CN104964616A - Laser ignition detonator and laser ignition detonation system - Google Patents
Laser ignition detonator and laser ignition detonation system Download PDFInfo
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- CN104964616A CN104964616A CN201510284838.2A CN201510284838A CN104964616A CN 104964616 A CN104964616 A CN 104964616A CN 201510284838 A CN201510284838 A CN 201510284838A CN 104964616 A CN104964616 A CN 104964616A
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- optical fiber
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Abstract
The present invention relates to a laser ignition detonator and a laser ignition detonation system. The laser ignition detonator comprises a laser, a detector and an optical isolator, wherein the optical isolator is provided with an input port (A), an output port (B) and a reflection outlet (C), the input port (A) is connected with the laser, the output port (B) is connected with an optical fiber connector in a matched manner through single optical fiber, and the reflection outlet (C) is connected with the detector. According to the present invention, the single optical fiber way is used, the same optical fiber is concurrently adopted as the emitting light path and the reflection light path, the optical isolator is used to introduce the reflected light into the detector to achieve the detection, and the coupling state bias problem of the dual-optical fiber does not exist in the single optical fiber way.
Description
Technical field
The present invention relates to a kind of laser ignition initiator and laser ignition initiation system.
Background technology
Existing ignition system many employings electric ignition mode, the ignition system of only a few adopts laser ignition mode, when adopting laser ignition mode, existing system adopts the mode of two optical fiber to be achieved, namely every bit flame road configures two optical fiber, and two optical fiber are coupled to the joints of optical fibre end be connected with initiator simultaneously.
As the system schematic that Fig. 1 is the mode adopting two optical fiber, during system works, first launch one group of test fluorescence signal through an Optical Fiber Transmission to terminal by laser instrument, return through another optical fiber after the reflection from lens of terminal built-in, enter detector, the intensity of detector foundation received signal judges the reliability of system link.When detector received signal energy is within the scope of test threshold, one group of laser energy launched by laser instrument, is passed to terminal through system, ignites initiator, realizes system ignition function.
As shown in Figure 2, light path detects needs the light launched from an optic fibre light path after reflection from lens, enter another optical fiber bar light path, so, except requiring optical fiber tube (earthenware or glass tube) central shaft and lens centre axle coaxially, also require that the axis of two optical fiber 1 is relative to the central shaft Striking symmetry (3 is rete) of lens 2.So need two optical fiber to be coupled with the lens of joints of optical fibre front end, the mode of coupling adopts and fine mode, and be coupling in side by side in an earthenware or glass tube by two optical fiber, desirable couple state is as shown in Fig. 3 (a).But owing to being subject to the restriction of raw-material dimensional accuracy, actual couple state deviation is comparatively large, the virtual condition after coupling is as shown in Fig. 3 (b), and the loss after causing optical signal to transmit in systems in which is comparatively large, causes the detectability of system greatly to reduce.
In addition, adopt same laser instrument to carry out detecting the transmitting of light and some flame in existing ignition system, the situation of by mistake getting angry can be caused to occur.Further, there is not protection Design between laser instrument and connector, reverberation can damage the light output end of laser instrument, causes the service life reduction of laser instrument.
Summary of the invention
The object of this invention is to provide a kind of laser ignition initiator, adopt two optical fiber and the fine couple state offset issue caused in order to solve existing laser instrument initiator.
For achieving the above object, the solution of the present invention comprises:
A kind of laser ignition initiator, comprise laser instrument, detector and the joints of optical fibre, the joints of optical fibre are used for being connected with initiator, also comprise a light spacer assembly, this light spacer assembly has an input port (A), a delivery outlet (B) and reflection outlet (C), the output of the corresponding described laser instrument in input port (A), delivery outlet (B) is coupled to the joints of optical fibre by simple optical fiber, and reflection outlet (C) connects detector.
Further, the lens centre axle of described simple optical fiber and the joints of optical fibre is coaxially arranged.
Further, described smooth spacer assembly is Faraday polarization apparatus or shunt.
Present invention also offers a kind of laser ignition initiation system, comprise at least two laser ignition initiators, each laser ignition initiator comprises laser instrument, detector and the joints of optical fibre, the joints of optical fibre are used for being connected with initiator, each laser ignition initiator also comprises a light spacer assembly, this light spacer assembly has an input port (A), a delivery outlet (B) and reflection outlet (C), the output of the corresponding described laser instrument in input port (A), delivery outlet (B) is coupled to the corresponding joints of optical fibre by simple optical fiber, reflection outlet (C) connects detector.
Further, the lens centre axle of described simple optical fiber and the joints of optical fibre is coaxially arranged.
Further, described smooth spacer assembly is Faraday polarization apparatus or shunt.
The present invention adopts single fiber mode, and same optical fiber, both as launching light path also as reflected light path, utilizing light spacer assembly reverberation to be introduced detector and realizing detecting.There is not the couple state offset issue of two optical fiber in single fiber mode.
Laser instrument is divided into testing laser device and ignition laser instrument by the present invention, and is cut when needs in transmitting light path by photoswitch, thus the situation avoiding ignition by mistake occurs.
Light spacer assembly can also guarantee that reverberation can not enter laser instrument via reflected light path and receive end face, improves the service life of laser instrument.
Accompanying drawing explanation
Fig. 1 is the laser ignition initiator system block diagram of prior art;
Fig. 2 is the optic path schematic diagram of two optical fiber and Lens Coupling;
Fig. 3 (a), Fig. 3 (b) are the theoretical couple state of two optical fiber and outer sleeve and actual couple state figure respectively;
Fig. 4 is the optic path schematic diagram of single fiber and Lens Coupling;
Fig. 5 is the laser ignition initiator structured flowchart of the embodiment of the present invention 1;
Fig. 6 is the laser ignition initiator structured flowchart of the embodiment of the present invention 2.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Laser ignition initiator embodiment 1
As shown in Figure 5, laser ignition initiator comprises laser instrument, detector and the joints of optical fibre, the joints of optical fibre are used for being connected with initiator, and a light spacer assembly, this light spacer assembly has an input port A, one delivery outlet B and reflection outlet C, the output of the corresponding laser instrument of input port A, delivery outlet B is coupled to the joints of optical fibre by simple optical fiber, and reflection outlet C connects detector.
The key of such scheme is, adopts simple optical fiber to be coupled to the joints of optical fibre.Simple optical fiber is adopted to there is not the problem adopting two coupling fiber state deviations.As shown in Figure 4, the test fluorescence signal that laser instrument is launched is transmitted into the joints of optical fibre to principle, and optical fiber is in position, lens centre, and through built-in reflection from lens, optical signal can return through original optical path.Enter detector through spacer assembly, the intensity of detector foundation received signal judges the reliability of system link.
During system works, laser instrument launches one group of fluorescence signal through system transfers to terminal, through the reflection from lens of terminal built-in, enters detector through spacer assembly, through detector to after the judgement of signal strength signal intensity.When detector received signal energy is within the scope of test threshold, one group of laser energy launched by laser instrument, is passed to terminal through system, ignites initiator, realizes system ignition function.
In the present embodiment, light spacer assembly can adopt Faraday polarization apparatus or shunt to realize.
Laser ignition initiator embodiment 2
Be with the difference of embodiment 1, embodiment 2 occurs in order to avoid the situation of getting angry by mistake, and laser instrument is divided into testing laser device and ignition laser instrument, laser instrument of getting angry is connected with light spacer assembly light path by a photoswitch with testing laser device.
During system works, first launch one group of fluorescence signal through system transfers to terminal by testing laser device, and return through original optical path after the reflection from lens of terminal built-in, and entering detector through spacer assembly, the intensity of detector foundation received signal judges the reliability of system link.When detector received signal energy is within the scope of test threshold, light path is switched to ignition laser instrument by system, and launches one group of laser energy by ignition laser instrument, is passed to terminal, ignites initiator, realize system ignition function through system.
Laser ignition initiation system embodiment
Laser ignition initiation system, comprises two or more laser ignition initiator, and laser ignition initiator is identical with the laser ignition initiator in above embodiment, therefore repeats no more.
Be presented above concrete embodiment, but the present invention is not limited to described embodiment.For those of ordinary skill in the art, according to instruction of the present invention, the change carried out embodiment without departing from the principles and spirit of the present invention, amendment, replacement and modification still fall within the scope of protection of the present invention.
Claims (6)
1. a laser ignition initiator, comprise laser instrument, detector and the joints of optical fibre, the joints of optical fibre are used for being connected with initiator, it is characterized in that, also comprise a light spacer assembly, this light spacer assembly has an input port (A), a delivery outlet (B) and reflection outlet (C), the output of the corresponding described laser instrument in input port (A), delivery outlet (B) is coupled to the joints of optical fibre by simple optical fiber, and reflection outlet (C) connects detector.
2. a kind of laser ignition initiator according to claim 1, is characterized in that, the lens centre axle of described simple optical fiber and the joints of optical fibre is coaxially arranged.
3. a kind of laser ignition initiator according to claim 1 and 2, is characterized in that, described smooth spacer assembly is Faraday polarization apparatus or shunt.
4. a laser ignition initiation system, comprise at least two laser ignition initiators, each laser ignition initiator comprises laser instrument, detector and the joints of optical fibre, the joints of optical fibre are used for being connected with initiator, it is characterized in that, each laser ignition initiator also comprises a light spacer assembly, this light spacer assembly has an input port (A), a delivery outlet (B) and reflection outlet (C), the output of the corresponding described laser instrument in input port (A), delivery outlet (B) is coupled to the corresponding joints of optical fibre by simple optical fiber, reflection outlet (C) connects detector.
5. a kind of laser ignition initiation system according to claim 4, is characterized in that, the lens centre axle of described simple optical fiber and the joints of optical fibre is coaxially arranged.
6. a kind of laser ignition initiation system according to claim 4 or 5, is characterized in that, described smooth spacer assembly is Faraday polarization apparatus or shunt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510284838.2A CN104964616A (en) | 2015-05-29 | 2015-05-29 | Laser ignition detonator and laser ignition detonation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510284838.2A CN104964616A (en) | 2015-05-29 | 2015-05-29 | Laser ignition detonator and laser ignition detonation system |
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| CN104964616A true CN104964616A (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510284838.2A Pending CN104964616A (en) | 2015-05-29 | 2015-05-29 | Laser ignition detonator and laser ignition detonation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132797A (en) * | 2017-06-01 | 2017-09-05 | 南京卓砾智测控技术有限公司 | A kind of explosive field wireless type transient state trigger control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5404820A (en) * | 1994-06-09 | 1995-04-11 | The United States Of America As Represented By The Department Of Energy | No moving parts safe & arm apparatus and method with monitoring and built-in-test for optical firing of explosive systems |
| CN102840799A (en) * | 2012-08-30 | 2012-12-26 | 中国科学院长春光学精密机械与物理研究所 | Laser ignition system with double-security design |
| CN104048565A (en) * | 2014-06-09 | 2014-09-17 | 中国科学院长春光学精密机械与物理研究所 | Laser ignition device of single fiber structure |
-
2015
- 2015-05-29 CN CN201510284838.2A patent/CN104964616A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5404820A (en) * | 1994-06-09 | 1995-04-11 | The United States Of America As Represented By The Department Of Energy | No moving parts safe & arm apparatus and method with monitoring and built-in-test for optical firing of explosive systems |
| CN102840799A (en) * | 2012-08-30 | 2012-12-26 | 中国科学院长春光学精密机械与物理研究所 | Laser ignition system with double-security design |
| CN104048565A (en) * | 2014-06-09 | 2014-09-17 | 中国科学院长春光学精密机械与物理研究所 | Laser ignition device of single fiber structure |
Non-Patent Citations (1)
| Title |
|---|
| 宗思光 等: "高功率激光辐射近场鬼点反射对激光器损伤及抑制方法", 《光电技术应用》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132797A (en) * | 2017-06-01 | 2017-09-05 | 南京卓砾智测控技术有限公司 | A kind of explosive field wireless type transient state trigger control method |
| CN107132797B (en) * | 2017-06-01 | 2019-03-15 | 南京卓砾智测控技术有限公司 | A kind of explosive field wireless type transient state trigger control method |
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Application publication date: 20151007 |
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