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Method for train-borne omnidirectional solid-state wind measuring

A technology of train and wind measurement, applied in the field of wind measurement, which can solve the problems of solid-state sensor wind measurement error, pressure difference fluctuation, error increase, etc., and achieve the effect of increasing wind and sand resistance

Active Publication Date: 2015-07-22
TAIYUAN AERO INSTR +1
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Problems solved by technology

This technical solution can be applied in a good environment. Since the hole is opened on the cylindrical surface of the pressure hole, and the sensor is installed inside the cylinder, the larger the diameter of the cylinder, the greater the turbulence caused by the leeward side of the cylinder. Feeling the turbulence of the pressure value in the direction of 180° will bring fluctuations to the pressure difference value, and the error will increase
Since the inside of the cylinder is not only installed with sensors but also with various anti-environmental devices, in this case the wind measurement of the solid-state sensor will cause a large error

Method used

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  • Method for train-borne omnidirectional solid-state wind measuring
  • Method for train-borne omnidirectional solid-state wind measuring
  • Method for train-borne omnidirectional solid-state wind measuring

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Embodiment Construction

[0034] A method for vehicle-mounted omnidirectional solid-state wind measurement, based on a device for vehicle-mounted omnidirectional solid-state wind measurement, comprising a mounting plate 4, a bottom frame 3, a sensing unit 2 and a top cover 1, and the bottom frame 3 is installed The board 4 is installed on the train, the upper part of the bottom frame 3 is provided with a sensing unit 2, and the top of the sensing unit 2 is provided with a top cover 1;

[0035] The sensing unit 2 is 8 sensing discs 5 evenly distributed along the peripheral side, and the front edge of the sensing disc 5 has a group of holes respectively on the same section at the cross orthogonal and 45° orthogonal positions, each group of holes There are 5 pressure sensing holes inside, the front side of the pressure sensing hole is equipped with a dust-proof net, and the rear end of the 5 pressure sensing holes is combined into a pressure chamber;

[0036] The pressure chamber on the rear side of the s...

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Abstract

The invention belongs to a wind measuring method, and particularly relates to a method for train-borne omnidirectional solid-state wind measuring. The method is based on a device for train-borne omnidirectional solid-state wind measuring. The solid-state wind measuring device and the solid-state wind measuring method developed by the invention change the differential measuring method of a traditional solid-state wind sensor in measuring principle, and overcome the influence of turbulent flow caused by structure appearance. Due to the increase of the internal space, necessary components resisting the influence of bad environments can be increased, so that the windblown sand resistance and rain resistance of products are increased. Electronic components applicable to -45-70 DEG C are chosen, so that the requirement for using the solid-state wind measuring device in high / low-temperature environments is met. The measurement range and measurement precision are not lower than the existing solid-state sensor indicators. The method is a method used in a special sensor for train-borne dynamic wind measuring.

Description

technical field [0001] The invention belongs to a method for wind measurement, in particular to a method for omnidirectional solid-state wind measurement carried by trains. Background technique [0002] As far as we know, there is not a mature product for the current on-board wind measurement products on the train. The main problem of the general wind measurement sensors such as: wind cup type, hot wire type and other wind measurement sensors is that the anti-environmental influence is insufficient, and it cannot meet the needs of trains in harsh environments. environment requirements. Solid-state wind sensors have precedents in other fields, but they use the front and rear pressure holes connected to the differential pressure sensor, and calculate the wind speed and direction by feeling the pressure difference in the 180° direction. This technical solution can be applied in a good environment. Since the hole is opened on the cylindrical surface of the pressure hole, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P5/14G01P1/00
Inventor 孔宪书于卫东乔倩郝奎
Owner TAIYUAN AERO INSTR
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