CN107132797A - A kind of explosive field wireless type transient state trigger control method - Google Patents
A kind of explosive field wireless type transient state trigger control method Download PDFInfo
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- CN107132797A CN107132797A CN201710404748.1A CN201710404748A CN107132797A CN 107132797 A CN107132797 A CN 107132797A CN 201710404748 A CN201710404748 A CN 201710404748A CN 107132797 A CN107132797 A CN 107132797A
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000002360 explosive Substances 0.000 title claims abstract description 31
- 230000001052 transient effect Effects 0.000 title claims abstract description 19
- 238000012360 testing method Methods 0.000 claims abstract description 20
- 230000003321 amplification Effects 0.000 claims abstract description 19
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 19
- 230000003287 optical effect Effects 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 230000005622 photoelectricity Effects 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 230000004044 response Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 235000017899 Spathodea campanulata Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
Abstract
A kind of explosive field wireless type transient state trigger control method, step is as follows：1）Modulated light source device and photoelectric signal process equipment are separately fixed near explosive source and test node；2）Modulated signal line is wound on powder column, system electrification, spot size of the regulation laser in test node；3）The square wave that second controller and the first controller are produced is carried out with frequency co-phasing operation；4）The output voltage V6 of the multiplication factor of second amplifying circuit, as far as possible amplification lock phase amplifying circuit is adjusted, the reference voltage Va of comparison circuit is adjusted, the reference voltage Va of comparison circuit is slightly less than negative terminal input voltage V7, i.e. Va<V7, output voltage V8 are low level；5）Optical processing device is properly protected processing, treats that detonator signal arrives, second controller produces trigger signal.The present invention can solve a series of problems, such as triggering response speed in triggering system is slow, field wiring is inconvenient and reduces influence of the ambient light to triggering system.
Description
Technical field
Control method field is used the present invention relates to outfield explosive parameters test, more particularly to a kind of explosive field wireless type wink
State trigger control method.
Background technology
Various ammunition explosion times, high temperature, the detonation product destruction body of high pressure form and a variety of injure member, such as fireball, fragmentation
With shock wave etc..The test and evaluation of damage effectiveness is the necessary link in all kinds of explosive development processes, but explosive field is surveyed
Test ring border very severe, all types of explosives, the test of weapon warhead power and Test System for Rocket Engine Test can all enter in the environment
OK.Explosive field has many kinds of parameters to test, and on-the-spot test node is more, and the measuring node of same parameters can up to tens,
Trigger signal in all kinds of acquisition systems need it is outside provide, and the parameter testing of each node is when must assure that identical is referred to
Between, if data processing will be more complicated after the triggering moment of neither one standard, experiment, influence the standard of weapons and ammunitions power performance
Really assess.Triggering Control System can provide reliable trigger signal for test system.Current triggering mode mainly has radio communication
Triggering Method, sound Triggering Method, broken string Triggering Method and light Triggering Method etc..The deficiency of traditional triggering system is mainly reflected in following
Aspect：
1. it is slow to trigger speed.Each node of radio communication triggering mode is connected without lead, but data transmission bauds is slow, synchronous
Time, synchronism was relatively low in Millisecond.Sound Triggering Method is to explode the acoustical signal produced as trigger signal, but sound is in air
Middle spread speed is slower, and influenced by ambient temperature.
2. field wiring is inconvenient.Trigger winding is wrapped on powder column by broken string Triggering Method, and instant of detonation coil disconnects production
Raw trigger signal, this method needs to lay longer cable between powder column and tester.It is destructive when explosive parameters are tested
Greatly, transmission cable easily wrecks, and cost is high, and field wiring is inconvenient, and workload is big.
3. interference noise is big.Light Triggering Method will explode light as trigger signal, and light spread speed is fast, and wireless type is triggered,
But photoelectric device can produce larger photoelectric current under strong light out of doors, it is impossible to various objects in response blast light, test environment
Strong light on transient reflection to photoelectric device may also cause false triggering phenomenon.
In summary, common explosive field triggering mode can not all reach simultaneously wireless type, fast response time with it is anti-interference
Ability waits require by force.
The content of the invention
In order to solve above-mentioned problem, the present invention provides a kind of explosive field wireless type transient state trigger control method, leads to
Cross the explosive field wireless type transient state trigger control method and can solve that triggering response speed in triggering system is slow, field wiring not
It is convenient and a series of problems, such as reduce influence of the ambient light to triggering system, for up to this purpose, the present invention provides a kind of blast
Field wireless type transient state trigger control method, is comprised the following steps that：
1) modulated light source device and photoelectric signal process equipment are separately fixed near explosive source and test node；
2) modulated signal line is wound on powder column, system electrification, spot size of the regulation laser in test node, it is ensured that
Light-sensitive device in optical processing device is in hot spot；
3) square wave that second controller and the first controller are produced is carried out with frequency co-phasing operation；
4) the output voltage V6 of the multiplication factor of second amplifying circuit, as far as possible amplification lock phase amplifying circuit, regulation are adjusted
The reference voltage Va of comparison circuit, makes the reference voltage Va of comparison circuit be slightly less than negative terminal input voltage V7, i.e. Va<V7, output
Voltage V8 is low level；
5) optical processing device is properly protected processing, treats that detonator signal arrives, second controller produces trigger signal.
Further improvement of the present invention, the photoelectric signal process equipment contains pre-amplification circuit, second amplifying circuit, lock
Phase amplifying circuit and comparison circuit, the pre-amplification circuit, second amplifying circuit, the number for locking phase amplifying circuit and comparison circuit
Relation is as follows：
1) P1 pin 1 is photocell anode, and pin 2 is photocell negative terminal, and Vpd is electric to be applied to photocell reverse bias
Pressure,R3, R8 parameter are set so that Vpd<0.It is i that photocell, which produces photoelectric current, through U1's
I/V change-over circuits, obtain V0=-i × R1, then filter out photronic dark current through high-pass filtering and reverse bias voltage is drawn
The low frequency component risen, containing DC component, obtains voltage V1；
2) in second amplifying circuitFeedback resistance R2 resistance is adjustable simultaneously；
3) according to the filtering principle of lock phase amplifying circuit, sense channel signal includes measured signal and noise signal, order inspection
Survey channel signal is f1=s1(t)+n (t), reference signal is f2=s2(t), reference signal and measured signal s1(t) with frequency, n (t)
For noise signal
Assuming thats2(t)=sin (2 π ft), then two paths of signals multiplication is as follows：
After low-pass filtered device, as long as setting the cut-off frequency f of low pass filtercut≤ f can filter out harmonic component,
Retain DC component, amplitude information and phase information comprising measured signal, DC componentIt is proportional to measured signal
Amplitude.Lock in phase amplifying circuit, V5=V4×Vf, through RC low pass filters, the DC component of V5 signals is only retained in V6, through electricity
Press follower, V7=V6；
4) in comparison circuit, before blast, resistance R13 and R14 are adjusted so that V7>Va, output voltage V8 are low level, quick-fried
V7 after fried<Va, output voltage V8 are from low transition to high level, pre-amplification circuit of the present invention, second amplifying circuit, lock phase
The mathematical relationship of the Key Circuit such as amplifying circuit and comparison circuit mainly uses relation above, reaches corresponding purpose.
Further improvement of the present invention, modulation laser is produced by modulation laser, the blast that the modulation laser is produced
The signal transmission of signal and optical processing device uses laser signal, and the present invention mainly uses laser signal.
Further improvement of the present invention, the modulation laser is from the adjustable TTL modulation laser of spot size, this hair
Bright laser is mainly from the adjustable TTL modulation laser of spot size.
Further improvement of the present invention, the lock phase amplifying circuit is made up of multiplier circuit with low-pass filter circuit, low
The cut-off frequency of bandpass filter circuit is less than the frequency for the reference signal that the second amplifier is produced, and present invention lock phase amplifying circuit is main
It is made up of multiplier circuit with low-pass filter circuit.
Further improvement of the present invention, the light-sensitive device uses photocell, the pre-amplification circuit, two grades of amplification electricity
Road uses operational amplification circuit chip, and the amplifier chip of the comparison circuit uses comparator chip, first controller and
Second controller is made up of FPGA or DSP or arm processor and its peripheral circuit, and amplifier chip of the present invention, controller can be adopted
With above type chip and processor.
A kind of explosive field wireless type transient state trigger control method of the present invention, traditional draw is substituted using optical signal transfer mode
Line mode, and realize that the anti-interference process of signal substitutes traditional processing method by locking phase amplifying circuit principle.Using frequency
Adjustable laser generator, produces the LASER Light Source of frequency-adjustable.After blast, the modulated signal line of modulated light source device is fried
Disconnected, laser can not produce modulated optical signal, and the light-sensitive device of optical processing device can not be received with reference signal with frequently same
The optical signal of phase, lock phase amplifying circuit output voltage can produce saltus step, and system output Trig control signal triggers response after use
Speed is fast, and field wiring is convenient, can further reduce influence of the ambient light to triggering system.
Brief description of the drawings
Fig. 1 is schematic diagram of the present invention；
Fig. 2 is the pre-amplification circuit schematic diagram in photoelectric signal process equipment of the present invention；
Fig. 3 is the second amplifying circuit schematic diagram in photoelectric signal process equipment of the present invention；
Fig. 4 is the lock phase amplifying circuit schematic diagram in photoelectric signal process equipment of the present invention；
Fig. 5 is the comparison circuit schematic diagram in photoelectric signal process equipment of the present invention；
Fig. 6 is workflow diagram of the present invention；
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
The present invention provides a kind of explosive field wireless type transient state trigger control method, is triggered by the explosive field wireless type transient state
Control method can solve that triggering response speed in triggering system is slow, field wiring is inconvenient and reduces ambient light to triggering
The influence of system.
A kind of explosive field wireless type transient state trigger control device of patent of the present invention is as shown in figure 1, including modulated light source device
With photoelectric signal process equipment.Modulated light source device includes the first controller, modulation laser and modulated signal line and constituted, photoelectricity
Signal processing apparatus include light-sensitive device, pre-amplification circuit, second amplifying circuit, second controller, lock phase amplifying circuit and
Comparison circuit is constituted.Modulated light source device and the shell of photoelectric signal process equipment are blast resistance construction shell.
Modulated light source device is positioned over blast source position, and modulation laser and the first controller are fixed on explosive test platform
On, the first controller produces frequency, the adjustable square-wave signal of dutycycle.And modulation laser is supplied to by modulated signal line,
Modulated signal line is wound on blast powder column as coil.
Photoelectric signal process equipment is placed near explosive parameters tester, and light-sensitive device receives the light that modulation laser is produced
Signal, and electric signal is converted into, and pre-amplification circuit sub-device is supplied in the form of electric current, wherein built-in amplification electricity
Way device has I/V amplifiers and high-pass filter, and current signal is converted to voltage signal, high-pass filter by I/V amplifiers
Bias voltage in the voltage signal of conversion is filtered out, only reserved high-frequency AC compounent.Second amplifying circuit includes first voltage
Follower, second voltage follower and see-saw circuit, the voltage signal of wherein pre-amplification circuit are followed through first voltage
Device is supplied to see-saw circuit, and the multiplication factor of see-saw circuit can be adjusted by potentiometer, and its output signal passes through
Two voltage followers are supplied to lock phase amplifying circuit, and second controller is produced to be carried with the first controller with frequency with the square-wave signal of phase
Supply lock phase amplifying circuit includes multiplier circuit and low-pass filter circuit, multiplication as its reference signal, lock phase amplifying circuit
Reference signal and the output signal of second amplifying circuit are carried out multiplying by device circuit, and are filtered out by low-pass filter circuit humorous
Wave component and interference signal, the DC component of stick signal.The output signal of phase amplifying circuit is locked through comparison circuit, by signal
It is supplied to second controller, second controller output multi-channel synchronization Trig control signal.
Patent explosive field of the present invention substitutes traditional gage system using optical signal, and real by locking phase amplifying circuit principle
The anti-interference process of existing signal substitutes traditional processing method.Using the laser generator of frequency-adjustable, frequency-adjustable is produced
LASER Light Source.After blast, the modulated signal line of modulated light source device is blown up, and laser can not produce modulated optical signal, photoelectricity
The light-sensitive device of processing unit can not be received with reference signal with optical signal of the frequency with phase, lock phase amplifying circuit output voltage meeting
Produce saltus step, system output Trig control signal.
It is preposition in a kind of photoelectric signal process equipment of explosive field wireless type transient state trigger control method of patent of the present invention
Amplifying circuit, second amplifying circuit, lock the Key Circuit such as phase amplifying circuit and comparison circuit mathematical relationship it is as follows：
1) P1 pin 1 is photocell anode, and pin 2 is photocell negative terminal, and Vpd is electric to be applied to photocell reverse bias
Pressure,R3, R8 parameter are set so that Vpd<0.It is i, the I/ through U1 that photocell, which produces photoelectric current,
V change-over circuits, obtain V0=-i × R1, then filter out caused by photronic dark current and reverse bias voltage through high-pass filtering
Low frequency component (contain DC component), obtain voltage V1；
2) in second amplifying circuitFeedback resistance R2 resistance is adjustable simultaneously；
3) according to the filtering principle of lock phase amplifying circuit, sense channel signal includes measured signal and noise signal, order inspection
Survey channel signal is f1=s1(t)+n (t), reference signal is f2=s2(t), reference signal and measured signal s1(t) with frequency, n (t)
For noise signal
Assuming thats2(t)=sin (2 π ft), then two paths of signals multiplication is as follows：
After low-pass filtered device, as long as setting the cut-off frequency f of low pass filtercut≤ f can filter out harmonic component,
Retain DC component, amplitude information and phase information comprising measured signal, DC componentIt is proportional to measured signal
Amplitude.Lock in phase amplifying circuit, V5=V4×Vf, through RC low pass filters, the DC component of V5 signals is only retained in V6, through electricity
Press follower, V7=V6；
4) in comparison circuit, before blast, resistance R13 and R14 are adjusted so that V7>Va, output voltage V8 are low level, quick-fried
V7 after fried<Va, output voltage V8 is from low transition to high level.
The photocell model 2DU10 that light-sensitive device is used during Photoelectric Signal Processing mould is fast, as shown in Figure 2-5, U1 is
LF357, U2, U3 and U5 operational amplifier chip are OP27, and U4 is OP37, and multiplier chip U6 is AD633, comparator chip
For LM393；First controller can use FPGA, DSP or arm processor with second controller, and modulation laser can using frequency
Adjust, the adjustable TTL of spot size modulates laser.
As shown in fig. 6, a kind of course of work of explosive field wireless type transient state trigger control method of patent of the present invention is：
1) modulated light source device and photoelectric signal process equipment are separately fixed at into blast to come near test node；
2) modulated signal line is wound on powder column, system electrification, spot size of the regulation laser in test node, it is ensured that
Light-sensitive device in optical processing device is in hot spot；
3) square wave that second controller and the first controller are produced is carried out with frequency co-phasing operation；
4) the output voltage V6 of the multiplication factor of second amplifying circuit, as far as possible amplification lock phase amplifying circuit, regulation are adjusted
The reference voltage Va of comparison circuit, makes the reference voltage Va of comparison circuit be slightly less than negative terminal input voltage V7, i.e. Va<V7, output
Voltage V8 is low level；
5) optical processing device is properly protected processing, treats that detonator signal arrives, second controller produces trigger signal.
The above described is only a preferred embodiment of the present invention, being not the limit for making any other form to the present invention
System, and any modification made according to technical spirit of the invention or equivalent variations, still fall within model claimed of the invention
Enclose.
Claims (6)
1. a kind of explosive field wireless type transient state trigger control method, is comprised the following steps that, it is characterised in that：
1) modulated light source device and photoelectric signal process equipment are separately fixed near explosive source and test node；
2) modulated signal line is wound on powder column, system electrification, spot size of the regulation laser in test node, it is ensured that photoelectricity
Light-sensitive device in processing unit is in hot spot；
3) square wave that second controller and the first controller are produced is carried out with frequency co-phasing operation；
4) the output voltage V6 of the multiplication factor of second amplifying circuit, as far as possible amplification lock phase amplifying circuit is adjusted, regulation is compared
The reference voltage Va of circuit, makes the reference voltage Va of comparison circuit be slightly less than negative terminal input voltage V7, i.e. Va<V7, output voltage
V8 is low level；
5) optical processing device is properly protected processing, treats that detonator signal arrives, second controller produces trigger signal.
2. a kind of explosive field wireless type transient state trigger control method according to claim 1, it is characterized in that：The optical telecommunications
Number processing unit is containing pre-amplification circuit, second amplifying circuit, lock phase amplifying circuit and comparison circuit, the preposition amplification electricity
Road, second amplifying circuit, lock phase amplifying circuit and comparison circuit mathematical relationship it is as follows：
1) P1 pin 1 is photocell anode, and pin 2 is photocell negative terminal, and Vpd is to be applied to photocell reverse bias voltage,R3, R8 parameter are set so that Vpd<0.It is i, the I/V through U1 that photocell, which produces photoelectric current,
Change-over circuit, obtains V0=-i × R1, then filter out caused by photronic dark current and reverse bias voltage through high-pass filtering
Low frequency component, containing DC component, obtains voltage V1；
2) in second amplifying circuitFeedback resistance R2 resistance is adjustable simultaneously；
3) according to the filtering principle of lock phase amplifying circuit, sense channel signal includes measured signal and noise signal, and order detection is logical
Road signal is f1=s1(t)+n (t), reference signal is f2=s2(t), reference signal and measured signal s1(t) with frequency, n (t) is to make an uproar
Acoustical signal
Assuming thats2(t)=sin (2 π ft), then two paths of signals multiplication is as follows：
After low-pass filtered device, as long as setting the cut-off frequency f of low pass filtercut≤ f can filter out harmonic component, retain
DC component, amplitude information and phase information comprising measured signal, DC componentIt is proportional to the amplitude of measured signal.
Lock in phase amplifying circuit, V5=V4×Vf, through RC low pass filters, the DC component of V5 signals is only retained in V6, through voltage follow
Device, V7=V6；
4) in comparison circuit, before blast, resistance R13 and R14 are adjusted so that V7>Va, output voltage V8 are low level, after blast
V7<Va, output voltage V8 is from low transition to high level.
3. a kind of explosive field wireless type transient state trigger control method according to claim 1, it is characterized in that：Modulate laser by
Modulate laser to produce, the signal transmission of detonator signal and optical processing device that the modulation laser is produced is using laser letter
Number.
4. a kind of explosive field wireless type transient state trigger control method according to claim 3, it is characterized in that：The modulation swashs
Light device is from the adjustable TTL modulation laser of spot size.
5. a kind of explosive field wireless type transient state trigger control method according to claim 2, it is characterized in that：The lock is mutually put
Big circuit is made up of multiplier circuit with low-pass filter circuit, and the cut-off frequency of low-pass filter circuit is produced less than the second amplifier
Reference signal frequency.
6. a kind of explosive field wireless type transient state trigger control method according to claim 2, it is characterized in that：The photosensor
Part uses photocell, and the pre-amplification circuit, second amplifying circuit use operational amplification circuit chip, the comparison circuit
Amplifier chip uses comparator chip, and first controller and second controller are by FPGA or DSP or arm processor and its outside
Enclose circuit composition.
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| CN201710404748.1A CN107132797B (en) | 2017-06-01 | 2017-06-01 | A kind of explosive field wireless type transient state trigger control method |
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| CN201710404748.1A CN107132797B (en) | 2017-06-01 | 2017-06-01 | A kind of explosive field wireless type transient state trigger control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607688A (en) * | 2017-11-09 | 2018-01-19 | 南京卓砾智测控技术有限公司 | Multinode explosive parameters tester and its double-photo signal triggering method |
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| CN101476845A (en) * | 2009-01-23 | 2009-07-08 | 陈纳爽 | Light-operated security type blasting machine |
| JP2010253088A (en) * | 2009-04-27 | 2010-11-11 | Citizen Holdings Co Ltd | Automatic start-signaling pistol, time measuring device, and time measuring system |
| CN202994000U (en) * | 2012-12-28 | 2013-06-12 | 新时代民爆（辽宁）股份有限公司 | Optical fiber detonator |
| CN104964616A (en) * | 2015-05-29 | 2015-10-07 | 中航光电科技股份有限公司 | Laser ignition detonator and laser ignition detonation system |
| CN205828876U (en) * | 2016-06-21 | 2016-12-21 | 中国工程物理研究院应用电子学研究所 | High power laser fuse pulsed drive source |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476845A (en) * | 2009-01-23 | 2009-07-08 | 陈纳爽 | Light-operated security type blasting machine |
| JP2010253088A (en) * | 2009-04-27 | 2010-11-11 | Citizen Holdings Co Ltd | Automatic start-signaling pistol, time measuring device, and time measuring system |
| CN202994000U (en) * | 2012-12-28 | 2013-06-12 | 新时代民爆（辽宁）股份有限公司 | Optical fiber detonator |
| CN104964616A (en) * | 2015-05-29 | 2015-10-07 | 中航光电科技股份有限公司 | Laser ignition detonator and laser ignition detonation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107607688A (en) * | 2017-11-09 | 2018-01-19 | 南京卓砾智测控技术有限公司 | Multinode explosive parameters tester and its double-photo signal triggering method |
| CN107607688B (en) * | 2017-11-09 | 2024-02-09 | 西安图变光电科技有限公司 | Multi-node explosion parameter tester and double-optical signal triggering method thereof |
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| CN107132797B (en) | 2019-03-15 |
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