Wind speed measurement system and method for incoming wind in three-dimensional space

Abstract

The invention discloses a wind speed measurement system and a method of three-dimensional space wind. The wind speed measurement system of three-dimensional space wind comprises a first ultrasonic wave sensor, four second ultrasonic wave sensors, four third ultrasonic wave sensors and a data processor, wherein each second ultrasonic wave sensor takes the first ultrasonic wave sensor as an originalpoint O and the four second ultrasonic wave sensors are uniformly arranged so as to form a first four-element arc array in an xoy plane; each third ultrasonic wave sensor takes the first ultrasonic wave sensor as the original point O and the four third ultrasonic wave sensors are uniformly arranged so as to form a second four-element arc array in an yoz plane; and the data processor is connectedto each second ultrasonic wave sensor and each third ultrasonic wave sensor respectively. In the invention, through a one-transmitting eight-receiving ultrasonic wave sensor array, wind speed and winddirection detection is performed, there is no rotation component, a reaction to the changes of wind information is sensitive, there is no mechanical wearing, maintenance cost is low, a service life is long, and then, the data processor is used to determine the wind speed of the three-dimensional space wind, an azimuth and a pitch angle, and rapid, accurate and high-precision performance is achieved.

Description

Technical field [0001] The invention relates to the technical field of three-dimensional wind measurement, in particular to a wind speed measurement system and method for wind in a three-dimensional space. Background technique [0002] Wind is a very common natural phenomenon. In terms of meteorology, aviation, military, high-speed rail, navigation, and weapon launch calibration, accurate measurements of wind speed and wind direction are very demanding. At present, there are mainly two types of non-ultrasonic wind meters and ultrasonic wind meters in the domestic market. Non-ultrasonic anemometers mainly include mechanical anemometers, thermal anemometers, and Doppler laser anemometers. The mechanical anemometer contains a rotating module inside, so it has slow response speed, mechanical abrasion, easy damage, short life span, and can only test the wind speed and direction information in two-dimensional space, but the advantage is that the cost is relatively low. low. However,...

AI Technical Summary

Problems solved by technology

Doppler laser anemometers are generally expensive and bulky, and they are mostly moved by vehicles. They are often used in meteorological detection for large-scale events and are difficult to popularize. However, their advantages are wide range of information collection and accurate data.

[0003] Compared with non-ultrasonic anemometers, ultrasonic anemometers have a larger market share. Ultrasonic anemometers are also divided into one-dimensional, two-dimensional, and three-dimensional, and their prices gradually become more expensive as the dimension increases.

Compared with non-ultrasonic wind measuring instruments, ultrasonic one-dimensional wind measuring instruments and ultrasonic two-dimensional wind measuring instruments have higher measurement accuracy, small size, and easy portability, but they cannot obtain three-dimensional information of incoming wind in space. Some fields are not applicable; for ultrasonic 3D wind measuring instruments, the spatial wind information obtained is more

[0004] However, most of the ultrasonic three-dimensional anemometers on the market are based on the time difference method to measure the velocity components on the x, y, and z axes. The information of the spatial wind is obtained through space vector synthesis, and its measurement accuracy is relatively large. Relying on the measurement accuracy of the propagation time (that is, the passing time) of the ultrasonic signal from the sensor transmitting the ultrasonic signal to the sensor receiving the ultrasonic signal, and the working performance of the hardware, there are many influencing factors, resulting in low measurement accuracy

Images