Special environment wind field sensor calibration method and calibration device

A calibration method and calibration device technology, applied in the direction of measuring devices, instruments, speed/acceleration/shock measurement, etc.

Pending Publication Date: 2022-02-15
BEIJING RES INST OF TELEMETRY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem of high-precision calibration of wind field parameters under special conditions, and proposes a calibration method and calibration device for wind field sensors in special environments, so as to realize the calibration of wind field sensors under low pressure and arbitrary atmosphere conditions

Method used

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  • Special environment wind field sensor calibration method and calibration device
  • Special environment wind field sensor calibration method and calibration device
  • Special environment wind field sensor calibration method and calibration device

Examples

Experimental program
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Effect test

Embodiment 1

[0058] Such as figure 1 As shown, a calibration device for a wind field sensor in a special environment includes an airtight chamber 1 and a sliding calibration system 2 partially arranged inside the airtight chamber 1 and partly arranged outside the airtight chamber 1, a temperature testing system 3, and an air pressure atmosphere adjustment System 4; sliding calibration system 2 is used to drive the wind field sensor to slide and rotate inside the closed chamber 1 to measure wind speed and direction; temperature test system 3 is used to test the temperature environment of the wind field sensor; Adjust the air pressure environment of the wind field sensor;

[0059] The sliding calibration system 2 includes a precision slide rail 21 arranged at the bottom of the closed chamber 1, a slide table 22 arranged on the upper part of the precision slide rail 21 that can move along the direction of the precision slide rail 21, an electric turntable 23 arranged on the top of the slide t...

Embodiment 2

[0081] Such as figure 1 As shown, a special environment wind field sensor calibration device, the main part of the experimental device is a cuboid airtight chamber 1, the inner cavity length, width and height of the airtight chamber 1 are 4m, 0.5m and 0.5m respectively, the airtight chamber 1. The outside is reinforced with channel steel. The bottom of the airtight chamber 1 is equipped with a synchronous belt type linear precision slide rail 21, and an electric turntable 23 is installed on the slide table 22, which can move along the slide rail 21. The wind field sensor is installed on the top of the electric turntable 23 through four vertical metal round rods, and can carry out 360 ° plane rotation with the electric turntable 23; The slider 25 and the wind field sensor signal leads 26 are divided into multiple strands, which are respectively fixed on a small slider 25. The movement of the wind field sensor on the precision slide rail 21 can be pulled by the small slider 25 t...

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Abstract

The invention provides a special environment wind field sensor calibration method and a calibration device. The calibration device comprises a closed chamber, and a sliding calibration system, a temperature testing system and an air pressure atmosphere adjusting system which are partially arranged inside the closed chamber and partially arranged outside the closed chamber. The device is used for calibrating the characteristic parameters of the wind field sensor under low air pressure and a special atmosphere, the wind field sensor is installed above the electric rotating disc and can rotate in a 360-degree plane along with the electric rotating disc, the air pressure and atmosphere conditions in the closed chamber can be adjusted, the whole closed chamber can tolerate the temperature range of-20 DEG C to 40 DEG C, and when the closed chamber is placed in an incubator, a variable-temperature environment can be achieved in the closed chamber. By adopting the method, a calibration environment can be provided for wind field measurement under special conditions such as a variable temperature, low air pressure and variable atmosphere conditions.

Description

technical field [0001] The invention relates to the technical field of measurement and testing, in particular to a calibration method and a calibration device for a wind field sensor in a special environment. Background technique [0002] In recent years, with the development of aerospace technology in the fields of domestic near space exploration and Mars exploration, there is a demand for the measurement of wind speed and direction parameters under low pressure and special atmosphere conditions. However, the current domestic conventional wind speed and direction calibration equipment cannot meet the high-precision calibration requirements of wind field parameters under special conditions, which restricts the development process of special sensors in this field. Contents of the invention [0003] The present invention aims to solve the problem of high-precision calibration of wind field parameters under special conditions, and proposes a calibration method and calibration...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P21/00G01P21/02
CPCG01P21/00G01P21/025
Inventor 张雷博彭泳卿方静刘希宝蔡治国冯红亮黄晓瑞王丰刘建华
Owner BEIJING RES INST OF TELEMETRY
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