Xiangbao Zeng , YuPeng Yuan , Songlin Liao , Lu Wang , Jianan Li , Qihong Ning , Hua Yu
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引用次数: 0
Abstract
Wind power generation, aerospace, meteorology and other key industries have an urgent need for high-precision and high-reliability detection of wind speed and direction. Compared with the traditional mechanical, ultrasonic convective, and ultrasonic reflective wind speed and direction sensors, the ultrasonic resonant wind speed and direction sensing solution in this paper has significant advantages of small size, high accuracy, and no mechanical abrasion. In order to solve the problem of accuracy shift of ultrasonic resonance wind speed and direction sensor under complicated operating conditions, this paper establishes the relationship between the working environment temperature and the resonance frequency point, to realize the temperature compensation of the sensor under different conditions. The wind tunnel test of the sensors under different temperature conditions has been carried out, and the test results show that the wind speed measurement accuracy of the ultrasonic resonance wind speed and direction sensor proposed in this paper is significantly improved after the temperature compensation of the resonance state. After the compensation, the accuracy of wind speed can reach ±0.3 m/s in the wind speed range of less than 15 m/s, and ±2.3 % in the wind speed range of 15 m/s ∼ 50 m/s, improving the accuracy more than 40 % compared with the traditional ultrasonic convection/reflection type. In conclusion, it provides support for more effective wind speed and direction measurements for key areas such as improving the power generation efficiency of wind farm turbines and improving the accuracy of elemental measurements in the meteorological field.
期刊介绍:
Since its launch in 1968, Applied Acoustics has been publishing high quality research papers providing state-of-the-art coverage of research findings for engineers and scientists involved in applications of acoustics in the widest sense.
Applied Acoustics looks not only at recent developments in the understanding of acoustics but also at ways of exploiting that understanding. The Journal aims to encourage the exchange of practical experience through publication and in so doing creates a fund of technological information that can be used for solving related problems. The presentation of information in graphical or tabular form is especially encouraged. If a report of a mathematical development is a necessary part of a paper it is important to ensure that it is there only as an integral part of a practical solution to a problem and is supported by data. Applied Acoustics encourages the exchange of practical experience in the following ways: • Complete Papers • Short Technical Notes • Review Articles; and thereby provides a wealth of technological information that can be used to solve related problems.
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