CN103499704A - Method for measuring speed of pills - Google Patents
Method for measuring speed of pills Download PDFInfo
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- CN103499704A CN103499704A CN201310465532.8A CN201310465532A CN103499704A CN 103499704 A CN103499704 A CN 103499704A CN 201310465532 A CN201310465532 A CN 201310465532A CN 103499704 A CN103499704 A CN 103499704A
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- ultrasonic
- pills
- bullet
- ultrasonic pulses
- speed
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention relates to a method for measuring the speed of pills. The method is characterized by comprising the steps of installing an ultrasonic generator on a gun barrel or at other place, and installing an ultrasonic receiver in a fuze; setting the sound velocity to be C and the initial velocity of the pills to be u; when u is more than C, sequentially transmitting two ultrasonic pulses towards the flight direction of the pills before the pills are launched; when u is less than C, sequentially transmitting two ultrasonic pulses towards the flight direction of the pills after the pills are launched, wherein the time interval is delta T1; when the pills fly over the two ultrasonic pulses, or the two ultrasonic pulses surpass the pills, sensing by the ultrasonic receiver, wherein the time difference is delta T2. Due to the fact that u * delta T2=C * delta T1, the method for measuring the speed of the pills is simple, low in cost and high in accuracy, and has better popularization and application values in the fuze, especially a time fuze.
Description
Technical field: the present invention relates to a kind of bullet speed-measuring method, especially velocity information can be stored in to the bullet speed-measuring method of Projectile Fuze control system inside.
Background technology: in time faze, due to the muzzle velocity deviation, can cause operating distance that relatively large deviation is arranged, thereby affect the fighting effect of bullet warhead.Known muzzle velocity assay method roughly has three kinds: the one, and sky tests the speed, and it can not be by the initial velocity information storage in fuze control system, can not be for correction time fuze function range deviation; The 2nd, the coil electromagnetism induction is tested the speed, and it need to set up inductive coil at gun tube mouth and the bullet outside, and impact plays shape and gun tube profile; The 3rd, the acceleration transducer integration tests the speed, and its disadvantage is that the precision tested the speed is not high, and in time faze, using value is little at present.
Summary of the invention: the object of the present invention is to provide a kind of can by muzzle velocity determination be stored in for information about fuze control system inside, need not set up coil at gun tube and fuse outside again, can also obtain a kind of bullet speed-measuring method of high precision result.
The objective of the invention is to realize by following technical solution: a kind of bullet speed-measuring method, it is characterized in that: at gun tube or other local ultrasonic generators of installing, one ultrasonic receiver is installed in fuse, if velocity of sound is C, the initial velocity of bullet is u: when u>c, before pellet injection, first by ultrasonic generator, to the projectile flight direction, successively send two ultrasonic pulses, its time is spaced apart Δ T
1, after pellet injection, priority is leapt to these two ultrasonic pulses to bullet and, by the ultrasonic receiver perception, its detecting period is poor is Δ T
2, at this moment, the flying distance of bullet between two ultrasonic pulses is u Δ T
2, and the spacing between two ultrasonic pulses is C Δ T
1, due to u Δ T
2=C Δ T
1therefore,
when u<C, after pellet injection, more successively launch two ultrasonic pulses by ultrasonic generator to the projectile flight direction, its time interval is also Δ T
1, at this moment, priority is surmounted to aloft bullet to two ultrasound waves and, by the ultrasonic receiver perception, its detecting period is poor is also Δ T
2, in like manner, due to u Δ T
2=C Δ T
1therefore,
Measure the initial velocity of bullet with the present invention, method is simple, with low cost, and rate accuracy is high, in fuse especially time faze, application value is preferably arranged.
Embodiment: a kind of bullet speed-measuring method, it is characterized in that: at gun tube or other local ultrasonic generators of installing, one ultrasonic receiver is installed in fuse, if velocity of sound is C, the initial velocity of bullet is u: when u>c, before pellet injection, first by ultrasonic generator, to the projectile flight direction, successively send two ultrasonic pulses, its time is spaced apart Δ T
1, after pellet injection, priority is leapt to these two ultrasonic pulses to bullet and, by the ultrasonic receiver perception, its detecting period is poor is Δ T
2, at this moment, the flying distance of bullet between two ultrasonic pulses is u Δ T
2, and the spacing between two ultrasonic pulses is C Δ T
1, due to u Δ T
2=C Δ T
1therefore,
when u<C, after pellet injection, more successively launch two ultrasonic pulses by ultrasonic generator to the projectile flight direction, its time interval is also Δ T
1, at this moment, priority is surmounted to aloft bullet to two ultrasound waves and, by the ultrasonic receiver perception, its detecting period is poor is also Δ T
2, in like manner, due to u Δ T
2=C Δ T
1therefore,
It is worthy of note: above-mentioned velocity of sound C is the speed that sound is propagated in air, is a known constant; Mistiming Δ T
1need to preset and be stored in fuze control system inside; Mistiming Δ T
2by fuze control system, measured;
net result also by fuze control system calculate, store, application.
Claims (1)
1. a bullet speed-measuring method is characterized in that: at gun tube or other local ultrasonic generators of installing, a ultrasonic receiver is installed in fuse, establishing velocity of sound is C, and the initial velocity of bullet is u:
Anti-as u>c, before pellet injection, first by ultrasonic generator, to the projectile flight direction, successively send two ultrasonic pulses, its time is spaced apart Δ T
1, after pellet injection, priority is leapt to these two ultrasonic pulses to bullet and, by the ultrasonic receiver perception, its detecting period is poor is Δ T
2, at this moment, the flying distance of bullet between two ultrasonic pulses is u Δ T
2, and the spacing between two ultrasonic pulses is C Δ T
1, due to u Δ T
2=C Δ T
1therefore,
When u<C, after pellet injection, more successively launch two ultrasonic pulses by ultrasonic generator to the projectile flight direction, its time interval is also Δ T
1, at this moment, priority is surmounted to aloft bullet to two ultrasound waves and, by the ultrasonic receiver perception, its detecting period is poor is also Δ T
2, in like manner, due to u Δ T
2=C Δ T
1therefore,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310465532.8A CN103499704B (en) | 2013-09-27 | 2013-09-27 | A kind of bullet speed-measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310465532.8A CN103499704B (en) | 2013-09-27 | 2013-09-27 | A kind of bullet speed-measuring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103499704A true CN103499704A (en) | 2014-01-08 |
| CN103499704B CN103499704B (en) | 2015-09-23 |
Family
ID=49864929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310465532.8A Expired - Fee Related CN103499704B (en) | 2013-09-27 | 2013-09-27 | A kind of bullet speed-measuring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103499704B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856419A (en) * | 2019-03-05 | 2019-06-07 | 中北大学 | A kind of portable Projectile velocity measurements device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85107388A (en) * | 1985-09-30 | 1987-04-15 | 中国科学院声学研究所 | The acoustic method of bullet trajectory |
| CN102680729A (en) * | 2012-05-18 | 2012-09-19 | 南京理工大学 | Speed measurement device for light curtain targets |
| CN202975037U (en) * | 2012-09-20 | 2013-06-05 | 西北工业大学 | Device measuring speed and accelerated speed of bullet |
| CN203025199U (en) * | 2012-12-20 | 2013-06-26 | 核工业西南物理研究院 | Projectile speed measuring device |
-
2013
- 2013-09-27 CN CN201310465532.8A patent/CN103499704B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85107388A (en) * | 1985-09-30 | 1987-04-15 | 中国科学院声学研究所 | The acoustic method of bullet trajectory |
| CN102680729A (en) * | 2012-05-18 | 2012-09-19 | 南京理工大学 | Speed measurement device for light curtain targets |
| CN202975037U (en) * | 2012-09-20 | 2013-06-05 | 西北工业大学 | Device measuring speed and accelerated speed of bullet |
| CN203025199U (en) * | 2012-12-20 | 2013-06-26 | 核工业西南物理研究院 | Projectile speed measuring device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856419A (en) * | 2019-03-05 | 2019-06-07 | 中北大学 | A kind of portable Projectile velocity measurements device |
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|---|---|
| CN103499704B (en) | 2015-09-23 |
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