CN102539819A - System for testing speeds and appearances of high-speed moving objects - Google Patents
System for testing speeds and appearances of high-speed moving objects Download PDFInfo
- Publication number
- CN102539819A CN102539819A CN2012100139477A CN201210013947A CN102539819A CN 102539819 A CN102539819 A CN 102539819A CN 2012100139477 A CN2012100139477 A CN 2012100139477A CN 201210013947 A CN201210013947 A CN 201210013947A CN 102539819 A CN102539819 A CN 102539819A
- Authority
- CN
- China
- Prior art keywords
- moving object
- speed moving
- speed
- pattern
- target
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a system for testing the speeds and appearances of high-speed moving objects. The system is composed of three parts, namely a high-speed moving object speed test device, a high-speed moving object appearance test device and a data processing system, wherein the high-speed moving object speed test device comprises a starting net target, a stopping net target and a hour meter; the high-speed moving object appearance test comprises a laser, a Fresnel lens, a photoelectric detector and an oscilloscope; and the data processing system consists of a computer and data processing software, the data processing software computes the speeds and appearances of high-speed moving objects and obtained results are displayed in a display of the computer. The system disclosed by the invention is low in cost and high in reliability, and can be used for testing the speeds and appearances of the high-speed moving objects in highly technical fields, military fields and general technical fields.
Description
Technical field
The present invention relates to a kind of high-speed moving object speed and pattern test macro, be mainly used in the speed and the pattern test of high-speed moving object.
Background technology
The test of variable accelerated motion object speed and how to improve its measuring accuracy; It is the problem that the tester makes great efforts to explore always; Particularly fast to those movement velocitys, the working time is lacked the tested object of (only there are several seconds the working time), and this problem is particularly outstanding.In recent years, the high-speed moving object measuring technology has received great attention, and the aloft attribute of autotelic acquisition high-speed moving object finally is translated into material object and puts in the practical application, and is significant.Wherein, With the speed of high-speed moving object and pattern as research object; Some new and high technologies are applied to high-speed moving object speed and topography measurement, develop new high-speed moving object speed measurement method, improving the degree of accuracy that tests the speed is a job that studies for a long period of time; Being a basic work that improves high-speed moving object speed and pattern technical feature, also is simultaneously an important step that influences the development of high-speed moving object airmanship.The technological difficulties of high-speed moving object speed and pattern test are the method for testing of high-speed moving object pattern and attitude.For example explosion forming bullet or energy-gathering jetting receive the influence of disturbing factors such as self-characteristic and air resistance in the process of high-speed motion; Velocity variations is fast and with the generation of deformation, so the measurement to speed and pattern is one of the theoretical research of bullet emission coefficient and basic test content of Performance Testing in the bullet motion process.At present; To high-speed moving object speed and topography measurement method commonly used is the X ray Photographic technique; Promptly then its speed and pattern are analyzed through the multiple image that obtains high-speed moving object; But too high use cost and safety issue make this method in application, receive a lot of restrictions, are badly in need of high-speed moving object speed, the pattern method of testing of developing low-cost and safety.
Native system is put velocity test with the pattern proving installation and is combined; Not only can effectively test high-speed moving object speed and pattern; And this system has simple in structure; Characteristics such as with low cost, and in having destructive experimentation, need not do special protection to it.
Summary of the invention
The present invention be directed to high-speed moving object speed at present commonly used exists the experimentation cost height with the pattern method of testing, is difficult for shortcoming such as image data and a kind of high-speed moving object speed and the pattern test macro that propose.
High-speed moving object speed according to the invention and pattern test macro mainly are made up of velocity test device, pattern proving installation and data handling system.Wherein the velocity test device mainly is used for testing the average velocity through the object in its interval; The pattern proving installation mainly is used for testing high-speed moving object diameter situation over time when the parallel laser light curtain; Data handling system is carried out calculation process to result that said apparatus is surveyed, and draws the speed and the pattern of tested high-speed moving object.
The velocity test device is a kind of interval speed measuring device, mainly by start the net target, stop to net target, calculagraph constitutes.If start the net target, the range that stops to net target is S, and described two lead-in wires are connected on the input circuit of calculagraph, when high-speed moving object when starting the net target, cut off the galvanized wire mesh that starts the net target, see an electric signal off, make the calculagraph opening entry time; When stopping to net target, cut off the galvanized wire mesh that stops to net target, see an electric signal once more off, make calculagraph stop writing time.At this moment the time of calculagraph record for the high speed object through between two targets apart from the mistiming t of S.But start the net target and stop to net velocity measurement targets such as target laser target, tinfoil paper target.
Start the net target and stop to net target and form by two single face zigzag thin plate and galvanized wires that are fixed on the wooden frame.Two single face zigzag thin plate sawtooth are respectively fixed to the relative both sides of wooden frame outwardly, unroll between the zigzag thin plate with galvanized wire then, around to both sides the time, just are suspended on the sawtooth, form a metal wire side.
The spacing of two single face zigzag thin plate sawtooth is less than 1/4 of high-speed moving object cross sectional dimensions, can cut off galvanized wire mesh when guaranteeing the object head through the net target.
The pattern proving installation is made up of a word red light semiconductor laser, Fresnel Lenses, photodetector and oscillograph.The fan-shaped laser of being sent out by a word red light semiconductor laser forms the parallel laser light curtain through a pair of Fresnel Lenses, and the parallel laser light curtain is positioned at and starts the net target and stop to net the target middle.High-speed moving object is not a uniform motion in the process of flight; If the parallel laser light curtain is placed the middle that starts the net target and stop to net target; When high-speed moving object process parallel laser light curtain position; Its speed is near the average velocity of high-speed moving object, therefore, can be with high-speed moving object speed during through the parallel laser light curtain replace the average velocity of high-speed moving object.
The fan-shaped laser that one word red light semiconductor laser sends forms the directional light curtain through Fresnel Lenses, and directional light converges on the photodetector through another Fresnel Lenses, at last through the voltage signal output of oscillograph with photodetector.When high-speed moving object passes through the directional light curtain, will block a part of directional light.High-speed moving object diameter in motion process changes; The corresponding difference of width of the directional light that blocks during through the parallel laser light curtain; After converging to photodetector, the energy that photodetector is gathered is also different, and it changes into electric signal and on oscillograph, was shown as the target waveform.
Data handling system is made up of data processing software and computing machine.Data processing software is installed on computers, and programming realizes based on Matlab.High-speed moving object by the velocity test device obtains is netted target and is stopped to net the input of the time t of target interval S as data processing software through starting, and can calculate the average velocity of high speed object of which movement according to formula 1.
The target waveform excessively that the electric signal of exporting according to photodetector in the pattern proving installation demonstrates through optimizing, makes voltage variety that photodetector is surveyed be directly proportional with the diameter of testee.With the output of photodetector input as data processing software, the diameter of each xsect in the time of then can obtaining high-speed moving object through the directional light curtain.With the reconstruct in Matlab of each diameter, then obtain the three-dimensional appearance of high-speed moving object when average velocity moves.
The average velocity of tested high-speed moving object and three-dimensional appearance show in the display of computing machine.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1: high-speed moving object speed and pattern proving installation schematic diagram.
Fig. 2: high-speed moving object velocity test schematic diagram of device.
Fig. 3: single net target structure synoptic diagram.
Fig. 4: high-speed moving object pattern proving installation schematic diagram.
Among the figure: high-speed moving object (1), velocity test device (2), pattern proving installation (3), object orbit (4); Start net target (5), stop to net target (6), calculagraph (7), target frame (8); Galvanized wire mesh (9), signal wire (10), target stand (11), laser instrument (12); Fresnel Lenses (13), photodetector (14), oscillograph (15).
Embodiment
As shown in fig. 1: high-speed moving object speed and pattern test macro, mainly form by velocity test device (2), pattern proving installation (3) and data handling system.Wherein velocity test device (2) mainly is used for testing the average velocity of object in it is interval that is passed through; Pattern proving installation (3) mainly is used for test object diameter situation over time when the parallel laser light curtain; Data handling system is analyzed computing with result that said apparatus is surveyed, thereby draws the speed and the pattern of high-speed moving object.
As shown in Figure 2: as when high-speed moving object (1) is netted target (5) through starting, to cut off the galvanized wire mesh (9) that starts net target (5), see an electric signal off, start calculagraph (7) the opening entry time; When stopping to net target (6), cut off and stop to net the galvanized wire mesh (9) of target (6), see an electric signal again off, make calculagraph (7) stop writing time.At this moment time of showing of calculagraph (7) is the mistiming t of high-speed moving object (1) during through two targets, and to start the net target be s with the range that stops to net target.
As shown in Figure 3: single net target structure synoptic diagram, it is made up of target frame (8), target holder (11), galvanized wire mesh (9) and signal wire (10).Because high-speed moving object (1) can produce certain shock wave when flight,, be fixed on the target holder (11) so will start net target (5) and stop to net target (6) for fear of the measuring accuracy of target surface effect of jitter high-speed moving object (1) speed.During test; Lead-in wire on the galvanized wire mesh (9) is connected on the calculagraph (7); The time interval t of calculagraph (7) record two targets output signal; And according to start net target (5) and stop to net between the target (6) apart from s, the data processing software with t and s input data processing system calculates the average velocity that high-speed moving object moves by formula between two targets.
As shown in Figure 4: the fan-shaped laser that a word red light semiconductor laser (12) is sent out has formed the parallel laser light curtain through Fresnel Lenses (13).The other end at the light curtain uses a same Fresnel Lenses (13) that the light curtain is converged on the photodetector (15).When high-speed moving object (1) passes through, will block a part of directional light.Because high-speed moving object (1) diameter variation, the width of the directional light that blocks is different, and the energy that converges to photodetector (14) is also different.The target waveform excessively that the electric signal of exporting according to photodetector (15) demonstrates through optimizing, makes voltage variety that photodetector is surveyed be directly proportional with the diameter of testee.With the output of photodetector (15) input as data processing software, the diameter of each xsect in the time of then can obtaining high-speed moving object through the directional light curtain.With the reconstruct in Matlab of each diameter, then obtain the three-dimensional appearance of high-speed moving object when average velocity moves.
The average velocity of last tested high-speed moving object and three-dimensional appearance are presented on the display of computing machine.
Claims (5)
1. high-speed moving object speed and pattern test macro; It is characterized in that; This system is made up of velocity test device, pattern proving installation and data handling system; With the time signal of velocity test device acquisition and the voltage change signal input data processing system of pattern proving installation output, after data handling system calculating, reconstruct, obtain and show the average velocity and the three-dimensional appearance of high-speed moving object.
2. high-speed moving object speed according to claim 1 and pattern test macro; It is characterized in that; The velocity test device is mainly by starting the net target, stopping to net target and calculagraph constitutes, and wherein starts the net target and stops to net target and be fixed on the support according to certain spacing.
3. high-speed moving object speed according to claim 2 and pattern test macro; It is characterized in that; Said startup net target with stop to net target and form by two single face zigzag thin plate and galvanized wires that are fixed on the wooden frame, the spacing of zigzag thin plate is less than 1/4 of the survey article diameters.
4. high-speed moving object speed according to claim 1 and pattern test macro; It is characterized in that; The pattern proving installation is made up of laser instrument, Fresnel Lenses, photodetector and oscillograph, and the parallel laser light curtain that is formed by laser instrument and Fresnel Lenses is positioned at startup net target and stops to net the target middle.
5. high-speed moving object speed according to claim 1 and pattern test macro; It is characterized in that; Data handling system is made up of computing machine and data processing software; The input data processing system as a result that velocity test device and pattern proving installation are measured; Data processing software calculates and reconstruct the voltage variety that the measured time signal of velocity test device and pattern proving installation collect, and obtains the average velocity and the three-dimensional appearance of high-speed moving object, and on the display of computing machine, shows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100139477A CN102539819A (en) | 2012-01-17 | 2012-01-17 | System for testing speeds and appearances of high-speed moving objects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100139477A CN102539819A (en) | 2012-01-17 | 2012-01-17 | System for testing speeds and appearances of high-speed moving objects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102539819A true CN102539819A (en) | 2012-07-04 |
Family
ID=46347210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100139477A Pending CN102539819A (en) | 2012-01-17 | 2012-01-17 | System for testing speeds and appearances of high-speed moving objects |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102539819A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675909A (en) * | 2015-12-31 | 2016-06-15 | 西安工业大学 | Burst firing bullet signal identification method for indoor target channel light screen velocity measurement apparatus |
| CN106018869A (en) * | 2016-06-30 | 2016-10-12 | 南京理工大学 | Initial velocity measuring device for X-ray light screen |
| CN110286625A (en) * | 2019-07-11 | 2019-09-27 | 日立楼宇技术（广州）有限公司 | A kind of raising Object Management System and management method |
| CN114111468A (en) * | 2021-11-29 | 2022-03-01 | 湖北航天化学技术研究所 | System and method for measuring jet characteristic parameters of shaped charge |
-
2012
- 2012-01-17 CN CN2012100139477A patent/CN102539819A/en active Pending
Non-Patent Citations (5)
| Title |
|---|
| LI YANGJUN ET AL.: "Testing Technology for Explosively Formed Projectile Based on Parallel Screens", 《INTERNATIONAL CORIFERENCE ON ELECTRONICS AND OPTOELECTRONICS》 * |
| 刘新刚: "激光平行光幕光能分布均匀性测量研究", 《光电技术应用》 * |
| 刘福才等: "基于网靶和高速数据采集方法的弹丸速度测量", 《兵工自动化》 * |
| 王高等: "基于激光靶的火炮炮口速度测速技术与试验", 《火力与指挥控制》 * |
| 王高等: "电阻网靶破片群速度测量方法", 《探测与控制学报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675909A (en) * | 2015-12-31 | 2016-06-15 | 西安工业大学 | Burst firing bullet signal identification method for indoor target channel light screen velocity measurement apparatus |
| CN105675909B (en) * | 2015-12-31 | 2018-07-27 | 西安工业大学 | A kind of indoor range light curtain speed measuring device burst-firing bullet signal recognition method |
| CN106018869A (en) * | 2016-06-30 | 2016-10-12 | 南京理工大学 | Initial velocity measuring device for X-ray light screen |
| CN106018869B (en) * | 2016-06-30 | 2019-02-05 | 南京理工大学 | A kind of X-ray light curtain initial speed measuring device |
| CN110286625A (en) * | 2019-07-11 | 2019-09-27 | 日立楼宇技术（广州）有限公司 | A kind of raising Object Management System and management method |
| CN114111468A (en) * | 2021-11-29 | 2022-03-01 | 湖北航天化学技术研究所 | System and method for measuring jet characteristic parameters of shaped charge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102539819A (en) | System for testing speeds and appearances of high-speed moving objects | |
| CN102749470A (en) | Fragment velocity measuring device | |
| CN104792262A (en) | Photosensitive plane target | |
| CN101603817B (en) | Detection equipment and detection method for thickness of glass | |
| CN103471532B (en) | Measure system and the correlation method of aircraft surface percent ripple | |
| CN103900639A (en) | High-speed multi-scale vibration and deformation detecting device and method | |
| CN106383367A (en) | Absolute gravity measurement method and apparatus thereof | |
| CN202649230U (en) | Fragment speed measuring apparatus | |
| CN100458372C (en) | Particle picture velocity measuring method for accurately measuring construction and city space | |
| CN105203797B (en) | A kind of micro-and nano-particles group velocity-measuring system | |
| CN109061723B (en) | High-precision positioning method and system for micro seismic source in tunnel rock burst inoculation process | |
| CN108900834B (en) | A kind of high speed camera time for exposure and lose frame measuring device and method | |
| CN106597003A (en) | Method for measuring ultrasonic bullet flight track via shock waves | |
| CN111854917B (en) | Non-contact torsional vibration measurement method based on machine vision | |
| Li et al. | A novel ultrasonic array signal processing scheme for wind measurement | |
| CN105043438B (en) | Space object multi-Dimensional parameters measurement apparatus | |
| CN204043637U (en) | Micro-angle measurement unit | |
| CN104321633B (en) | For measuring the system of interval region in substrate | |
| TWI470229B (en) | Acceleration sensor with gravity measuring function | |
| CN109060241A (en) | A kind of sensor equivalent inertia force modification method for impulsive force calibration | |
| CN104457958B (en) | Two ends fixed supported slab vibration detection device and method based on displacement surveying meter of optic fibre | |
| CN101799548B (en) | All-fiber velocity measurement system and phase velocity measurement method | |
| CN108802170A (en) | A kind of electromechanical detection method of whole audience formula defect using electronic speckle technology | |
| CN209215414U (en) | A kind of photoelectricity composite test sensor | |
| US10509138B2 (en) | System and method for discriminating between origins of vibrations in an object and determination of contact between blunt bodies traveling in a medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |