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A method for omnidirectional solid-state wind measurement on a train

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

Active Publication Date: 2018-03-30
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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  • A method for omnidirectional solid-state wind measurement on a train
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  • A method for omnidirectional solid-state wind measurement on a train

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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, referred to as "pressure sensing holes", the front side of the pressure sensing hole is equipped with a dust filter, and the rear end of the 5 pressure sensing holes is combined into a pressure chamber;

[0036] The pressure ch...

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Abstract

The invention belongs to a method for wind measurement, in particular to a method for omnidirectional solid-state wind measurement carried by trains. Based on a train-mounted omnidirectional solid-state wind measuring device, the solid-state wind measuring device developed by the present invention and the method used thereof have changed the pressure difference measurement method of the traditional solid-state wind measuring sensor from the measurement principle, and overcome the problems caused by the structural shape. Due to the increase of the internal space, the necessary anti-harsh environment components can be added, and the wind, sand and rain resistance performance of the product can be increased. The selection of electronic components that meet the requirements of -45~70°C meets the requirements of solid-state testing. The high and low temperature environment of the wind device. In terms of measurement range and measurement accuracy, it is not lower than the existing solid-state sensor indicators, and it is a method of using a special sensor for dynamic wind measurement on a train.

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 th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P5/14G01P1/00
Inventor 孔宪书于卫东乔倩郝奎陈厚嫦何德华
Owner TAIYUAN AERO INSTR
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