Wind-speed and wind-direction sensor

Abstract

The invention discloses a wind-speed and wind-direction sensor which comprises a base plate (1), a resistance layer (2) arranged on the base plate (1), a first electrode (31), a second electrode (32), a third electrode (33), a fourth electrode (34), a top plate (5), a support rod (4), a capacitive electrode (6), a wind sensitive rod (7) and a lead (8), wherein the first electrode (31), the second electrode (32), the third electrode (33) and the fourth electrode (34) are respectively arranged on the resistance layer (2) and are not interconnected; the top plate (5) is arranged opposite to the base plate (1) and is away from the base plate (1) for a certain distance; the support rod (4) is used for connecting the base plate (1) with the top plate (5); the capacitive electrode (6) is arranged on the top plate (5); the wind sensitive rod (7) is arranged between the base plate (1) and the top plate (5); the lead (8) is arranged on the top plate (5); the wind sensitive rod (7) comprises a fixing end and a free end opposite to the fixing end; the free end and the fixing end of the wind sensitive rod (7) are respectively connected with the base plate (1) and the top plate (5); the wind sensitive rod (7) has no contact with the resistance layer (2); and the free end of the wind sensitive rod (7) and the resistance layer (2) form a capacitive structure. The wind-speed and wind-direction sensor disclosed by the invention has the advantages of simplicity in mounting, convertible measuring range, low power consumption, small size, small temperature drift and the like.

Description

Technical field [0001] The invention relates to a structure of a small wind speed and direction sensor, in particular to a wind speed and wind direction sensor system realized by the principle of resistance shunt and its measurement principle. Background technique [0002] Wind speed and direction sensors are widely used in environmental monitoring and field operations. Such sensors generally have traditional wind cup and vane structure, pure solid hot wire or hot film structure, and ultrasonic wind speed measurement system. The traditional wind cup and wind vane structure are relatively large, usually tens of centimeters or more, and there are rotating parts, which are easy to wear; although the thermal wind speed sensor can be made small, the temperature drift and power consumption are inherent problems. Improvement: The ultrasonic wind speed sensor has been greatly developed in recent years. The sensor has many outstanding advantages such as high accuracy, large measurement r...

AI Technical Summary

Problems solved by technology

Traditional wind cups and wind vanes have large structures, generally tens of centimeters or more, and there are rotating parts that are easy to wear; although thermal wind speed sensors can be made very small, temperature drift and power consumption are inherent problems. Improvement; the ultrasonic wind speed sensor has been greatly developed in recent years. The sensor has many outstanding advantages such as high precision, large measurement range, and long service life. The disadvantages are the large size (above 10 cm) and high price

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