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A thz echo high temperature temperature measuring device

A temperature measurement, high temperature technology, applied in the field of temperature measurement, can solve the problem of low temperature detection accuracy of high temperature objects, and achieve the effect of strong penetration

Active Publication Date: 2022-03-29
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The THz echo high-temperature temperature measurement device provided by the 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 complex and harsh environments

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  • A thz echo high temperature temperature measuring device

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Experimental program
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Effect test

Embodiment 1

[0052] The THz echo high-temperature temperature measurement device provided in Embodiment 1 of the present invention includes a THz signal acquisition and processing FPGA module and a THz signal conversion and processing GPGPU module connected to the THz signal acquisition and processing FPGA module, wherein:

[0053] THz signal acquisition and processing FPGA module, used to acquire THz reference signal time domain spectrum, THz echo signal time domain spectrum and the distance between the measured high temperature object and THz echo high temperature temperature measuring device;

[0054] The THz signal conversion and processing GPGPU module is used to obtain the temperature value of the measured high-temperature object according to the time-domain spectrum of the THz reference signal, the time-domain spectrum of the THz echo signal and the distance.

[0055] The THz echo high-temperature temperature measurement device provided by the present invention includes a THz signal ...

Embodiment 2

[0057] Such as figure 1 As shown, the THz echo high-temperature temperature measuring device provided by Embodiment 2 of the present invention is composed of a measured high-temperature object M0, a THz wave acquisition optical lens M1, a THz quantum cascade laser QCL M2, a THz quantum well detector QWP M3, a laser radar measuring It consists of distance meter M4, signal amplifier M5, source signal preamplifier M6, lock-in amplifier LIA M7, THz signal acquisition and processing unit M8, THz signal conversion and processing GPGPU unit M9, host computer M10 and other parts. Its specific workflow is as follows: First, the THz wave signal of a specified THz frequency is generated by the THz quantum cascade laser QCL M2, and it is divided into two identical parts of the signal, one of which is transmitted through the THz wave acquisition optical lens M1 and focused to the The high-temperature measurement object M0, while the other part enters the signal amplifier M5 as a THz refere...

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Abstract

The invention discloses a THz echo high-temperature temperature measuring device, comprising a THz signal acquisition and processing FPGA module and a THz signal conversion and processing GPGPU module connected with the THz signal acquisition and processing FPGA module, wherein the THz signal acquisition and processing FPGA module is used for acquisition THz reference signal time-domain spectrum, THz echo signal time-domain spectrum and the distance between the measured high-temperature object and THz echo high-temperature temperature measuring device, THz signal conversion and processing GPGPU module, used for THz reference signal time-domain spectrum, The temperature value of the measured high-temperature object is obtained from the time-domain spectrum of the THz echo signal and the distance, which solves the technical problem of low detection accuracy of the temperature of the high-temperature object in the complex and harsh environment of the existing non-contact temperature measurement device. With the characteristics of strong permeability, it can also receive terahertz signals in complex environments, so as to accurately measure the temperature of the measured high-temperature source, and has non-contact characteristics, which is of great significance for the temperature measurement of high-temperature objects in complex environments .

Description

technical field [0001] The invention mainly relates to the technical field of temperature measurement, in particular to a THz (TeraHertz) THz echo high-temperature temperature measuring device. Background technique [0002] The THz frequency band (0.1-10THz) is the last electromagnetic radiation region that has great scientific and practical value but has not been fully understood and utilized. Since the THz frequency range is in the intersection of electronics and photonics, and the wavelength scale is in the transition zone from macroscopic classical theory to microscopic quantum theory, its long-wave direction overlaps with millimeter waves, and its short-wave direction overlaps with infrared rays. This results in that the THz wave in this frequency range not only has the strong penetrability of microwaves but also has the characteristics of infrared temperature measurement. Utilizing the unique characteristics of THz waves, the development of high-temperature temperatur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/00G01S17/08
CPCG01J5/00G01S17/08
Inventor 陈致蓬桂卫华阳春华
Owner CENT SOUTH UNIV