Novel sealed constant-temperature double-load waveguide calorimeter

A calorimeter and dual-load technology, applied in the field of calorimeters, can solve problems such as insufficient frequency range, and achieve good sealing effect, high measurement accuracy, and good impedance matching.

Inactive Publication Date: 2016-03-23
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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Problems solved by technology

[0007] An object of the present invention is to provide a new type of sealed constant temperature double load waveguide calorimeter to solve the problem of insufficient freq

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  • Novel sealed constant-temperature double-load waveguide calorimeter
  • Novel sealed constant-temperature double-load waveguide calorimeter
  • Novel sealed constant-temperature double-load waveguide calorimeter

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[0038] In order to explain the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and drawings. Similar components in the drawings are denoted by the same reference numerals. Those skilled in the art should understand that the content described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0039] Such as figure 1 As shown, the present invention discloses a novel sealed constant temperature dual load waveguide calorimeter. The device includes: a sealed cylinder 1, a sealed cylinder cover 2, an insulating support base 3, a power input terminal 4, a reference terminal 5, and a working insulated waveguide Section 6, reference insulated waveguide section 7, working load 8, reference load 9, thermopile 10, DC heating input and thermopile output terminal 11, sealing cylinder sealing ring 12, power input sealing ring 13, reference terminal s...

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Abstract

Disclosed in the invention is a novel sealed constant-temperature double-load waveguide calorimeter comprising a sealed cylinder, a sealed cylinder cover, a working link, a reference link, a waveguide port, and a thermopile. The working link and the reference link are sealed by sealing rings of the sealed cylinder cover; and the 2-mm standard waveguide port is formed in the sealed cylinder cover at one side of the working link according to the waveguide dimension and is used for inputting a 2-mm-frequency waveguide. The reference link is used for providing a temperature reference for the working link and the working link is used for inputting a direct-current power and a microwave power, thereby changing a thermoelectric force of the thermopile with the temperature change. According to the temperature value of the reference link, a temperature difference thermoelectric force is obtained; and then a microwave power value is obtained by calculation. According to the technical scheme, with the double-load calorimetric technology, the temperature control on the calorimeter is realized by a constant-temperature water tank; and the 2-mm calorimetric power standard is set and the power level is 1mW. A valuation transfer demand of a power parameter in a frequency range of 110GHz to 170GHz can be satisfied.

Description

technical field [0001] The invention relates to a calorimeter. More specifically, it relates to a novel sealed constant temperature double load waveguide calorimeter. Background technique [0002] Power is one of the most basic parameters in the field of microwave and millimeter waves, and it is also an important parameter to characterize the characteristics of microwave and millimeter wave signals. Therefore, the microwave radio standard laboratories of various countries have carried out the research and construction of power standards very early. There are two main ways to implement microwave and millimeter wave low power standards: calorimeter and microcalorimeter. The calorimeter is an instrument for measuring the temperature change after the load absorbs power, and the value of the measured microwave power is obtained according to the difference between the temperature change caused by the DC power and the microwave power. It has the advantages of high measurement ac...

Claims

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Application Information

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IPC IPC(8): G01R21/02
Inventor 张伟伟何巍
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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