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Immersive total-absorption high-energy laser power energy meter

A high-energy laser, power energy technology, applied in optical radiation measurement, measurement devices, photometry and other directions, can solve the problem of energy meter resistance to strong laser damage, etc., to achieve the effect of improving measurement capability and measurement accuracy

Active Publication Date: 2018-11-16
INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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AI Technical Summary

Problems solved by technology

[0003] In order to realize the power and energy measurement of high-energy lasers, solve the problem of the energy meter’s resistance to strong laser damage, break through the limitations of the energy meter in the selection of the measured laser wavelength, and improve the accuracy of energy measurement, the invention provides an immersion type total absorption High Energy Laser Power Energy Meter

Method used

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  • Immersive total-absorption high-energy laser power energy meter

Examples

Experimental program
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Embodiment 1

[0031] figure 1 It is a structural schematic diagram of the immersion type total absorption high-energy laser power energy meter of the present invention, Figure 2a It is a schematic diagram of the structure of the absorption cavity provided with a single-layer solid absorption plate in the present invention, Figure 3a It is a schematic diagram of the structure of a single-layer solid absorption board in the present invention, Figure 4a It is a structural schematic diagram of the temperature field homogenizer in the present invention, Figure 4b It is a structural schematic diagram of the homogenizing sheet of the temperature field homogenizer in the present invention, Figure 5 It is a structural schematic diagram of the flow field rectifier in the present invention, Figure 6 It is a structural schematic diagram of the pyroelectric sensor for measuring water flow temperature in the present invention. exist Figure 1 to Figure 6 Among them, an immersion-type full-abso...

Embodiment 2

[0042] The structure of this embodiment is the same as that of Embodiment 1, in Figure 1~Figure 6 Among them, the difference is that the absorbing chamber 1 is provided with a combined structure of a single-layer solid absorbing plate 14 and a mesh-type solid absorbing plate 16, as shown in Figure 2(b), the single-layer solid absorbing plate 14 is set On one side of the absorption chamber 1, and arranged parallel to the window optical mirror 15 of the absorption chamber 1, the sieve-type solid absorption plate 16 is arranged in parallel between the single-layer solid absorption plate 14 and the window optical mirror 15, and the sieve-type solid There is a distance between the absorbing plate 16 and the window optical mirror 15, and the distance between the two is adjusted according to the wavelength of the laser light to be measured. Both the single-layer solid absorption plate 14 and the mesh-type solid absorption plate 16 are completely immersed in the water fluid in the ab...

Embodiment 3

[0048] The structure of this embodiment is the same as that of Embodiment 2, except that the material of the sieve-type solid absorption plate 16 is duralumin, and the surface treatment of the sieve-type solid absorption plate 16 is sprayed with black ceramic material.

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Abstract

The invention discloses an immersive total-absorption high-energy laser power energy meter. The energy meter comprises an absorption chamber, a temperature field homogenizer, a current temperature measuring sensor, a housing, a flowmeter, a signal processing system, an electric signal leading wire, a current input and output pipeline, an absorption chamber fixing support, a data acquisition circuit module, a flow field rectifier, a window optical lens, a solid absorption flat plate and a sieve aperture type solid absorption plate. According to the energy meter, through an immersive structuraldesign of the absorption chamber, water fluid and the solid absorption plate immersed in the current are regarded as absorption media of laser together, advantages of a current absorption type energymeter and a solid cavity type energy meter are effectively combined, the restriction of a strong laser damage resistant threshold of an absorbing body material is broken through, the problem of universality of the high-energy laser power energy meter for laser sources of different central wavelengths is solved in an emphasized manner, and the test capability and the measuring accuracy of high-power and high-energy laser are substantially improved by employing means including the design of the temperature field homogenizer, the accurate temperature measurement technology and the specific heat non-linear compensation.

Description

technical field [0001] The invention belongs to the field of high-energy laser power and energy measurement, and in particular relates to an immersion-type total absorption high-energy laser power energy meter, which is suitable for high-energy laser power and energy total absorption measurement. Background technique [0002] Power energy is one of the most critical technical indicators of high-energy lasers, and the measurement of high-energy laser power energy can provide the most important reference for index verification and system performance evaluation in the laser development process. With the rapid development of high-energy laser technology and the wide application of high-energy lasers in the fields of national defense, civil and industrial production, the power and energy of lasers are getting higher and higher, and the power and energy measurement capabilities of high-energy laser power energy meters are proposed. higher requirement. Especially for the high-ener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J1/42
CPCG01J1/4257
Inventor 常艳魏继锋解平雷德川周文超周山胡晓阳何均章黄德权沙子杰蒋志雄吴聪聪
Owner INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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