CN104165690B - A kind of High Energy Laser Energy Meter calibrating installation - Google Patents
A kind of High Energy Laser Energy Meter calibrating installation Download PDFInfo
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- CN104165690B CN104165690B CN201410448322.2A CN201410448322A CN104165690B CN 104165690 B CN104165690 B CN 104165690B CN 201410448322 A CN201410448322 A CN 201410448322A CN 104165690 B CN104165690 B CN 104165690B
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Abstract
The invention provides a kind of High Energy Laser Energy Meter calibrating installation, described device contains 4 high-power halogen tungsten lamps, 8 halogen tungsten lamp fixed supports, reflection cone, reflection cone fixed mount, cooling fan, adjusting screw(rod), dull and stereotyped energy meter, thermocouple temperature sensor, changeover base, power lead, electric energy meter, signal lead, temperature data collecting systems.Reflection cone is positive truncated rectangular pyramids structure, and outside surface is through the gold-plated coating of sandblasting, and 4 high-power halogen tungsten lamps are arranged on 4 sides of reflection cone.Dull and stereotyped energy counts patty structure, and outside surface is through the gold-plated coating of polishing.Reflection cone, dull and stereotyped energy meter are all connected with adjusting screw(rod) by screw thread, and distance therebetween adjusts by the screw thread rotating adjusting screw(rod).The present invention can realize the calibration to conical cavity type High Energy Laser Energy Meter, and the calibration power significantly promoted high-power High Energy Laser Energy Meter and calibration accuracy, calibrating installation is in use safely, reliably.
Description
Technical field
The invention belongs to energy measurement of high energy laser calibration field, be specifically related to a kind of High Energy Laser Energy Meter calibrating installation, be applicable to the High Energy Laser Energy Meter calibration of conical cavity type.
Background technology
Conical cavity type High Energy Laser Energy Meter is used for the direct measurement of energy measurement of high energy laser, at present owing to lacking stable high-power laser light source and powerful standard energy meter, conventional laser energy meter calibration steps cannot be adopted to calibrate, electric light or electric heating equivalent device can only be utilized, the mode of luminous energy or heat energy that converts electrical energy into replace the energy of superlaser, thus carries out equivalence calibration.Document " Calibration Method for High Energy Laser Energy Meter research " (photon journal, 2007,36(6): 982-985) people such as Liu Guorong has carried out the research of electric light calibration steps.The people such as document " in electric calibration laser, the design of power meter and value stabilizes are investigated " (modern measurement and test, 1996,5:36-39) Yu Jing utilize electric heating calibrating installation to achieve the calibration of the low power power energy meter of centering.But, above equivalent device is when being applied to high-power high-energy laser energy meter calibrating, mainly there is following problem: first, in the equivalent power of calibration, because the inner space of its absorbing cavity of conical cavity type High Energy Laser Energy Meter is narrow and small, the electric light equivalent device of current routine adopts the mode of single kW level power halogen tungsten lamp usually when designing, equivalent power is low, therefore how should obtain higher equivalent power (as reaching more than 10kW) in narrow space, ensure that the safety of halogen tungsten lamp and reliability are one of problems needing to solve simultaneously again, secondly, in the precision of calibration, because the equivalent power of electric light conventional at present or electric heating equivalent device is lower, in order to obtain the equivalence compared with macro-energy, the mode that usual employing works long hours is to exchange the increase of energy for, this mode can introduce the impact of thermal loss factor, calibration accuracy is low, uncertainty of measurement is large, and superlaser has extremely strong directivity, and the light source that regulation light source generally adopts the total space to disperse, portion of energy not only can be caused to lose, and light distribution in absorbing cavity incident from superlaser time light distribution completely different, calibration accuracy is low, therefore be how need key problems-solving by the structural design of calibrating installation to improve calibration accuracy, in addition, the reliability of calibrating installation and security are also the problems merited attention, due to the restriction that the inner space of conical cavity type High Energy Laser Energy Meter absorbing cavity is narrow and small, and in order to improve precision in a calibration process absorbing cavity be generally airtight space, and in airtight space, light high-power lamp group for a long time, local temperature constantly can accumulate rising, very easily the danger such as fluorescent tube explosion occurs.
Summary of the invention
In order to realize the calibration to conical cavity type High Energy Laser Energy Meter, solving the low problem of calibration equivalent power, improve calibration accuracy, and assurance device being safe and reliable, the invention provides a kind of High Energy Laser Energy Meter calibrating installation.
A kind of High Energy Laser Energy Meter calibrating installation, is characterized in: described calibrating installation comprises high-power halogen tungsten lamp, halogen tungsten lamp fixed support, reflection cone, reflection cone fixed mount, cooling fan, adjusting screw(rod), dull and stereotyped energy meter, thermocouple temperature sensor, changeover base, power lead, electric energy meter, signal lead, temperature data collecting system; Described high-power halogen tungsten lamp is arranged on halogen tungsten lamp fixed support, and halogen tungsten lamp fixed support is connected with reflection cone by screw thread; The bottom of reflection cone is provided with reflection cone fixed mount; Cooling fan is installed in reflection cone chamber, is fixed on reflection cone fixed mount by screw thread; Reflection cone fixed mount is fixedly connected with adjusting screw(rod); Adjusting screw(rod) passes from dull and stereotyped energy meter center, and dull and stereotyped energy meter is connected with adjusting screw(rod) by screw thread; Reflection cone cavity inner wall and dull and stereotyped energy meter shady face are provided with several thermocouple temperature sensor, and thermocouple temperature sensor is electrically connected with temperature data collecting system by signal lead; Changeover base is fixedly mounted on the end of adjusting screw(rod) by screw thread, changeover base is provided with the AC power input interface of high-power halogen tungsten lamp, and is connected with electrical energy meter electricity by power lead.
Described reflection cone is positive truncated rectangular pyramids structure, and inside is set to hollow cavity.The cone angle size of reflection cone and the cone angle equal and opposite in direction of the conical cavity type High Energy Laser Energy Meter be calibrated.
Described high-power halogen tungsten lamp is 4 and is arranged on 4 isosceles trapezoid lateral surfaces of reflection cone respectively by halogen tungsten lamp fixed support, often props up halogen tungsten lamp and installs along the axis of symmetry of the isosceles trapezoid of correspondence.
Described dull and stereotyped energy counts patty structure, center is provided with tapped through hole, and adjusting screw(rod) passes from dull and stereotyped energy meter center, and by screw thread compact siro spinning technology, dull and stereotyped energy meter freely can rotate and change push-in stroke, for regulating the distance between dull and stereotyped energy meter and reflection cone on adjusting screw(rod).
The working end of described thermocouple temperature sensor is dew end type.
Described reflection cone adopts red copper material, and reflection cone outside surface has through the gold-plated coating of sandblasting.
The shot blasting particles degree of described reflection cone external surface coating is 3 μm ~ 6 μm, and gold plating thickness is 3 μm ~ 6 μm.
Described dull and stereotyped energy meter adopts red copper material, and the surface of side to light has through the gold-plated coating of polishing.
In order to improve equivalent power and the calibration accuracy of calibrating installation, this invention takes following several technical measures: one is that employing 4 high-power halogen tungsten lamps are as regulation light source, calibration general power reaches tens thousand of watts, makes calibrating installation can reach larger energy at short notice; Two is the reflection cones designing positive truncated rectangular pyramids structure, and high-power halogen tungsten lamp is installed on reflection cone by halogen tungsten lamp fixed support, the irradiation zone of each halogen tungsten lamp is made to be gathered in High Energy Laser Energy Meter front end as far as possible, and the cone angle size of reflection cone and the cone angle equal and opposite in direction of conical cavity type High Energy Laser Energy Meter be calibrated, reflection cone outside surface is through the gold-plated process of sandblasting, the light that halogen tungsten lamp is radiate is more even after the diffuse reflection of reflection cone outside surface, also greatly reduces the absorption of reflection cone to energy simultaneously; Three is that the bottom of reflection cone is provided with reflection cone fixed mount, teflon heat insulating mattress is added between reflection cone and reflection cone fixed mount, reduce the heat transfer between reflection cone and reflection cone fixed mount and adjusting screw(rod), the energy loss that effective suppression heat transfer causes, and reflection cone cavity inner wall is provided with several thermocouple temperature sensor, be electrically connected with temperature data collecting system by signal lead, for accurately measuring the energy value obtaining reflection cone and absorb; Four is arrange dull and stereotyped energy meter, the part light stoping halogen tungsten lamp to give off is from the High Energy Laser Energy Meter porch effusion be calibrated, and adjusting screw(rod) can be utilized to change the distance between dull and stereotyped energy meter and reflection cone, thus make reflection cone be advanced to the front end of High Energy Laser Energy Meter to greatest extent, the distribution of light intensity when simulation superlaser is incident; Five is that the side to light of dull and stereotyped energy meter adopts polishing gold-plated process, by dull and stereotyped energy meter, the light that halogen tungsten lamp is dispersed to High Energy Laser Energy Meter Way in is stopped that being also again reflected back High Energy Laser Energy Meter cavity front end absorbs again, dull and stereotyped energy meter shady face is also provided with several thermocouple temperature sensor, for measuring the energy value that dull and stereotyped energy meter absorbs.
In the security, reliability of calibrating installation, this invention takes three safeguards: one is design halogen tungsten lamp fixed support, make halogen tungsten lamp firm be arranged in support bracket fastened half slot, and have certain distance with reflection cone surface, thus avoid halogen tungsten lamp to be directly close to reflection cone surface, eliminate the too high potential safety hazard brought of local temperature; Two is be provided with cooling fan in reflection cone chamber, and be fixed on reflection cone fixed mount by screw thread, cooling fan can increase circulating of High Energy Laser Energy Meter inner air, forms an air flow field, avoids high-power halogen tungsten lamp to burst in confined space; Three is the positive truncated rectangular pyramids designs of reflection cone, 4 high-power halogen tungsten lamps are made to be installed on 4 sides of positive truncated rectangular pyramids respectively, the overlap of irradiation zone, interference between effective minimizing 4 lamps, the glass lamp shade temperature that especially between lamp, mutual irradiation causes sharply raises the danger that explosion occurs.
The mode of branched high-power halogen tungsten lamp parallel running is adopted to improve the calibration power of High Energy Laser Energy Meter calibrating installation, by the design of reflection cone, dull and stereotyped energy meter, adjusting screw(rod), and the means such as energy, heat transfer suppression that the process of surface coating, accurately measurement reflection cone and dull and stereotyped energy meter absorb, improve calibration accuracy.The present invention can realize the calibration to conical cavity type High Energy Laser Energy Meter, and the calibration power significantly promoted high-power High Energy Laser Energy Meter and calibration accuracy, calibrating installation is in use safely, reliably.
Accompanying drawing explanation
Fig. 1 is High Energy Laser Energy Meter calibrating installation structural representation of the present invention;
Fig. 2 is the connection diagram utilizing High Energy Laser Energy Meter calibrating installation of the present invention to calibrate conical cavity type High Energy Laser Energy Meter;
In figure: 1. high-power halogen tungsten lamp 2. halogen tungsten lamp fixed support 3. reflection cone 4. reflection cone fixed mount 5. cooling fan 6. adjusting screw(rod) 7. dull and stereotyped energy meter 8. thermocouple temperature sensor 9. changeover base 10. power lead 11. electric energy meter 12. signal lead 13. temperature data collecting system 14. conical cavity type High Energy Laser Energy Meter.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
embodiment 1
Fig. 1 is High Energy Laser Energy Meter calibrating installation structural representation of the present invention, and Fig. 2 is the connection diagram utilizing High Energy Laser Energy Meter calibrating installation of the present invention to calibrate conical cavity type High Energy Laser Energy Meter.In fig. 1 and 2, High Energy Laser Energy Meter calibrating installation of the present invention comprises four high-power halogen tungsten lamps 1, eight halogen tungsten lamp fixed supports 2, reflection cone 3, reflection cone fixed mount 4, cooling fan 5, adjusting screw(rod) 6, dull and stereotyped energy meter 7, thermocouple temperature sensor 8, changeover base 9, power lead 10, electric energy meter 11, signal lead 12, temperature data collecting systems 13; Described four high-power halogen tungsten lamps 1 are arranged on halogen tungsten lamp fixed support 2, and halogen tungsten lamp fixed support 2 is connected with reflection cone 3 by screw thread; The bottom of reflection cone 3 is provided with reflection cone fixed mount 4; Cooling fan 5 is installed in reflection cone 3 chamber, is fixed on reflection cone fixed mount 4 by screw thread; Reflection cone fixed mount 4 is connected and fixed by screw thread and adjusting screw(rod) 6; Adjusting screw(rod) 6 passes from dull and stereotyped energy meter 7 center, and dull and stereotyped energy meter 7 is connected with adjusting screw(rod) 6 by screw thread; Reflection cone 3 cavity inner wall and dull and stereotyped energy meter 7 shady face are provided with several thermocouple temperature sensor 8, and thermocouple temperature sensor 8 is electrically connected 13 by signal lead 12 with temperature data collecting system; Changeover base 9 is fixedly mounted on the end of adjusting screw(rod) 6 by screw thread, changeover base 9 is provided with the AC power input interface of high-power halogen tungsten lamp 1, and is electrically connected with electric energy meter 11 by power lead 10.
In Fig. 1, High Energy Laser Energy Meter calibrating installation adopts the mode of four high-power halogen tungsten lamps 1 parallel connection as regulation light source, and make the calibration general power of device reach tens thousand of watts, calibrating installation can reach higher energy at short notice.
Four high-power halogen tungsten lamps 1 to be arranged on halogen tungsten lamp fixed support 2, and halogen tungsten lamp fixed support 2 is installed on reflection cone 3 by screw thread.Reflection cone 3 is designed to positive truncated rectangular pyramids structure, and inside is set to hollow cavity, the cone angle size of reflection cone 3 and the cone angle equal and opposite in direction of the conical cavity type High Energy Laser Energy Meter be calibrated.Four high-power halogen tungsten lamps 1 are arranged on four isosceles trapezoid lateral surfaces of reflection cone 3 respectively by halogen tungsten lamp fixed support 2, often prop up halogen tungsten lamp 1 to install along the axis of symmetry of the isosceles trapezoid of correspondence, make the irradiation zone often propping up halogen tungsten lamp 1 be gathered in High Energy Laser Energy Meter front end as far as possible.Four high-power halogen tungsten lamps 1 are installed on four sides of the positive truncated rectangular pyramids of reflection cone 3 respectively, effectively can reduce the overlap of irradiation zone between four halogen tungsten lamps, interference, reduce the glass lamp shade temperature that between halogen tungsten lamp, irradiation causes mutually and sharply raise the risk that explosion occurs.
The material that reflection cone 3 adopts is red copper, and outside surface is the coating through the gold-plated process of sandblasting, and the light that halogen tungsten lamp is radiate is more even after reflection cone 3 outside surface repeatedly diffuse reflection, also greatly reduces the absorption of reflection cone 3 pairs of energy simultaneously.In the present embodiment, the shot blasting particles degree of reflection cone 3 external surface coating is 3 μm, and gold plating thickness is 3 μm.
The bottom of reflection cone 3 is provided with reflection cone fixed mount 4, adds teflon heat insulating mattress between reflection cone 3 and reflection cone fixed mount 4, reduces reflection cone 3 and the heat transfer of reflection cone fixed mount 4, effectively suppresses owing to conducting the energy loss caused.Reflection cone 3 is provided with cooling fan 5 in chamber, and is fixed on one end of reflection cone fixed mount 4 by screw thread, and cooling fan 5 can increase circulating of inner air, forms an air flow field, avoids high-power halogen tungsten lamp 1 to burst in confined space.The other end of reflection cone fixed mount 4 is connected and fixed by screw thread and adjusting screw(rod) 6.
Dull and stereotyped energy meter 7 is patty structure, and material is red copper.Dull and stereotyped energy meter 7 center is provided with tapped through hole.The side to light of dull and stereotyped energy meter 7 is the coating through the gold-plated process of polishing, and the light that halogen tungsten lamp 1 is dispersed to High Energy Laser Energy Meter Way in is stopped by dull and stereotyped energy meter 7 and is again reflected back High Energy Laser Energy Meter cavity front end and again absorbs.
The outside surface of adjusting screw(rod) 6 is provided with fine thread, and inside is hollow cavity.Adjusting screw(rod) 6 passes from the tapped through hole at dull and stereotyped energy meter 7 center, and dull and stereotyped energy meter 7 is connected with adjusting screw(rod) 6 by screw thread.By rotating the screw thread of adjusting screw(rod) 6, dull and stereotyped energy meter 7 freely can rotate and change push-in stroke to regulate the distance between dull and stereotyped energy meter 7 and reflection cone 3 on adjusting screw(rod) 6, thus makes reflection cone 3 be advanced to the front end of High Energy Laser Energy Meter to greatest extent.
The cavity inner wall of reflection cone 3 and the shady face of dull and stereotyped energy meter 7 are provided with several thermocouple temperature sensor 8, the working end of thermocouple temperature sensor 8 is dew end type, thermocouple temperature sensor 8 is electrically connected 13 by signal lead 12 with temperature data collecting system, for accurately measuring the energy value that reflection cone 3 and dull and stereotyped energy meter 7 absorb.
The end of adjusting screw(rod) 6 is provided with changeover base 9, is installed fixing by screw thread.Changeover base 9 is provided with the AC power input interface of high-power halogen tungsten lamp 1, and is electrically connected with electric energy meter 11 by power lead 10.
In Fig. 2, High Energy Laser Energy Meter calibrating installation of the present invention is utilized to calibrate conical cavity type High Energy Laser Energy Meter.The absorbing cavity that high-power halogen tungsten lamp 1, reflection cone 3 are arranged on High Energy Laser Energy Meter is completely inner, dull and stereotyped energy meter 7 is fixed on High Energy Laser Energy Meter absorbing cavity porch, the part light stoping halogen tungsten lamp 1 to give off is from the effusion of High Energy Laser Energy Meter absorbing cavity porch, and whole luminous energy that halogen tungsten lamp 1 is given off all are completely enclosed within High Energy Laser Energy Meter absorbing cavity inside cavity.The cone angle size of reflection cone 3 and the cone angle equal and opposite in direction of the conical cavity type High Energy Laser Energy Meter be calibrated, by rotating adjusting screw(rod) 6, make reflection cone 3 be advanced to the front end of High Energy Laser Energy Meter to greatest extent, thus improve equivalence and the precision of calibration.Utilize and be adhered to thermocouple temperature sensor 8, signal lead, the temperature data collecting system 13 of reflection cone 3 cavity inner wall and dull and stereotyped energy meter 7 shady face, accurately can measure the energy value that reflection cone 3 and dull and stereotyped energy meter 7 absorb.The input electric energy utilizing electric energy meter 11 accurately can measure halogen tungsten lamp 1 to consume.
embodiment 2
Embodiment 2 is substantially identical with embodiment 1 structure, and difference is, in the present embodiment, the shot blasting particles degree of reflection cone 3 external surface coating is 6 μm, and gold plating thickness is 6 μm.
Claims (9)
1. a High Energy Laser Energy Meter calibrating installation, is characterized in that: described calibrating installation comprises high-power halogen tungsten lamp (1), halogen tungsten lamp fixed support (2), reflection cone (3), reflection cone fixed mount (4), cooling fan (5), adjusting screw(rod) (6), dull and stereotyped energy meter (7), thermocouple temperature sensor (8), changeover base (9), power lead (10), electric energy meter (11), signal lead (12), temperature data collecting system (13); Described high-power halogen tungsten lamp (1) is arranged on halogen tungsten lamp fixed support (2), and halogen tungsten lamp fixed support (2) is connected with reflection cone (3); The bottom of reflection cone (3) is provided with reflection cone fixed mount (4); Cooling fan (5) is installed in reflection cone (3) chamber, is fixed on reflection cone fixed mount (4); Reflection cone fixed mount (4) is fixedly connected with adjusting screw(rod) (6); Adjusting screw(rod) (6) passes from dull and stereotyped energy meter (7) center, and dull and stereotyped energy meter (7) is connected with adjusting screw(rod) (6); Reflection cone (3) cavity inner wall and dull and stereotyped energy meter (7) shady face are provided with several thermocouple temperature sensor (8), and thermocouple temperature sensor (8) is electrically connected with temperature data collecting system (13) by signal lead (12); Changeover base (9) is fixedly mounted on the end of adjusting screw(rod) (6) by screw thread, changeover base (9) is provided with the AC power input interface of high-power halogen tungsten lamp (1), and is electrically connected with electric energy meter (11) by power lead (10).
2. High Energy Laser Energy Meter calibrating installation according to claim 1, is characterized in that: described reflection cone (3) is positive truncated rectangular pyramids structure, and inside is set to hollow cavity.
3. High Energy Laser Energy Meter calibrating installation according to claim 2, is characterized in that: the cone angle size of described reflection cone (3) and the cone angle equal and opposite in direction of the conical cavity type High Energy Laser Energy Meter be calibrated.
4. High Energy Laser Energy Meter calibrating installation according to claim 1, it is characterized in that: described high-power halogen tungsten lamp (1) is 4, be arranged on 4 isosceles trapezoid lateral surfaces of reflection cone (3) respectively by halogen tungsten lamp fixed support (2), often prop up halogen tungsten lamp (1) and install along the axis of symmetry of the isosceles trapezoid of correspondence.
5. High Energy Laser Energy Meter calibrating installation according to claim 1, it is characterized in that: described dull and stereotyped energy meter (7) is patty structure, center is provided with tapped through hole, adjusting screw(rod) (6) passes from dull and stereotyped energy meter (7) center, and by screw thread compact siro spinning technology, dull and stereotyped energy meter (7) can change push-in stroke, for regulating the distance between dull and stereotyped energy meter (7) and reflection cone (3) upper freely rotation of adjusting screw(rod) (6).
6. High Energy Laser Energy Meter calibrating installation according to claim 1, is characterized in that: the working end of described thermocouple temperature sensor (8) is dew end type.
7. High Energy Laser Energy Meter calibrating installation according to claim 1, is characterized in that: described reflection cone (3) adopts red copper to be material, and reflection cone (3) outside surface has through the gold-plated coating of sandblasting.
8. High Energy Laser Energy Meter calibrating installation according to claim 7, is characterized in that: the shot blasting particles degree of described reflection cone (3) external surface coating is 3 μm ~ 6 μm, and gold plating thickness is 3 μm ~ 6 μm.
9. High Energy Laser Energy Meter calibrating installation according to claim 1, is characterized in that: described dull and stereotyped energy meter (7) adopts red copper to be material, and the surface of side to light has through the gold-plated coating of polishing.
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| CN111637967B (en) * | 2020-04-30 | 2023-03-28 | 中国工程物理研究院应用电子学研究所 | Universal solid absorption type high-energy laser energy measuring probe |
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| US7952691B2 (en) * | 2009-05-08 | 2011-05-31 | Raytheon Company | Method and system of aligning a track beam and a high energy laser beam |
| CN103148948B (en) * | 2013-02-06 | 2015-05-27 | 西北核技术研究所 | Device for measuring high-energy laser energy |
| CN103389157B (en) * | 2013-07-26 | 2015-05-20 | 西北核技术研究所 | High-energy laser beam expanding and absorbing device |
| CN103398785B (en) * | 2013-07-26 | 2015-10-28 | 西北核技术研究所 | Based on the energy measurement of high energy laser measurement mechanism of rotary absorber |
| CN103630236B (en) * | 2013-12-11 | 2015-12-02 | 中国工程物理研究院应用电子学研究所 | A kind of conical cavity type high-energy laser total-absorption energy meter |
| CN204085691U (en) * | 2014-09-04 | 2015-01-07 | 中国工程物理研究院应用电子学研究所 | A kind of High Energy Laser Energy Meter calibrating installation |
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