Wind velocity indicator

Abstract

The invention relates to a wind velocity indicator which can be used for a wind measurer of a horizontal shaft windmill and a wind measurer of atmosphere measurement. A support rod 3 of the wind velocity indicator is vertically arranged on a base 2, the plane where the base 2 is on is parallel to the horizontal surface, the upper part of the support rod 3 is provided with a spherical body 1 whichcan rotate in the mode of winding the axis OO' of the support rod 3, a plurality of straight holes 4 are respectively arranged on the same circumference on the lower hemisphere of the spherical body 1 and vertical to the support rod 3, the axis PP' of every straight hole 4 is parallel to the axis OO' of the support rod, every straight hole 4 is provided with a light source 5 inside, and the position of the base 2 corresponding to the light sources is provided with a position sensor 7.

Description

technical field [0001] The invention relates to wind speed measuring devices. Background technique [0002] There are many types of anemometers in the prior art, such as five-hole probes, wind cups, and speed pressure sensors, etc., generally including pressure sensors and position sensors for measuring wind speed and direction, and can also convert atmospheric pressure (pressure) according to wind speed . At present, the price of the five-hole probe in these devices is relatively expensive, and it is generally limited to laboratory use. It is not suitable for use in a dusty environment in the field. The wind cup is a commonly used device for weather forecasting and atmospheric measurement, and the price is relatively expensive. In the field During environmental use, it is also easy to be damaged due to wind and sand. Since it needs to rotate frequently with the wind direction, its rotating bearing parts are more easily damaged, and the rotating bearing often fails. It need...

AI Technical Summary

Problems solved by technology

At present, the price of the five-hole probe in these devices is relatively expensive, and it is generally limited to laboratory use. It is not suitable for use in a dusty environment in the field. The wind cup is a commonly used device for weather forecasting and atmospheric measurement, and the price is relatively expensive. In the field During environmental use, it is also easy to be damaged due to wind and sand. Since it needs to rotate frequently with the wind direction, its rotating bearing parts are more easily damaged, and the rotating bearing often fails. It needs to be calibrated and replaced frequently. The speed pressure sensor can measure wind speed and pressure. The accuracy is also higher

The above wind measuring equipment is expensive, and the rotating device needs to be aligned with the wind direction during use, which is inconvenient to use, and the rotating device changes direction for a long time and wears seriously.

In short, the current wind measuring device is expensive, the use environment is limited, and the operation is inconvenient

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