Multi-physical field effect time sequence synchronous measurement method and device based on light gas gun

Abstract

The embodiment of the invention provides a multi-physics field effect time sequence synchronous measurement method and device based on a light-gas gun, the multi-physics field effect time sequence synchronous measurement method based on the light-gas gun is applied to a multi-physics field effect time sequence synchronous measurement system, and the system comprises a velometer, a delay calculator and measurement equipment. The method comprises the steps that a launching instruction is sent to the light-gas gun, and after a projectile of the light-gas gun is ejected out of a launching tube, the flight speed of the projectile is obtained through a velometer; a delay calculator determines a target time based on the flight speed and the target distance; wherein the target time is determined based on the measuring equipment, and the target distance is the distance from the velometer to the target plate; and obtaining test data through the measurement equipment based on the target time, and determining a test result based on the test data. According to the scheme, the problem of synchronous triggering of multiple signal measurement time sequences in an ultra-high-speed impact experiment can be solved, the delay triggering time can be automatically calculated according to the bullet speed signal, and multiple measurement devices are synchronously triggered before impact.

Description

Technical Field

[0001] The embodiments of this specification relate to the field of impact experiment technology, and in particular to a method for synchronously measuring multi-physical field effects based on a light gas gun. Background Art

[0002] Research in the fields of spacecraft protection, kinetic weapons, and asteroid defense requires ground-based hypervelocity kinetic impact experiments. Ground-based experiments are usually conducted on light gas guns, which use lightweight compressed gas to accelerate projectiles. There are first-stage light gas guns, second-stage light gas guns, and third-stage light gas guns. The first-stage light gas gun can load larger mass projectiles to 0.5-2km / s, the second-stage light gas gun can load smaller mass projectiles to 2-7km / s, and the third-stage light gas gun can load projectiles to more than 10km / s. It is necessary to measure the multi-physics field effects in hypervelocity impact experiments to provide support for target damage assessment.

[0003] Hypervelocity impacts will produce a variety of physical phenomena. The speed of the projectile will decrease after impact, the target will break and produce a cloud of debris, the target plate will be deformed by the impact shock wave, the energetic material will produce shock waves, the interaction between the projectile and the target will produce high temperature, the projectile and target materials will undergo phase change and produce plasma, and the movement of charged particles produced by the impact will induce the generation of magnetic fields. The multi-physics field effects that are usually concerned in hypervelocity impact experiments include the projectile-target impact velocity, the projectile residual velocity, the deformation of key structures, the spatiotemporal distribution and characteristics of fragments, the shock wave pressure, the impact temperature field, the electromagnetic field, the plasma density, etc. These effects are actually physical phenomena caused by the impact moment, involving mechanics, chemistry, thermodynamics, optics, electromagnetism, etc. At present, in hypervelocity impact experiments, it is not possible to obtain multi-physics field signals such as the projectile-target impact velocity, the projectile residual velocity, the deformation of key structures, the spatiotemporal distribution and characteristics of fragments, the shock wave pressure, the impact temperature field, the electromagnetic field, and the plasma density in one experiment.

[0004] When a projectile hits a target at high speed, it will cause multiple physical field effects such as force, heat, electricity, and magnetism, and generate multiple physical signals. However, in order to study a single effect, traditional hypervelocity impact experiments only focus on one signal, and ignore the coupling damage to the target caused by the coupling effect of multiple signals. In hypervelocity impact experiments, the impact velocity of the projectile and the residual velocity of the projectile are parameters that characterize the impact characteristics of the projectile, and are the key inputs of the projectile impact effect; signals such as key structural deformation and shock wave pressure are important parameters that characterize the damage to the target structure, and can provide a basis for the assessment of the damage to the target structure; the spatiotemporal distribution and characteristics of the fragments are parameters that characterize the movement law of the fragments after the impact, and can provide a basis for the assessment of the impact effect of the target; the impact temperature field, electromagnetic field, and plasma density signals are important parameters that characterize the impact temperature rise effect, the impact electromagnetic radiation effect, and the plasma effect, and can provide an important basis for the assessment of the impact temperature, electromagnetic field, and plasma on the internal temperature ablation damage and electromagnetic damage of the target.

[0005] When a projectile hits a target at high speed, it will cause multiple physical field effects such as force, heat, electricity, and magnetism at the same time, generating multiple physical signals. However, traditional hypervelocity impact experiments only focus on one signal in order to study a single effect, while ignoring the coupling damage to the target caused by the coupling effect of multiple signals.

[0006] In a hypervelocity kinetic impact, the projectile speed is as high as 3-7km / s, or even more than 10km / s. The impact process lasts only a few microseconds, and all effects are generated and completed instantly. However, the current measurement level of impact effects is low, and it is difficult to trigger multiple measurement devices at the same time. It is no longer possible to obtain multiple physical field signals at the same time, and it is very easy to fail to capture one or more signals due to early triggering or delayed departure. Therefore, a better solution is urgently needed. Summary of the invention

[0007] In view of this, the embodiments of this specification provide a method for synchronously measuring the time series of multiple physical field effects based on a light gas cannon. One or more embodiments of this specification also relate to a device for synchronously measuring the time series of multiple physical field effects based on a light gas cannon, a computing device, a computer-readable storage medium, and a computer program to solve the technical defects existing in the prior art.

[0008] According to a first aspect of an embodiment of this specification, a multi-physical field effect timing synchronization measurement method based on a light gas gun is provided, which is applied to a multi-physical field effect timing synchronization measurement system. The system includes a tachometer, a delay calculator and a measurement device. The method includes: Send a firing command to the light gas gun, and after the projectile of the light gas gun is ejected from the launch tube, obtain the flight speed of the projectile through the speed meter; The delay calculator determines a target time based on the flight speed and the target distance; wherein the target time is determined based on the measuring device and the target distance is the distance from the speed meter to the target plate; Test data is acquired through a measuring device based on a target time, and a test result is determined based on the test data.

[0009] In a possible implementation, the speed meter includes a magnetic speed meter and a light curtain speed meter; The magnetic speed meter and the light curtain speed meter are arranged outside the transmitting tube in sequence; The magnetic speed meter and the light curtain speed meter are both electrically connected to the delay calculator.

[0010] In one possible implementation, the measuring device includes a camera, a shock wave sensor, a strain gauge, a transient pyrometer, a transient magnetic field meter, and a plasma detector.

[0011] In a possible implementation, acquiring test data by using a measuring device based on a target time includes: Capturing the impact image of the projectile and the target plate based on the camera; Acquiring a shock wave pressure signal based on a shock wave sensor; Collect strain signals of strain gauges based on strain gauges; Acquiring temperature signals from temperature probes based on transient pyrometers; The magnetic field signal of the magnetic field coil is collected based on the transient magnetic field meter; The plasma density signal of the plasma probe is collected based on the plasma detector.

[0012] In a possible implementation, the measuring device further includes a debris recovery plate; Accordingly, obtaining test data through a measuring device based on the target time includes: Impact fragments are captured based on a fragment recovery plate, and the impact fragments are measured to determine fragment information; wherein the fragment information includes size information, mass information and shape information.

[0013] In a possible implementation, determining a test result based on the test data includes: Perform three-dimensional reconstruction based on the impact image and determine a reconstruction model; Determine state information at multiple moments based on the reconstructed model; wherein the state information includes speed information and position information; The spatiotemporal distribution characteristics of the fragments are determined based on the state information at multiple moments.

[0014] In a possible implementation, the debris recovery board is a polyurethane board; The number of layers of the polyurethane board is multiple, and the density of each layer of the polyurethane board increases successively; The thickness of the debris recovery plate is greater than or equal to ten centimeters.

[0015] According to a second aspect of the embodiments of this specification, a multi-physical field effect timing synchronization measurement device based on a light gas gun is provided, which is applied to a multi-physical field effect timing synchronization measurement system. The system includes a tachometer, a delay calculator and a measuring device, and the device includes: The speed determination module is configured to send a firing instruction to the light gas gun, and obtain the flight speed of the projectile through the speed meter after the projectile of the light gas gun is ejected from the launch tube; The time determination module is configured to determine the target time based on the flight speed and the target distance by the delay calculator; wherein the target time is determined based on the measurement device, and the target distance is the distance from the speed meter to the target board; The data testing module is configured to obtain test data through a measuring device based on a target time, and determine a test result based on the test data.

[0016] According to a third aspect of an embodiment of this specification, a computing device is provided, including: Memory and processor; The memory is used to store computer executable instructions, and the processor is used to execute the computer executable instructions. When the computer executable instructions are executed by the processor, the steps of the above-mentioned multi-physical field effect timing synchronous measurement method based on light gas gun are implemented.

[0017] According to a fourth aspect of the embodiments of this specification, a computer-readable storage medium is provided, which stores computer-executable instructions. When the instructions are executed by a processor, the steps of the above-mentioned multi-physical field effect timing synchronous measurement method based on a light gas gun are implemented.

[0018] According to a fifth aspect of the embodiments of this specification, a computer program is provided, wherein when the computer program is executed in a computer, the computer is caused to execute the steps of the above-mentioned multi-physical field effect timing synchronous measurement method based on a light gas gun.

[0019] The embodiments of this specification provide a method and device for synchronously measuring the timing of multiple physical field effects based on a light gas gun, wherein the method for synchronously measuring the timing of multiple physical field effects based on a light gas gun is applied to a system for synchronously measuring the timing of multiple physical field effects, the system includes a velocimeter, a delay calculator and a measuring device, and the method includes: sending a firing instruction to the light gas gun, obtaining the flight speed of the projectile through the velocimeter after the projectile of the light gas gun is ejected from the launch tube; the delay calculator determines the target time based on the flight speed and the target distance; wherein the target time is determined based on the measuring device, and the target distance is the distance from the velocimeter to the target plate; obtaining test data through the measuring device based on the target time, and determining the test results based on the test data. The above scheme can solve the problem of synchronous triggering of the timing of multiple signal measurements in hypervelocity impact experiments, and can automatically calculate the delayed trigger time according to the projectile velocity signal, and synchronously trigger multiple measuring devices before the impact. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is a flow chart of a method for synchronously measuring multi-physical field effects based on a light gas gun provided by an embodiment of this specification; Figure 2 It is a system schematic diagram of a method for synchronously measuring multi-physical field effects based on a light gas gun provided by an embodiment of this specification; Figure 3 It is a schematic diagram of the principle of a method for synchronously measuring multi-physical field effects based on a light gas gun provided in one embodiment of this specification; Figure 4 It is a structural schematic diagram of a multi-physical field effect timing synchronization measurement device based on a light gas gun provided by an embodiment of this specification; Figure 5 It is a structural block diagram of a computing device provided by an embodiment of this specification. DETAILED DESCRIPTION

[0020] Many specific details are described in the following description to facilitate a full understanding of this specification. However, this specification can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of this specification, so this specification is not limited to the specific implementation disclosed below.

[0021] The terms used in one or more embodiments of this specification are only for the purpose of describing specific embodiments, and are not intended to limit one or more embodiments of this specification. The singular forms of "a" and "the" used in one or more embodiments of this specification and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in one or more embodiments of this specification refers to and includes any or all possible combinations of one or more associated listed items.

[0022] It should be understood that although the terms first, second, etc. may be used to describe various information in one or more embodiments of this specification, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of one or more embodiments of this specification, the first may also be referred to as the second, and similarly, the second may also be referred to as the first. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0023] In this specification, a method for timing synchronous measurement of multi-physical field effects based on a light gas gun is provided. This specification also relates to a timing synchronous measurement device for multi-physical field effects based on a light gas gun, a computing device, and a computer-readable storage medium, which are described in detail one by one in the following embodiments.

[0024] First, let’s explain the terms in the manual: Light Gas Gun: A loading device used to launch projectiles to very high velocities.

[0025] Timing synchronization trigger signal: The measuring device requires a voltage signal to control it to enter the working start state. The device recording time is limited, and it is necessary to ensure that the working time covers the duration of the entire impact process in order to record the signal. The timing synchronization trigger signal is an electrical signal sent at the same time to trigger multiple devices.

[0026] See also Figure 1 , Figure 1 A flow chart of a method for synchronously measuring the timing of multi-physical field effects based on a light gas gun according to an embodiment of the present specification is shown. The method for synchronously measuring the timing of multi-physical field effects based on a light gas gun is applied to a multi-physical field effect synchronously measuring system. The system includes a tachometer, a delay calculator and a measuring device. The method includes: specifically including the following steps.

[0027] Step 101: Send a firing command to the light gas gun. After the projectile of the light gas gun is ejected from the launch tube, the flight speed of the projectile is obtained through a speed meter.

[0028] In practical applications, before the light gas gun is fired, a soft plate for debris recovery is placed around the target plate according to needs.

[0029] In a possible implementation, the debris recovery board is a polyurethane board; the polyurethane board has multiple layers, and the density of each layer of polyurethane board increases successively; the thickness of the debris recovery board is greater than or equal to ten centimeters.

[0030] In actual application, soft plates for debris recovery are placed around the target plate. Each soft plate is composed of three layers of polyurethane plates, and the density increases from the inside to the outside. The total thickness is not less than 10 cm.

[0031] In a possible implementation, the speed meter includes a magnetic speed meter and a light curtain speed meter; the magnetic speed meter and the light curtain speed meter are sequentially arranged outside the transmitting tube; and the magnetic speed meter and the light curtain speed meter are both electrically connected to the delay calculator.

[0032] In actual applications, a magnetic speed meter and a light curtain speed meter are arranged in sequence outside the launch port to measure the speed of the projectile. Both speed meters are connected to a delay calculator to calculate the delay trigger time. The delay calculator is connected to a trigger controller to generate a trigger electrical signal and control the timing synchronization trigger of the device.

[0033] It should be noted that two speed meters are used to ensure trigger reliability. As long as any speed meter measures the speed, a trigger signal will be generated.

[0034] Step 102: The delay calculator determines a target time based on the flight speed and the target distance; wherein the target time is determined based on the measurement device, and the target distance is the distance from the speed meter to the target board.

[0035] Wherein, the target plate can be an aluminum alloy target plate.

[0036] In actual applications, after the projectile's sabot flies out of the launch tube, it enters the magnetic speed meter and the light curtain detector successively. The magnetic speed meter and the light curtain speed meter measure the speed of the projectile successively. The delay calculator will calculate the flight time before the projectile hits the target board based on the distance input in advance and the measured projectile speed, and then output the delayed trigger time to the trigger controller.

[0037] The embodiment of this specification adopts two speed measurement methods to automatically calculate the delayed trigger time. The trigger controller delays the output of the trigger voltage signal after a certain period of time according to the delayed trigger time, and synchronously triggers multiple measuring devices.

[0038] Step 103: Acquire test data through a measuring device based on the target time, and determine a test result based on the test data.

[0039] In one possible implementation, the measuring device includes a camera, a shock wave sensor, a strain gauge, a transient pyrometer, a transient magnetic field meter, and a plasma detector.

[0040] In practical applications, ultra-high-speed cameras are arranged at different angles on both sides of the target plate, and the high-speed cameras are connected to computers; strain gauges are attached to key structures on the target plate. Shock wave sensors, high-temperature probes, magnetic field coils, and plasma probes are placed around the target plate. The placement of the shock wave sensor is determined according to the measured shock wave position, and the shock wave sensor is connected to a charge amplifier; the high-temperature probe can be placed in front of the target plate or behind the target plate. If the temperature in front of the target plate needs to be measured, it is placed in front of the target, and if the temperature of the debris cloud needs to be measured, it is placed behind the target. The high-temperature probe is connected to a transient pyrometer; the magnetic field coil has a three-dimensional orthogonal copper coil, which is generally placed behind the target to measure the magnetic field generated by the impact, and is connected to a transient magnetic field meter; the plasma probe is generally arranged in two rows of arrays on both sides of the front and back of the target plate according to the required measurement range to obtain plasma density signals at different positions.

[0041] In one possible implementation, obtaining test data based on the target time through the measuring equipment includes: capturing the impact image of the projectile and the target plate based on the camera; obtaining the shock wave pressure signal based on the shock wave sensor; collecting the strain signal of the strain gauge based on the strain gauge; collecting the temperature signal of the temperature probe based on the transient pyrometer; collecting the magnetic field signal of the magnetic field coil based on the transient magnetic field meter; and collecting the plasma density signal of the plasma probe based on the plasma detector.

[0042] In practical applications, see Figure 3 The trigger controller gives a trigger voltage signal after a certain period of time according to the delayed trigger time, ensuring that the ultra-high-speed camera, charge amplifier, strain gauge, transient pyrometer, transient magnetic field meter and plasma detector are synchronously triggered at the moment when the projectile hits the target plate, recording the physical phenomena that occur during the impact process that lasts only a few microseconds. Two ultra-high-speed cameras placed at different angles take impact photos and output them to the computer; the charge amplifier collects the shock wave pressure signal obtained by the shock wave sensor and outputs the signal to the computer; the strain gauge collects the strain signal obtained by the strain gauge and outputs the signal to the computer; the transient pyrometer collects the temperature signal obtained by the high-temperature probe and outputs the signal to the computer; the transient magnetic field meter collects the magnetic field signal obtained by the magnetic field coil and outputs the signal to the computer; the plasma detector collects the plasma density signal obtained by the plasma probe and outputs the signal to the computer.

[0043] In one possible implementation, the measuring device also includes a debris recovery plate; accordingly, obtaining test data based on the target time through the measuring device includes: capturing impact fragments based on the debris recovery plate, measuring the impact fragments, and determining fragment information; wherein the fragment information includes size information, mass information, and shape information.

[0044] In practical applications, the debris recovery soft board captures the fragments produced by the impact. After the experiment, the fragments can be recovered on the soft board, and the physical characteristics of the fragments such as size, mass, and shape can be obtained by measurement.

[0045] In summary, the embodiments of this specification can use a variety of measurement equipment to simultaneously collect multi-physical field signals such as projectile-target impact velocity, projectile residual velocity, key structure deformation, fragmentation spatiotemporal distribution and characteristics, shock wave pressure, impact temperature field, electromagnetic field, plasma density, etc. The test data obtained by the above multiple test equipment can realize the synchronous measurement of transient multi-physical field signals in the hypervelocity impact experiment, solving the problem of obtaining multi-physical field signals simultaneously in a hypervelocity impact experiment.

[0046] In one possible implementation, the test results are determined based on the test data, including: performing three-dimensional reconstruction based on the impact image to determine the reconstruction model; determining state information at multiple moments based on the reconstruction model; wherein the state information includes speed information and position information; and determining the spatiotemporal distribution characteristics of the debris based on the state information at multiple moments.

[0047] Specifically, two ultra-high-speed cameras placed at different angles take photos of the impact and output them to a computer. After the experiment, three-dimensional reconstruction can be performed based on the photos to obtain information such as the position and speed of the fragments at any time, and the spatiotemporal distribution characteristics of the fragments can be obtained.

[0048] The embodiments of this specification provide a method and device for synchronously measuring the timing of multiple physical field effects based on a light gas gun, wherein the method for synchronously measuring the timing of multiple physical field effects based on a light gas gun is applied to a system for synchronously measuring the timing of multiple physical field effects, the system includes a velocimeter, a delay calculator and a measuring device, and the method includes: sending a firing instruction to the light gas gun, obtaining the flight speed of the projectile through the velocimeter after the projectile of the light gas gun is ejected from the launch tube; the delay calculator determines the target time based on the flight speed and the target distance; wherein the target time is determined based on the measuring device, and the target distance is the distance from the velocimeter to the target plate; obtaining test data through the measuring device based on the target time, and determining the test results based on the test data. The above scheme can solve the problem of synchronous triggering of the timing of multiple signal measurements in hypervelocity impact experiments, and can automatically calculate the delayed trigger time according to the projectile velocity signal, and synchronously trigger multiple measuring devices before the impact.

[0049] Corresponding to the above method embodiment, this specification also provides an embodiment of a multi-physical field effect timing synchronization measurement device based on a light gas gun, Figure 4 FIG. 1 is a schematic diagram showing a structure of a multi-physical field effect timing synchronization measurement device based on a light gas gun provided by an embodiment of the present specification. Figure 4As shown, the device includes a timing synchronization measurement system for multi-physical field effects, the system includes a speed meter, a delay calculator and a measurement device, and the device includes: The speed determination module 401 is configured to send a firing instruction to the light gas gun, and obtain the flight speed of the projectile through a speed meter after the projectile of the light gas gun is ejected from the launch tube; The time determination module 402 is configured to determine the target time based on the flight speed and the target distance by a delay calculator; wherein the target time is determined based on the measurement device, and the target distance is the distance from the speed meter to the target board; The data testing module 403 is configured to obtain test data through a measuring device based on the target time, and determine a test result based on the test data.

[0050] In a possible implementation, the speed determination module 401 is further configured to: The speed meter includes a magnetic speed meter and a light curtain speed meter; The magnetic speed meter and the light curtain speed meter are arranged outside the transmitting tube in sequence; The magnetic speed meter and the light curtain speed meter are both electrically connected to the delay calculator.

[0051] In a possible implementation, the data testing module 403 is further configured to: The measurement equipment includes cameras, shock wave sensors, strain gauges, transient pyrometers, transient magnetic field meters and plasma probes.

[0052] In a possible implementation, the data testing module 403 is further configured to: Capturing the impact image of the projectile and the target plate based on the camera; Acquiring a shock wave pressure signal based on a shock wave sensor; Collect strain signals of strain gauges based on strain gauges; Acquiring temperature signals from temperature probes based on transient pyrometers; The magnetic field signal of the magnetic field coil is collected based on the transient magnetic field meter; The plasma density signal of the plasma probe is collected based on the plasma detector.

[0053] In a possible implementation, the data testing module 403 is further configured to: The measurement equipment also includes a debris recovery plate; Accordingly, obtaining test data through a measuring device based on the target time includes: Impact fragments are captured based on a fragment recovery plate, and the impact fragments are measured to determine fragment information; wherein the fragment information includes size information, mass information and shape information.

[0054] In a possible implementation, the data testing module 403 is further configured to: Perform three-dimensional reconstruction based on the impact image and determine a reconstruction model; Determine state information at multiple moments based on the reconstructed model; wherein the state information includes speed information and position information; The spatiotemporal distribution characteristics of the fragments are determined based on the state information at multiple moments.

[0055] In a possible implementation, the data testing module 403 is further configured to: The debris recovery board is a polyurethane board; The number of layers of the polyurethane board is multiple, and the density of each layer of the polyurethane board increases successively; The thickness of the debris recovery plate is greater than or equal to ten centimeters.

[0056] The embodiments of this specification provide a method and device for synchronously measuring the timing of multiple physical field effects based on a light gas gun, wherein the device for synchronously measuring the timing of multiple physical field effects based on a light gas gun is applied to a synchronously measuring system for multiple physical field effects, the system includes a velocimeter, a delay calculator and a measuring device, and the method includes: sending a firing instruction to the light gas gun, obtaining the flight speed of the projectile through the velocimeter after the projectile of the light gas gun is ejected from the launch tube; the delay calculator determines the target time based on the flight speed and the target distance; wherein the target time is determined based on the measuring device, and the target distance is the distance from the velocimeter to the target plate; obtaining test data through the measuring device based on the target time, and determining the test results based on the test data. The above scheme can solve the problem of synchronously triggering the timing of multiple signal measurements in hypervelocity impact experiments, and can automatically calculate the delayed trigger time according to the projectile velocity signal, and synchronously trigger multiple measuring devices before the impact.

[0057] The above is a schematic scheme of a multi-physical field effect timing synchronization measurement device based on a light gas cannon in this embodiment. It should be noted that the technical scheme of the multi-physical field effect timing synchronization measurement device based on a light gas cannon and the technical scheme of the multi-physical field effect timing synchronization measurement method based on a light gas cannon belong to the same concept, and the details of the technical scheme of the multi-physical field effect timing synchronization measurement device based on a light gas cannon that are not described in detail can all be referred to the description of the technical scheme of the multi-physical field effect timing synchronization measurement method based on a light gas cannon.

[0058] Figure 5 The structure block diagram of a computing device 500 provided according to an embodiment of the present specification is shown. The components of the computing device 500 include but are not limited to a memory 510 and a processor 520. The processor 520 is connected to the memory 510 via a bus 530, and the database 550 is used to store data.

[0059] The computing device 500 also includes an access device 540 that enables the computing device 500 to communicate via one or more networks 560. Examples of these networks include a public switched telephone network (PSTN), a local area network (LAN), a wide area network (WAN), a personal area network (PAN), or a combination of communication networks such as the Internet. The access device 540 may include one or more of any type of network interface (e.g., a network interface card (NIC)) that is wired or wireless, such as an IEEE 802.11 wireless local area network (WLAN) wireless interface, a world-wide interoperability for microwave access (Wi-MAX) interface, an Ethernet interface, a universal serial bus (USB) interface, a cellular network interface, a Bluetooth interface, and a near field communication (NFC).

[0060] In one embodiment of the present specification, the above components of the computing device 500 and Figure 5 Other components not shown in the figure may also be connected to each other, for example, via a bus. It should be understood that Figure 5 The computing device structure block diagram shown is only for the purpose of illustration, and is not intended to limit the scope of this specification. Those skilled in the art can add or replace other components as needed.

[0061] The computing device 500 may be any type of stationary or mobile computing device, including a mobile computer or mobile computing device (e.g., a tablet computer, a personal digital assistant, a laptop computer, a notebook computer, a netbook, etc.), a mobile phone (e.g., a smart phone), a wearable computing device (e.g., a smart watch, smart glasses, etc.), or other types of mobile devices, or a stationary computing device such as a desktop computer or a personal computer (PC). The computing device 500 may also be a mobile or stationary server.

[0062] Among them, the processor 520 is used to execute the following computer executable instructions, which, when executed by the processor, implement the steps of the above-mentioned multi-physical field effect timing synchronization measurement method based on a light gas cannon. The above is a schematic scheme of a computing device of this embodiment. It should be noted that the technical scheme of the computing device and the technical scheme of the above-mentioned multi-physical field effect timing synchronization measurement method based on a light gas cannon belong to the same concept. The details not described in detail in the technical scheme of the computing device can be found in the description of the technical scheme of the above-mentioned multi-physical field effect timing synchronization measurement method based on a light gas cannon.

[0063] An embodiment of the present specification further provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the steps of the above-mentioned multi-physical field effect timing synchronous measurement method based on a light gas gun.

[0064] The above is a schematic scheme of a computer-readable storage medium of this embodiment. It should be noted that the technical scheme of the storage medium and the technical scheme of the multi-physical field effect time-series synchronous measurement method based on the light gas gun are of the same concept, and the details not described in detail in the technical scheme of the storage medium can be found in the description of the technical scheme of the multi-physical field effect time-series synchronous measurement method based on the light gas gun.

[0065] An embodiment of the present specification further provides a computer program, wherein when the computer program is executed in a computer, the computer is caused to execute the steps of the above-mentioned multi-physical field effect time-series synchronous measurement method based on a light gas gun.

[0066] The above is a schematic scheme of a computer program of this embodiment. It should be noted that the technical scheme of the computer program and the technical scheme of the multi-physical field effect time-series synchronous measurement method based on the light gas gun are of the same concept, and the details not described in detail in the technical scheme of the computer program can be found in the description of the technical scheme of the multi-physical field effect time-series synchronous measurement method based on the light gas gun.

[0067] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0068] The computer instructions include computer program codes, which may be in source code form, object code form, executable files or some intermediate forms, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content contained in the computer-readable medium may be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0069] It should be noted that, for the above-mentioned method embodiments, for the sake of simplicity of description, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the embodiments of this specification are not limited by the order of the actions described, because according to the embodiments of this specification, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the embodiments of this specification.

[0070] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0071] The preferred embodiments of this specification disclosed above are only used to help explain this specification. The optional embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of the embodiments of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the embodiments of this specification, so that technicians in the relevant technical field can well understand and use this specification. This specification is only limited by the claims and their full scope and equivalents.

Claims

1. A method for synchronously measuring multi-physical field effects based on a light gas gun, characterized in that: Applied to a multi-physics field effect timing synchronization measurement system, the system includes a speed meter, a delay calculator and a measurement device, and the method includes: sending a firing command to the light gas gun, and obtaining the flight speed of the projectile through the speed meter after the projectile of the light gas gun is ejected from the launch tube; The delay calculator determines a target time based on the flight speed and the target distance; wherein the target time is determined based on the measuring device, and the target distance is the distance from the speed meter to the target plate; Test data is acquired by the measuring device based on the target time, and a test result is determined based on the test data.

2. The method according to claim 1, characterized in that: The speed meter includes a magnetic speed meter and a light curtain speed meter; The magnetic speed meter and the light curtain speed meter are sequentially arranged outside the transmitting tube; The magnetic speed meter and the light curtain speed meter are both electrically connected to the delay calculator.

3. The method according to claim 1, characterized in that The measuring equipment includes a camera, a shock wave sensor, a strain gauge, a transient pyrometer, a transient magnetic field meter and a plasma detector.

4. The method according to claim 3, characterized in that The acquiring test data by the measuring device based on the target time comprises: capturing an impact image of the projectile and the target plate based on the camera; Acquiring the shock wave pressure signal based on a shock wave sensor; Collecting strain signals of the strain gauge based on the strain gauge; Collecting a temperature signal of a temperature probe based on the transient pyrometer; Collecting magnetic field signals of the magnetic field coil based on the transient magnetic field meter; A plasma density signal of a plasma probe is collected based on the plasma detector.

5. The method according to claim 4, characterized in that The measuring device also includes a debris recovery plate; Accordingly, acquiring test data through the measuring device based on the target time includes: The fragment recovery plate captures the impact fragments, measures the impact fragments, and determines the fragment information; wherein the fragment information includes size information, mass information, and shape information.

6. The method according to claim 4, characterized in that The determining of the test result based on the test data comprises: Perform three-dimensional reconstruction based on the impact image and determine a reconstruction model; Determine state information at multiple moments based on the reconstructed model; wherein the state information includes speed information and position information; The spatiotemporal distribution characteristics of the fragments are determined based on the state information at the multiple time moments.

7. The method according to claim 5, characterized in that The debris recovery board is a polyurethane board; The polyurethane board has multiple layers, and the density of each layer of the polyurethane board increases successively; The thickness of the debris recovery plate is greater than or equal to ten centimeters.

8. A multi-physical field effect time-series synchronous measurement device based on a light gas gun, characterized in that: Applicable to a multi-physics field effect timing synchronization measurement system, the system includes a speed meter, a delay calculator and a measurement device, and the device includes: a speed determination module configured to send a firing instruction to the light gas gun, and obtain a flight speed of the projectile through the speed measuring device after the projectile of the light gas gun is ejected from the launch tube; a time determination module configured so that the delay calculator determines a target time based on the flight speed and a target distance; wherein the target time is determined based on the measurement device, and the target distance is the distance from the speed meter to the target board; The data testing module is configured to obtain test data through the measuring device based on the target time, and determine a test result based on the test data.

9. A computing device, characterized in that include: Memory and processor; The memory is used to store computer executable instructions, and the processor is used to execute the computer executable instructions. When the computer executable instructions are executed by the processor, the steps of the multi-physical field effect timing synchronous measurement method based on a light gas gun according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the steps of the method for time-series synchronous measurement of multi-physical field effects based on a light gas gun as claimed in any one of claims 1 to 7.

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