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Fluid flow velocity measuring device based on terahertz high-speed echo effect

A technology of fluid flow velocity and echo effect, applied in fluid velocity measurement, measuring device, velocity/acceleration/impact measurement, etc., can solve the problem of low temperature detection accuracy of high-temperature objects, and achieve strong penetrating effect

Active Publication Date: 2021-06-15
CENT SOUTH UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The fluid flow rate measurement device based on the terahertz high-speed echo effect provided by the present invention solves the technical problem of low detection accuracy of the temperature of high-temperature objects in the existing non-contact temperature measurement device in a complex and harsh environment

Method used

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  • Fluid flow velocity measuring device based on terahertz high-speed echo effect
  • Fluid flow velocity measuring device based on terahertz high-speed echo effect
  • Fluid flow velocity measuring device based on terahertz high-speed echo effect

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Embodiment 1

[0041] The fluid flow velocity measurement device based on the terahertz high-speed echo effect provided by Embodiment 1 of the present invention includes a terahertz echo acquisition module and a signal processing module connected to the terahertz echo acquisition module, wherein:

[0042] The terahertz echo acquisition module is used to generate the source signal and the reference signal, and detect the terahertz echo emitted by the source signal through the fluid;

[0043] The signal processing module is used to obtain the fluid flow velocity according to the terahertz echo and the reference signal.

[0044] The fluid velocity measurement device based on the terahertz high-speed echo effect provided by the present invention includes a terahertz echo acquisition module and a signal processing module connected to the terahertz echo acquisition module, wherein the terahertz echo acquisition module is used to generate a source signal and reference signal, and detect the teraher...

Embodiment 2

[0065] like figure 1 As shown, the fluid flow velocity measurement device based on the terahertz high-speed echo effect in the second embodiment of the present invention is mainly composed of four dust-proof and heat-insulating outer covers M12, a tripod bracket M13, a terahertz echo flow velocity detection core device M14, and a servo pan / tilt M15. It consists of parts, and the functions of each part are described as follows:

[0066] The dust-proof and heat-insulating cover M12 uses a stainless steel shell and a double-layer shell structure with heat-insulating coating. The outer stainless steel shell can effectively reduce the erosion of the equipment due to water vapor and corrosive gases during use. The inner heat-insulating coating adopts high-temperature The thermal insulation coating can effectively reduce the excessive equipment temperature caused by high-temperature radiation detection equipment. In addition, the detection port at the front of the equipment is design...

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Abstract

The invention discloses a fluid flow velocity measuring device based on a terahertz high-speed echo effect. The device comprises a terahertz echo acquisition module and a signal processing module connected with the terahertz echo acquisition module, the terahertz echo acquisition module is used for generating a source signal and a reference signal, and detecting terahertz echoes emitted by the source signal through fluid, and the signal processing module is used for obtaining the fluid flow velocity according to the terahertz echoes and the reference signals. The technical problem that an existing non-contact fluid flow velocity device is low in fluid flow velocity detection precision in a complex and severe environment is solved, the characteristic of high penetrability of terahertz waves is ingeniously utilized, and it is guaranteed that terahertz signals can be received in the complex environment, so the flow velocity of the measured fluid can be accurately measured; and meanwhile, the device has the non-contact characteristic, and has important significance for measuring the flow velocity of the fluid in a complex environment.

Description

technical field [0001] The invention mainly relates to the technical field of temperature measurement, in particular to a fluid velocity temperature measurement device based on the terahertz high-speed echo effect. Background technique [0002] THz (TeraHertz, TeraHertz) usually refers to electromagnetic radiation with a frequency in the range of 0.1-10THz. It is located between microwaves and infrared rays on the electromagnetic spectrum. It is a special area transitioning from electronics to photonics on the electromagnetic spectrum. The transitional region from classical theory to microscopic quantum theory. In the electromagnetic spectrum, the infrared and microwave technologies on both sides of the terahertz band are very mature, but the terahertz wave technology in the transitional spectrum is not perfect, mainly because this frequency band is neither completely suitable for optical theory, nor Not entirely suitable for microwave theory to study, forming the so-called...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P5/26
CPCG01P5/26
Inventor 陈致蓬桂卫华阳春华
Owner CENT SOUTH UNIV
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