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A thermoelectric conversion sensor applied to 110ghz~170ghz frequency microcalorimeter

A technology of thermoelectric conversion and microcalorimeter, which is applied to calorimeters, electric power measurement by thermal method, heat measurement, etc., can solve the problems of limiting power reference establishment, etc., and achieve good broadband matching, small standing wave ratio, DC The effect of high substitution efficiency

Active Publication Date: 2018-07-03
NAT INST OF METROLOGY CHINA
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Problems solved by technology

In the frequency band higher than 110GHz, due to the limitations of materials and manufacturing processes, the current thermoelectric conversion power sensor technology is still blank in the world, which limits the establishment of power benchmarks

Method used

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  • A thermoelectric conversion sensor applied to 110ghz~170ghz frequency microcalorimeter
  • A thermoelectric conversion sensor applied to 110ghz~170ghz frequency microcalorimeter
  • A thermoelectric conversion sensor applied to 110ghz~170ghz frequency microcalorimeter

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Embodiment Construction

[0037] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0038] see figure 1 , Figure 1A , Figure 1B As shown, the present invention designs a thermoelectric conversion sensor applied to a 110GHz-170GHz frequency microcalorimeter. The thermoelectric conversion sensor includes a wedge-shaped absorber 1, a platinum thermistor 2, an A partition 3, and a B partition 4. , End cover 5, A housing 6, B housing 7 and waveguide flange 8, A partition 3 and B partition 4 have the same structure, and A housing 6 and B housing 7 have the same structure. Among them, the wedge absorber 1 , the end cover 5 , the A housing 6 , the B housing 7 and the waveguide flange 8 form a matching load. The platinum thermistor 2, the A spacer 3 and the B spacer 4 constitute an intermediate body. The intermediate body is installed in the gap of the wedge-shaped absorber 1 , the wedge-shaped absorber 1 is installed on the wav...

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Abstract

The invention discloses a thermoelectric conversion sensor applied to a micro calorimeter in the 110GHz-170GHz frequency. The sensor comprises a wedge-form wave absorber (1), a platinum thermistor (2), separator plates (3 and 4), an end cap (5), casings (6 and 7) and a waveguide flange (8), the platinum thermistor (2) is prepared in the separator plates (3 and 4) to form an intermediate, a gap of the wedge-form wave absorber (1) accommodates the intermediate, the wedge-form wave absorber (1) is mounted on the waveguide flange (8), the end cap (5) and the casings (6 and 7) are arranged outside the wedge-form wave absorber (1). The thermoelectric conversion sensor uses DC signals to represent Terahertz power magnetide. Load matching heat metering replaces traditional thermoelectric conversion, Terahertz 110GHz to 170GHz power is transmitted to a matched load via the waveguide flange (8), the broadband matching performance is high, the wave absorption performance is high, and the standing-wave ratio is low.

Description

technical field [0001] The invention relates to the technical field of microwave power reference measurement, and more particularly refers to a thermoelectric conversion sensor applied to a 110GHz-170GHz frequency microcalorimeter. Background technique [0002] The application number is 201110372129.1, the application date is November 21, 2011, and the title of the invention is "microcalorimeter, power base system and measurement method using the microcalorimeter". The specification and drawings of this document disclose the structure of the microcalorimeter, which at least includes a thermopile, a working power seat and a reference power seat. [0003] In the past two decades, terahertz (100GHz to 10THz) science and technology have flourished globally, and important research results have been achieved, and their applications have been extended to spectrum, imaging, communication, radar, astronomy, meteorology, national defense, aerospace and other fields. At the same time,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K17/00G01R21/02
CPCG01K17/006G01R21/02
Inventor 崔孝海袁文泽马超李勇赵巍贾超海兴芳
Owner NAT INST OF METROLOGY CHINA
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