CN105659861B - A kind of sound and flash ranging method with temperature-compensating - Google Patents
A kind of sound and flash ranging method with temperature-compensatingInfo
- Publication number
- CN105659861B CN105659861B CN201010048422.8A CN201010048422A CN105659861B CN 105659861 B CN105659861 B CN 105659861B CN 201010048422 A CN201010048422 A CN 201010048422A CN 105659861 B CN105659861 B CN 105659861B
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- sound
- signal
- timer
- temperature
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- 238000001514 detection method Methods 0.000 claims abstract description 20
- 230000003287 optical Effects 0.000 abstract description 8
- 238000005259 measurement Methods 0.000 abstract description 3
- 240000007594 Oryza sativa Species 0.000 abstract description 2
- 235000007164 Oryza sativa Nutrition 0.000 abstract description 2
- 235000009566 rice Nutrition 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000001902 propagating Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
Abstract
The present invention is a kind of sound and flash ranging method with temperature-compensating, belongs to fuse height of burst technical field of measurement and test. fuse is made the signal that the used time sends sound and light simultaneously, first optical detection module in sound and flash ranging system receives optical signal, optical detection module sends to the timer in signal processing module by receiving optical signal, as the starting point of signal processing module Timer timing, timer in signal processing module starts timing, when acoustic detection module receives acoustical signal, acoustical signal is sent to the timer in signal processing module by acoustic detection module, as the stop signal of timer, the timer in signal processing module is made to stop timing, thus obtain the propagation time of sound from the application point of fuse to sound and flash ranging system, because the spread speed of light is much larger than the velocity of sound, light can be ignored from the application point of fuse to the propagation time of test macro, because the distance of test only has hundreds of rice, therefore measuring accuracy is not almost affected.<pb pnum="1" />
Description
Technical field
The present invention relates to a kind of sound and flash ranging method with temperature-compensating, belong to fuse height of burst technical field of measurement and test.
Background technology
Influence fuse according to target existence, the Distance geometry direction of characteristic or environmental characteristics sensation target acts onFuse, is also called non-contact fuze. The height of burst is as one of most important technical indicator of influence fuse, to fuseAction effect have decisive meaning, the height of burst of Accurate Determining influence fuse is significant.
Generally speaking, measuring instrument and equipment highly used should be altitude meter, rangefinder and so on. Survey high instrumentDevice is also a lot, such as the altitude meter that airborne vehicle adopts, although principle is different, is all by airborne vehicle selfCarry, the mensuration of fuze bursting point height certainly can not be applied to; Other also has radio altimeter, thunderReach altitude meter, laser ceilometer, cable altitude meter, laser range finder etc., its principle is all transmitting radioRipple or light wave etc. arrive measured object, receive its back wave, from its time difference calculating measured object height. This class instrumentDevice is surveyed height all needs observed matter to fixing, and has pip, and pellet injection is to aerial quick-fried sound, is oneIndividual moment, there is no fixation reflex point, add that these product costs are high and measure error is very large, therefore all inapplicableIn the measurement of fuze bursting point height.
Summary of the invention
The object of this invention is to provide a kind of sound and flash ranging method with temperature-compensating, can by recording orderThe sound wave that mark sends arrives the time of test point, and is measured the atmosphere in this time by temperature compensation meansTemperature, calculates the velocity of sound after temperature compensated, thus obtains the distance of target from test point.
A kind of this sound and flash ranging method with temperature-compensating, comprises the following steps:
The first step: acousto-optic testing arrangement is arranged in the test point of choosing;
Second step: target gives off light wave and sound wave at application point simultaneously;
3rd step: when adopting light detection device to detect target light wave, exports an i.e. timing of the signal of telecommunication and startsSignal is to time set;
4th step: time set receives the signal of telecommunication of light detection device input, starts timing immediately;
5th step: temperature measuring equipment is measured the temperature T of the atmosphere of measure field, is gone out by formulae discoveryThe velocity of sound:
c＝331.6+0.6×T
Wherein, the unit of velocity of sound c is m/s, and the unit of temperature T is DEG C;
6th step: when adopting acoustic detection device to detect target light wave, export a signal of telecommunication i.e. timing and stopSignal is to time set;
7th step: time set receives the signal of telecommunication of acoustic detection device input, terminates timing immediately, and givesGo out write down time value t;
8th step: the t in the c in the 7th step and the 8th step is put into formula
l＝c·t
Calculate the distance l of target to test point.
Beneficial effect of the present invention:
Fuse is made the signal that the used time sends sound and light simultaneously, and when propagating in atmosphere due to sound, the velocity of sound can be subject toThe impact of temperature and then the precision of final test can be affected, therefore will carry out temperature-compensating to sonic propagation; SoundFirst optical detection module in ligh-ranging system receives optical signal, and optical detection module will receive optical signal and send outGive the timer in signal processing module, as the starting point of signal processing module Timer timing, signalTimer in processing module starts timing, and when acoustic detection module receives acoustical signal, sound is believed by acoustic detection moduleNumber send to the timer in signal processing module, as the stop signal of timer, make signal processing moduleIn timer stop timing, thus obtain the propagation time of sound from the application point of fuse to sound and flash ranging system,Because the spread speed of light is much larger than the velocity of sound, light can from the application point of fuse to the propagation time of test macroIgnore, because the distance of test only has hundreds of rice, therefore measuring accuracy is not almost affected.
Accompanying drawing explanation
Fig. 1 is a kind of sound and flash ranging method flow diagram with temperature-compensating of the present invention;
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
The first step: before test, testing arrangement is arranged in the test point of choosing;
Second step: target gives off light wave and sound wave at application point simultaneously;
3rd step: when adopting light detection device to detect target light wave, (timing starts to export a signal of telecommunicationSignal) to time set;
4th step: time set receives the signal of telecommunication of light detection device input, starts timing immediately;
5th step: when adopting acoustic detection device to detect target light wave, (timing stops to export a signal of telecommunicationSignal) to time set;
6th step: temperature measuring equipment is measured the temperature T=25.5 DEG C of the atmosphere of measure field, by public affairsFormula calculates the velocity of sound:
c＝331.6+0.6×T＝346.9m/s
7th step: time set receives the signal of telecommunication of acoustic detection device input, terminates timing immediately, openGo out write down time value t=405.94ms;
8th step: calculating target to the distance of test point is
l＝c·t＝346.9m/s×405.94ms＝140.82m。
Claims (1)
1. the sound and flash ranging method with temperature-compensating, is characterized in that, comprise the following steps:
The first step: acousto-optic testing arrangement is arranged in the test point of choosing;
Second step: target gives off light wave and sound wave at application point simultaneously;
3rd step: when adopting the light detection device of acousto-optic testing arrangement to detect target light wave, export an electricityThe i.e. timing enabling signal of signal is to time set;
4th step: time set receives the signal of telecommunication of light detection device input, starts timing immediately;
5th step: temperature measuring equipment is measured the temperature T of the atmosphere of measure field, is gone out by formulae discoveryThe velocity of sound:
c＝331.6+0.6×T
Wherein, the unit of velocity of sound c is m/s, and the unit of temperature T is DEG C;
6th step: when adopting the acoustic detection device of acousto-optic testing arrangement to detect target light wave, export an electricityThe i.e. timing stop signal of signal is to time set;
7th step: time set receives the signal of telecommunication of acoustic detection device input, terminates timing immediately, and givesGo out write down time value t;
8th step: the t in the c in the 7th step and the 8th step is put into formula
l＝c.t
Calculate the distance l of target to test point.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105659861B true CN105659861B (en) | 2013-11-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115079094B (en) * | 2022-06-15 | 2024-05-31 | 西安工业大学 | Device and method for testing shot point position of integrated acousto-optic composite detection |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115079094B (en) * | 2022-06-15 | 2024-05-31 | 西安工业大学 | Device and method for testing shot point position of integrated acousto-optic composite detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR03 | Grant of secret patent right | ||
| DC01 | Secret patent status has been lifted | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20170430 |