Ultrasonic wind speed and direction measurement device and measurement method

Abstract

The present invention belongs to the field of ultrasonic measurement, and relates to an ultrasonic wind speed and direction measurement device and measurement method. Problems that conventional ultrasonic wind measurement devices are high in cost, opposite-type devices are large in mechanical structure and reflection-type devices are limited in precision are solved. The ultrasonic wind speed and direction measurement device comprises an ultrasonic sensor array, an A / D converter group, an upper computer and a display, wherein the ultrasonic sensor array is composed of six ultrasonic sensors. The measurement method of the ultrasonic wind speed and direction measurement device comprises controlling a NO. 0 ultrasonic sensor by the upper computer to send an ultrasonic single, the sent signal being S(t), the frequency f of the sent ultrasonic waves being 200 kHz; sampling signals received by NO. 1 to NO. 5 ultrasonic sensors by using the A / D converter group and inputting the sampled signals to the upper computer for arithmetic computation; controlling a display module by using the upper computer and outputting and displaying real-time wind speed and direction values after computation.

Description

technical field [0001] The invention belongs to the field of ultrasonic measurement, and relates to an ultrasonic wind speed and direction measurement device and a measurement method. Background technique [0002] In terms of wind speed and direction measurement, currently commonly used instruments include wing anemometer, cup anemometer, thermal anemometer and ultrasonic anemometer. Wing-shaped anemometers and cup-shaped anemometers are easy to use, but their mechanical friction resistance and inertia are relatively large, and they are only suitable for measuring high wind speeds, and cannot be used for some occasions that need to measure small wind speeds; commonly used mechanical instruments Because there are many moving parts, there are disadvantages such as structural wear, short service life, inability to use in harsh environments, and high maintenance costs. In addition, limited by the mechanical structure and the measurement principle of mechanical wind measuring ins...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the problems existing in the prior art that the cost of the ultrasonic wind measuring instrument is relatively high, the mechanical structure of the through-beam instrument is relatively large, and the accuracy of the reflective instrument is limited, and an ultrasonic wind speed and direction measuring device and Measurement method; in particular, relates to a method for measuring wind speed and direction by using an array of ultrasonic sensors and an array signal processing algorithm

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