Delay-measurement-based hot wind speed sensor structure and wind speed and direction measuring method

Abstract

The invention discloses a delay-measurement-based hot wind speed sensor structure and a wind speed and direction measuring method. The hot wind speed sensor structure comprises a substrate; if an XOY rectangular coordinate system is established on the upper surface of the substrate, a groove is formed in the position of an original point O, and the groove is internally provided with a pulsed heat source; and the positive and negative directions of an X-axis as well the positive and negative directions of a Y-axis are respectively provided with a group of temperature measuring points, wherein each group of temperature measuring points comprises two temperature measuring points which are respectively marked as a first temperature measuring point and a second temperature measuring point, the distances from the four first temperature measuring points to the original point O are equal, the distances from the four second temperature measuring points to the original point O are equal, and each temperature measuring point is provided with a temperature sensor. The wind speed and direction are measured through measuring the time difference of temperature signals received by the temperature sensor, so that the influences of the heat source and environmental temperature to measurement can be avoided; and the delay-measurement-based hot wind speed sensor structure has the advantages of high precision, strong anti-jamming capability, low power consumption, super-miniaturization and the like.

Description

technical field [0001] The invention relates to a thermal wind speed and direction sensor structure and a wind speed and direction measurement method based on pulse heating and time delay measurement. The wind speed and direction measurement is realized by measuring the time delay between two temperature sensor signals. Background technique [0002] Wind speed and wind direction are very important parameters to reflect environmental meteorological information. The detection of wind speed and wind direction has an important impact on environmental monitoring, air conditioning and industrial and agricultural production. Therefore, it is of great practical significance to quickly and accurately measure wind speed and wind direction. Such sensors generally include traditional wind cup and wind vane structures, ultrasonic wind speed sensors and thermal wind speed sensors, etc. Traditional wind cups and wind vanes have large structures, generally tens of centimeters or more, and t...

AI Technical Summary

Problems solved by technology

However, since this type of sensor realizes wind speed measurement by measuring the principle of thermal field or heat loss, the temperature drift effect and zero point drift are relatively large, and the sensor needs to be continuously heated, and the power consumption is relatively large

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