High-speed electrostatic charging test device and test method

Abstract

The present invention relates to the field of electrostatic technology, and in particular to a high-speed electrostatic electrification test experimental device and a test method. The high-speed electrostatic electrification test experimental device includes an air particle ejection device, a bracket, a test material charge detection device, a particle charge detection device, and a data processing device; the test material is arranged on the bracket, and the test material and the nozzle of the air particle ejection device are arranged opposite to each other; the test material charge detection device is used to detect the charge of the test material, and the particle charge detection device is used to measure the charge of the particles after the collision, and the test side material charge detection device and the particle charge detection device are connected to the data processing device. The high-speed electrostatic electrification test experimental device and the test method realize the ground simulation of the collision and friction process between the surface material of the high-speed flying body and the air particles, and can realize the qualitative and quantitative measurement of the electrostatic electrification value in the process.

Description

Technical Field

[0001] The invention relates to the field of electrostatic technology, and in particular to a high-speed electrostatic electrification test experimental device and a test method. Background Art

[0002] Static electricity is an inherent physical phenomenon in the high-speed motion of a flying object. When a flying object moves at high speed in the air, its surface will collide with dust, ice crystals, raindrops and other material particles. The continuous collision between the flying object and the particles will cause the charge to be separated from the particles and transferred to the surface of the flying object. The charge will excite the electrostatic field. When the static charge on the flying object accumulates to a certain extent, it will be released through various forms of electrostatic discharge at the part with large surface curvature. This discharge will generate avalanche current in the air, generate current pulses on the body, and cause strong electromagnetic radiation. In order to study the influence of electrostatic discharge generated by high-speed flying objects on airborne electronic equipment, it is necessary to first study the characteristics of static electricity charge level, polarity, etc. However, there is a problem in the prior art that it is difficult to monitor the high-speed motion of the flying object and the flight environment in real time. Summary of the invention

[0003] The first purpose of the present invention is to provide a high-speed electrostatic electrification test experimental device, which can solve the problem of high-speed movement of flying objects and difficulty in real-time monitoring of the flying environment in the prior art;

[0004] The second object of the present invention is to provide a high-speed electrostatic electrification test method, which uses the high-speed electrostatic electrification test experimental device as described above to perform a high-speed electrostatic electrification test.

[0005] The present invention provides a high-speed electrostatic electrification test experimental device, which includes an air particle ejection device, a bracket, a measured material charge detection device, a particle charge detection device and a data processing device;

[0006] The material to be tested is arranged on the bracket, and the material to be tested is arranged opposite to the nozzle of the air particle ejection device;

[0007] The measured material charge detection device is used to detect the charge of the measured material, and the particle charge detection device is used to measure the charge of the particles after impact. The measured side material charge detection device and the particle charge detection device are connected to the data processing device.

[0008] Preferably, the air particle ejection device comprises a high-pressure gas supply device and an ejection device;

[0009] The ejection device comprises an air inlet, a feed inlet and a nozzle, and the air inlet, the feed inlet and the nozzle are interconnected;

[0010] The gas inlet is communicated with a high-pressure gas supply device.

[0011] Preferably, an air pressure regulating valve is provided at the air inlet.

[0012] Preferably, the high-pressure gas supply device comprises a high-pressure gas pump and a gas storage tank;

[0013] The outlet end of the high-pressure air pump is communicated with the inlet end of the air storage tank, and the outlet end of the air storage tank is communicated with the air inlet.

[0014] Preferably, the material to be measured is arranged on a bracket with an adjustable angle.

[0015] Preferably, the device for detecting the electrical quantity of the material being tested is a non-contact device.

[0016] Preferably, the particle charge detection device is a Faraday cup, and the Faraday cup is located at the lower end of the material to be tested.

[0017] A high-speed electrostatic charging test method, which uses the high-speed electrostatic charging test experimental device as described above to perform a high-speed electrostatic charging test, comprises the following steps:

[0018] An air particle ejection device is used to eject air particles, and the air particles are made to collide with the material to be tested;

[0019] The electric charge detection device of the material under test and the electric charge detection device of the particle matter are used to detect the electric charge of the material under test and the particle matter after collision respectively;

[0020] The charge of the material being tested and the charge of the particles after collision are mutually verified.

[0021] Preferably, the angle of the material to be tested is adjusted to obtain the charge amount of the material to be tested when it collides with air particles at different angles.

[0022] Preferably, the speed at which the air particle ejecting device ejects the air particles is adjusted to obtain the charge of the material being tested at different speeds of the air particles.

[0023] Beneficial effects:

[0024] The high-speed electrostatic charging test experimental device and test method provided in this embodiment can realize the ground simulation of the collision and friction process between the surface material of a high-speed flying body and air particles, and can achieve qualitative and quantitative measurement of the electrostatic charging value in the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the structure of a high-speed electrostatic charging test experimental device provided for a specific embodiment of the present invention;

[0027] Figure 2 A high-speed electrostatic charging test flow chart provided for a specific embodiment of the present invention.

[0028] Description of reference numerals:

[0029] 1: air particle ejection device, 2: bracket, 3: measured material power detection device, 4: particle power detection device, 5: data processing device;

[0030] 11: High-pressure air pump, 12: Air storage tank, 13: Spraying device. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like 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 invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] like Figure 1 , Figure 2 As shown, this embodiment provides a high-speed electrostatic electrification test experimental device, which includes an air particle ejection device 1, a bracket 2, a measured material charge detection device 3, a particle charge detection device 4 and a data processing device 5;

[0035] The material to be tested is arranged on the support 2 , and the material to be tested is arranged opposite to the nozzle of the air particle ejecting device 1 .

[0036] The measured material charge detection device 3 is used to detect the charge of the measured material, and the particle charge detection device 4 is used to measure the charge of the particles after impact. The measured side material charge detection device and the particle charge detection device 4 are connected to the data processing device 5.

[0037] Specifically, the air particle ejection device 1 includes a high-pressure gas supply device and an ejection device 13 .

[0038] The ejection device 13 comprises an air inlet, a feed inlet and a nozzle, the air inlet, the feed inlet and the nozzle are connected to each other, and the air inlet is connected to the high-pressure gas supply device.

[0039] High-pressure gas enters the ejection device 13 through the gas inlet, and air particles enter the ejection device 13 through the feed port. The air particles are ejected from the nozzle driven by the high-pressure gas and hit the material to be tested.

[0040] The air inlet is provided with an air pressure regulating valve, which can adjust the pressure of the high-pressure gas entering the ejection device 13, thereby adjusting the ejection speed of the air particles, and can realize the electrostatic charging measurement of the measured material at different speeds.

[0041] The high-pressure gas supply device includes a high-pressure gas pump 11 and a gas storage tank 12. The outlet end of the high-pressure gas pump 11 is communicated with the inlet end of the gas storage tank 12, and the outlet end of the gas storage tank 12 is communicated with the gas inlet.

[0042] The angle of the material to be measured is adjustable on the bracket 2. For example, the bracket 2 also includes a frame, and a mounting seat arranged on the frame, and the mounting seat is connected to the frame through a rotating shaft. The material to be measured is placed on the mounting seat, and the angle of the material to be measured can be adjusted by rotating the mounting seat relative to the frame. The adjustment of the angle of the material to be measured includes the adjustment of the pitch angle and the left and right angles, but no matter how the angle of the material to be measured is adjusted, the material to be measured and the nozzle of the ejection device 13 need to be arranged relative to each other, that is, to ensure that the air particles ejected by the ejection device 13 can hit the material to be measured. By adjusting the angle of the material to be measured, the electrostatic charging measurement of the collision of the material to be measured with the air particles at different angles is achieved.

[0043] The measured material charge detection device 3 is a non-contact device, such as a non-contact measuring instrument. During measurement, there is a distance between the non-contact instrument and the measured material. The measured material will not affect the measuring instrument when rotating, which has the advantage of convenient measurement.

[0044] The particle charge detection device 4 is a Faraday cup, which is located at the lower end of the material to be tested. The open end of the Faraday cup is arranged opposite to the lower end of the material to be tested, that is, the air material that hits the material to be tested will fall into the Faraday cup.

[0045] In this embodiment, a high-speed electrostatic charging test method is also provided, which uses the high-speed electrostatic charging test experimental device as described above to perform a high-speed electrostatic charging test, including the following steps:

[0046] The air particles are ejected by the air particle ejection device 1 and are made to collide with the material to be tested. As can be seen from the relative speed, this process is equivalent to the collision and friction between the material to be tested and the air particles during high-speed movement.

[0047] The measured material charge detection device 3 and the particle charge detection device 4 are used to detect the charge of the measured material and the particle charge after collision respectively.

[0048] The charge of the material being tested and the charge of the particles after collision are mutually verified.

[0049] The measured values ​​of the measured material charge detection device 3 and the particle charge detection device 4 will be recorded in the data processing device 5, and the output processing device is a computer.

[0050] The charge of the material being tested and the charge of the particles after collision are measured simultaneously, and the two measured values ​​can be verified with each other, ensuring the accuracy of the test method.

[0051] This method also includes adjusting the angle of the material being tested to obtain the charge amount of the material being tested when it collides with air particles at different angles.

[0052] In this method, the speed at which the air particle ejecting device 1 ejects the air particles is adjusted to obtain the charge of the material to be tested at different air particle speeds.

[0053] The high-speed electrostatic charging test experimental device and test method provided in this embodiment can realize the ground simulation of the collision and friction process between the surface material of a high-speed flying body and air particles, and can achieve qualitative and quantitative measurement of the electrostatic charging value in the process.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-speed electrostatic charging test experimental device, characterized in that: It includes an air particle ejection device, a bracket, a measured material quantity detection device, a particle quantity detection device and a data processing device; The material to be tested is arranged on the bracket, and the material to be tested is arranged opposite to the nozzle of the air particle ejection device, and the air particle ejection device is used to eject the air particles and make the air particles hit the material to be tested; High-pressure gas enters the ejection device through the air inlet, and air particles enter the ejection device through the feed port. The air particles are ejected from the nozzle driven by the high-pressure gas and hit the material to be tested. The bracket also includes a frame body and a mounting seat arranged on the frame body, the mounting seat and the frame body are connected through a rotating shaft, the material to be measured is placed on the mounting seat, and the angle of the material to be measured can be adjusted by rotating the mounting seat relative to the frame body; The measured material charge detection device is used to detect the charge of the measured material, and the particle charge detection device is used to measure the charge of the particle after the collision. The measured side material charge detection device and the particle charge detection device are connected to the data processing device. The measured material charge detection device and the particle charge detection device are used to detect the charge of the measured material and the particle after the collision respectively, and the charge of the measured material and the charge of the particle after the collision are mutually verified.

2. The high-speed electrostatic charging test experimental device according to claim 1 is characterized in that: The air particle ejection device comprises a high-pressure gas supply device and an ejection device; The ejection device comprises an air inlet, a feed inlet and a nozzle, and the air inlet, the feed inlet and the nozzle are interconnected; The gas inlet is communicated with a high-pressure gas supply device.

3. The high-speed electrostatic charging test experimental device according to claim 2, characterized in that: An air pressure regulating valve is arranged at the air inlet.

4. The high-speed electrostatic charging test experimental device according to claim 2, characterized in that: The high-pressure gas supply device includes a high-pressure gas pump and a gas storage tank; The outlet end of the high-pressure air pump is communicated with the inlet end of the air storage tank, and the outlet end of the air storage tank is communicated with the air inlet.

5. The high-speed electrostatic charging test experimental device according to claim 2, characterized in that: The material to be measured is arranged on the bracket in an adjustable angle.

6. The high-speed electrostatic charging test experimental device according to claim 1, characterized in that: The device for detecting the electrical quantity of the material to be tested is a non-contact device.

7. The high-speed electrostatic charging test experimental device according to claim 1, characterized in that: The particle charge detection device is a Faraday cup, and the Faraday cup is located at the lower end of the material to be tested.

8. A high-speed electrostatic charging test method, characterized in that: The high-speed electrostatic charging test device according to any one of claims 1 to 7 is used to perform a high-speed electrostatic charging test, comprising the following steps: An air particle ejection device is used to eject air particles, and the air particles are made to collide with the material to be tested; The electric charge detection device of the material under test and the electric charge detection device of the particle matter are used to detect the electric charge of the material under test and the particle matter after collision respectively; The charge of the material being tested and the charge of the particles after collision are mutually verified.

9. The high-speed electrostatic charging test method according to claim 8, characterized in that: Adjust the angle of the material to be tested to obtain the charge of the material when it collides with air particles at different angles.

10. The high-speed electrostatic charging test method according to claim 8, characterized in that: The speed at which the air particle ejection device ejects the air particles is adjusted to obtain the charge of the material being tested at different air particle speeds.

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