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Laser calibration device for large heat flow

A calibration device and laser technology, applied in the field of sensor calibration, can solve the problems of incapability of dynamic heat flow calibration, inability to meet the needs of heat flow calibration, etc., and achieve the effects of improving test efficiency, output spot concentration, and accuracy.

Active Publication Date: 2018-04-13
48TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

The problem with this device is that it can only perform up to 2MW / m 2 The heat flow calibration can not meet the heat flow calibration requirements of higher range, and can not perform dynamic heat flow calibration

Method used

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  • Laser calibration device for large heat flow
  • Laser calibration device for large heat flow
  • Laser calibration device for large heat flow

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] Such as Figure 1 to Figure 3 As shown, the large heat flux laser calibration device of this embodiment includes a laser unit 1, and vacuum chambers 2 are symmetrically installed on both sides of the laser unit 1, wherein the vacuum chamber 2 on one side is used to install a standard heat flux sensor 3, and the other The vacuum chamber 2 on the side is used to install the experimental heat flow sensor 4; the laser unit 1 is used to irradiate laser light to the standard heat flow sensor 3 and the experimental heat flow sensor 4 on both sides to provide the same heat flow environment. The large heat flow laser calibration device of the present invention adopts the laser unit 1 (such as a laser) as a heat source, has concentrated output light spots, small energy loss and good stability, can perform high heat flow calibration and improves th...

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Abstract

The invention discloses a laser calibration device for large heat flow, including a laser unit. Vacuum chambers are symmetrically installed on the two sides of the laser unit. The vacuum chamber on one side is used for installing a standard heat flow sensor, and the vacuum chamber on the other side is used for installing an experimental heat flow sensor. The laser unit is used for irradiating thestandard heat flow sensor and the experimental heat flow sensor on the two sides thereof with laser to provide the same heat flow environment. The laser calibration device for large heat flow of the invention has the advantages as follows: large heat flow can be calibrated; the calibration efficiency is high; and the like.

Description

technical field [0001] The invention mainly relates to the technical field of sensor calibration, in particular to a large heat flow laser calibration device. Background technique [0002] Heat flow calibration is widely used in thermal protection system design of aerospace weapons and equipment, aerodynamic thermal shape design and thermal engineering kiln heat transfer design. The application of heat flow calibration tends to be the actual working conditions of large heat flow dynamic calibration. The Heat Flux Sensor Calibration Set utilizes a high temperature graphite plate for heat flow calibration in air. In this device, both sides of the specially processed high-temperature graphite plate can provide symmetrical heat flow. The standard heat flow sensor and the experimental heat flow sensor are placed in symmetrical positions. The calibration of the experimental heat flow sensor is completed by comparing the signal output of the standard heat flow sensor and the experi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K19/00
Inventor 白庆星张龙赐何峰曹勇全陈伟谢明
Owner 48TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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