ROTATING ATOMIZER DEVICE FOR APPLICATION IN APPARATUS FOR LAND SPRAYING

Abstract

A rotating atomizer device for the correction of eventual separations that random variations cause in the final result of the phytosanitary treatment so the application of the chemical products is done completely in agreement with what has been prescribed by the agronomic professional, achieving a greater efficiency of the phytosanitary spraying process. The technical information generated by the manufacturers of the agrochemical products regarding the physical characteristics of the phytosanitary chemicals; information regarding wind speed and direction, ambient humidity and temperature generated by a meteorological center and mounted in the spraying vehicle; information regarding the geo referential position, the speed and direction of the vehicle generated by a GPS type device mounted in the spraying vehicle; the information generated by the acceleration and magnetic field sensors, gyroscopes, flowmeters, spray liquid temperature sensors, rotation speed of plates sensor, magnetic analogic sensors for measuring angular positions.

Claims

1-26. (canceled)

27. A rotating atomizer device used for the land spraying of liquid phytosanitary products for agriculture, through the use of dragging or self-propelled machines, the device comprising: a main frame including an engine, a flow regulator, a rotor, a position and speed control medium, a lighting device, a sound platelet, a magnetometer integrated circuit, an accelerometer integrated circuit, a gyroscope integrated circuit, a communication, processing and control platelet; wherein said rotor incudes a cylindrical body having a central opening, an inner face, an outer face, a hollow central extension protruding out from the central opening, a plurality of equidistant radial blades located on the outer face, and a liquid inlet duct connected to a base of the cylindrical body of the rotor, a plurality of inclined walls located on the inner face; the inclined walls are tapered from the inner face towards the central opening forming a channel between each wall, whereby the liquid moves due to the effect of centrifugal forces; the rotating atomizer device is mounted on the main frame; wherein the device is free of an air generator; and wherein said at least one unit for drop generation is formed by a container cabinet in which outside a set of rotating plates are mounted, and in its inside, a chemical product feeder, an engine, a flow measuring device, a motorized flow regulator, two route end sensors of the motorized actuator of the flow regulator.

28. The device according to claim 27, wherein said at least one unit for the drop generation includes an angular sensor of motorized actuator position of the flow regulator and a pressure measuring device of the chemical product in the pipe of the transport.

29. The device according to claim 27, wherein said at least one unit for drop generation further includes a temperature measuring device of the engine, a measuring unit of the inner humidity of the compartment of the unit for drop generation.

30. The device according to claim 27, further comprising an inlet connector for the chemical product in liquid state, a control electronic unit to which the engine, the step engine of flow regulator, and other sensors are connected.

31. The device according to claim 27, further comprising a support box of the rotating atomizer unit formed by the flow regulator, the plates, and the engine.

32. The device according to claim 27, wherein said power drive unit includes a micro engine of direct current (BLDC).

33. The device according to claim 32, wherein said engine a voltage level of 12 Vcc type.

34. The device according to claim 32, wherein the engine is brushless type.

35. The device according to claim 27, wherein said flow regulator includes a manual adjustment that allows the complete closing in case of physical variations in the parts in contact with chemical products.

36. The device according to claim 34, further comprising a plurality of silicon hoses that continuously support transversal comprehension and decompression cycles to the direction of travel of the fluid inside them.

37. The device according to claim 36, wherein when exerting a greater or lesser crushing of the walls, a greater or lesser flow is achieved from a maximum (hose without any crushing) until the complete occlusion of the flow passage when producing a complete transversal crushing.

38. The device according to claim 37, further comprising a mechanism to transform the rotating movement of a step engine (STEP).

39. The device according to claim 38, wherein said STEP engine activates through a joint gear to an axis in an area of the cogwheel joint to a cylindrical body placed over one of its eccentric faces regarding the rotation axis of the cogwheel.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to facilitate comprehension and clarity the purpose of the present disclosure, it has been illustrated in several figures, in which it has been represented in one of the preferred embodiments, all by way of example, wherein:

[0045] FIG. 1 is a perspective view of the rotating atomizer device formed by a watertight cabinet that includes a main body 1-a and a cap 1-b; an electric watertight connector, formed by a base 2-a fixed to the cabinet and a mobile part fixed to the wiring 2-b.

[0046] FIG. 2 is a perspective view of the rotating atomizer device formed by the complete cabinet, the rotor 29 and the plate 30-a and closing disc 31.

[0047] FIG. 3 is a positional view in perspective of the rotating atomizer device formed by the complete cabinet, the rotor and the plate 30-a and its closing disc 31.

[0048] FIG. 4 is a view of the rotating atomizer device without the cabinet cap.

[0049] FIG. 5 shows a positional view in perspective of the rotating atomizer device without the cabinet cap.

[0050] FIG. 6 is an exploded view of FIG. 5.

[0051] FIG. 7 is a positional view of FIG. 6.

[0052] FIG. 8 is an exploded positional view of the rotating atomizer device and its components.

[0053] FIG. 9 is an exploded positional view of the rotating atomizer device and its components.

[0054] FIG. 10 is an exploded positional view of the rotating atomizer device and its components.

[0055] FIG. 11 is a detailed view of the engine BLDC 5, mass 29, disc 30-a and closing cap 31.

[0056] FIG. 12 is a detailed view of the engine BLDC 5, rotor 29, disc 30-a and closing cap 31, with the liquid outlet duct 45.

[0057] FIG. 13 is a positional view of FIG. 11.

[0058] FIG. 14 shows the engine BLDC 5, mass or rotor 29 and liquid outlet duct 45.

[0059] FIG. 15 is a positional view of the mass or rotor.

[0060] FIG. 16a) is a positional view of the mass or rotor.

[0061] FIG. 16b) is a positional view of the mass or rotor.

[0062] FIG. 17a) is a positional view of the mass or rotor.

[0063] FIG. 17b) is a sectional cut view of the mass or rotor.

[0064] FIG. 18a) is a view of the outside of the plate.

[0065] FIG. 18b) is a view of the inside of the plate.

[0066] FIG. 19 is a sectional cut view of the mass and disc and detailed view of the liquid outlet duct 45.

[0067] FIG. 20 is a detailed view of the flow regulator without cap.

[0068] FIG. 21 includes a detailed view of the frame of the flow regulator.

[0069] FIG. 22 includes a detailed view in the LEDs circuit.

[0070] FIG. 23 is an exploded view of FIG. 22.

[0071] FIG. 24 is an exploded view of the mass 29, plate 30-d and closing disc 31 and closing disc separator 32.

[0072] FIG. 25 is a back view in detail of the frame of the flow regulator.

[0073] FIG. 26a) is a view of the plate with serrated edge.

[0074] FIG. 26b) is a view of the plate with striped inner.

[0075] FIG. 27 is a view of the mass or rotor and set of three plates and closing disc.

[0076] FIG. 28 is a view of the complete rotating atomizer device and assembling in which the income and dispersion of the phytosanitary liquid can be observed.

[0077] FIG. 29 shows a functional diagram of the present disclosure.

[0078] FIG. 30 shows a functional diagram of the rotating atomizer device with flow measurement by opening plate and pressure measurement.

[0079] FIG. 31 shows a functional diagram of the rotating atomizer device with flow measurement by flowmeter.

[0080] FIG. 32 shows a graphic of the rotation position of the apparatus for spraying.

[0081] FIG. 33 shows a graphic of the change of course (deviation) of the spraying apparatus.

[0082] FIG. 34 illustrates the control panel.

DETAILED DESCRIPTION OF THE DRAWINGS

[0083] The present disclosure refers to a rotating atomizer device, of low volume, for its application in apparatus for land spraying of liquid and/or solid diluted and/or emulsified phytosanitary products for agriculture and its method for application.

[0084] The rotating atomizer device includes at least the parts that are detailed below: 1—) A watertight cabinet of zamac aluminum type, plastic or other material that protects the content and allows its mechanical fixing to the boom, formed by a main body according to FIG. 1; 1-a) and a cap according to FIG. 1; 1-b); 2—) a watertight electric connector that allows the connection of the rotating atomizer device to the power supply of 12 Vcc type (or 24 Vcc, according to the power supply voltage of the machine that transports the rotating atomizer devices) and to the data communication net, formed by a basis according to FIG. 1; 2-a) fixed to the cabinet and a mobile part fixed to the wiring according to FIG. 1; 2-b); a mass or rotor according to FIG. 1; 29) a support frame of the leds according to FIG. 1; 43) 3—) a flow regulator according to FIG. 20; 4—) a main frame 20 according to FIGS. 5 and 10 over which the other component pieces are fixed, in particular: a step motor (hereinafter STEP) according to FIG. 5; 44) a gear joint to its axis according to FIG. 10; 35), a cogwheel according to FIG. 10; 33) that when rotation in an axis engages with the teeth the above-mentioned gear, through an axis cylinder parallel to its rotation axis but displaced so as to imprint a lineal movement proportional to the rotated angle, that linked to this cylindrical protrusion of the cogwheel is the rod according to FIG. 7; 34) that guided by a slide to such effect that presses over the peristaltic hose according to FIG. 5; 28) in order to occlude it to a greater or lesser extent and a screw for zero flow regulation according to FIG. 20; 46); 5) A micro engine of direct current of the no-brush type (known as brushless or BLDC, hereinafter BLDC engines) according to FIG. 5; 5); 6) A platelet of speed control of the above-mentioned BLDC engine according to FIG. 5; 6): 7) A module for speed and position control of the STEP engine welded in the communication, processing and control platelet FIG. 5; 24); 8) A voltage sensor circuit and an integrated current circuit of power supply of the BLDC engine welded in the communication, processing and control platelet according to FIG. 9; 24) 9) A temperature sensor integrated circuit welded in the sensor platelet according to FIG. 5; 9) attached to the body of the BLDC engine; 10) A voltage sensor circuit and integrated current circuit of the power supply of the STEP engine welded in the communication, processing and control platelet according to FIG. 9; 24); 11) A temperature sensor integrated circuit welded in the sensor platelet according to FIG. 5; 20) attached to the body of the STEP engine; 12) a flowmeter according to FIG. 6; 12); 13) A magnetic sensor integrated circuit welded in the sensor platelet according to FIG. 8 that measures the rotation speed of the BLDC engine; 14) A temperature sensor integrated circuit attached to the final duct of liquid output according to FIG. 12; 14) prior to the rotor according to FIG. 6; 29) that measures temperature of the spray liquid; 15) A lighting system of the led type in charge of the night spraying with information of failures per color or per difference of bright or modulation of blinks according to FIG. 23; 47); 16) A humidity sensor integrated circuit welded in communication, processing and control platelet according to FIG. 9; 24) that measures humidity in the inside of the cabinet and detects eventual damage in its seal or the breakage of any of the inner components (peristaltic hose according to FIG. 4; 28), liquid connectors according to FIG. 7; 27) and flowmeter according to FIG. 6; 12); 17) A temperature sensor integrated circuit welded in the communication processing and control platelet according to FIG. 9; 24) for the temperature of the inner space of the cabinet; 18) a set of rotor or mass according to FIG. 6; 29), at least a plate according to FIG. 18, a closing disc according to FIG. 2; 31) coupled to it and to the BLDC engine axis; 19) At least two barrier optical sensors integrated circuits according to FIG. 20; 19-a), of the end of the route of the cogwheel according to FIG. 7; 33) of the flow regulators and at least one analogic magnetic sensor according to FIG. 20; 19-c) and its magnet 19b) for the determination of the intermediate positions; 20) A sensor platelet, in which the sensors mentioned in points 9, 11, 13 and 19 are connected; 21) A magnetometer integrated circuit welded in the communication, processing and control platelet according to FIG. 5; 24); 22) An accelerometer integrated circuit welded in the communication, processing and control platelet according to FIG. 5; 24); 23) A gyroscope integrated circuit welded in the communication, processing and control platelet according to FIG. 5; 24); 24) A communication, processing and control platelet with microcontroller, memory, clock rtc with battery, keyboard, display, hardware drivers for communication protocols CAN, RS232, IIC, RS485, that includes the sensors mentioned in points 16, 17, 21, 22, 23 and the control module for the STEP engine mentioned in point 7; 25) A filter of air inlet according to FIG. 7; 25); 26) A heating resistor to avoid condensation of ambient humidity in the inside of the welded cabinet in the communication, processing and control platelet; 27) A connector for liquid inlet according to FIG. 7; 27); 28) A peristaltic hose according to FIG. 5; 28); 29) A mace (or rotor) according to FIGS. 16 and 17: 30) a plate from which different versions can be used according to FIGS. 18 and 26 and 27; 31) A closing disc according to FIG. 2; 31); 32) Closing disc separator according to FIG. 24; 32); 33—) A cogwheel according to FIG. 7; 33) with a central body of displaced eccentric axis; 34) A cam or rod according to FIG. 7; 34); 35) A gear for the STEP engine according to FIG. 20; 35); 36) A led for indication of the power of the sensor platelet according to FIG. 20; 36) 37) A led for indication of the rotation of the BLDC engine welded in the sensor platelet according to FIG. 20; 37); 38) A led for indication of the opened position of the cogwheel welded in the sensor platelet according to FIG. 20; 38); 39) A led for indication of the closed position of the cogwheel welded in the sensor platelet according to FIG. 20; 39); 40) Flow regulator according to FIG. 20); 41) Base support of flowmeter according to FIG. 8; 41); 12); 42) Closing support of the flowmeter according to FIG. 8; 42); 12); 43) Support frame of the leds according to FIG. 21; 43), the liquid connector according to FIG. 7; 27) and the air filter according to FIG. 7; 25); 44) A STEP engine according to FIG. 5; 44); 45) A duct of liquid outlet according to FIG. 6; 45); 46) A zero flow adjustment according to FIG. 20; 46); 47) White lighting leds according to FIG. 22; 47); 48) Red indication leds according to FIG. 22; 48); 49) Diffuser lens according to FIG. 22; 49-a), Diffuser lens according to FIG. 22; 49-b); 50) Leds platelet according to FIG. 22; 50); 51) Fixation clamps of peristaltic hose according to FIG. 20; 51); 52) Pressure gauge welded in the sensor platelet according to FIG. 4; 52).

[0085] The flow regulator includes basically a duct of the silicon type (28) of the type of the ones used in the peristaltic pumps (in order to support of phytosanitary chemical products, it has been chosen to benefit from the physicochemical characteristics of the silicon hoses used in peristaltic pumps, suitable for any type of chemicals due to their simultaneous resistance to the attack of chemical products as well as their capacity to continuously support transversal comprehension and decompression cycles to the direction of travel of the fluid inside them). The liquid circuit is an only lace of silicon hose that starts from the income through a connector of wall passage type (27) until the area where it is possible to make an occlusion or release of the flow that transits inside the duct, until reaching to the outlet nozzle (45) that is composed of a metallic element that is capable of transmitting temperature of the liquid that is inside it to the attached temperature sensor (14).

[0086] The route includes in its way a palette flowmeter (12) to measure the flow. The STEP engine (44) produces the movement of the cogwheel (33) in one direction and the other through a gear (35) placed at the end of its axis.

[0087] The cogwheel (33) has two limits of barrier optic route that coincide with the extreme positions of its route in order to stop the STEP engine (44) and prevent eventual damages to the actuating mechanism. One of them (19a) is placed in the upper part of the frame (20) and detects when the cogwheel (33) is completely separated moving the cam (34) away of the bed completely releasing the liquid flow. The other (19b) is in the lower part of the frame, partially hidden behind the bed, and it detects when the cogwheel (33) is completely rotated in anticlockwise direction, pressing the cam (34) in the direction of the bed completely occluding the liquid flow.

[0088] The analogic hall sensor (19c) placed in the upper part of the frame (20) next to the barrier optical sensor (19a) mentioned in first place, generates a tension inversely proportional to the distance of the joint magnet (19d) to the cogwheel (33), in such a way that the tension generated is minimum when the hose (28) is completely occluded and in maximum when the occlusion is null.

[0089] The flow regulator (FIG. 20) operates in such a way to maintain the flow obtained by the application of the equations that determine it based on the agronomic professional prescription and to the separation between the rotating atomizer device and to the vehicle speed that transports it (agricultural machine) measured by a GPS type device, to the variation of the vehicle course that transports it measured by the magnetometer (FIG. 5; 24) and accelerometer (FIG. 5; 24) and gyroscope (FIG. 5; 24), to the physical characteristics of the spray liquid that at the same time determine through the technical information of the chemical products that form the spray liquid and its proportions previously loaded in the database of the screen, the spray liquid temperature measured by the sensor (14) attached to the outlet tube and the temperature, ambient humidity and wind speed measured by the meteorological central.

[0090] It works as a method for reloading that measures the flow resulting through the flowmeter (12) of the current occlusion, in case the flow is smaller than the programmed one it activated the cogwheel through the STEP engine (44) pushing the cam away (43) from the bed decreasing the occlusion of the peristaltic hose (28) so as to increase the flow until it coincides with the programmed flow. Inversely, in case the measured flow is bigger than the programmed one, it acts approaching the cam (43) to the bed increasing the occlusion of the peristaltic hose (28) to decrease the flow until it coincides with the programmed flow. El above-mentioned atomizer has a BLDC type engine (5), the electronic platelet of speed control (6), a rotor or mace (29) and at least a disc or plate (30a, b, c, d), a separator (32) and the closing cap (31) according to FIGS. 11 and 24). The cap (31) includes a plurality of inserts 31a. the rotor (29) also includes a plurality of channels 29c radially distributed.

[0091] The rotor (29) is formed by a body of cylindrical form having a central opening 29d, an inner face 29e, an outer face 29f, a hollow central extension 29a, protruding out from the central opening, a series of radial blades 29b, equidistant among them, and located on the outer face of the rotor in order to block the liquid from entering into the area of the engine bearing (not shown), this is achieved due to the centrifugal effect of air through the blades. The blades form part of the concentric central body with the axis and external to it in annular form, inside it there is a liquid inlet duct (45) to the rotor at the height of the base FIG. 19). Where in its inner face 29e includes a series of inclined plane walls 29g, equidistant among them from a tapered shape form that ends in a cavity 29h between each wall, whereby the liquid moves due to the effect of the centrifugal force (FIG. 16). In such a way that it is prevented that the liquid ascends to the upper part, and the liquid is propelled downwards when crashing against the inclined plane walls, due to the effect of the combination of the centrifugal force and gravity, to the inclined plane of the wall, the descendent tapered shape form produces a Venturi effect, generating a low-pressure area that absorbs the liquid towards the outlet opening when it is in movement and in rotation (FIG. 28). The plate or disc (30a, b, c, d) is mechanically linked in the bottom part of the rotor, when rotating at high speed the effect where the air layers next to the bottom surface of the plate are radially moved due to the effect of the centrifugal force takes place, generating a low-pressure area, causing that the liquid is radially moves without falling, as a layer over the bottom surface of the plate. Accordingly, the surface to be covered by this liquid layer increases when departing from the center. The effect of the surface tension of the liquid when exiting is sufficient to prevent that the liquid layer is separated in particles in the first stretch of the radial route over the surface, in the medium sector of the disc the mentioned layer suffers the separation into ligaments in radial form until finally the cohesive forces of the surface tension collapse while being exceeded by the disruptive forces of the centrifugation, separating into drops. Generating drops of uniform size, according to the model of Reynolds**. The edge of the disc (FIG. 18) slightly increases the uniformity of the drops.

[0092] The rotating atomizer device includes a BLDC type (5) engine, the rotor (29), and at least one disc (30a, b, c, d) according to FIG. 12 that rotates at high speed and a fluid that is deposited in the area next to their centers. The rotation produces a centrifugal effect that makes the liquid flow radially towards the disc periphery and finally abandon it incorporating itself in drop form to the surrounding gas (air).

[0093] Considering the speed acquired due to the fluid when moving away from the center of the disc, in fact the tangential speed is directly proportional to the distance to the center of rotation, the liquid layer that moves on the surface of the disc is separated first into filaments and finally the filaments are divided into drops following the proceedings described by Lord WS Rayleigh (On the Instability of Jets, Proceedings of the London Math. Soc. 1879).

[0094] One disc that rotates at high speed and with a fluid flow sufficiently low so that when the particles reach the periphery, they have sufficient space to move away from each other, shall produce an aerosol in which the drop size is shown at a low dispersion.

[0095] The sizes of the generated drops will decrease with the increase of the rotation speed and shall increase with the increase of flow.

[0096] The operation principle of the centrifugal atomizers is based in the kinetic energy contribution due to centrifugation of the liquid of the particles to produce the disintegration of the liquid in small drops overcoming the combined cohesive effects of the surface tension, the viscosity and the density.

[0097] In order to comply with the premise of this model (Reynolds) it is necessary that the complete above-mentioned process occurs before the liquid abandons the plate. An excessive flow will generate that the separation process of the sheet into the ligaments and the further process of separation of the ligaments into drops, depart from the center. If any of these processes is so much departed from the center that it has to take place outside the plate, the uniformity of the drop size should be affected.

[0098] THEORETICAL FOUNDATION OF THE BREAKUP MECHANISM OF A COMPACT LIQUID INTO DROPS: According to Walton, H. W., and W. C. Prewett 1949. The production of sprays and mists of uniform drop size by means of spinning disc type sprayers. Proc. Phys. Soc. 62B:341-350., the diameter of the drops is a function of the size and rotation speed of the disc and of the density and the surface tension of the liquid according to what has been specified in the following formula:

D=(K/W)*(T/Pd)1/2

[0099] Wherein:

[0100] D=diameter of the drops

[0101] K=dimentionless constant

[0102] W=angular speed

[0103] d=diameter of the disc

[0104] P=density

[0105] T=surface tension

[0106] It has already been established that the drop size increased when the surface tension increased and it decreased when the rotation speed increased, the diameter of the disc, the density, being the greater dependence the one of the rotation speeds, since the influence of the other involved variables is affected with a square rot (or power to 0.5). Dependence on viscosity or floe are not specified in this study.

[0107] Then, the Prof. Ichiro Tanasawa of the Production Science Department of the University of Tokyo in 1978, expanded the formula including flow and viscosity to the variables that determine the drop size.

SMD=KN×(Td×P)a×(1+b×Qd×V)

[0108] SMD=drop diameter (m)

[0109] N=rotation speed (rps)

[0110] T=surface tension (kg/s2)

[0111] d=disc diameter (m)

[0112] P=density (kg/m3)

[0113] Q=flow (kg/seg)

[0114] V=dynamic viscosity (Kg/ms)

[0115] K=dimentionless constant (0.45)

[0116] a=dimentionless exponent (0.5)

[0117] b=dimentionless constant (0.003)

[0118] Establishing that the drops diameter increases when the flow increases and decreases when viscosity increases, even though low incidence is assigned to this influence.

[0119] In more than 4000 essays carried out in the laboratory, it has been discovered that even if the equation of Tanasawa correctly expresses the dependence of the drop size on the physical variables related both to the atomization process (rotation speed, disc diameter and flow) and on the physical properties of the liquid to be sprayed (density, surface tension and viscosity) as regards its direct or inverse proportionality, the original dimentionless coefficients are not suitable to represent what happens with the phytosanitary chemical products diluted in a low proportion of water, as is the case of the present disclosure.

[0120] To such effect, specific values suitable for the coefficients to dimensional K, a and b have been determined according to the chart of liquid or solid, diluted and/or emulsified products in a liquid vehicle of phytosanitary products.

[0121] At the same time, the flow value shall vary in each rotating atomizer device depending on the advancement conditions of the vehicle to which the boom that supports the rotating atomizer devices at an equidistant distance is fixed, in a way that it guarantees a uniform coverage of drops/cm2 in that transversal direction of travel of the vehicle.

[0122] As long as the vehicle advances at constant speed and in a constant direction and the dose to be applied stated (Its/ha) by the agronomic professional is uniform for all the surface to be treated, all the rotating atomizer devices will generate the drops at a unique flow per hour (Its/min or cm3/min) and at the same rotation speed of the atomizer discs.

[0123] In case the changes of speed without change of the direction of travel, all the rotating atomizer devices shall equally vary the flow per hour (Its/min or cm3/min) increasing speed increases and decreasing if speed decreases in order to maintain constant the prescribed hectare flow. These flow variations shall cause undesirable variations in the drop size unless the calculation system of the rotation atomizer devices, applying the Tanasawa equation with the dimensionless coefficients suitable for the particular mixture of agrochemicals and water that is being sprayed, recalculates the rotation speed such that the drops diameter is left unchanged.

[0124] In case of an agronomic prescription of variable dose, each one of the rotating atomizer devises with the knowledge of its boom location, the geographic position of the vehicle, its speed and the hectare flow prescribed for the geographic point over which sprinkle is taking place, shall determine the flow per hour to which the flow regulator shall be adjusted to comply with the prescription and shall calculate the rotation speed of the BLDC engine that propels the atomizer disc to comply with the drop size prescribed at each instant.

[0125] The same happens in light of changes of direction or when the vehicle rotates, FIG. 32 and FIG. 33, each one of the rotating atomizer devices having the information mentioned in prior paragraphs apart from the information of the sensors (accelerometer, magnetometer and gyroscope) shall determine the individual speed regarding the ground and as a consequence shall recalculate at each instant the flow per hour and the rotation speed necessary to comply with the hectare flow and the drop size prescribed.

[0126] The surface tension, the viscosity and the density shall vary with the temperature. An example of this situation considering that the duct (usually metallic and exposed to the sun) and a set of equidistant rotating atomizer devises mounted over the boom. If we call the duct section “S”, the separation between the rotating atomizer devices “d”, and the duct temperature “Tc” and the flow of each rotating atomizer device “q”, and we further call “T1”, “T2”, . . . “Tn” to the successive outlet temperatures of each rotating atomizer device, called “v1”, “v2”, . . . “vn” to the speeds of each route we shall have: in the first route the flow that travels through the duct shall be “qt1=q×n” and the speed shall arise from dividing the flow “v1=(q×n)/s” and the liquid shall remain in the duct for a time t1=d/v1, replacing v1 for its equivalent t1=(d×s)/(q×n). In the last route the flow traveling through the duct shall only be “q” and the speed shall arise from the division of the flow “v1=q/s” and the time it delays in travelling this last route shall be tn=(d×s)/q. Comparing both situations it is possible to observe that with only the comparison of the first and the last route, the liquid that supplies the first rotating atomizer device, shall be exposed to the heat transference for a notoriously small period of time than the last segment, but furthermore the liquid that supplies the last rotating atomizer device had not only received the heat contribution as segment n was travelled, but this last one shall de added to the heat contributions received in each of the prior segments through which it has passed. The temperature of the liquid that supplies each one of the rotating atomizer devices uniformly distributed along the boom shall be different and increasing towards the far away extreme. Each one of the rotating atomizer devices through the temperature sensor of the liquid attached to the outlet duct shall measure the instant temperature and shall recalculate the viscosity, density and surface tension applying variation tables of these parameters with the temperature for the spray liquid in particular that is being sprayed, to finally recalculate the rotation speed that shall maintain the drop size unchanged using the equation and the described tables.