Triangular-array ultrasonic wind detecting sensor

Abstract

The invention relates to a triangular-array ultrasonic wind detecting sensor. The triangular-array ultrasonic wind detecting sensor comprises three ultrasonic transducer groups which are distributed in a regular triangle manner; each ultrasonic transducer group comprises two ultrasonic transducers; the ultrasonic transducer groups are connected with a wind detecting master control module, and the wind detecting master control module can drive the ultrasonic transducers to work; as for the two ultrasonic transducers in the same ultrasonic transducer group, the wind detecting master control module can drive one ultrasonic transducer to emit ultrasonic waves and receive the emitted ultrasonic waves through the other ultrasonic transducer, and after acquiring flight time of six groups of corresponding ultrasonic waves of the three ultrasonic transducer groups, the wind detecting master control module determines and outputs current wind speeds and wind directions according to the flight time of the corresponding ultrasonic waves of the three ultrasonic transducer groups. The triangular-array ultrasonic wind detecting sensor is compact in structure, the three ultrasonic transducer groups can perform measurement simultaneously, the current shielding condition is avoided, the accuracy and stability of measurement can be effectively improved, and the triangular-array ultrasonic wind detecting sensor is high in adaptability, safe and reliable.

Description

technical field [0001] The invention relates to a wind measuring sensor, in particular to a triangular array ultrasonic wind measuring sensor, which belongs to the technical field of two-dimensional wind direction and wind speed measurement. Background technique [0002] At present, the most common two-dimensional ultrasonic wind sensors in China are reflective and through-beam, both of which are realized by directional transducers. The domestic development of directional transducers is very mature, with the advantages of stable performance, low power consumption, small size, and low cost. The reflective ultrasonic wind sensor has a compact structure, but it is its reflective structure that has a greater impact on the wind field, and its measurement accuracy and wind speed measurement range are limited. The through-beam ultrasonic wind sensor generally uses two pairs of orthogonal Although the measurement accuracy and wind speed measurement range of the separate transducer ...

AI Technical Summary

Problems solved by technology

The reflective ultrasonic wind sensor has a compact structure, but it is its reflective structure that has a greater impact on the wind field, and its measurement accuracy and wind speed measurement range are limited. The through-beam ultrasonic wind sensor generally uses two pairs of orthogonal Although the measurement accuracy and wind speed measurement range of the separate transducer have been greatly improved compared with the reflective ultrasonic wind sensor, due to the orthogonal method, it will be difficult to measure the wind direction and wind speed in the orthogonal direction. produce large error

Due to the spatial overlap of the two orthogonal measurement paths, the measurement cannot be carried out at the same time, the measurement cycle is bound to be extended, and the number of effective measurements is also reduced, so the measurement accuracy will also be reduced.

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