Wind Tunnel Wind Velocity Profiler and Its Control Method

A wind speed and profile technology, applied to instruments, using thermal variables to measure fluid speed, measuring devices, etc., can solve problems such as poor sensitivity and accuracy, increased relative error of speed pressure measurement results, loss of speed measurement function, etc., to achieve consistency Good performance, high precision, high long-term stability
CN102262166AInactive Publication Date: 2011-11-30INNER MONGOLIA AGRICULTURAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
INNER MONGOLIA AGRICULTURAL UNIVERSITY
Publication Date
2011-11-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a wind-tunnel wind profiler and a control method thereof. The wind-tunnel wind profiler comprises a data acquisition portion, a wireless data transmission portion and a control processing device. The data acquisition portion comprises a plurality of hot-film probes and a data acquisition card. The wireless data transmission portion comprises a wireless transmitting deviceand a wireless receiving device. The hot-film probes are connected to the data acquisition card. Wind speed signals acquired by the hot-film probes are converted into voltage signals after being calibrated, and then the voltage signals are transmitted to an Analogue-to-Digital (A / D) converter in the data acquisition card, so that the data acquisition card completes the acquisition of the wind speed signals output by the hot-film probes and transmits the wind speed data acquired to the wireless transmitting device; next, the wireless transmitting device transmits the wind speed data received to the wireless receiving device in a wireless way; and the control processing device is connected to the wireless receiving device. The wind-tunnel wind profiler has the characteristics of being simple in structure, feasible in performance, low in cost, convenient for carrying and installation, simple in field wire connection, and flexible and reliable in use.
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Description

technical field

[0001] The invention relates to a wind tunnel wind speed profiler and a control method thereof, in particular to a wind tunnel wind speed profiler based on a hot film sensor and a wireless sensor network and a control method thereof. Background technique

[0002] Soil wind erosion is the primary cause of land desertification and sandstorm disasters in arid, semi-arid and partially sub-humid areas, and is also one of the major environmental problems in many countries and regions in the world. Sand movement is as harmful as natural disasters such as floods, droughts and storms. It can bury farmland and pastures, destroy crops and blow away topsoil and seeds, seriously eroding the land on which human beings depend. At the same time, wind and sand movement can also hinder traffic, bury railways and highways, and endanger driving safety.

[0003] In my country, the Institute of Environment and Engineering in Cold and Arid Regions of the Chinese Academy of Science...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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