the vacuum pump can be effectively recycled, the energy utilization rate is increased, wind energy and solar energy can be utilized for power generation, long-time stable operation of the vacuum pump in the field or remote areas is ensured, and measurement interruption caused by insufficient power can be reduced.

Description

Technical Field

[0001] The present application relates to the field of gravity testing technology, and in particular to a single-pendulum relative gravimeter. Background Art

[0002] Gravitational acceleration is a basic geophysical constant. Accurately measuring gravitational acceleration is of great significance in fields such as earth science and resource exploration. The methods of measuring gravitational acceleration are mainly divided into absolute measurement and relative measurement. The corresponding measuring equipment are also called absolute gravimeters and relative gravimeters respectively. Absolute gravimeters are designed to directly obtain the absolute value of gravitational acceleration g. Its classic measurement methods include the swing method (such as the simple pendulum method and the Carter pendulum method) and the free fall method. Relative gravimeters focus on monitoring the relative changes in gravitational acceleration g, and the absolute gravity value can only be calculated after a calibration procedure.

[0003] Publication (Announcement) No. CN103675936A provides a pendulum system consisting of a pendulum rod or two suspension wires connected to a crossbeam, with a pendulum body connected below. A bracket supports the pendulum system via wear-resistant contacts on the crossbeam. A vacuum chamber, temperature control system, electrostatic shield, and shock-absorbing base are used to maintain the stability of the pendulum's environment and reduce fluctuations in the equivalent pendulum length, thereby achieving highly stable, low-loss pendulum motion. A pair of capacitive displacement sensing plates are located directly above and below the pendulum body, respectively. Together with the pendulum body, they form a variable-area capacitive displacement sensor for measuring the pendulum's real-time displacement. First and second actuators for oscillation and locking are mounted on either side of the pendulum body, forming the oscillation and locking mechanisms for the pendulum motion. This gravimeter has a simple structure, is easy to use, and facilitates mobile observations, enabling pendulum-type relative gravity measurements with sub-micrometer resolution.

[0004] In the existing technology, when testing gravity, a vacuum pump is required to maintain the vacuum state inside the vacuum chamber. The mechanical vibration energy generated by the vacuum pump during operation cannot be effectively recycled, resulting in low overall energy utilization. In addition, in remote areas, measurement interruptions are easily caused by power shortages. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art in that, when testing gravity, a vacuum pump is required to maintain the vacuum state inside the vacuum chamber. The mechanical vibration energy generated by the vacuum pump during operation cannot be effectively recovered and utilized, resulting in low overall energy utilization. In addition, the measurement is easily interrupted due to power shortage in remote areas. A single pendulum relative gravimeter is proposed.

[0006] The present application provides a single pendulum relative gravimeter adopting the following technical solution: A single pendulum relative gravimeter, comprising: The gravimeter comprises a main body, a vacuum chamber, a pendulum, a pendulum rod, two spheres and a crossbeam. Two brackets are fixedly provided inside the vacuum chamber, two spheres are respectively provided on top of the two brackets, the crossbeam is located on top of the two spheres, the crossbeam is provided at the bottom of the crossbeam, and the pendulum is provided at the bottom of the pendulum rod; an armrest rotatably disposed on the outside of the gravimeter body; A first vibration and locking pendulum displacement actuator and a second vibration and locking pendulum displacement actuator are respectively provided on both sides of the interior of the vacuum chamber. A temperature control system is provided inside the gravimeter body. A fixing seat is provided on the bottom side of the interior of the gravimeter body. A vacuum pump is provided on the top of the fixing seat. The output end of the vacuum pump is connected to the vacuum chamber. The gravity test energy-saving mechanism is arranged inside the fixed seat and is used to convert the vibration generated during the operation of the vacuum pump when testing gravity into electrical energy; An adaptation mechanism, disposed inside the bottom side of the gravimeter body, for reducing measurement errors caused by ground tilt; The first protection mechanism is arranged on the inner top side of the gravimeter body; The wind energy mechanism is arranged on the first protection mechanism; The light energy mechanism is installed on the first protection mechanism and is used for long-term stable operation in the wild or remote areas to reduce measurement interruptions caused by power shortages; The second protection mechanism is arranged on the light energy mechanism; the gravity test energy-saving mechanism includes a serpentine coupling arranged inside the fixed seat, the bottom of the serpentine coupling is fixedly connected to a spring plate, the bottom end of the spring plate is fixedly connected to a knocking block, the inner bottom side of the fixed seat is fixedly installed with pressure ceramics, and the inner side of the fixed seat is fixedly installed with an energy storage element 1; the adaptation mechanism includes four push rod motors arranged at the four corners of the bottom side of the gravimeter body, and the output ends of the four push rod motors are fixedly connected to an adjustment plate; the first protection mechanism includes a recovery chamber opened on the inner top side of the gravimeter body, the inner side of the recovery chamber is provided with a groove and a positioning groove, the inner side of the groove is provided with a hydraulic cylinder 2, the The output end of the hydraulic cylinder 2 is fixedly connected to a mounting plate, one side of the mounting plate is fixedly connected to a protective box, and the top of the mounting plate is fixedly connected to a base; a rack 1 is provided on one side of the mounting plate, and the rack 1 is meshedly connected to a gear 1, and a rotating column is fixedly connected to the gear 1, and the rotating column is rotatably connected to the positioning groove, and the gear 1 is meshedly connected to the gear 2, and the gear 2 is fixedly connected to a rotating shaft, and the rotating shaft is rotatably connected to the positioning groove, and the outer surface of the rotating shaft is fixedly connected to a sprocket 1; an outlet 1 is provided on the top of one side of the gravimeter body, and a sealing plate is rotatably connected to the outlet 1, and a rotating rod is fixedly connected to one side of the sealing plate, and the rotating rod is rotatably connected to the gravimeter body. The outer surface of the sprocket is fixedly connected to the second sprocket, and the outer surface of the sprocket second and the sprocket one are meshed and connected to the same chain one; the wind energy mechanism includes an electric motor arranged on the bottom side of the interior of the base, the output shaft of the electric motor is fixedly connected to the working box, the working box is movably connected to the base, one side of the working box is rotatably connected to a rotating rod, one end of the rotating rod is fixedly connected to the fan blade, a gearbox is arranged inside the working box, the input end of the gearbox is fixedly connected to the rotating rod, a generator is arranged inside the working box, the output end of the gearbox is fixedly connected to the generator, a transformer is arranged on one side of the generator, and an energy storage element 2 is arranged on one side of the interior of the working box; the light energy mechanism includes an The hydraulic cylinder four is on one side of the interior of the protection box, and the output end of the hydraulic cylinder four is fixedly connected to the mobile box, and the internal bottom side of the mobile box is fixedly installed with a hydraulic cylinder one, and the output end of the hydraulic cylinder one is fixedly connected to a circular frame, and the interior of the circular frame is rotatably connected to the solar panel, and one side of the circular frame is fixedly connected to a protection block, and a motor is provided inside the protection block, and the output shaft of the motor is fixedly connected to the solar panel; the protection mechanism two includes a rack two provided on one side of the mobile box, and the rack two is meshed with a gear three, and a fixed groove is provided at the bottom of the protection box, and a rotating column one is fixedly connected to the gear three, and the rotating column one is rotatably connected to the fixed groove, and the outer surface of the rotating column one is fixedly connected to a sprocket three;A second outlet is formed on one side of the protective box. A protective plate is rotatably connected to the interior of the second outlet. One end of the protective plate is fixedly connected to a second rotating post. The second rotating post is rotatably connected to the protective box. A fourth sprocket is fixedly connected to the outer surface of the second rotating post. The fourth sprocket is meshed with the outer surface of the third sprocket and is connected to the same chain.

[0007] In summary, this application includes at least one of the following beneficial technical effects: 1. In this solution, when the vacuum pump is running, its mechanical vibration is transmitted to the spring plate through the serpentine coupling. The spring plate acts as an elastic energy storage element, buffering high-frequency vibration impacts while also transmitting vibration energy in a directionally directed manner to the striking block. The striking block undergoes periodic displacement under vibration excitation, continuously striking the surface of the pressure ceramic. The pressure ceramic is made of PZT-5H piezoelectric material, which undergoes polarization deformation under dynamic stress. This converts mechanical energy into electrical energy through the positive piezoelectric effect. The generated charge is processed by the rectifier circuit and stored in the capacitor energy storage element 1, forming a reusable energy source. 2. This solution uses wind to rotate the fan blades, which capture wind energy and convert it into mechanical energy. The rotating rod transmits the rotational motion of the fan blades to the inside of the working box. The gearbox adjusts the speed to meet the needs of the generator, ensuring that the generator runs at the optimal speed. The generator converts mechanical energy into electrical energy. The transformer adjusts the voltage of the electricity generated by the generator to match the needs of the energy storage element or the power grid. Finally, the adjusted electrical energy is stored in the energy storage element 2 for subsequent use. 3. This solution starts hydraulic cylinder 2, and the output end of hydraulic cylinder 2 drives the mounting plate, protective box, base, working box, wind energy mechanism and electric energy mechanism to be recovered, and at the same time drives rack 1 to move inward, which can drive gear 1 to rotate, gear 1 drives gear 2 to rotate, gear 2 drives the rotating shaft to rotate, the rotating shaft drives sprocket 1 to rotate, sprocket 1 drives sprocket 2 to rotate through chain 1, sprocket 2 drives the rotating rod to rotate, and the rotating rod drives the sealing plate to rotate and close, so as to protect the wind energy mechanism and electric energy mechanism.

[0008] The present invention can effectively recycle the mechanical vibration energy generated by the vacuum pump, improve energy utilization, and use wind and solar energy to generate electricity, ensuring its long-term stable operation in the wild or remote areas, and reducing measurement interruptions caused by power shortages. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a structural schematic diagram of a single pendulum relative gravimeter proposed by the present invention; Figure 2 This is a schematic diagram of the internal structure of a gravimeter body of a single pendulum relative gravimeter proposed in the present invention; Figure 3This is a schematic diagram of the cross-sectional structure of a gravimeter main body of a single pendulum relative gravimeter proposed in the present invention; Figure 4 This is a schematic diagram of the adaptive mechanism structure of a single pendulum relative gravimeter proposed in the present invention; Figure 5 This is a structural diagram of a gravity test energy-saving mechanism of a single pendulum relative gravimeter proposed in the present invention; Figure 6 A structural diagram of a protection mechanism for a single pendulum relative gravimeter proposed in the present invention Figure 7 The present invention proposes a single pendulum relative gravimeter Figure 6 Side view structural diagram; Figure 8 This is a schematic cross-sectional structure diagram of a protective box for a single pendulum relative gravimeter proposed in the present invention; Figure 9 The present invention proposes a single pendulum relative gravimeter Figure 8 Schematic diagram of the structure viewed from above; Figure 10 The present invention proposes a single pendulum relative gravimeter Figure 6 A schematic diagram of the enlarged structure of part A; Figure 11 The present invention proposes a single pendulum relative gravimeter Figure 6 The enlarged structural diagram of part B in the middle; Figure 12 The present invention proposes a single pendulum relative gravimeter Figure 7 The enlarged structural diagram of part C in the middle; Figure 13 The present invention proposes a single pendulum relative gravimeter Figure 8 The enlarged structural diagram of part D in the middle; Figure 14 The present invention proposes a single pendulum relative gravimeter Figure 8 The enlarged structural diagram of part E in the middle; Figure 15 The present invention proposes a single pendulum relative gravimeter Figure 9 The enlarged structural diagram of part F in the middle.

[0010] Figure numerals: 1. Gravity meter body; 2. Handrail; 3. Vacuum chamber; 4. Sphere; 5. First vibration and pendulum displacement actuator; 6. Second vibration and pendulum displacement actuator; 7. Pendulum body; 8. Pendulum rod; 9. Beam; 10. Temperature control system; 11. Push rod motor; 12. Adjustment plate; 13. Fixed seat; 14. Vacuum pump; 15. Serpentine coupling; 16. Spring plate; 17. Knocking block; 18. Pressure ceramic; 19. Energy storage element 1; 20. Recovery chamber; 21. Groove; 22. Hydraulic cylinder 2; 23. Mounting plate; 24. Protective box; 25. Working box; 26. Rack 1; 27. Gear 1; 28. Rotating column; 29. ​​Gear 2; 30. Positioning slot; 31. Rotating shaft; 32. Sprocket one; 33. Outlet one; 34. Sealing plate; 35. Rotating rod; 36. Sprocket two; 37. Chain one; 38. Transformer; 39. Generator; 40. Gearbox; 41. Rotating rod; 42. Fan blade; 43. Energy storage element two; 44. Base; 45. Motor; 46. Hydraulic cylinder four; 47. Moving box; 48. Frame; 49. Protective block; 50. Solar panel; 51. Rack two; 52. Fixed slot; 53. Gear three; 54. Rotating column one; 55. Sprocket three; 56. Protective plate; 57. Rotating column two; 58. Sprocket four; 59. Chain two; 60. Recovery slot. DETAILED DESCRIPTION

[0011] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example 1

[0012] Reference Figures 1-15 A single pendulum relative gravimeter includes: a gravimeter body 1, a vacuum chamber 3, a pendulum body 7, a pendulum rod 8, two spheres 4, and a crossbeam 9. Two brackets are fixedly provided inside the vacuum chamber 3. The two spheres 4 are respectively provided on the top of the two brackets. The crossbeam 9 is located on the top of the two spheres 4. The pendulum rod 8 is provided at the bottom of the crossbeam 9. The pendulum body 7 is provided at the bottom of the pendulum rod 8. an armrest 2 rotatably disposed on the outside of the gravimeter body 1; The first vibration and locking pendulum displacement actuator 5 and the second vibration and locking pendulum displacement actuator 6 are respectively provided on both sides of the interior of the vacuum chamber 3. A temperature control system 10 is provided inside the gravimeter body 1. A fixing seat 13 is provided on the bottom side of the interior of the gravimeter body 1. A vacuum pump 14 is provided on the top of the fixing seat 13. The output end of the vacuum pump 14 is connected to the vacuum chamber 3. A sensor is provided on one side of the interior of the vacuum chamber 3. The air in the vacuum chamber 3 is evacuated by the vacuum pump 14 to form a near vacuum environment, which greatly reduces the influence of air resistance on the swing of the pendulum 7. The temperature control system 10 precisely controls the temperature in the vacuum chamber 3 to ensure a constant measurement environment. The pendulum 7 is suspended on the beam 9 through the pendulum rod 8 to form a simple pendulum system. During measurement, the first The oscillation and pendulum-locking displacement actuator 5 precisely drives the sphere 4 to oscillate the pendulum 7. The pendulum 7 then swings freely under the action of gravity. Its swing period is closely related to the acceleration of gravity. The swing period is measured by a sensor, and combined with a temperature compensation algorithm, the value of the acceleration of gravity can be accurately calculated. After the measurement is completed, the second oscillation and pendulum-locking displacement actuator 6 precisely locks the pendulum 7 to ensure that the instrument is stable for the next measurement. The armrest 2 is convenient for portability and operation. This gravimeter achieves high-precision measurement of small changes in gravity by leveraging the physical relationship between the simple pendulum period and the acceleration of gravity. It is widely used in geological exploration, geophysical research and other fields. It is the prior art of the patent document with publication number CN103675936A. The gravity test energy-saving mechanism is arranged inside the fixing base 13 and can convert the vibration generated during the operation of the vacuum pump 14 into electrical energy; An adaptation mechanism is provided inside the bottom side of the gravimeter body 1 and is used to adapt to uneven ground and reduce measurement errors caused by ground tilt; The first protection mechanism is provided on the top side of the interior of the gravimeter body 1; A wind energy mechanism, provided on the first protection mechanism, for converting wind energy into electrical energy; The light energy mechanism is installed on the first protection mechanism and is used to convert light energy into electrical energy. It is used for long-term stable operation in the wild or remote areas, reducing measurement interruptions caused by power shortages. The second protection mechanism is arranged on the light energy mechanism.

[0013] Reference Figure 3 and Figure 5The gravity test energy-saving mechanism includes a serpentine coupling 15 arranged inside the fixed seat 13, the top of the serpentine coupling 15 is connected to the vacuum pump 14, the bottom of the serpentine coupling 15 is fixedly connected to a spring plate 16, the bottom end of the spring plate 16 is fixedly connected to a knocking block 17, the inner bottom side of the fixed seat 13 is fixedly installed with a pressure ceramic 18, and the inner side of the fixed seat 13 is fixedly installed with an energy storage element 19. When the vacuum pump 14 is running, its mechanical vibration is transmitted to the spring plate 16 through the serpentine coupling 15. The spring plate 16 serves as an elastic energy storage element. On the one hand, it buffers the high-frequency vibration impact, and on the other hand, it transmits the vibration energy to the knocking block 17 in a direction. The knocking block 17 produces periodic displacement under vibration excitation and continuously impacts the surface of the pressure ceramic 18. The pressure ceramic 18 adopts PZT-5H piezoelectric material, which undergoes polarization deformation under dynamic stress and converts mechanical energy into electrical energy through the positive piezoelectric effect. The generated charge is processed by the rectifier circuit and stored in the capacitor energy storage element 19 to form a callable energy source.

[0014] Reference Figure 4 The adaptation mechanism includes four push rod motors 11 arranged at the four corners of the bottom side of the gravimeter body 1. The output ends of the four push rod motors 11 are fixedly connected to the adjustment plate 12. By starting the four push rod motors 11 separately, it can adapt to inclined or uneven ground.

[0015] Reference Figure 6 、 Figure 7 、 Figure 10 and Figure 11 The first protective mechanism includes a recovery chamber 20 provided on the top side of the interior of the gravimeter body 1, a groove 21 and a positioning groove 30 are provided on one side of the interior of the recovery chamber 20, a hydraulic cylinder 22 is provided inside the groove 21, the output end of the hydraulic cylinder 22 is fixedly connected to a mounting plate 23, a side of the mounting plate 23 is fixedly connected to a protective box 24, and the top of the mounting plate 23 is fixedly connected to a base 44; a rack 26 is provided on one side of the mounting plate 23, the rack 26 is meshed with a gear 27, a rotating column 28 is fixedly connected to the gear 27, and the rotating column 28 is connected to the positioning groove 30 Rotationally connected, gear 1 27 is meshedly connected to gear 2 29, gear 2 29 is fixedly connected to a rotating shaft 31, rotating shaft 31 is rotationally connected to the positioning groove 30, and the outer surface of the rotating shaft 31 is fixedly connected to a sprocket 1 32; an outlet 1 33 is opened on the top of one side of the gravimeter body 1, a sealing plate 34 is rotatably connected to the outlet 1 33, a rotating rod 35 is fixedly connected to one side of the sealing plate 34, the rotating rod 35 is rotationally connected to the gravimeter body 1, the outer surface of the rotating rod 35 is fixedly connected to a sprocket 2 36, and the sprocket 2 36 is meshed with the outer surface of the sprocket 1 32 via the same chain 1 37.

[0016] Reference Figure 7 and Figure 12The wind energy mechanism includes an electric motor 45 arranged on the bottom side of the base 44. The output shaft of the electric motor 45 is fixedly connected to the working box 25. The working box 25 is movably connected to the base 44. One side of the working box 25 is rotatably connected to the rotating rod 41. One end of the rotating rod 41 is fixedly connected to the fan blade 42. A gearbox 40 is arranged inside the working box 25. The input end of the gearbox 40 is fixedly connected to the rotating rod 41. A generator 39 is arranged inside the working box 25. The output end of the gearbox 40 is fixedly connected to the generator 39. A transformer 38 is arranged on one side of the generator 39. The working box An energy storage element 2 43 is provided on one side of the interior of 25. When the wind blows the fan blades 42 to rotate, the fan blades 42 capture the wind energy and convert it into mechanical energy. The rotating rod 41 transmits the rotational motion of the fan blades 42 to the inside of the working box 25. The gearbox 40 adjusts the speed to meet the needs of the generator 39, ensuring that the generator 39 runs at the optimal speed. The generator 39 converts the mechanical energy into electrical energy. The transformer 38 adjusts the voltage of the electrical energy generated by the generator 39 to match the needs of the energy storage element or the power grid. Finally, the adjusted electrical energy is stored in the energy storage element 2 43 for subsequent use.

[0017] Reference Figure 8 The light energy mechanism includes a hydraulic cylinder four 46 arranged on one side of the interior of the protective box 24, the output end of the hydraulic cylinder four 46 is fixedly connected to the mobile box 47, the top of the mobile box 47 is provided with a recovery tank 60, and the bottom side of the mobile box 47 is fixedly installed with a hydraulic cylinder one, the output end of the hydraulic cylinder one is fixedly connected to a circular frame 48, the interior of the circular frame 48 is rotatably connected to the solar panel 50, and one side of the circular frame 48 is fixedly connected to a protective block 49, and the interior of the protective block 49 is provided with a motor, and the output shaft of the motor is fixedly connected to the solar panel 50. By starting the hydraulic cylinder one, the height of the solar panel 50 can be adjusted, and by starting the motor, the angle of the solar panel 50 can be adjusted.

[0018] Reference Figure 8 、 Figure 9 、 Figure 13-15, the second protection mechanism includes a rack 2 51 arranged on one side of the mobile box 47, the rack 2 51 is meshed with a gear 3 53, a fixed groove 52 is provided at the bottom of the protection box 24, the gear 3 53 is located inside the fixed groove 52, a rotating column 1 54 is fixedly connected to the gear 3 53, the rotating column 1 54 is rotatably connected to the fixed groove 52, and a sprocket 3 55 is fixedly connected to the outer surface of the rotating column 1 54; an outlet 2 is provided on one side of the protection box 24, a protective plate 56 is rotatably connected to the outlet 2, one end of the protective plate 56 is fixedly connected to a rotating column 2 57, the rotating column 2 57 is rotatably connected to the protection box 24, the outer surface of the rotating column 2 57 is fixedly connected to a sprocket 4 58, and the sprocket 4 58 is meshed with the outer surface of the sprocket 3 55. Chain 2 59, by starting hydraulic cylinder 46, hydraulic cylinder 46 pushes the mobile box 47 to one side to the outside of the protective box 24, and at the same time drives rack 2 51 to move, rack 2 51 drives gear 3 53 to rotate, gear 3 53 drives rotating column 1 54 to rotate, rotating column 1 54 drives sprocket 3 55 to rotate, sprocket 3 55 drives sprocket 4 58 to rotate through chain 2 59, sprocket 4 58 drives rotating column 2 57 to rotate, rotating column 2 57 drives protective plate 56 to rotate and open, so that the mobile box 47 and the solar panel 50 on the top of the mobile box 47 can be moved to the outside of the protective box 24, the angle of the solar panel 50 can be adjusted by the motor, and the height of the solar panel 50 can be adjusted by starting hydraulic cylinder 1.

[0019] The implementation principle of a single pendulum relative gravimeter in the embodiment of the present application is as follows: during measurement, the first oscillation and locking pendulum displacement actuator 5 accurately drives the sphere 4 to oscillate the pendulum body 7, and the pendulum body 7 swings freely under the action of gravity. Its swing period is closely related to the acceleration of gravity. The swing period is measured by a sensor, and combined with a temperature compensation algorithm, the acceleration of gravity value can be accurately calculated. After the measurement is completed, the second oscillation and locking pendulum displacement actuator 6 accurately locks the pendulum body 7 to ensure that the instrument is stable for the next measurement. The armrest 2 is convenient for carrying and operation. The gravimeter achieves high-precision measurement of small changes in gravity through the physical relationship between the single pendulum period and the acceleration of gravity, and is widely used in geological exploration, geophysical research and other fields. When the vacuum pump 14 is running, its mechanical vibration is transmitted to the spring plate 16 through the serpentine coupling 15. The spring plate 16 acts as an elastic energy storage element. On the one hand, it buffers the high-frequency vibration impact. On the other hand, it transmits the vibration energy to the striking block 17 in a direction. The striking block 17 produces periodic displacement under the vibration excitation, continuously striking the surface of the pressure ceramic 18. The pressure ceramic 18 is made of PZT-5H piezoelectric material. It undergoes polarization deformation under the action of dynamic stress and converts mechanical energy into electrical energy through the positive piezoelectric effect. The generated charge is processed by the rectifier circuit and stored in the capacitor energy storage element 19 to form a callable energy source. When the external wind is strong and the sun is bright, by starting the hydraulic cylinder 22, the output end of the hydraulic cylinder 22 drives the mounting plate 23, the protective box 24, the base 44, the working box 25, the wind energy mechanism and the electric energy mechanism to move outward, and at the same time drives the rack 1 26 to move outward, which can drive the gear 1 27 to rotate, the gear 1 27 drives the gear 2 29 to rotate, the gear 2 29 drives the rotating shaft 31 to rotate, the rotating shaft 31 drives the sprocket 1 32 to rotate, the sprocket 1 32 drives the sprocket 2 36 to rotate through the chain 1 37, the sprocket 2 36 drives the rotating rod 35 to rotate, and the rotating rod 35 drives the sealing plate 34 to rotate and open, so that the wind energy mechanism and the electric energy mechanism are located outside; When the wind blows the fan blades 42 to rotate, the fan blades 42 capture the wind energy and convert it into mechanical energy. The rotating rod 41 transmits the rotational motion of the fan blades 42 to the inside of the working box 25. The gearbox 40 adjusts the speed to meet the needs of the generator 39, ensuring that the generator 39 runs at the optimal speed. The generator 39 converts the mechanical energy into electrical energy. The transformer 38 adjusts the voltage of the electrical energy generated by the generator 39 to match the needs of the energy storage element or the power grid. Finally, the adjusted electrical energy is stored in the energy storage element 2 43 for subsequent use. By starting hydraulic cylinder four 46, hydraulic cylinder four 46 pushes the mobile box 47 to one side to the outside of the protective box 24, and at the same time drives rack two 51 to move, rack two 51 drives gear three 53 to rotate, gear three 53 drives rotating column one 54 to rotate, rotating column one 54 drives sprocket three 55 to rotate, sprocket three 55 drives sprocket four 58 to rotate through chain two 59, sprocket four 58 drives rotating column two 57 to rotate, and rotating column two 57 drives protective plate 56 to rotate and open, so that the mobile box 47 and the solar panel 50 on the top of the mobile box 47 can be moved to the outside of the protective box 24, the angle of the solar panel 50 can be adjusted by the motor, and the height of the solar panel 50 can be adjusted by starting hydraulic cylinder one, so that it can operate stably for a long time in the wild or remote areas, reduce measurement interruptions caused by insufficient power, reduce dependence on batteries or external power supplies, and thus reduce costs. Example 2

[0020] The difference between this embodiment and the first embodiment is that a bracket is provided on one side of the second outlet, and a brush is provided at the bottom of the bracket, so that the surface of the solar panel 50 can be cleaned by the brush during the recycling process of the solar panel 50, thereby improving the service life of the solar panel 50.

[0021] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A single pendulum relative gravimeter, characterized in that: include: A gravimeter body (1), a vacuum chamber (3), a pendulum (7), a pendulum rod (8), two spheres (4) and a crossbeam (9); two brackets are fixedly provided inside the vacuum chamber (3); the two spheres (4) are respectively provided on the tops of the two brackets; the crossbeam (9) is located on the tops of the two spheres (4); the bottom of the crossbeam (9) is provided with a pendulum rod (8); and the bottom of the pendulum rod (8) is provided with a pendulum body (7); An armrest (2) is rotatably arranged on the outside of the gravimeter body (1); A first vibration and lock pendulum displacement actuator (5) and a second vibration and lock pendulum displacement actuator (6) are respectively provided on both sides of the interior of the vacuum chamber (3); a temperature control system (10) is provided inside the gravimeter body (1); a fixing seat (13) is provided on the bottom side of the interior of the gravimeter body (1); a vacuum pump (14) is provided on the top of the fixing seat (13); and an output end of the vacuum pump (14) is connected to the vacuum chamber (3); A gravity test energy-saving mechanism is provided inside the fixed seat (13) and is used to convert vibration generated during the operation of the vacuum pump (14) when testing gravity into electrical energy; An adaptation mechanism, arranged inside the bottom side of the gravimeter body (1), for reducing measurement errors caused by ground tilt; A first protective mechanism is provided on the inner top side of the gravimeter body (1); The wind energy mechanism is arranged on the first protection mechanism; The light energy mechanism is installed on the first protection mechanism and is used for long-term stable operation in the wild or remote areas to reduce measurement interruptions caused by power shortages; The second protection mechanism is arranged on the light energy mechanism.

2. A single pendulum relative gravimeter according to claim 1, characterized in that: The gravity test energy-saving mechanism includes a serpentine coupling (15) arranged inside a fixed seat (13), the bottom of the serpentine coupling (15) is fixedly connected to a spring plate (16), the bottom end of the spring plate (16) is fixedly connected to a knocking block (17), the inner bottom side of the fixed seat (13) is fixedly installed with a pressure ceramic (18), and the inner side of the fixed seat (13) is fixedly installed with an energy storage element (19).

3. The single pendulum relative gravimeter according to claim 1, characterized in that: The adaptation mechanism comprises four push rod motors (11) arranged at the four inner corners of the bottom side of the gravimeter body (1), and the output ends of the four push rod motors (11) are all fixedly connected to an adjustment plate (12).

4. The single pendulum relative gravimeter according to claim 1, characterized in that: The first protection mechanism comprises a recovery chamber (20) provided on the top side of the interior of the gravimeter body (1), a groove (21) and a positioning groove (30) being provided on one side of the interior of the recovery chamber (20), a second hydraulic cylinder (22) being provided inside the groove (21), an output end of the second hydraulic cylinder (22) being fixedly connected to a mounting plate (23), a side of the mounting plate (23) being fixedly connected to a protection box (24), and a top of the mounting plate (23) being fixedly connected to a base (44).

5. The single pendulum relative gravimeter according to claim 4, characterized in that: A rack 1 (26) is provided on one side of the mounting plate (23), the rack 1 (26) is meshedly connected to a gear 1 (27), a rotating column (28) is fixedly connected to the gear 1 (27), the rotating column (28) is rotatably connected to the positioning groove (30), the gear 1 (27) is meshedly connected to a gear 2 (29), a rotating shaft (31) is fixedly connected to the gear 2 (29), the rotating shaft (31) is rotatably connected to the positioning groove (30), and a sprocket 1 (32) is fixedly connected to the outer surface of the rotating shaft (31).

6. The single pendulum relative gravimeter according to claim 5, characterized in that: An outlet 1 (33) is provided at the top of one side of the gravimeter body (1), a sealing plate (34) is rotatably connected to the inside of the outlet 1 (33), a rotating rod (35) is fixedly connected to one side of the sealing plate (34), the rotating rod (35) is rotatably connected to the gravimeter body (1), a sprocket 2 (36) is fixedly connected to the outer surface of the rotating rod (35), and the sprocket 2 (36) is meshed with the outer surface of the sprocket 1 (32) and connected to the same chain 1 (37).

7. The single pendulum relative gravimeter according to claim 4, characterized in that: The wind energy mechanism includes an electric motor (45) arranged on the bottom side of the base (44), an output shaft of the electric motor (45) is fixedly connected to a working box (25), the working box (25) is movably connected to the base (44), one side of the working box (25) is rotatably connected to a rotating rod (41), one end of the rotating rod (41) is fixedly connected to a fan blade (42), a gearbox (40) is arranged inside the working box (25), an input end of the gearbox (40) is fixedly connected to the rotating rod (41), a generator (39) is arranged inside the working box (25), an output end of the gearbox (40) is fixedly connected to the generator (39), a transformer (38) is arranged on one side of the generator (39), and an energy storage element 2 (43) is arranged on one side of the working box (25).

8. The single pendulum relative gravimeter according to claim 4, characterized in that: The light energy mechanism includes a hydraulic cylinder four (46) arranged on one side of the interior of the protection box (24), the output end of the hydraulic cylinder four (46) is fixedly connected to the mobile box (47), the inner bottom side of the mobile box (47) is fixedly installed with a hydraulic cylinder one, the output end of the hydraulic cylinder one is fixedly connected to a circular frame (48), the interior of the circular frame (48) is rotatably connected to a solar panel (50), one side of the circular frame (48) is fixedly connected to a protection block (49), a motor is arranged inside the protection block (49), and the output shaft of the motor is fixedly connected to the solar panel (50).

9. The single pendulum relative gravimeter according to claim 8, characterized in that: The second protection mechanism includes a second rack (51) provided on one side of the moving box (47), the second rack (51) is meshedly connected with a third gear (53), a fixing groove (52) is provided at the bottom of the protection box (24), a rotating column (54) is fixedly connected to the third gear (53), the rotating column (54) is rotatably connected to the fixing groove (52), and a sprocket (55) is fixedly connected to the outer surface of the rotating column (54).

10. The single pendulum relative gravimeter according to claim 9, characterized in that: One side of the protection box (24) is provided with an outlet 2, a protection plate (56) is rotatably connected to the inside of the outlet 2, one end of the protection plate (56) is fixedly connected to a rotating column 2 (57), the rotating column 2 (57) is rotatably connected to the protection box (24), the outer surface of the rotating column 2 (57) is fixedly connected to a sprocket 4 (58), and the sprocket 4 (58) is meshed with the outer surface of the sprocket 3 (55) and is connected to the same chain 2 (59).

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