Independent heat-circuit thermosensitive terahertz power probe
A power probe and terahertz technology, which is applied in the direction of electric power measurement by thermal method, and can solve the problems of unsuitable total power measurement and evaluation of terahertz sources.
Active Publication Date: 2014-09-10
山东微波电真空技术有限公司
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Problems solved by technology
No matter what technology is used, most of the measurements are carried out for the terahertz wave in a certain area in the space, so the results obtained are not total, so it is not suitable for terahertz return wave tube, terahertz traveling wave tube Measure and evaluate the total power of the terahertz source
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[0052] According to the function, the power sensor is divided into three parts: the terahertz waveguide (including the adapter), the support body functional block, the power sensitive body, and the heat sink base. . Among them, the terahertz waveguide (including adapter) and support body functional block is composed of terahertz waveguide (including adapter) and support body components, and the power sensitive body is composed of terahertz power absorber, thermal circuit support body, two heat-sensitive Sensor and heat sink base. The function of the terahertz waveguide (including the adapter) and its supporting body is mainly to introduce terahertz energy; the function of the power sensitive body is to measure the heat flow power converted from the terahertz wave energy; The heat absorber of the sensitive body, on the other hand, serves as the installation base of the entire power sensor.
[0053] In the power sensitive body, the terahertz power absorber and the heat circuit...
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The invention discloses an independent heat-circuit thermosensitive terahertz power probe and relates to the technology of electromagnetic wave power measuring. The independent heat-circuit thermosensitive electromagnetic wave power probe comprises a terahertz waveguide, a power sensitive body and a heat sink base, wherein the power sensitive body is a core part and consists of a terahertz power absorber, a heat-circuit support and two thermosenstive sensors. Terahertz electromagnetic waves enter the terahertz waveguide through a flange or an adapter and are absorbed by the terahertz power absorber in the terahertz waveguide and converted into heat, the terahertz power absorber is heated while the heat is transmitted to the heat sink base through the heat-circuit support, so that the two thermosensitive sensors at two different positions on the heat-circuit support can measure temperature difference of the positions. On the condition of heat balance, the temperature difference and the terahertz electromagnetic wave power are in direct ratio. The power probe is calibrated in a manner of injecting electric power into the first thermosensitive sensor. The independent heat-circuit thermosenstive terahertz power probe solves the problem about power measuring of terahertz waves.
Description
technical field [0001] The invention relates to the technical field of electromagnetic wave power measurement, and relates to a heat-sensitive terahertz power probe with a single thermal circuit. Background technique [0002] The power measurement of electromagnetic waves is the basis of all electromagnetic wave applications. For example, the radar function is realized by comparing and detecting the difference between the emitted electromagnetic wave and the reflected electromagnetic wave of the target. This detection includes power measurement. In fact, any flaw detection or imaging application requires this inspection. In addition, the development process of all electromagnetic equipment and its performance evaluation require this measurement. [0003] In the past ten years, there has been an upsurge of research on THz technology both at home and abroad, and at the same time there has been a huge application demand. The first application is in the field of astronomy. Si...
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IPC IPC(8): G01R21/02
Inventor 王自成赵建东李海强徐安玉董芳刘韦黄明光郝保良
Owner 山东微波电真空技术有限公司