CN105659875B - A kind of Microsecond grade multi-channel synchronous burst time high-precision measuring method - Google Patents
A kind of Microsecond grade multi-channel synchronous burst time high-precision measuring methodInfo
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- CN105659875B CN105659875B CN201010050859.5A CN201010050859A CN105659875B CN 105659875 B CN105659875 B CN 105659875B CN 201010050859 A CN201010050859 A CN 201010050859A CN 105659875 B CN105659875 B CN 105659875B
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- 230000001360 synchronised Effects 0.000 title claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 238000005474 detonation Methods 0.000 claims abstract description 14
- 238000007493 shaping process Methods 0.000 claims abstract description 9
- 230000000977 initiatory Effects 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims abstract description 5
- 239000000523 sample Substances 0.000 abstract description 28
- 239000002360 explosive Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 4
- 238000004880 explosion Methods 0.000 description 3
- 210000001367 Arteries Anatomy 0.000 description 2
- 210000001503 Joints Anatomy 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910004682 ON-OFF Inorganic materials 0.000 description 1
- XOFYZVNMUHMLCC-ZPOLXVRWSA-N Prednisone Chemical compound O=C1C=C[C@]2(C)[C@H]3C(=O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 XOFYZVNMUHMLCC-ZPOLXVRWSA-N 0.000 description 1
- 230000001174 ascending Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000000630 rising Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000001932 seasonal Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000700 tracer Substances 0.000 description 1
Abstract
A kind of Microsecond grade multi-channel synchronous burst time high-precision measuring method, comprise the electrical resistivity survey utmost point, mininoise cable, voltage conversion circuit, pulse former and data collecting system, wherein, method of attachment is: each passage that one end of the electrical resistivity survey utmost point is fixed on the required measurement of test, the other end is connected with mininoise cable, mininoise cable is connected with the signal input part of pulse former, and the signal output part of pulse former is connected with data collecting system; During test, voltage conversion circuit paired pulses wave-shaping circuit is powered, ignition and detonation is carried out in test, electric probe is natural conducting under the effect of detonation, the switch state transitions of electric probe can be become to have the positive pressure pulse signal of certain sequential by pulse former, and this positive pressure pulse signal is input to data collecting system, the simultaneous initiation time that the time of reading positive pressure pulse signal just can draw each passage.<pb pnum="1" />
Description
Technical field
The present invention relates to a kind of high-precision Method Of Time Measurement, specifically, relate to a kind of Microsecond gradeThe high-precision measuring method of multi-channel synchronous burst time, belongs to missilery field.
Background technology
In the ground experiment of warhead, the measurement that need to explode and impact, correctly analyzes detonation waveTime interval signal with shock wave, differentiates the Usefulness Pair of tracer signal rapidly in verifying and optimizing and fightThe design in portion plays an important role.
Now had multiple models for the measuring system of measuring intervals of TIME, intelligent detonation velocity meter is conventionalTime measurement system, can measure for the explosion velocity of explosive, the tachometric survey of high-speed moving object, explodedThe time measurement of journey. The special passage of intelligence detonation velocity meter: on-off and disconnected-Tong two kind modes 1) can be realized; 2)Realize proceeding measurement, i.e. the process of each time measurement is to measure taking previous as basis, Bu NengtongPacing amount, such measuring method cannot meet wanting that burst time that multiple blast Channel Synchronous detonate measuresAsk. The measurement of multiple blast Channel Synchronous burst times is the new measurement requirement that warhead test proposes, and hasThree special passages: 1) high accuracy, time measurement is accurate to musec order; 2) multi-channel synchronous, canMeasure the time series of left and right, Er Shi tetra-tunnel simultaneously; 3) operability, simple to operation in the wild. At present notRetrieve the measuring method that meets above-mentioned new measurement and require.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiencies in the prior art, and a kind of Microsecond grade multichannel is providedThe high-precision measuring method of simultaneous initiation time, time series that can either synchro measure multichannel time break,Certainty of measurement can be made again to reach musec order.
Technical solution of the present invention is: a kind of Microsecond grade multi-channel synchronous burst time high-acruracy survey sideMethod, the equipment that method is relied on comprises the electrical resistivity survey utmost point, mininoise cable, voltage conversion circuit and pulse former;Each passage arranges separately a set of equipment, and all passages share a data collecting system; Method step is as follows:
The first step, before test, is fixed on electric probe on each passage of the required measurement of test, and locates alwaysIn off-state, electric probe is connected pulse with mininoise cable with the signal input part of pulse formerThe signal output part of wave-shaping circuit is connected with data collecting system, arrange data collecting system sample rate,Writing time and triggering mode;
Second step, during test, open the voltage switch of voltage conversion circuit, paired pulses wave-shaping circuit suppliesElectricity;
3rd step, ignition and detonation is carried out in test, and electric probe is natural conducting under the effect of detonation, pulse shapingThe switch state transitions of electric probe is become to have the positive pressure pulse signal of certain sequential by circuit, and by this malleation arteries and veinsRush signal and be input to data collecting system;
4th step, according to the sample rate, writing time and the triggering mode that arrange, data collecting system 5 is automaticRecord the positive pressure pulse signal of each passage input, the time of reading positive pressure pulse signal just can show that each is logicalThe simultaneous initiation time in road.
Described pulse former comprises electric capacity C1, resistance R3, resistance R4, resistance R5, diodeD3; The output voltage of resistance R3 mono-termination voltage conversion circuit, the anode of another terminating diode D3,Negative electrode series capacitance C1 and the resistance R5 successively of diode D3, the other end ground connection of resistance R5, resistanceR4 is connected in parallel on the two ends of resistance R3 and diode D3; The left end of R3 and the right-hand member of C1 are pulse shaping electricityThe signal input part on road, connects mininoise cable during test, the signal that the two ends of R3 are pulse former exportsEnd, connects the port of data collecting system during test.
The present invention compared with prior art beneficial effect is:
(1) the present invention adopts pulse former that the switch state transitions of the electrical resistivity survey utmost point is become to have certain sequentialPositive pressure pulse signal, signal amplitude is strong, and rising edge ascending time is fast, is easy to differentiate, can ensures to capture quick-friedThe Continuity signal of the electrical resistivity survey utmost point when fried.
(2) the present invention adopts voltage conversion circuit, and the operating voltage of pulse former is brought up to by 3V12V, improves the anti-interference of pulse former, increases the amplitude of pulse signal, simultaneously two joints 5Easy to operate under number 3V voltage lowered in field environment that battery provides, be easy to change.
(3) the present invention adopts independently system of each passage, mutually isolated, avoids between each passageInterfering with each other of signal, improves the reliability of signal, and the same pacing of numerous passage can be realized in theoryAmount, through verification experimental verification, engineering can meet the synchro measure of 24 passages.
(4) the present invention adopts the separate records of signal, signal can be analyzed, and obtains accurateTime signal.
(5) the present invention adopts the data collecting system of high sampling rate in conjunction with pulse former, makes signalPrecision can reach the magnitude of 0.1 microsecond.
Accompanying drawing explanation
Fig. 1 is the functional-block diagram of the split-second precision measuring method that the present invention adopts;
Fig. 2 is the workflow diagram that the split-second precision measuring method that adopts of the present invention is concrete;
Fig. 3 is the voltage conversion circuit figure of the split-second precision measuring method that the present invention adopts;
Fig. 4 is the pulse former figure of the split-second precision measuring method that the present invention adopts;
Fig. 5 is the test schematic diagram of application measure annular priming multi-channel synchronous burst time of the present invention;
Fig. 6 is the test schematic diagram of application measure annular beehive-shaped charge 24 Channel Synchronous burst time of the present invention.
Detailed description of the invention
As shown in Figure 1, 2, the system that the inventive method is relied on comprises electric probe 1, mininoise cable 2, electricityVoltage conversion circuit 3, pulse former 4, data collecting system 5, measure needed for electric probe 1 is placed onPosition, electric probe 1 is connected with low-frequency noise cable 2 with pulse former 4, voltage conversion circuit 3 withPulse former 4 connects in circuit board inside, and pulse former 4 and data collecting system 5 connectConnect. The 24 every roads of paths arrange separately a set of equipment and (comprise electric probe 1, mininoise cable 2, voltage to turnChange circuit 3, pulse former 4), all passages share a data collecting system 5.
The workflow of the embodiment of the present invention describes in detail as follows. Before test, electric probe 1 is fixed on to testOn each passage of required measurement, and be in off-state, the resistance value of measuring mininoise cable 2 (is alwaysChecking cable whether normal), by the signal input part low noise of electric probe 1 and pulse former 4Cable 2 connects, and the signal output part of pulse former 4 is connected with data collecting system 5, logarithmSample rate, writing time and triggering mode according to acquisition system 5 arrange, and sample rate is 10MSa/s,Writing time is 4 seconds, and triggering mode is signal internal trigger, and setting+2V voltage is triggering level, namely ought haveThe automatic record of data collecting system 5 during reach+2V of signal voltage.
During test, open the voltage switch of voltage conversion circuit 3, voltage conversion circuit is that 3V voltage is turnedChange to 12V, paired pulses wave-shaping circuit 4 is powered, and each now demonstration in data collecting system 5 leads toRoad signal is in low level always, is approximately 0V. 3V voltage can adopt two joints No. 5 batteries to provide,Easy to operate under wild environment, be easy to change. After checking the optimum configurations of confirming data collecting system 5, makeData collecting system 5 is in wait trigger state.
Ignition and detonation is carried out in test, and electric probe 1 is natural conducting under the effect of detonation, the pulse of each passageThe switch state transitions of electric probe 1 can be become to have the positive pressure pulse signal of certain sequential by wave-shaping circuit 4, willThis positive pressure pulse signal is input to data collecting system 5, and positive pressure pulse signal amplitude is+about 9V, arrangesGood data collecting system 5 records the positive pressure pulse signal of all passages, now data collecting system 5 automaticallyIn the signal of upper each passage, all comprise a positive pressure pulse signal, the time of reading positive pressure pulse signal just canDraw each position simultaneous initiation time, the sequencing that detonate can be drawn.
The connected mode of voltage conversion circuit as shown in Figure 3, wherein, 2 pin of boost chip MC34063,The direct ground connection of 4 pin, ground connection after 3 pin connect electric capacity CT, ground connection after 5 pin connect resistance R1,6 pin connect electric capacity CRear ground connection, one end of 7 pin contact resistance Rsc, resistance R, inductance L 1, another of 8 pin contact resistance REnd, the 1 pin connection other end of inductance L 1 and the anode of diode D1; The negative termination capacitor of diode D1Ground connection after C0; The anode of electric capacity C0 and 5 pin of the MC34063 two ends of connecting resistance R2 respectively; ResistanceThe other end of Rsc is connected with 6 pin of MC34063. Vin is the low-voltage of input, and Vout is for after boostingHigh voltage. When in chip during switching tube conducting, power supply is through sample resistance Rsc, inductance L 1, MC340631 pin and 2 corner-of-delta groundings, now inductance L 1 starts storage power, and provides energy by C0 load. Work as coreWhen in sheet, switching tube disconnects, power supply and inductance provide energy to load and electric capacity C0 simultaneously. Inductance is dischargingDuring energy, because the electromotive force at its two ends is identical with electric power polarity, be equivalent to two power sources in series, thusThe voltage that load obtains is higher than supply voltage. The frequency of switching tube conducting and shutoff is called the work frequency of chipRate. As long as the time constant of this frequency relative load is enough high, load just can obtain continuous print DC voltage.
Pulse former connected mode as shown in Figure 4, wherein, one end of resistance R3 and diode D3Connection, the other end is connected with one end of R4, one end of diode D3 and one end of R4 and electric capacity C1'sOne end connection, one end of electric capacity C1 is connected with one end of resistance R5, and the other end ground connection of R5, Vout isThe voltage exporting after booster circuit boosting. The wherein left end of R3 and the right-hand member of the C1 letter that is pulse formerNumber input, connects mininoise cable, the signal output part that the two ends of R3 are pulse former during test, examinationThe port of data collecting system is connect when testing. When input (i.e. electric probe) is opened a way, power supply through R3, R4,R5 charges to electric capacity C1; When input (i.e. electric probe) is closed circuit, the electric charge warp on electric capacity C1Diode D3, to R3, R4 electric discharge, resistance R3 obtains pulse voltage U, this pulse voltage U warpData collecting system 5 is carried out record.
What data collecting system 5 adopted is the Genesis series of LDS company, and sample rate reaches as high as 100MSa/s, 15 second under the sample rate that writing time is 10M, can be reached, and triggering mode has external trigger, internal triggerTwo kinds.
Microsecond grade multi-channel synchronous burst time high-precision measuring method more of the present invention and former time surveyMetering method carries out the time signal of 11 positions in the test that peripheral initiation medicine multi-channel synchronous is detonatedMeasure, as shown in Figure 5, during test, an electric probe is placed in the position of detonator, all the other electric probes are laidOn booster explosive, when after blasting cap initiation, the electric probe on detonator is connected, and pulse former exports malleation arteries and veinsRush signal, through the long primacord spray detonation signal of 100mm, 10 road booster explosives detonate simultaneously, propagation of explosionMedicine detonates, and the electric probe on booster explosive is connected, and pulse former 4 exports the positive pressure pulse of each booster explosiveSignal, taking the positive pressure pulse signal of the electric probe on detonator as zero point, reads other from data collecting system 5The time difference of booster explosive pulse signal and this pulse signal, result is as shown in table 1. Result shows that the present invention surveysThe time value validity of amount is 100%, high conformity, and accuracy is high, and the time value that detonation velocity meter is measured hasValidity is only 20%, and data are comparatively disperseed, poor accuracy.
Table 1 logging table
| Sequence number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Time (us) | 14.61 | 14.71 | 14.71 | 14.73 | 14.66 | 14.65 | 14.73 | 14.64 | 14.71 | 14.70 |
In addition, 24 road seasonal effect in time series are carried out to the structural blast sequence of certain warhead and measure, as Fig. 6 instituteShow, centre is primary explosive column, and all the other 24 is booster explosive, and box hat inside is main charge. Main primary explosive columnAnd between booster explosive, the primacord by 110mm connects. During test, cap sensitive primary explosive column,Primary explosive column is installed an electric probe, ignited 24 booster explosives by 24 primacords, 24 propagation of explosionsThe quick-fried main charge of efficacy-enhancing ingredient, 24 booster explosives are installed electric probe. Primary explosive column to 24 propagation of explosion is measured in testThe burst time of medicine, verify that with this can 24 booster explosives detonate simultaneously. 24 points are measured altogether in test,Symmetrical, test data is in table 2.
Table 2 test data record sheet
| Sequence number | Burst time (us) | Sequence number | Burst time (us) | Sequence number | Burst time (us) |
| 1 | 15.85 | 9 | 15.89 | 17 | 15.88 |
| 2 | 15.91 | 10 | 15.92 | 18 | 15.90 |
| 3 | 15.94 | 11 | 15.95 | 19 | 15.94 |
| 4 | 15.92 | 12 | 15.92 | 20 | 15.93 |
| 5 | 15.94 | 13 | 15.96 | 21 | 15.91 |
| 6 | 15.96 | 14 | 15.91 | 22 | 15.95 |
| 7 | 15.90 | 15 | 15.95 | 23 | 15.87 |
| 8 | 15.90 | 16 | 15.90 | 24 | 15.91 |
As can be seen from Table 2, the uniformity of test data is very good, meets the requirement of test program. Meanwhile,The explosion velocity that primacord can be extrapolated is 6890m/s ~ 6940m/s. Result shows that 24 tunnel time signals are completeEffectively, uniformity is better, and actual measurement burst period sequence meets the designing requirement of detonation configuration, and theory calculateVery nearly the same, demonstrate the blast design of structure of warhead, for optimizing structure design provides the foundation of quantification.These results show, the present invention can significantly improve precision and the range of time measurement.
The method not only can for blast and impact time measurement, also can for blast and impact inTachometric survey.
The unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (2)
1. a Microsecond grade multi-channel synchronous burst time high-precision measuring method, is characterized in that method is relied onEquipment comprise the electrical resistivity survey utmost point (1), mininoise cable (2), voltage conversion circuit (3) and pulse shaping electricityRoad (4); Each passage arranges separately a set of equipment, and all passages share a data collecting system (5);Method step is as follows:
The first step, before test, is fixed on the electrical resistivity survey utmost point (1) on each passage of the required measurement of test, and oneDirectly be in off-state, by the signal input part low noise of the electrical resistivity survey utmost point (1) and pulse former (4)Cable (2) connection, signal output part and the data collecting system (5) of pulse former (4) are carried outConnection, arranges sample rate, writing time and the triggering mode of data collecting system (5);
Second step, during test, opens the voltage switch of voltage conversion circuit (3), paired pulses wave-shaping circuit (4)Power;
3rd step, ignition and detonation, the electrical resistivity survey utmost point (1) natural conducting under the effect of detonation, pulse are carried out in testThe switch state transitions of the electrical resistivity survey utmost point (1) is become to have the positive pressure pulse signal of certain sequential by wave-shaping circuit (4),And this positive pressure pulse signal is input to data collecting system (5);
4th step, according to the sample rate, writing time and the triggering mode that arrange, data collecting system (5) certainlyMove the positive pressure pulse signal that records each passage input, the time of reading positive pressure pulse signal just can draw eachThe simultaneous initiation time of passage.
2. a kind of Microsecond grade multi-channel synchronous according to claim 1 burst time high-acruracy survey sideMethod, is characterized in that: described pulse former comprises electric capacity C1, resistance R3, resistance R4, resistanceR5, diode D3; The output voltage of resistance R3 mono-termination voltage conversion circuit, another terminating diodeThe anode of D3, negative electrode series capacitance C1 and the resistance R5 successively of diode D3, the other end of resistance R5Ground connection, resistance R4 is connected in parallel on the two ends of resistance R3 and diode D3; R3 connects voltage conversion circuit and exportsThe signal input part that one end of voltage and the common port of C1, R5 are pulse former, connects low noise during testAcoustic-electric cable, the signal output part that the two ends of R3 are pulse former, connects the end of data collecting system during testMouthful.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105659875B true CN105659875B (en) | 2014-04-09 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370067A (en) * | 2016-09-23 | 2017-02-01 | 西安近代化学研究所 | Synchronism detecting method for blasting system with double excitation channels |
| CN112987544A (en) * | 2021-01-29 | 2021-06-18 | 深圳市珈玛纳米技术有限公司 | Method for measuring ignition time of electric ignition head |
| CN113702438A (en) * | 2021-08-30 | 2021-11-26 | 中国人民解放军陆军工程大学 | Synchronous detonation simulation device for multi-point detonation source |
| CN113888948A (en) * | 2021-08-31 | 2022-01-04 | 中国人民解放军陆军工程大学 | Underwater multi-point detonation source aggregation synchronous explosion simulation device |
| CN114236285B (en) * | 2021-12-14 | 2023-06-13 | 中国工程物理研究院流体物理研究所 | Detonation experiment electrical measurement dynamic self-checking test system and test method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370067A (en) * | 2016-09-23 | 2017-02-01 | 西安近代化学研究所 | Synchronism detecting method for blasting system with double excitation channels |
| CN106370067B (en) * | 2016-09-23 | 2017-11-03 | 西安近代化学研究所 | A kind of detection method of two excitation passage initiation system synchronism |
| CN112987544A (en) * | 2021-01-29 | 2021-06-18 | 深圳市珈玛纳米技术有限公司 | Method for measuring ignition time of electric ignition head |
| CN112987544B (en) * | 2021-01-29 | 2022-03-11 | 深圳市珈玛纳米技术有限公司 | Method for measuring ignition time of electric ignition head |
| CN113702438A (en) * | 2021-08-30 | 2021-11-26 | 中国人民解放军陆军工程大学 | Synchronous detonation simulation device for multi-point detonation source |
| CN113888948A (en) * | 2021-08-31 | 2022-01-04 | 中国人民解放军陆军工程大学 | Underwater multi-point detonation source aggregation synchronous explosion simulation device |
| CN114236285B (en) * | 2021-12-14 | 2023-06-13 | 中国工程物理研究院流体物理研究所 | Detonation experiment electrical measurement dynamic self-checking test system and test method thereof |
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| 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: 20140409 Termination date: 20171109 |