Non-contact nuclear heat source power measurement sensitive device

A power measurement, non-contact technology, applied in the direction of measuring devices, measuring heat, calorimeters, etc., can solve the problems that are difficult to meet the needs of nuclear heat source power measurement, and achieve the effect of reducing nuclear pollution and simple structure

Inactive Publication Date: 2013-10-02
BEIHANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, the existing heat flow and power measurement technology is difficult to meet the needs of nuclear heat source power measurement

Method used

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  • Non-contact nuclear heat source power measurement sensitive device
  • Non-contact nuclear heat source power measurement sensitive device
  • Non-contact nuclear heat source power measurement sensitive device

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that they are only descriptions of the present invention, not limitations of the present invention.

[0039] figure 1 It is a schematic diagram of the assembly structure of a non-contact nuclear heat source power sensitive device according to an embodiment of the present invention. Such as figure 1 The shown non-contact nuclear heat source power sensitive device includes a constantan sheet 101, a constantan flank 102, a thermal power measurement hole 103, a pure copper water cooling head 201, a sensitive element base 301, a sensitive element top plate 302, a spring compression sleeve 303, and a spring Top bracket 304, heat source top bracket 305, spring 306, upper heat insulation sheet 307A, lower heat insulation sheet 307B, upper heat insulation board 401A, lower heat insulation board 401B, signal measurement bracket 50...

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Abstract

The invention relates to a non-contact nuclear heat source power measurement sensitive device, which is composed of a constantan sheet, constantan side wings, a fine copper water-cooling head, a thermal insulation material and a support structure, wherein the constantan sheet encircles into a cylindrical test hole, the constantan side wings are symmetrically welded at two sides of the constantan sheet respectively, the fine copper water-cooling head is tightly attached to the constantan side wing, and the constantan sheet and the fine copper water-cooling head form a thermocouple. During measurement, a nuclear heat source is placed in the test hole and not contacted with the hole wall; radiant heat exchanged is carried out between the constantan sheet and the nuclear heat source, the fine copper water-cooling head takes heat absorbed by the constantan sheet away, the temperature of a central position of a waist part of the constantan sheet is the highest, and the temperature of a part which is contacted with the fine copper water-cooling head is the lowest. During heat balance, the maximum temperature difference is proportional to the power of the nuclear heat source, and meanwhile, the temperature difference generates a thermoelectric force in the thermocouple, and the thermoelectric force is proportional to the power of the nuclear heat source. The thermal insulation material is used for reducing the heat loss. According to the invention, the constantan sheet is not contacted with the nuclear heat source, the device not only protects the surface state of the nuclear heat source, but also reduces nuclear pollution to the sensitive device; and the structure is simple, and the performance is reliable.

Description

technical field [0001] The invention relates to a non-contact nuclear heat source power measurement sensitive device, which is used for measuring thermal power and heat flow of a columnar heat source, and is especially suitable for measuring the thermal power of a nuclear heat source. Background technique [0002] The nuclear heat source uses its internal radioactive nuclear isotope decay to generate heat. This heat can be used for heating and heat preservation of electronic equipment in an ultra-low temperature environment, and can also be combined with a semiconductor thermoelectric battery to form a nuclear thermoelectric power generation device for power supply of electronic equipment. Due to its simple structure, High reliability, has very broad application prospects. [0003] Accurate measurement of thermal power of nuclear heat source is the premise of realizing the utilization of nuclear heat source. At present, there are three main aspects of thermal power measurem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K17/00
Inventor 李运泽张红生李淼任保国侯旭峰李运华彭磊
Owner BEIHANG UNIV
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