Method and device for measuring airflow velocity

The invention relates to a method and a device for measuring airflow velocity; on one hand, a receiving end can respond sensitively to weak airflow such as breeze and the like, can be used for measuring airflow parameters in breeze and strong wind ranges, is large in measurement range, and can be used for measuring under low-temperature environment and rainy and snowy weather environment; on the other hand, the measuring range of the airflow velocity measured by the group of ultrasonic receiving parts on the inner side is larger than that of the group of ultrasonic receiving parts on the outer side, and the precision, namely the measurement accuracy, is lower, but the precision of the airflow velocity measured by the group of ultrasonic receiving parts on the outer side is higher, and the measuring range is relatively smaller; the airflow velocity measured by the group of ultrasonic receiving parts on the inner side is corrected by utilizing the airflow velocity measured by the group of ultrasonic receiving p