DEVICE MEASURING THE WIND SPEED AND THE WIND DIRECTION

FIELD OF THE INVENTION

The present invention refers to a device which depending on the provided component it is able to measure the wind speed and/or the wind direction. The device consists of the main body, in the inside part of which an electronic circuit is located, and of two components that can be used separately depending on the physical quantity we wish to measure.

DESCRIPTION OF RELATED ART

Until today in the prior art no similar technology has ever been presented in this kind of devices. In particular, until today no device that can measure wind speed and/or wind direction has ever been manufactured. On the contrary there exist several devices for the measurement of the wind speed the operation of which is based on totally different principles of operation compared to the device of my invention. In particular, the other devices either use optical sensors with a switch or a rotating coil attached to the axle of the rotor. The most expensive of the above described devices are the ones using an optical sensor.

The major disadvantage of all the above mentioned devices is that they can neither operate sufficiently nor withstand the specific characteristics of complex terrains such as the Greek terrain which is characterized by a high wind potential and heavy snowfalls. Furthermore, none of these devices can measure the wind direction.

The above disadvantage led me to the search of a solution to the above problems, the result of which is the invented device.

The main advantage of my invention is the ability to measure both wind speed and wind direction using a single device. In addition, the rotor used for the wind speed measurement is provided with three cups and has a pioneer design which aims to the improvement of the mechanical features of the arms and the rotors so as not to break during their operation under difficult weather conditions.

BRIEF DESCRIPTION OF THE DRAWINGS

The technical, constructional and functional characteristics of the invented device, according to the present invention, will be comprehensive to those skilled in the art, with reference to the accompanying drawings of the present specification, which show an indicative industrial preferred embodiment of the present invention.

In particular, figure 1 is a perspective view of the device of the invention.

Figure 2 shows two views of the rotor used for the wind speed measurement and figure 3 also shows two views of the vane tail used for the wind direction measurements.

Figure 4 shows a bipolar magnet located in the inside part of the main body of the device.

Figure 5 shows the two parts of the main body.

Figure 6 shows the upper part of the main body with the axle in its inside part.

And figure 7 shows two views of the lower part of the body with the electronic circuit and the connection plug.

The drawings show an example of the present invention. Hereinafter, same reference numbers of the main parts of the object refer to the corresponding

reference numbers of those parts in the accompanying drawings. The parts are not depicted to scale but simply in dimensions proportional to one another.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

According to the selected indicative embodiment of the invention, the invented device consists of the main body 1. The main body is made of aluminum and can be divided into two parts, the lower part 6 and the upper part 7. The two components used, depending on the physical quantity, are the rotor 2 and the vane tail 3.

The main body 1 is of curved shape and consists of a tall neck in order for the rotor 2 or the vane tail 3 to be placed in such a position away from the base so as to minimize the effects of the wind flow which alter the measurements. The electronic circuit 9 is placed inside the lower part 6. The upper part 7 is hollow and in the inside part thereof the axle 8 is located. The rotor 2 or the vane tail 3 is fixed on the axle 8.

The rotor 2 is provided with three cups 11 with great mechanical tolerance and is made of a composite material of thermoset matrix and glass chopped strands as reinforcement. Their dimensions have been calculated in order for the best performance to be achieved. The vane tail is made of aluminum and has a flat tail 12 and a counterweight 13 in order to balance on the rotation axle.

The device is fixed in the meteorological tower on a side arm. The connection of the device on the data logger is achieved by connecting a cable in the plug 10 underneath the base. The connection is very fast and easy.

The principles of operation of my invention are based on the rotation of a bipolar magnet 4 right above a magnetic encoder 5. The bipolar magnet 4, which is firmly attached to the axle 8 of rotor 2 or vane tail 3, rotates with the same speed as

they do. The magnetic encoder 5 can either measure the rotational speed of the magnet or the angle formed by an initial reference point. The two operating modes change by means of simply programming the magnetic encoder.

It should also be noted that the object of the present invention should not be limited to the above described example. The accomplishment of this invention is also possible in other constructive ways, methods, fittings and machinery within the scope of the present specification.