CN103673791B - A kind of check and evaluation system for the damage of target high-speed impact - Google Patents
A kind of check and evaluation system for the damage of target high-speed impact Download PDFInfo
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Abstract
The present invention relates to a kind of check and evaluation system for the damage of target high-speed impact, target surface is around covering Fibre Optical Sensor grid, after being subject to outside high-speed impact, the size of optical fiber impact microphone detection impingement region, and be sent to high-speed data treating apparatus, be arranged in the affected area of target cabin inner pressure vessel sensor group detection target enclosure interior and affected area positional information is sent to high-speed data treating apparatus, the stress deformation information of stress strain gauge detection target diverse location, high-speed data treating apparatus is exported to after demodulation, Larger Dynamic Inertial Measurement Unit sensitivity clashes into the attitude information of rear target, and send high-speed data treating apparatus to, high-speed data treating apparatus will be distributed to solid data and high-speed data remote measurement dispensing device after above-mentioned information analysis process.The present invention can detect damage information after target high-speed impact in real time, and assesses damage fire, solves the problem of armament systems ability to function and fragmentation effect assessment.
Description
Technical field
The present invention relates to a kind of check and evaluation system for the damage of target high-speed impact, belong to weapon fragmentation effect assessment technology field in range test.
Background technology
In the range test of high-altitude, weapon mainly relies on kinetic energy body to tackle or kinetic energy block clashes into attack target.Because target is mainly far away apart from surface-based observing station when suffering interception, shock, adopt the external observation means such as high-speed photography cannot determine impact damage position and inner real damage effect, can only assess qualitatively weapon fragmentation effect, can not quantitative assessment be carried out.Therefore, scientific and rational assessment weapon fragmentation effect, target self must be furnished with damage check evaluating system.Current existing target detection means are effective, accurately can not locate impingement position, also cannot detect clashing into the structural deformation brought, not making comprehensive analysis and evaluation by target internal inspection device to weapon fragmentation effect.
Traditional shock detects can use electrical sensor, but this method cannot use in high-speed impact situation, because require that under high-speed impact sensor response speed must be fast, otherwise the stress clashing into generation in a short period of time will damage sensor.Even if sensor to be arranged in the position away from rum point, this method also often cannot be proved effective, because the speed that the relative velocity specific stress of high-speed impact is propagated in body structure sometimes also wants fast, before sensor detects the stress of shock, sensor is just knocked breaking-up.Also can use discrete electrical sensor to realize to clash into and detect, in this manner, the sensor (as wire, piezoelectric ceramics etc.) of conductive-type is arranged in the impingement region of precognition, and testing circuit is placed on rear.But this mode reliability is not high, because under this ultrasonic high-speed impact, the physical effect of some the unknowns such as plasma can be formed on impact site surface, produce strong electromagnetic interference, make electrical sensor measurement become unstable, the surge current of generation or voltage even may damage the testing circuit of rear end.Due to optical fiber have that volume is little, quality is light, intensity is high, good bandability, pliability are good, by Electromagnetic Interference, do not need additional power source, corrosion-resistant, be easy to imbed structure, set up monitoring grid, low cost and other advantages, so its sensor application field is quite extensive, existing researcher is applied to high-speed impact fault localization system.
Target is when being clashed into by kinetic energy body, the kinetic energy impact be subject to is large, can acute variation be there is in attitude, the angular speed produced, acceleration dynamic range are large, the attitude transducer of target self cannot measure the attitude information of this wide range great dynamic range, must rely on extra attitude transducer to realize.Larger Dynamic inertial measuring unit adopts silicon micro-gyroscope and silicon micro accerometer, and volume is little, dynamic range is large, range is high, cost is low, the application be proper for such an occasion.
Target is from suffering to attack to finally being destroyed, system time is extremely of short duration, traditional telemetry system cannot within the so of short duration time data telemetry to ground, must adopt high-speed data remote measurement dispensing device that data are sent to grounded receiving station, in addition, also need to utilize solid data Backup Data, after range test terminates, reclaim retaking of a year or grade.
Summary of the invention
The object of the invention is to the above-mentioned defect overcoming prior art, a kind of check and evaluation system for the damage of target high-speed impact is provided, this system can detect structural deformation after impingement position, size, shock, the inner extent of damage of target and attitudes vibration in real time, solves the monitoring and evaluation problem that range test target is subject to kill rank when weapon kills and wounds.
Above-mentioned purpose of the present invention is mainly achieved by following technical solution:
A kind of check and evaluation system for the damage of target high-speed impact, comprise optical fiber impact microphone, pressure vessel sensor group, Larger Dynamic Inertial Measurement Unit, stress strain gauge group, high-speed data treating apparatus, solid data and HRT high-rate telemetry dispensing device, wherein optical fiber impact microphone comprises light path device, Fibre Optical Sensor grid and photodetection circuit, Fibre Optical Sensor grid is around covering and being fixed on target surface of shell, light path device, photodetection circuit, pressure vessel sensor group, Larger Dynamic Inertial Measurement Unit, stress strain gauge and high-speed data treating apparatus are arranged on target enclosure interior,
The optical signal transmission that light path device in optical fiber impact microphone sends is to Fibre Optical Sensor grid, and the optical signal reflected through Fibre Optical Sensor grid is detected by photodetection circuit; Photodetection circuit is by detecting the described optical signal reflected through Fibre Optical Sensor grid from the change had to nothing, determine the on off operating mode of corresponding sensor fibre in Fibre Optical Sensor grid, demodulate the corresponding rum point position of Fibre Optical Sensor grid and impingement region size, and described rum point position and impingement region size information are sent to high-speed data treating apparatus;
Pressure vessel sensor group is made up of multiple pressure vessel sensor, detects the affected area of target enclosure interior and the positional information of affected area is sent to high-speed data treating apparatus;
The angular speed in X, Y, Z tri-directions and angular acceleration information during the flight of Larger Dynamic Inertial Measurement Unit real-time measurement target drone, and described angular speed and angular acceleration information are carried out after packing is compressed, send to high-speed data treating apparatus; Wherein X-direction is target heading, and Y, Z-direction are the direction of any two vertical vector indications in the plane perpendicular to X-direction;
Stress strain gauge group comprises sensor sensing head and demodulates information unit, wherein sensor sensing head is arranged in the diverse location of target inside, for detecting the stress deformation of target diverse location, and by the stress deformation information transmission of diverse location to demodulates information unit, demodulates information unit exports to high-speed data treating apparatus after carrying out demodulation to described stress deformation information;
Stress deformation information after the demodulation that angular speed after the packing compression that high-speed data treating apparatus receives the positional information of rum point position that optical fiber impact microphone sends and the affected area that impingement region size information, pressure vessel sensor send, Larger Dynamic Inertial Measurement Unit sends and angular acceleration information, stress strain gauge send, obtain target clash into after not status information in the same time, and send to solid data and HRT high-rate telemetry dispensing device;
The status information received from high-speed data treating apparatus stores by solid data;
The status information received from high-speed data treating apparatus outwards sends by HRT high-rate telemetry dispensing device.
In the above-mentioned check and evaluation system for the damage of target high-speed impact, Larger Dynamic Inertial Measurement Unit comprises the gyro group of three orthogonal installations, the accelerometer group of three orthogonal installations and Information Collecting & Processing circuit, X when wherein the real-time measurement target drone of the gyro group of three orthogonal installations flies, Y, the angular velocity information in Z tri-directions, and send to Information Collecting & Processing circuit, X when the real-time measurement target drone of accelerometer group of three orthogonal installations flies, Y, the angular acceleration information in Z tri-directions, and send to Information Collecting & Processing circuit, Information Collecting & Processing circuit sends to high-speed data treating apparatus after described angular speed and angular acceleration information being carried out packing compression, wherein X-direction is target heading, and Y, Z-direction are the direction of any two vertical vector indications in the plane perpendicular to X-direction.
In the above-mentioned check and evaluation system for the damage of target high-speed impact, Fibre Optical Sensor grid can by longitude and latitude staggered or staggered helical mode around covering and being fixed on target surface of shell.
In the above-mentioned check and evaluation system for the damage of target high-speed impact, in Fibre Optical Sensor grid, any two neighboring sensor optical fiber pitch can require adjustment according to impact damage position detection accuracy, and the less corresponding certainty of measurement of spacing is higher.
In the above-mentioned check and evaluation system for the damage of target high-speed impact, the gyro of three orthogonal installations of Larger Dynamic Inertial Measurement Unit is silicon micro-gyroscope, and the accelerometer of three orthogonal installations is silicon micro accerometer.
In the above-mentioned check and evaluation system for the damage of target high-speed impact, stress strain gauge group is strain resistance-capacitance type or fiber Bragg grating type, sensing head and signal demodulation unit separated.
In the above-mentioned check and evaluation system for the damage of target high-speed impact, the output transmission of HRT high-rate telemetry dispensing device is wider than 50MHZ.
The present invention's advantage is compared with prior art:
(1), the present invention is used for the optical fiber impact microphone that adopts in the check and evaluation system of target high-speed impact damage and has fast response time, anti-strong electromagnetic, advantage that accuracy of detection is adjustable flexibly according to different demand, also there is good environmental adaptability, advantage that reliability is high simultaneously, the requirement used under meeting the mal-conditions such as the high temperature in target flight course, vibration;
(2), the present invention be used for the pressure vessel sensor that adopts and stress strain gauge in the check and evaluation system of target high-speed impact damage can detect target be impacted after internal injury degree, especially clash into this for kinetic energy block not to be the fatal situation of a blow, more fully can to weigh, assess fragmentation effect;
(3), the present invention is used for the Larger Dynamic inertial measuring unit that have employed innovative design in the check and evaluation system of target high-speed impact damage, Larger Dynamic inertial measuring unit comprises the gyro group of three orthogonal installations, the accelerometer group of three orthogonal installations and Information Collecting & Processing circuit, because clash into, the original flight path of target will be changed, there is the various big-movements such as rolling, the gyro group of Larger Dynamic Inertial Measurement Unit and accelerometer group can detect the change of this track in real time, obtain the attitude information of target during kinetic energy body shock target, the change of attitude before and after clashing into is utilized can better to assess the target extent of damage and biological treatability,
(4), the present invention is used for adopting HRT high-rate telemetry dispensing device in the check and evaluation system of target high-speed impact damage and passing target damage information at present, the damage position of long-range real-time online ground display target housing, internal injury degree and whether possess the information of survival ability, or be stored in reclaim in solid data that target carries after reprocessing, there is very high reliability;
(5), the present invention's check and evaluation system of being used for the damage of target high-speed impact have detect comprehensively, precision is high, reliability is high, good environmental adaptability, the flexibly advantage such as adjustable, has stronger practicality.
Accompanying drawing explanation
Fig. 1 is the check and evaluation system architecture schematic diagram that the present invention damages for target high-speed impact.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Be illustrated in figure 1 the check and evaluation system architecture schematic diagram that the present invention damages for target high-speed impact, the present invention comprises optical fiber impact microphone 1, pressure vessel sensor group 2, Larger Dynamic Inertial Measurement Unit 3, stress strain gauge group 4, high-speed data treating apparatus 5, solid data 6 and HRT high-rate telemetry dispensing device 7 for the check and evaluation system of target high-speed impact damage as seen from the figure.Wherein optical fiber impact microphone 1 comprises light path device 101, Fibre Optical Sensor grid 102 and photodetection circuit 103, Fibre Optical Sensor grid 102 is around covering and being fixed on target (target drone, target missile) surface of shell, and light path device 101, photodetection circuit 103, pressure vessel sensor group 2, Larger Dynamic Inertial Measurement Unit 3, stress strain gauge 4 and high-speed data treating apparatus 5 are arranged on target enclosure interior.
Fibre Optical Sensor grid 102 in optical fiber impact microphone 1 can by longitude and latitude staggered or staggered helical mode around covering and being fixed on target surface of shell, the optical signal transmission that light path device 101 sends is to Fibre Optical Sensor grid 102, and the optical signal reflected through Fibre Optical Sensor grid 102 is detected by photodetection circuit 103; Photodetection circuit 103 is by detecting the described optical signal reflected through Fibre Optical Sensor grid 102 from the change had to nothing, determine the on off operating mode of corresponding sensor fibre in Fibre Optical Sensor grid 102, demodulate the corresponding rum point position of Fibre Optical Sensor grid 102 and impingement region size, and this rum point position and impingement region size information are sent to high-speed data treating apparatus 5.
Fibre Optical Sensor grid 102 in the fixed form of target surface of shell is: first, groove is offered according to optical fiber around covering on direction at target surface of shell, then sensor fibre is laid in groove, every 3-5cm, an adhesive spots is set, adhesive spots width is less than 1cm, utilize elastic modelling quantity to be greater than the epoxide-resin glue of 200Mpa or sensor fibre is fixed in groove by inorganic glue, the space between sensor fibre and groove adopts elastic modelling quantity to be less than the silicon rubber of 100Mpa or gel is filled.Wherein, epoxide-resin glue, inorganic glue, silicon rubber or gel with the addition of filler, the thermal coefficient of expansion of filler is less than 23 × 10-6/ DEG C, filler is 1% ~ 15% relative to the mass percent of bonding agent, its effect is that the thermal coefficient of expansion reduced between bonding agent and optical fiber, target construction material does not mate, and to avoid in dramatic temperature change procedure that fiber stress is excessive to be damaged; Sensor fibre adopts polyimide coating, or carbon coating, or metal coating protection.In Fibre Optical Sensor grid 102, any two neighboring sensor optical fiber pitch can require adjustment according to impact damage position detection accuracy, and the less corresponding certainty of measurement of spacing is higher.
Pressure vessel sensor group 2 is made up of multiple pressure vessel sensor, detects the affected area of target enclosure interior and the positional information of affected area is sent to high-speed data treating apparatus 5.Pressure vessel sensor group 2 can form according to the pressure vessel sensor of target interior size by varying number, these pressure vessel sensors are distributed in the inner suitable place of target as required, pressure vessel inside is full of inertia gases at high pressure, and sensor line separates with sensor head, when after shock, sensor line detected pressures compromised container situation.Pressure vessel sensor 2 and can need the point of monitoring to place according to target inside real space.
Larger Dynamic Inertial Measurement Unit 3 comprises the gyro group 301 of three orthogonal installations, the accelerometer group 302 of three orthogonal installations and Information Collecting & Processing circuit 303, wherein X during the measurement target drone flight in real time of the gyro group 301 of three orthogonal installations, Y, the angular velocity information in Z tri-directions, and send to Information Collecting & Processing circuit 303, X when the real-time measurement target drone of accelerometer group 302 of three orthogonal installations flies, Y, the angular acceleration information in Z tri-directions, and send to Information Collecting & Processing circuit 303, Information Collecting & Processing circuit 303 sends to high-speed data treating apparatus 5 after this angular speed and angular acceleration information being carried out packing compression.Wherein X-direction is target heading, and Y, Z-direction are the direction of any two vertical vector indications in the plane perpendicular to X-direction.
The gyro 301 of three orthogonal installations of Larger Dynamic Inertial Measurement Unit 3 is silicon micro-gyroscope, and the accelerometer 302 of three orthogonal installations is silicon micro accerometer, and the processing unit that signal acquisition processing circuit 303 is core by single-chip microcomputer, DSP or FPGA forms.
Stress strain gauge group 4 comprises sensor sensing head 401 and demodulates information unit 402, wherein sensor sensing head 401 is arranged in the diverse location of target inside, for detecting the stress deformation of target diverse location, and by the stress deformation information transmission of diverse location to demodulates information unit 402, demodulates information unit 402 exports to high-speed data treating apparatus after carrying out demodulation to this stress deformation information.Stress strain gauge 4 can be traditional strain resistance-capacitance type, also can be novel fiber Bragg grating type, and stress strain gauge sensing head 401 is separated with signal demodulation unit 402.
Stress strain gauge 4 needs the position requirement of monitoring according to target, is attached to cabin section inwall.First utilize elastic modelling quantity to be greater than the epoxide-resin glue of 200Mpa or stress strain gauge centre is fixed on cabin section inwall by inorganic glue, stress strain gauge 4 surrounding adopts elastic modelling quantity to be less than the silicon rubber of 100Mpa or gel is reinforced.Wherein, epoxide-resin glue, inorganic glue, silicon rubber or gel with the addition of filler, and the thermal coefficient of expansion of filler is less than 23 × 10
-6/ DEG C, filler is 1% ~ 15% relative to the mass percent of bonding agent, and its effect is that the thermal coefficient of expansion reduced between bonding agent and sensor, target construction material does not mate, and avoids producing extra-stress in dramatic temperature change procedure.
High-speed data treating apparatus 5 receives rum point position and the impingement region size information of optical fiber impact microphone 1 transmission, the positional information of the affected area that pressure vessel sensor 2 sends, angular speed after the packing compression that Larger Dynamic Inertial Measurement Unit 3 sends and angular acceleration information, stress deformation information after the demodulation that stress strain gauge 4 sends, obtain target clash into after not status information in the same time, i.e. not rum point position in the same time and impingement region size information, the positional information of affected area, angular speed and angular acceleration information and stress deformation information, and above-mentioned information is sent to solid data 6 and HRT high-rate telemetry dispensing device 7 simultaneously.
The status information received from high-speed data treating apparatus 5 stores by solid data 6.Solid data 6 is traditional black boxes, can bear mechanical environment and the thermal environment of large magnitude.
The status information received from high-speed data treating apparatus 5 outwards sends by HRT high-rate telemetry dispensing device 7.The output transmission of HRT high-rate telemetry dispensing device 7 is wider than 50MHZ.
The optical signal transmission that light path device 101 of the present invention sends, in Fibre Optical Sensor grid 102, is detected by photodetection circuit 103 after the optical signal reflected through Fibre Optical Sensor grid 102 returns along former road; Larger Dynamic Inertial Measurement Unit is by the angular speed in three directions during the measurement target drone flight in real time of gyro 301 and accelerometer 302 and angular acceleration information; The structural deformation situation of stress strain gauge group 4 Real-Time Monitoring target position; Be distributed in the pressure vessel sensor group 2 Real-Time Monitoring force value separately of target various places inside; After target is clashed into or is tackled, the Fibre Optical Sensor grid 102 being positioned at rum point will damage, the optical signal that photodetection circuit 103 passes through to detect to return through Fibre Optical Sensor grid 102 is from the change had to nothing, determine the on off operating mode of corresponding sensor fibre, demodulate corresponding rum point position and impingement region size, and this information is sent to high-speed data treating apparatus 5; Along with carrying out further of clashing into, impacting body will be deep into target inside, and the pressure vessel of target inside will be hit, and pressure vessel sensor group 2 detects impaired region and this information is sent to high-speed data treating apparatus; After shock, along with shock degree is different, will there is deformation in various degree everywhere in target surface structure, and stress strain gauge group 4 detects stress deformation everywhere and this information is sent to high-speed data treating apparatus; Meanwhile, because clash into, the original flight path of target will be changed, and the various actions such as rolling occur, and this change by the change of examinations to this track, and is sent to high-speed data treating apparatus 7 by Larger Dynamic Inertial Measurement Unit 3; High-speed data treating apparatus 7 by obtain after above-mentioned information gathering, process target clash into after not state in the same time, and transmitted in parallel is to solid data 6 and HRT high-rate telemetry dispensing device 7.This information is finally sent to ground by HRT high-rate telemetry device 7, and solid data 6 stores for information backup, terminates rear data analysis for range test.
The above; be only the detailed description of the invention of the best of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.
Be not described in detail content in description of the present invention and belong to professional and technical personnel in the field's known technology.
Claims (7)
1. the check and evaluation system for the damage of target high-speed impact, it is characterized in that: comprise optical fiber impact microphone (1), pressure vessel sensor group (2), Larger Dynamic Inertial Measurement Unit (3), stress strain gauge group (4), high-speed data treating apparatus (5), solid data (6) and HRT high-rate telemetry dispensing device (7), wherein optical fiber impact microphone (1) comprises light path device (101), Fibre Optical Sensor grid (102) and photodetection circuit (103), Fibre Optical Sensor grid (102) is around covering and being fixed on target surface of shell, light path device (101), photodetection circuit (103), pressure vessel sensor group (2), Larger Dynamic Inertial Measurement Unit (3), stress strain gauge (4) and high-speed data treating apparatus (5) are arranged on target enclosure interior,
The optical signal transmission that light path device (101) in optical fiber impact microphone (1) sends is to Fibre Optical Sensor grid (102), and the optical signal reflected through Fibre Optical Sensor grid (102) is detected by photodetection circuit (103); Photodetection circuit (103) is by detecting the described optical signal reflected through Fibre Optical Sensor grid (102) from the change had to nothing, determine the on off operating mode of corresponding sensor fibre in Fibre Optical Sensor grid (102), demodulate the corresponding rum point position of Fibre Optical Sensor grid (102) and impingement region size, and described rum point position and impingement region size information are sent to high-speed data treating apparatus (5);
Pressure vessel sensor group (2) is made up of multiple pressure vessel sensor, detects the affected area of target enclosure interior and the positional information of affected area is sent to high-speed data treating apparatus (5);
The angular speed in X, Y, Z tri-directions and angular acceleration information during Larger Dynamic Inertial Measurement Unit (3) in real time measurement target drone flight, and described angular speed and angular acceleration information are carried out after packing is compressed, send to high-speed data treating apparatus (5); Wherein X-direction is target heading, and Y, Z-direction are the direction of any two vertical vector indications in the plane perpendicular to X-direction;
Stress strain gauge group (4) comprises sensor sensing head (401) and demodulates information unit (402), wherein sensor sensing head (401) is arranged in the diverse location of target inside, for detecting the stress deformation of target diverse location, and by the stress deformation information transmission of diverse location to demodulates information unit (402), demodulates information unit (402) exports to high-speed data treating apparatus (5) after carrying out demodulation to described stress deformation information;
Stress deformation information after the demodulation that angular speed after the packing compression that the positional information of the rum point position that high-speed data treating apparatus (5) reception optical fiber impact microphone (1) sends and the affected area that impingement region size information, pressure vessel sensor (2) send, Larger Dynamic Inertial Measurement Unit (3) send and angular acceleration information, stress strain gauge (4) send, obtain target clash into after not status information in the same time, and send to solid data (6) and HRT high-rate telemetry dispensing device (7);
The status information received from high-speed data treating apparatus (5) stores by solid data (6);
The status information received from high-speed data treating apparatus (5) outwards sends by HRT high-rate telemetry dispensing device (7).
2. a kind of check and evaluation system for the damage of target high-speed impact according to claim 1, it is characterized in that: described Larger Dynamic Inertial Measurement Unit (3) comprises the gyro group (301) of three orthogonal installations, the accelerometer group (302) of three orthogonal installations and Information Collecting & Processing circuit (303), wherein X during the measurement target drone flight in real time of the gyro group (301) of three orthogonal installations, Y, the angular velocity information in Z tri-directions, and send to Information Collecting & Processing circuit (303), X when the real-time measurement target drone of accelerometer group (302) of three orthogonal installations flies, Y, the angular acceleration information in Z tri-directions, and send to Information Collecting & Processing circuit (303), Information Collecting & Processing circuit (303) sends to high-speed data treating apparatus (5) after described angular speed and angular acceleration information being carried out packing compression.
3. a kind of check and evaluation system for the damage of target high-speed impact according to claim 1, is characterized in that: described Fibre Optical Sensor grid (102) can by longitude and latitude staggered or staggered helical mode around covering and being fixed on target surface of shell.
4. a kind of check and evaluation system for the damage of target high-speed impact according to claim 3, it is characterized in that: in described Fibre Optical Sensor grid (102), any two neighboring sensor optical fiber pitch can require adjustment according to impact damage position detection accuracy, and the less corresponding certainty of measurement of spacing is higher.
5. a kind of check and evaluation system for the damage of target high-speed impact according to claim 1, it is characterized in that: the gyro (301) of three orthogonal installations of described Larger Dynamic Inertial Measurement Unit (3) is silicon micro-gyroscope, the accelerometer (302) of three orthogonal installations is silicon micro accerometer.
6. a kind of check and evaluation system for the damage of target high-speed impact according to claim 1, it is characterized in that: described stress strain gauge group (4) is strain resistance-capacitance type or fiber Bragg grating type, and sensor sensing head (401) is separated with signal demodulation unit (402).
7. a kind of check and evaluation system for the damage of target high-speed impact according to claim 1, is characterized in that: the output transmission of described HRT high-rate telemetry dispensing device (7) is wider than 50MHZ.
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| CN106839967A (en) * | 2017-04-10 | 2017-06-13 | 中国有色金属工业昆明勘察设计研究院 | Spherical ess-strain monitoring device that is a kind of multi-direction and can combining |
| EP3743682A4 (en) | 2018-01-24 | 2021-10-13 | Humanetics Innovative Solutions, Inc. | Fiber optic system for detecting forces on and measuring deformation of an anthropomorphic test device |
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| CN109523833A (en) * | 2018-11-05 | 2019-03-26 | 中设设计集团股份有限公司 | A kind of evidence-obtaining system and evidence collecting method of inland navigation craft and small bridge collision |
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| CN111121544A (en) * | 2019-12-10 | 2020-05-08 | 北京航天飞腾装备技术有限责任公司 | Accurate guidance bomb target bomb for rapid evaluation of damage efficiency |
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