Thermal wind speed sensing device capable of performing zero compensation automatically and method for measuring wind speeds

Abstract

The invention discloses a thermal wind speed sensing device capable of performing zero compensation automatically. The device comprises an upper sensor chip, a lower sensor chip, a top casing, a bottom casing, support column bodies, a lower support platform and an upper support platform. The upper sensor chip is embedded at the bottom of the upper support platform, and the lower sensor chip is embedded at the top of the lower support platform; and the upper sensor chip is a wind speed sensor chip in a constant-temperature-difference mode, and the lower sensor chip is a wind speed sensor chip in a constant-power mode. A method for measuring wind speeds through the thermal wind speed sensing device comprises placing a thermal wind speed sensing device at a place of a wind speed to be tested; performing measurement, wherein the upper sensor chip works in a constant temperature difference working mode, the lower sensor chip works in a constant temperature working mode, and a single-chip microcomputer system measures and calculates wind speeds; and performing next measurement. The thermal wind speed sensing device can perform zero compensation automatically when used for measuring the wind speeds and has the advantages of being accurate in measurement and wide in wind speed measurement range.

Description

technical field [0001] The invention relates to a thermal wind speed sensing device, in particular to a thermal wind speed sensing device capable of automatic zero point compensation, and also to a method for measuring wind speed using the thermal wind speed sensing device. Background technique [0002] Wind speed and wind direction are very important parameters to reflect meteorological conditions, and have 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. As we all know, the zero-point temperature drift of typical thermal anemometers has always been a major obstacle to the improvement of the accuracy and sensitivity of thermal anemometers. Since the temperature of the environment and the temperature of the sensor are constantly changing, the zero point always drifts to varying degrees, which is a big ...

AI Technical Summary

Problems solved by technology

As we all know, the zero temperature drift of typical thermal anemometers has always been a major obstacle to the improvement of the accuracy and sensitivity of thermal anemometers

Since the temperature of the environment and the temperature of the sensor are constantly changing, the zero point always drifts to varying degrees, which is a big problem for the sensitivity and accuracy of the anemometer.

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