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Conical cavity type high-energy laser total-absorption energy meter

A technology of high-energy laser and energy meter, which is applied in the direction of photometry using electric radiation detectors, can solve problems such as the impact of high-energy laser measurement accuracy, and achieve the effects of improving testing capabilities, improving measurement accuracy, and reducing escaped energy

Active Publication Date: 2014-03-12
INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the influence of these factors is not controlled and compensated, it will have a serious impact on the accuracy of high-energy laser energy measurement

Method used

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  • Conical cavity type high-energy laser total-absorption energy meter
  • Conical cavity type high-energy laser total-absorption energy meter
  • Conical cavity type high-energy laser total-absorption energy meter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] figure 1 It is a schematic diagram of the structure of the cone cavity type high-energy laser total absorption energy meter of the present invention, figure 2 Is a schematic diagram of the insulator structure in the present invention, image 3 It is a schematic diagram of the structure of the thermocouple sensor in the present invention. FIG. 4 is a schematic diagram of the arrangement of counterbores on the absorber in the present invention. FIG. 4(a) is a sectional view, FIG. 4(b) is a side view, and FIG. 5 It is a schematic diagram of the structure of the V-groove of the absorbent body in the present invention. Fig. 5(a) is a side view and Fig. 5(b) is a cross-sectional view.

[0026] in figure 1 ~ In Figure 5, the cone-cavity high-energy laser total absorption energy meter of the present invention includes an absorber 1, a thermocouple sensor 3, an absorber holder, a cylindrical insulator 2, a data acquisition system 6, and a housing 5; The absorber support includes...

Embodiment 2

[0038] The structure of this embodiment is the same as that of embodiment 1, except that, in this embodiment, the number of the V-shaped grooves is 100, and the included angle θ of the V-shaped grooves is 60°. The counterbores provided on the absorber 1 are arranged at equal distances along the direction of the generatrix of the cone and perpendicular to the direction of the generatrix, and the distance between any two counterbores in the direction of the generatrix of the cone is equal to 6% of the length of the generatrix of the cone of the absorber. . The reflecting plate is made of brass material, and the surface of the brass material is plated with gold.

[0039] Fifteen sets of thermocouple sensors are equidistantly arranged in the direction of the busbar of the absorber cone. The diameter of the sheath of the thermocouple sensor is 0.5mm smaller than the diameter of the counterbore on the absorber, and the length of the sheath of the thermocouple sensor is 1cm longer than...

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Abstract

The invention provides a conical cavity type high-energy laser total-absorption energy meter. The energy meter comprises an absorber, a thermocouple sensor, an absorber support, a barrel-shaped insulator, a data acquiring system and a shell, wherein the absorber is made of a high-purity graphite material and has a cone structure; a conical hollow cavity is formed in the absorber; the absorber support is fixedly connected with the shell in a threaded manner; the middle and the bottom of a cone of the absorber are arranged on the support; the insulator is arranged in the shell; the thermocouple sensor is adhered to counter bores in the surface of the absorber; the distance between the bottom of each counter bore in the absorber and the outer surface of the absorber is 40% of the thickness of the wall of the absorber; the counter bores are equidistantly formed along the cone busbar direction and the direction perpendicular to a busbar; and the distance between two optional counter bores along the cone busbar direction is smaller than the length of the cone busbar of the absorber by 10%. By using the conical cavity type high-energy laser total-absorption energy meter, the high-energy laser energy measuring precision can be obviously improved; and the testing capability of the high-energy laser total-absorption energy meter is improved.

Description

Technical field [0001] The present invention is a high -energy laser energy measurement field. It specifically involves a cone cavity -type high -energy laser full absorption energy meter and is suitable for high -energy laser energy measurement. Background technique [0002] There are two main methods for high -energy laser energy measurement: the first method uses a spectacular mirror to separate the sampling, and then uses a low medium -volume power energy measurement device to measure the sampled laser energy. FinallyCalculating the total laser energy energy; the second method directly uses the energy measurement device to measure the total laser energy. It requires the measurement device to absorb almost all laser energy. This type of device is usually called a full -absorbing type measurement device.In the first method, indirect sample measurement methods are adopted, and the spectrophot ratio is usually prone to change under the action of strong light, so the measurement a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J1/42
Inventor 范国滨张卫魏继锋周山常艳卢飞蒋志雄彭勇周文超田英华黄德权沙子杰胡晓阳
Owner INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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