A wind direction and wind speed testing apparatus

Abstract

The invention discloses a wind direction and wind speed testing apparatus comprising a pedestal on which a wind direction indication disc is disposed. A rotating shaft is disposed on the center of the wind direction indication disc. A pointer used for indicating wind direction is disposed on the bottom of the rotating shaft. The top of the rotating shaft is connected with a transparent cylinder. The front end in the transparent cylinder is connected with a plastic sheet through a spring. The transparent cylinder is hollow in the front and back direction and is equipped with scales. The rear end of the transparent cylinder is connected with a wind vane. The wind direction and wind speed testing apparatus is not driven by electricity. The spring is compressed by resistance given by the plastic sheet blown by wind so as to indicate current wind speed. Additionally, the wind vane is arranged in order to accurately measure wind speed. Current wind direction can be read by the direction indicated by the pointer disposed on the rotating shaft, achieving an effect of killing many birds with one stone. The wind direction and wind speed testing apparatus has advantages of simpleness, practicability, and convenience, low price, and wide application in various fields.

Description

technical field [0001] The invention belongs to the field of wind speed measuring instruments, in particular to a wind direction and wind speed testing device. Background technique [0002] An anemometer is an instrument that measures air velocity. There are many types of it, and the most commonly used one in meteorological stations is the wind cup anemometer, which consists of three parabolic cone empty cups fixed on the bracket at 120° to each other to form the sensing part, and the concave surfaces of the empty cups are all in one direction. The whole induction part is installed on a vertical rotating shaft, and under the action of wind force, the wind cup rotates around the shaft at a speed proportional to the wind speed. Another type of rotary anemometer is the propeller anemometer, which consists of a three-blade or four-blade propeller as the sensing part, which is installed on the front end of a wind vane so that it is always aligned with the direction of the wind....

AI Technical Summary

Problems solved by technology

Most of the anemometers currently used are driven by electricity, and there are few anemometers that are easy to operate and low in cost, and do not require electric drive. Therefore, it is necessary to develop a simple anemometer for more use by everyone.

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