CN111665488A - Aviation sonar buoy test method and system - Google Patents
Aviation sonar buoy test method and system Download PDFInfo
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- CN111665488A CN111665488A CN202010355071.9A CN202010355071A CN111665488A CN 111665488 A CN111665488 A CN 111665488A CN 202010355071 A CN202010355071 A CN 202010355071A CN 111665488 A CN111665488 A CN 111665488A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52004—Means for monitoring or calibrating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
Abstract
The application relates to an aviation sonar buoy test method and system. In the aviation sonobuoy testing method, the objects of the aviation sonobuoy test comprise a power module of the aviation sonobuoy, a disassembled state sample and a non-disassembled state sample of the aviation sonobuoy. Each test object needs to be subjected to an environmental stress test; specifically, the power data of the power module and the performance data of the disassembled sample can be respectively measured before, during and after the environmental stress test; and carrying out underwater simulation test on the non-disassembled sample after the environmental stress test, thereby obtaining underwater test data. And obtaining the test result of the aviation sonar buoy based on the power data, the performance data and the underwater test data. Based on the method, the performance index of the aviation sonar buoy subjected to the environmental stress can be fully checked in a laboratory, and the authenticity of environmental profile simulation and the checking sufficiency and reliability are improved.
Description
Technical Field
The application relates to the technical field of sonobuoys, in particular to an aviation sonobuoy testing method and system.
Background
The aerial search and submergence is one of the main search and submergence modes in China. The aviation sonar buoy is high in search efficiency, suitable for large-area detection and not greatly influencing the maneuverability of an anti-submarine aircraft, so that the aviation sonar buoy becomes a piece of searching and submerging equipment which is limited to be used in suspected sea areas in the first time and is an important marine search and detection sensor. The aviation sonobuoy has the functions of realizing detection by receiving radiation noise of a target, or carrying out active detection by transmitting active sound waves, or measuring noise, temperature and the like of a marine environment.
At present, the main operational use time and the mode of use of aviation sonar buoy are: when the anti-submarine aircraft arrives at a suspected sea area, dozens or dozens of sonobuoys are immediately thrown in a predetermined large-area sea area at certain intervals, and each successfully-surviving buoy works according to a set function. The aviation sonobuoy is characterized in that the buoy is thrown into the sea from an aircraft platform, the throwing quantity is large, the buoy can be used once, and after the buoy is used, the buoy can sink to the sea bottom, and the throwing survival rate is concerned.
In the implementation process, the inventor finds that at least the following problems exist in the conventional technology: at present, the aviation sonobuoy mainly uses the military, the environmental stress test method is guiding and universal, and no guidance is provided for test objects, quantity and test schemes by combining the characteristics of the aviation sonobuoy.
Disclosure of Invention
Therefore, it is necessary to provide an aviation sonar buoy test method and system for solving the technical problem that the conventional technology lacks a reliable aviation sonar buoy test scheme.
In order to achieve the above object, in one aspect, an embodiment of the present application provides an aviation sonobuoy testing method, including:
measuring pre-test power data of a first aviation sonobuoy sample and pre-test performance data of a second aviation sonobuoy sample; the first aviation sonobuoy sample is a power module of the aviation sonobuoy, and the second aviation sonobuoy sample is a disassembled state sample of the aviation sonobuoy;
performing an environmental stress test on the first aviation sonobuoy sample, the second aviation sonobuoy sample and the third aviation sonobuoy sample, and measuring power data in the test of the first aviation sonobuoy sample and performance data in the test of the second aviation sonobuoy sample; the third aviation sonobuoy sample is a non-disassembled state sample of the aviation sonobuoy;
carrying out underwater simulation test on a third aviation sonar buoy sample after the environmental stress test to obtain underwater test data;
measuring post-test power data of a first aviation sonobuoy sample after the environmental stress test and post-test performance data of a second aviation sonobuoy sample;
and outputting the test result of the aviation sonar buoy based on the power data before the test, the power data in the test, the power data after the test, the performance data before the test, the performance data in the test, the performance data after the test and the underwater test data.
In one embodiment, the environmental stress test comprises at least one of the following test items:
low temperature test, high temperature test, low pressure test, temperature impact test, acceleration test, impact test, vibration test, damp heat test, mould test and salt spray test.
In one embodiment, in the step of performing the environmental stress test, the execution sequence of each test item is as follows: low temperature test, high temperature test, low pressure test, temperature impact test, acceleration test, impact test, vibration test, damp heat test, mould test and salt spray test.
In one embodiment, the low temperature test comprises a low temperature storage test and a low temperature working test;
the high temperature test includes a high temperature storage test and a high temperature working test.
In one embodiment, the number of third airborne sonobuoy samples is determined by the number of test items; one test item corresponds to at least one third aviation sonobuoy sample.
In one embodiment, the pre-test, in-test, post-test, and underwater test data each include acoustic signal data and/or electrical signal data.
On the other hand, the embodiment of the present application further provides a system for implementing the aviation sonobuoy testing method as described above, including:
the power testing device is used for measuring power data before the test, power data in the test and power data after the test;
the aviation sonar buoy testing device is used for carrying out an environmental stress test and measuring performance data before the test, performance data in the test and performance data after the test;
the buoy underwater simulation testing device is used for carrying out underwater simulation testing to obtain underwater testing data.
In one embodiment, the aviation sonobuoy testing device comprises:
an environmental stress test chamber;
the first loudspeaker is arranged in the environmental stress test box;
the first audio signal source is connected with the first loudspeaker;
the first receiving antenna is arranged in the environmental stress test box;
the first high-frequency receiver is connected with the first receiving antenna;
the first oscilloscope is connected with the first high-frequency receiver;
and the first stabilized voltage power supply is used for connecting the second aviation sonobuoy sample.
In one embodiment, the buoy underwater simulation test device comprises: the device comprises a water pool, a second audio signal source, a second loudspeaker, a second receiving antenna, a second high-frequency receiver and a second oscilloscope;
a pool;
the second loudspeaker is arranged in the water pool;
the second audio signal source is connected with the second loudspeaker;
the second receiving antenna is arranged in the water pool;
the second high-frequency receiver is connected with the second receiving antenna;
and the second oscilloscope is connected with the second high-frequency receiver.
In one embodiment, the power testing device comprises a second voltage-stabilized power supply, an attenuator, a power meter and a coaxial cable;
the second stabilized voltage power supply is used for connecting the first aviation sonar buoy sample;
the attenuator is used for connecting a first aviation sonar buoy sample;
the power meter is connected with the attenuator through a coaxial cable.
One of the above technical solutions has the following advantages and beneficial effects:
the objects of the aviation sonobuoy test include a power module of the aviation sonobuoy, a unpacked state sample and a non-unpacked state sample of the aviation sonobuoy. Each test object needs to be subjected to an environmental stress test; specifically, the power data of the power module can be measured before, during and after the environmental stress test; respectively measuring the performance data of the samples in a disassembled state before, during and after the environmental stress test; and carrying out underwater simulation test on the non-disassembled sample after the environmental stress test, thereby obtaining underwater test data. And obtaining the test result of the aviation sonar buoy based on the power data, the performance data and the underwater test data. Based on the method, the performance index of the aviation sonar buoy subjected to the environmental stress can be fully checked in a laboratory, the authenticity of environmental profile simulation and the checking sufficiency can be greatly improved through underwater simulation test checking, and powerful and reliable technical support is provided for the environmental adaptability evaluation of aviation sonar buoy products.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow diagram of an embodiment of an airborne sonar buoy testing method;
FIG. 2 is a schematic structural diagram of an aviation sonobuoy testing device in the system;
FIG. 3 is a schematic structural diagram of an underwater simulation testing device for buoys in the system;
fig. 4 is a schematic structural diagram of a power testing apparatus in a system.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first oscilloscope may be referred to as a second oscilloscope, and similarly, a second oscilloscope may be referred to as a first oscilloscope, without departing from the scope of the present application. The first oscilloscope and the second oscilloscope are both oscilloscopes, but they are not the same oscilloscope.
It is to be understood that "connection" in the following embodiments is to be understood as "electrical connection", "communication connection", and the like if the connected circuits, modules, units, and the like have communication of electrical signals or data with each other.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Also, as used in this specification, the term "and/or" includes any and all combinations of the associated listed items.
In the main reference standard of the traditional military equipment laboratory environment test method, 27 test methods of low air pressure, low temperature, high temperature, temperature impact, solar radiation, rain, damp and hot, salt spray, mould, sand dust, explosive atmosphere, immersion, acceleration, vibration, noise, impact, blast vibration, ice/freezing rain, inclination and swing, fluid pollution, acid atmosphere, temperature-humidity-vibration-height, vibration-noise-temperature and the like are provided, and each test method is used as a component part and respectively provides test methods, test sequences, test programs, test conditions, test steps, test requirements, result analysis and the like, so as to guide the establishment and test implementation of the military equipment laboratory environment test scheme. However, the traditional laboratory environment test method does not design related test assessment requirements aiming at the characteristics of the aviation sonar buoy, and lacks guidance on selection, quantity, test design and the like of test sample objects of the aviation sonar buoy.
Therefore, the embodiment of the application provides a laboratory environment test method and a test system for an aviation sonar buoy test, and aims to guide the design of the laboratory environment test method and the test scheme of the aviation sonar buoy and verify the environmental adaptability of the aviation sonar buoy.
In one embodiment, there is provided an aviation sonobuoy testing method, as shown in fig. 1, comprising:
step S110, measuring pre-test power data of a first aviation sonobuoy sample and pre-test performance data of a second aviation sonobuoy sample; the first aviation sonobuoy sample is a power module of the aviation sonobuoy, and the second aviation sonobuoy sample is a disassembled state sample of the aviation sonobuoy;
step S120, performing an environmental stress test on the first aviation sonobuoy sample, the second aviation sonobuoy sample and the third aviation sonobuoy sample, and measuring power data in the test of the first aviation sonobuoy sample and performance data in the test of the second aviation sonobuoy sample; the third aviation sonobuoy sample is a non-disassembled state sample of the aviation sonobuoy;
step S130, carrying out underwater simulation test on a third aviation sonar buoy sample after the environmental stress test to obtain underwater test data;
step S140, measuring the tested power data of the first aviation sonobuoy sample after the environmental stress test and the tested performance data of the second aviation sonobuoy sample;
and S150, outputting a test result of the aviation sonar buoy based on the power data before the test, the power data in the test, the power data after the test, the performance data before the test, the performance data in the test, the performance data after the test and the underwater test data.
Specifically, before the aviation sonar buoy is thrown, the aviation sonar buoy is installed and stored in the buoy throwing barrel, and the functional performance test cannot be carried out. In order to ensure that the functional performance is verified to be complete after the aviation sonar buoys in the same batch are subjected to environmental stress, test objects in different levels need to be arranged, and more samples are input to carry out laboratory environmental tests. The aviation sonar buoy is used as one-time equipment, the cost is relatively low, and the design of a large number of test samples is reasonable and feasible.
The objects of the aviation sonobuoy test include at least three types: a first aviation sonobuoy sample, namely a power module of an aviation sonobuoy; a second aviation sonobuoy sample, i.e. a disassembled state sample of the aviation sonobuoy; a third aero sonobuoy sample, a non-disassembled state sample of an aero sonobuoy. The power module is used for testing the change condition of the power data of the aviation sonobuoy; the unpacked state samples are used for testing performance data of the buoy; the samples in the non-disassembled state are used for underwater simulation test after the environmental stress test. It should be noted that the number of the various test objects may be set according to the requirements of actual test precision, environmental stress test items, and the like, and is not specifically limited herein.
Each test object is subjected to an environmental stress test. Specifically, before the environmental stress test, the normal temperature detection can be performed on the first aviation sonar buoy sample to obtain the power data of the power module before the test, and the normal temperature detection can be performed on the second aviation sonar buoy sample to obtain the performance data of the sample in a disassembled state before the test; based on the method, the power state and the performance state of the aviation sonar buoy before the environmental stress test can be obtained. The performance data mainly includes transmission and reception performance parameters of the aviation sonobuoy to the acoustic signal, such as frequency, power, and the like, and may also include electrical performance data of the aviation sonobuoy, and the like, which is not specifically limited herein.
In the process of carrying out the environmental stress test on the first aviation sonobuoy sample, the second aviation sonobuoy sample and the third aviation sonobuoy sample, the first aviation sonobuoy sample can be detected to obtain the power data of the power module in the test, and the second aviation sonobuoy sample is detected to obtain the performance data of the sample in a disassembled state in the test; based on the method, the power state change and the performance state change of the aviation sonobuoy in the environmental stress test process can be obtained. It should be noted that the detection in the environmental stress test process may be real-time detection or periodic detection, and is not limited herein.
After the environmental stress test is completed, carrying out normal temperature detection on the first aviation sonar buoy sample to obtain tested power data of the power module; carrying out normal temperature detection on the second aviation sonar buoy sample to obtain tested performance data of the sample in a disassembled state; and carrying out underwater simulation test on the third aviation sonar buoy sample to obtain underwater test data. Based on the method, the power state, the performance state and the working state of the aviation sonar buoy after the environmental stress test can be obtained. Illustratively, the step of performing an underwater simulation test on the third aviation sonobuoy sample after the environmental stress test to obtain underwater test data includes: the third aviation sonobuoy sample after the environmental stress test is indicated to be unfolded, and an aviation sonobuoy in a working state is obtained; and carrying out underwater simulation test on the aviation sonar buoy in the working state to obtain underwater test data. After the buoy is subjected to the environmental test, the buoy is placed in water to carry out an underwater simulation test, and whether the product can be smoothly unfolded and operated can be detected.
And processing the power data, the performance data and the underwater test data obtained by measurement to obtain a test result of the aviation sonobuoy. Illustratively, the data information can be synthesized to output a report of the test result; or comparing the data information with the device standard data, and outputting a test result based on the data information and the comparison result; data before and after the test can be compared to obtain and output a test result; the test results are presented in various forms and are not particularly limited herein. And, the output mode of the test result includes but is not limited to displaying, printing, uploading to the server and transmitting to the terminal.
It should be noted that, the measurement of power data can be realized mainly by a power meter, and the applicability to the power measurement module can be improved by the cooperation of an attenuator, a stabilized voltage supply and the like; the specific power measuring device can be designed according to actual requirements, and is not particularly limited herein. The performance data measurement can be realized mainly through an oscilloscope and an audio signal source, the test precision can be improved through equipment such as a loudspeaker and a high-frequency receiver, a specific performance measurement device can be designed according to actual requirements, and the specific performance measurement device is not limited in the specific performance measurement device. The environmental stress test can comprise environmental conditions such as temperature, humidity, vibration, impact and the like; the environmental stress test may be implemented by an environmental test chamber, a mechanical test system, or the like, for example, and is not particularly limited herein. The underwater simulation test can be mainly realized by a water pool, an audio signal source and an oscilloscope, the test precision can be improved by equipment such as a loudspeaker, a high-frequency receiver and the like, and a specific underwater measurement device can be designed according to actual requirements and is not specifically limited.
The embodiment of the application can be used for environmental tests in a laboratory, the environmental stress test and the tested underwater simulation test are adopted for system check, the practical use state of the aviation sonar buoy can be closer to, the significance is provided for improving the test check sufficiency, the reliability and the scientificity, the performance index of the aviation sonar buoy subjected to the environmental stress can be guaranteed to be fully checked in the laboratory, the underwater simulation test check can be performed, the authenticity of environmental profile simulation and the check sufficiency are greatly improved, and powerful and reliable technical support is provided for the environmental suitability evaluation of aviation sonar buoy products. Specifically, the embodiment of the application can be used for testing the characteristic of one-time use of the aviation sonar buoy so as to improve the environmental adaptability level of the aviation sonar buoy; on the other hand, this application embodiment still can simulate at the laboratory and test under water to improve aviation sonar buoy's survival rate.
In one embodiment, the environmental stress test comprises at least one of the following test items:
low temperature test, high temperature test, low pressure test, temperature impact test, acceleration test, impact test, vibration test, damp heat test, mould test and salt spray test.
Specifically, the environmental stress test can select corresponding test items according to the requirements of the actual aviation sonobuoy, and based on the test items, the applicability and the reliability of the embodiment of the application can be improved. It should be noted that the test items can be implemented by a high-low temperature wet heat test chamber, a high-low temperature low pressure test chamber, a temperature impact test chamber, a vibration impact test system, an acceleration test system, a salt spray test chamber, a mold test chamber, etc., and are not limited herein. It should be noted that the design of the test items and test conditions may be tailored to the environmental profile of the life of the aviation sonobuoy.
In one example, the temperature range for the low temperature test is-55 ℃ to-20 ℃ (degrees celsius).
In one example, the temperature range for the high temperature test is 55 ℃ to 70 ℃.
In one embodiment, the low temperature test includes a low temperature storage test and a low temperature operation test.
In one example, the low temperature storage test temperature is-55 ℃; the low temperature working test temperature is-20 ℃.
In one embodiment, the high temperature test includes a high temperature storage test and a high temperature operation test.
In one example, the high temperature storage test temperature may be 70 ℃; the high temperature service test temperature may be 55 ℃.
In one example, the test height for the low pressure test may be 8000m (meters).
In one example, the temperature shock test conditions employ a high storage temperature to water temperature and a low storage temperature to water temperature.
In one example, considering the simulation of the effect of rapid temperature changes during the launch of an airborne platform into water, the temperature shock test includes the following conditions: a) the high temperature is 70 ℃, and the low temperature is 4 ℃; b) the high temperature is 4 ℃, and the low temperature is-55 ℃; c) the switching time is not more than 1min (minute); d) cycle number: 3 times.
In one example, in conducting an acceleration test of a structure, the magnitudes are: 1.5g forwards (acceleration of gravity, typically 9.8 m/s)2) 4.5g backward, 6.75g upward, 3.0g downward, 6.75g leftward, 3.0g rightward, test time 1 min/direction.
In one example, the impact test conditions employ a strong impact magnitude.
In one example, impact testing: considering the strong impact encountered by falling on the water surface after throwing, the test is carried out without a throwing cylinder, a half sine wave, 50g and 11ms (millisecond) is adopted in the radial direction, a half sine wave, 100g and 11ms are adopted in the sea entering direction, a movable part is arranged in the sea entering direction (when the buoy enters the sea, the buoy is in the direction ensuring the buoy to enter the sea and is generally vertical to the sea), and the strong impact test is not carried out; the number of trials was 2/direction.
In one example, the vibration test may include: the duration time of the functional vibration test is 1 h/axial, and the test does not work; the endurance vibration test magnitude is 1.6 times of the functional vibration magnitude, the test duration is 9 min/axial direction, and the test process does not work.
In one example, the damp heat test may be performed for 10 cycles per GJB150.9A-2009 test methods and conditions.
In one example, the mold test may be performed according to GJB150.10A-2009 test methods and conditions, and the test species may be Aspergillus niger, Aspergillus flavus, Aspergillus versicolor, Penicillium funiculosum, Chaetomium globosum, etc., for a test period of 28 days.
In one example, the salt spray test may be performed for 96 hours (hours) according to GJB150.11A-2009 test methods and conditions.
In one embodiment, in the step of performing the environmental stress test, the execution sequence of each test item is as follows: low temperature test, high temperature test, low pressure test, temperature impact test, acceleration test, impact test, vibration test, damp heat test, mould test and salt spray test.
Specifically, the test sequence can be designed as: low temperature, high temperature, low pressure, temperature impact, acceleration, impact, vibration, damp heat, mould and salt fog.
In one embodiment, the number of third airborne sonobuoy samples is determined by the number of test items; one test item corresponds to at least one third aviation sonobuoy sample.
Specifically, for underwater test simulation after each test stress, the number of the third aviation sonobuoy samples can be consistent with the number of the environmental test items, and the third aviation sonobuoy samples are placed into water for testing and quit from testing after each environmental test item is completed, so that the reliability of the embodiment of the application is improved. In addition, one test item can also correspond to a plurality of third aviation sonobuoy samples, and the precision of the embodiment of the application is further improved.
In one example, the first and second aviation sonobuoy specimens were arranged in 1 set, respectively, and subjected to all test items, primarily for testing the power and performance of the buoy.
In one embodiment, the pre-test, in-test, post-test, and underwater test data each include acoustic signal data and/or electrical signal data.
Specifically, the performance data referred to in the embodiments of the present application may include acoustic signal data, electrical signal data, and the like. Based on this, the embodiment of the application can mainly test the signal transceiving performance and the operation performance of the disassembled state sample of the aviation sonar buoy, improve the reliability of the test and simplify the test flow.
In one embodiment, an airborne sonobuoy testing method comprises: (1) detecting at normal temperature before testing; before the test, the built power testing device is used for testing the power of the aviation sonobuoy respectively, and main performance data of a test product of the aviation sonobuoy (in a disassembled state) is measured. (2) And (3) carrying out an environmental stress test, namely applying environmental stress to the aviation sonar buoy through an environmental test box and a mechanical test system, and detecting under the environmental stress. (3) And carrying out underwater simulation test by the aviation sonar buoy. (4) And (5) detecting at normal temperature after the test.
In one embodiment, there is provided a system for implementing the above-described aviation sonobuoy testing method, comprising:
the power testing device is used for measuring power data before the test, power data in the test and power data after the test;
the aviation sonar buoy testing device is used for carrying out an environmental stress test and measuring performance data before the test, performance data in the test and performance data after the test;
the buoy underwater simulation testing device is used for carrying out underwater simulation testing to obtain underwater testing data.
Specifically, there are three types of test objects of the aviation sonobuoy, and a corresponding test device needs to be built. The power testing device can be used for measuring the power of the power module; specifically, the power testing device may mainly comprise a power meter and a regulated power supply, and may further be matched with an attenuator, a coaxial cable, and the like, so as to improve the applicability and accuracy of the measurement, which is not specifically limited herein. The aviation sonar buoy testing device can be mainly used for measuring performance data of samples in a disassembled state, and can also be used for carrying out environmental stress tests on a first aviation sonar buoy sample, a second aviation sonar buoy sample and a third aviation sonar buoy sample; specifically, the aviation sonar buoy testing device mainly comprises an environmental stress test box, an audio signal source and an oscilloscope, and can be further matched with a loudspeaker, a high-frequency receiver and the like, so that the applicability and the precision of measurement are improved, and the device is not particularly limited. The buoy underwater simulation testing device can be used for carrying out underwater simulation testing on a third aviation sonar buoy sample after the environmental stress test and detecting to obtain underwater testing data; specifically, the underwater simulation test device for the buoy mainly comprises a water pool, an audio signal source and an oscilloscope, and can be further matched with a loudspeaker, a high-frequency receiver and the like, so that the applicability and the precision of measurement are improved, and the underwater simulation test device is not particularly limited herein.
The embodiment of the application can ensure that the performance index of the aviation sonar buoy subjected to the environmental stress can be fully checked in a laboratory, and the authenticity of environmental profile simulation and the checking sufficiency can be greatly improved through underwater simulation test checking, so that powerful and reliable technical support is provided for the environmental adaptability evaluation of aviation sonar buoy products.
In one embodiment, as shown in fig. 2, the aviation sonobuoy testing device includes:
an environmental stress test chamber;
the first loudspeaker is arranged in the environmental stress test box;
the first audio signal source is connected with the first loudspeaker;
the first receiving antenna is arranged in the environmental stress test box;
the first high-frequency receiver is connected with the first receiving antenna;
the first oscilloscope is connected with the first high-frequency receiver;
and the first stabilized voltage power supply is used for connecting the second aviation sonobuoy sample.
Specifically, the first speaker is matched with the first audio signal source, so that the transmission of the acoustic signal can be realized. The first receiving antenna, the first high-frequency receiver and the first oscilloscope are matched to measure signals transmitted by the aviation sonobuoy. The first regulated power supply may be used to power the second aviation sonobuoy sample. The environmental stress test chamber can be a high-low temperature wet-heat test chamber, a high-low temperature low-pressure test chamber, a temperature impact test chamber, a vibration impact test system, an acceleration test system, a salt fog test chamber, a mould test chamber and the like, and the environmental stress test chamber can also be a comprehensive test chamber capable of realizing various test items, and the environmental stress test chamber is not specifically limited at the position. Based on this, this application embodiment can set up corresponding environmental stress test case according to the demand, improves experimental suitability and functionality.
In one embodiment, as shown in fig. 3, the buoy underwater simulation test device comprises: the device comprises a water pool, a second audio signal source, a second loudspeaker, a second receiving antenna, a second high-frequency receiver and a second oscilloscope;
a pool;
the second loudspeaker is arranged in the water pool;
the second audio signal source is connected with the second loudspeaker;
the second receiving antenna is arranged in the water pool;
the second high-frequency receiver is connected with the second receiving antenna;
and the second oscilloscope is connected with the second high-frequency receiver.
Specifically, the underwater simulation test device for the buoy mainly comprises a water tank and a test environment; wherein, a safety guard fence can be arranged around the pool, and the pool can be used for underwater simulation test by seawater for example; the test environment can be composed of an audio signal source, a loudspeaker, a receiving antenna, a high-frequency receiver, an oscilloscope and the like; the assessment requirement of the real working environment of the buoy can be met. In particular, the second speaker is matched with the second audio signal source, so that the sending of the acoustic signal can be realized. And the second receiving antenna, the second high-frequency receiver and the second oscilloscope are matched to measure signals transmitted by the aviation sonobuoy. Further, the buoy underwater simulation test device can further comprise a third voltage-stabilized power supply for supplying power to a third aviation sonar buoy sample.
In one embodiment, as shown in FIG. 4, the power testing apparatus includes a second regulated power supply, an attenuator, a power meter, and a coaxial cable;
the second stabilized voltage power supply is used for connecting the first aviation sonar buoy sample;
the attenuator is used for connecting a first aviation sonar buoy sample;
the power meter is connected with the attenuator through a coaxial cable.
Specifically, the second stabilized voltage power supply can be used for supplying power to the first aviation sonobuoy sample; the power meter, the coaxial cable and the attenuator are matched to measure the power data of the first aviation sonobuoy sample.
In the description herein, references to the description of "some embodiments," "other embodiments," "desired embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic description of the above terminology may not necessarily refer to the same embodiment or example.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An aviation sonobuoy test method is characterized by comprising the following steps:
measuring pre-test power data of a first aviation sonobuoy sample and pre-test performance data of a second aviation sonobuoy sample; the first aviation sonobuoy sample is a power module of an aviation sonobuoy, and the second aviation sonobuoy sample is a disassembled state sample of the aviation sonobuoy;
performing an environmental stress test on the first, second and third aviation sonobuoy samples, and measuring power data in the test of the first aviation sonobuoy sample and performance data in the test of the second aviation sonobuoy sample; the third aviation sonobuoy sample is a non-disassembled state sample of the aviation sonobuoy;
performing underwater simulation test on the third aviation sonar buoy sample after the environmental stress test to obtain underwater test data;
measuring post-test power data of the first aviation sonobuoy sample after the environmental stress test and post-test performance data of the second aviation sonobuoy sample;
and outputting the test result of the aviation sonar buoy based on the power data before the test, the power data in the test, the power data after the test, the performance data before the test, the performance data in the test, the performance data after the test and the underwater test data.
2. The airborne sonobuoy testing method of claim 1, wherein the environmental stress test includes at least one of the following test items:
low temperature test, high temperature test, low pressure test, temperature impact test, acceleration test, impact test, vibration test, damp heat test, mould test and salt spray test.
3. The airborne sonobuoy testing method of claim 2, wherein in the step of performing the environmental stress test, the execution sequence of each of the test items is, in order: the low temperature test, the high temperature test, the low pressure test, the temperature shock test, the acceleration test, the shock test, the vibration test, the damp heat test, the mold test, and the salt spray test.
4. The airborne sonobuoy testing method of claim 2,
the low-temperature test comprises a low-temperature storage test and a low-temperature working test;
the high-temperature test comprises a high-temperature storage test and a high-temperature working test.
5. An airborne sonobuoy testing method as claimed in claim 1 wherein the number of third airborne sonobuoy samples is determined by the number of test items; one of said test items corresponds to at least one of said third aviation sonobuoy samples.
6. An airborne sonobuoy testing method as claimed in any one of claims 1 to 5 wherein the pre-test, in-test, post-test and underwater test data each comprise acoustic and/or electrical signal data.
7. A system for implementing an airborne sonobuoy test method as claimed in any one of claims 1 to 5, comprising:
the power testing device is used for measuring the power data before the test, the power data in the test and the power data after the test;
the aviation sonar buoy testing device is used for carrying out the environmental stress test and measuring the performance data before the test, the performance data in the test and the performance data after the test;
and the buoy underwater simulation testing device is used for carrying out the underwater simulation test to obtain the underwater test data.
8. The system of claim 7, wherein the aviation sonobuoy testing device comprises:
an environmental stress test chamber;
the first loudspeaker is arranged in the environmental stress test box;
the first audio signal source is connected with the first loudspeaker;
the first receiving antenna is arranged in the environmental stress test box;
a first high frequency receiver connected to the first receiving antenna;
the first oscilloscope is connected with the first high-frequency receiver;
and the first stabilized voltage power supply is used for connecting the second aviation sonobuoy sample.
9. The system of claim 7, wherein the buoy underwater simulation test device comprises: the device comprises a water pool, a second audio signal source, a second loudspeaker, a second receiving antenna, a second high-frequency receiver and a second oscilloscope;
a pool;
the second loudspeaker is arranged in the water pool;
the second audio signal source is connected with the second loudspeaker;
the second receiving antenna is arranged in the water pool;
a second high frequency receiver connected to the second receiving antenna;
and the second oscilloscope is connected with the second high-frequency receiver.
10. The system of claim 7, wherein the power testing device comprises a second regulated power supply, an attenuator, a power meter, and a coaxial cable;
the second stabilized voltage power supply is used for connecting the first aviation sonar buoy sample;
the attenuator is used for connecting the first aviation sonobuoy sample;
the power meter is connected with the attenuator through the coaxial cable.
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