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Calibration method and system of wind pressure sensor

A wind pressure sensor, wind pressure technology, applied in instruments, measuring fluid pressure, measuring devices, etc., can solve the problems of many physical quantities and high costs

Active Publication Date: 2018-03-06
CHINA ELECTRIC POWER RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are too many physical quantities that need to be observed simultaneously, and the cost of purchasing instruments and carrying out actual measurements is too high

Method used

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  • Calibration method and system of wind pressure sensor
  • Calibration method and system of wind pressure sensor
  • Calibration method and system of wind pressure sensor

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Embodiment Construction

[0026] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0027] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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Abstract

The invention provides a calibration method and system for a wind pressure sensor. The measured value of the tested wind pressure sensor is converted into a comparable wind speed value through a conversion formula, deviation calculation is carried out on the measured wind speed value of a calibrated anemoscope, the reliability of the tested wind pressure sensor is verified, the factors such as theair density, the atmospheric temperature and the humidity are combined during the calibration, and the accuracy of the experiment is further improved. The method comprises the steps of erecting the anemoscope and the tested wind pressure sensor, measuring the air density in the wind tunnel, and converting the wind pressure data into wind speed data, calculating the average wind speed value and the fluctuating wind speed value of the wind speed sequence obtained through the measurement of the anemoscope and the tested device, performing the deviation calculation on the result to determine theaccuracy of the tested sensor.

Description

technical field [0001] The invention relates to the field of wind environment testing of transmission lines, and more particularly, to a calibration method and system for a wind pressure sensor. Background technique [0002] With the continuous development of hydropower in Southwest China, more and more transmission lines have been built in high-altitude areas such as Tibet and Sichuan. The above-mentioned areas are affected by the increase in altitude, and the air density is greatly reduced. If the wind pressure is still calculated according to the plain air density, the design wind load of the transmission line will be overestimated, and the construction cost of the line will increase. The method of simultaneous observation of wind speed, air pressure, temperature, and humidity, supplemented by the corresponding air density calculation formula, can realize the correction of air density. However, there are too many physical quantities that need to be observed simultaneousl...

Claims

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Application Information

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IPC IPC(8): G01L27/00
CPCG01L27/002G01L27/005
Inventor 张宏杰王旭明杨风利李亚伟张星海李正周纬邢海军
Owner CHINA ELECTRIC POWER RES INST