FR2795815A1 - Equipment for measuring the rate of flow on a pulveriser nozzle, comprises a container which may be fitted to a nozzle and has upper and lower level sensors connected to a computer with timer - Google Patents
Equipment for measuring the rate of flow on a pulveriser nozzle, comprises a container which may be fitted to a nozzle and has upper and lower level sensors connected to a computer with timer Download PDFInfo
- Publication number
- FR2795815A1 FR2795815A1 FR9908666A FR9908666A FR2795815A1 FR 2795815 A1 FR2795815 A1 FR 2795815A1 FR 9908666 A FR9908666 A FR 9908666A FR 9908666 A FR9908666 A FR 9908666A FR 2795815 A1 FR2795815 A1 FR 2795815A1
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- FR
- France
- Prior art keywords
- nozzle
- container
- pipe
- adaptable
- measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
- G01F11/28—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement
- G01F11/284—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement combined with electric level detecting means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F3/00—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow
- G01F3/36—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with stationary measuring chambers having constant volume during measurement
- G01F3/38—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with stationary measuring chambers having constant volume during measurement having only one measuring chamber
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Catching Or Destruction (AREA)
Abstract
Description
La présente invention a pour objet un dispositif pour la mesure du débit d'une buse d'un pulvérisateur agricole. The present invention relates to a device for measuring the flow rate of a nozzle of an agricultural sprayer.
Un pulvérisateur agricole comprend généralement une<B>ou</B> plusieurs rampes munies d'un certain nombre de buses qui<B>à</B> la longue ont tendance<B>à</B> s'encrasser ou<B>à</B> s'éroder, ce qui nécessite leur nettoyage ou leur remplacement, afin d'obtenir le débit préconisé par le constructeur, ou au moins un débit sensiblement équivalent pour chacune des buses. An agricultural sprayer usually includes one <B> or </ B> multiple ramps with a number of nozzles that <B> to </ B> the long tend to <B> to </ B> foul or < B> to </ B> erode, which requires cleaning or replacement, to obtain the flow recommended by the manufacturer, or at least a substantially equivalent flow rate for each of the nozzles.
Il n'existe pas actuellement de dispositif simple et fiable permettant de contrâler l'état d'une buse par la mesure de son débit. Habituellement, les agriculteurs mesurent le débit des buses au moyen d'un récipient gradué dont ils déterminent le temps de remplissage au moyen d'un chronomètre. There is currently no simple and reliable device for controlling the state of a nozzle by measuring its flow. Farmers usually measure the flow of the nozzles by means of a graduated container whose timing is determined by means of a stopwatch.
Or, pour obtenir une mesure relativement fiable il est nécessaire d'utiliser un récipient de grande contenance, généralement une bouteille d'un litre, ce qui rend la mesure longue et fastidieuse étant donné le nombre important de buses que peut comporter un pulvérisateur. However, to obtain a relatively reliable measurement it is necessary to use a container of large capacity, usually a bottle of a liter, which makes the measurement long and tedious given the large number of nozzles that can comprise a sprayer.
La présente invention a pour but de remédier<B>à</B> cette carence en proposant un dispositif de mesure du débit d'une buse d'un pulvérisateur agricole, qui tout en étant de conception simple permet d'obtenir rapidement une mesure fiable. The purpose of the present invention is to remedy this deficiency by proposing a device for measuring the flow rate of a nozzle of an agricultural sprayer, which, while being of simple design, makes it possible to obtain a measurement quickly. reliable.
Le dispositif de mesure du débit d'une buse d'un pulvérisateur agricole selon l'invention se caractérise essentiellement en ce qu'il comporte un récipient adaptable verticalement sur le nez d'une buse en vue d'être rempli par celle-ci, et muni intérieurement de deux capteurs de niveau distants d'une hauteur déterminée et reliés<B>à</B> un moyen de calcul incorporant un moyen de mesure du temps, et permettant de déterminer un débit et de l'afficher. The device for measuring the flow rate of a nozzle of an agricultural sprayer according to the invention is essentially characterized in that it comprises a receptacle adaptable vertically on the nose of a nozzle in order to be filled with it, and internally provided with two level sensors remote by a determined height and connected to a calculating means incorporating a time measuring means, and making it possible to determine a flow rate and to display it.
Le moyen de calcul permet, en fonction du temps nécessaire au remplissage du recipient entre les deux capteurs, de déterminer le débit de la buse, sachant que le volume dudit récipient entre lesdits capteurs est connu. selon une caractéristique additionnelle du dispositif selon l'invention, il comporte un moyen permettant d'atténuer la puissance du jet issu de la buse. The calculating means makes it possible, as a function of the time required for filling the container between the two sensors, to determine the flow rate of the nozzle, knowing that the volume of said container between said sensors is known. according to an additional feature of the device according to the invention, it comprises means for attenuating the power of the jet from the nozzle.
Selon une autre caractéristique additionnelle du dispositif selon l'invention, il comporte un moyen de mise<B>à</B> l'air du récipient faisant également office de trop plein, disposé au-dessus du capteur de niveau placé le plus haut. According to another additional feature of the device according to the invention, it comprises means for placing <B> to </ B> the air of the container also acting as overflow, arranged above the level sensor placed at the highest level. .
Selon un mode de réalisation préférentiel du dispositif selon l'invention, il consiste en un récipient de forme tubulaire sur la face interne de la paroi duquel sont placés les deux capteurs de niveau, et dans lequel plonge un tuyau dont l'extrémité externe est adaptable sur le nez d'une buse, tandis que l'extrémité interne débouche en dessous du capteur le plus bas, et qu'un trou est pratiqué dans ladite paroi au-dessus du capteur le plus haut. According to a preferred embodiment of the device according to the invention, it consists of a container of tubular shape on the inner face of the wall of which are placed the two level sensors, and in which plunges a pipe whose outer end is adaptable on the nose of a nozzle, while the inner end opens below the lowest sensor, and a hole is made in said wall above the highest sensor.
Selon une caractéristique additionnelle du mode de réalisation préférentiel du dispositif selon l'invention, le tuyau comporte<B>à</B> proximité de son extrémité adaptable<B>à</B> la buse une partie coudée. According to an additional feature of the preferred embodiment of the device according to the invention, the pipe comprises <B> to </ B> near its adaptable end <B> to </ B> the nozzle a bent part.
Selon une autre caractéristique additionnelle du mode de réalisation préférentiel du dispositif selon l'invention, le tuyau traverse un bouchon adaptable sur le récipient. According to another additional feature of the preferred embodiment of the device according to the invention, the pipe passes through a plug adaptable to the container.
Selon une caractéristique avantageuse du dispositif selon l'invention, l'extrémité externe du tuyau est munie d'un moyen permettant une adaptation étanche de la buse. According to an advantageous characteristic of the device according to the invention, the outer end of the pipe is provided with means for sealing adaptation of the nozzle.
Selon une autre caractéristique avantageuse du dispositif selon l'invention, les capteurs sont reliés<B>à</B> un ordinateur et le moyen de calcul consiste en un logiciel permettant de comparer les débits des buses d'une même rampe de pulvérisation. According to another advantageous characteristic of the device according to the invention, the sensors are connected to a computer and the calculation means consists of software for comparing the flow rates of the nozzles of the same spray boom.
Les avantages et les caractéristiques du dispositif selon l'invention, ressortiront plus clairement de la description qui suit et qui se rapporte au dessin annexé, lequel en représente un mode de réalisation non limitatif. The advantages and characteristics of the device according to the invention will emerge more clearly from the description which follows and which refers to the appended drawing, which represents a non-limiting embodiment thereof.
Dans le dessin annexé, la figure unique représente une vue schématique en coupe selon un plan longitudinal médian d'un dispositif de mesure du débit d'une buse d'un pulvérisateur. En référence<B>à</B> cette figure on peut voir qu'un dispositif de mesure du débit d'une buse d'un pulvérisateur agricole comporte un récipient<B>1</B> comprenant une paroi tubulaire<B>10</B> fermée inférieurement par un fond<B>11.</B> In the accompanying drawing, the single figure shows a schematic sectional view along a median longitudinal plane of a device for measuring the flow rate of a nozzle of a sprayer. With reference to this figure it can be seen that a device for measuring the flow rate of a nozzle of an agricultural sprayer comprises a container <B> 1 </ B> comprising a tubular wall <B> 10 </ B> bottom closed by bottom <B> 11. </ B>
Sur la face interne 12 de la paroi<B>10</B> sont placés deux capteurs de niveau<B>13</B> et 14, le capteur<B>13</B> étant positionné<B>à</B> proximité du fond<B>11,</B> tandis que le capteur 14 est positionné plus haut<B>à</B> une distance telle du capteur<B>13</B> que le volume du récipient <B>1</B> délimité par les deux capteurs<B>13</B> et 14 est connu. On the inner face 12 of the wall <B> 10 </ B> are placed two level sensors <B> 13 </ B> and 14, the sensor <B> 13 </ B> being positioned <B> to < / B> close to the bottom <B> 11, </ B> while the sensor 14 is positioned higher <B> at </ B> a distance from the sensor <B> 13 </ B> than the volume of the container <B> 1 </ B> delimited by the two sensors <B> 13 </ B> and 14 is known.
Par ailleurs, un trou<B>15</B> est pratiqué dans la paroi<B>10</B> au- dessus du capteur 14, il permet une mise<B>à</B> l'air du récipient<B>1</B> lors du remplissage de celui-ci, et fait office de trop-plein. Furthermore, a hole <B> 15 </ B> is made in the wall <B> 10 </ B> above the sensor 14, it allows a setting <B> to </ B> the air of the container <B> 1 </ B> when filling it, and acts as overflow.
Sur le récipient<B>1</B> est placé un bouchon 2 traversé par un tuyau 20 qui plonge dans le récipient<B>1</B> et dont l'extrémité interne 21 débouche entre le capteur<B>13</B> et le fond<B>11,</B> tandis que l'extrémité externe 22 est garnie d'un joint souple<B>23.</B> On the container <B> 1 </ B> is placed a plug 2 crossed by a pipe 20 which plunges into the container <B> 1 </ B> and whose inner end 21 opens out between the sensor <B> 13 < / B> and the bottom <B> 11, </ B> while the outer end 22 is furnished with a flexible seal <B> 23. </ B>
Les capteurs<B>13</B> et 14 sont reliés par l'intermédiaire de connexions électriques<B>16</B> et<B>17 à</B> un calculateur<B>3</B> qui incorpore un moyen de mesure du temps, et qui comporte un écran d'affichage<B>30.</B> Sensors <B> 13 </ B> and 14 are connected by means of electrical connections <B> 16 </ B> and <B> 17 to </ B> a calculator <B> 3 </ B> which incorporates a time measurement means, and which has a display screen <B> 30. </ B>
Pour mesurer le débit d'une buse, non représentée, on applique celle-ci contre le joint annulaire souple<B>23</B> ce qui permet de réaliser une liaison étanche. To measure the flow of a nozzle, not shown, it is applied against the flexible annular seal <B> 23 </ B> which allows for a sealed connection.
Pour réaliser une mesure fiable, il convient de maintenir le récipient<B>1</B> dans une position verticale. To make a reliable measurement, keep the <B> 1 </ B> container in a vertical position.
on notera toutefois que pour mesurer le débit de buses dont l'orientation ne permet de maintenir le récipient<B>1 à</B> la verticale, il est possible d'utiliser un dispositif comportant un tuyau 20 dont la partie extérieure au bouchon 2 est coudée. it should be noted, however, that in order to measure the flow rate of nozzles whose orientation makes it possible to keep the container <B> 1 to </ B> vertically, it is possible to use a device comprising a pipe 20 whose outside part of the plug 2 is bent.
Après ouverture de la vanne de la buse, le liquide issu de celle-ci se répand dans le tuyau 20, lequel a pour fonction d'une part d'atténuer la puissance du jet en le réduisant<B>à</B> un écoulement, et d'autre part<B>à</B> permettre le remplissage du récipient <B>1</B> par le bas en dessous du capteur<B>13,</B> de manière<B>à</B> réaliser dans le récipient<B>1</B> une montée du liquide progressive et sans remous. Lorsque le liquide atteint le capteur<B>13</B> cela déclenche au niveau du calculateur<B>3</B> une mesure du temps qui est arrêtée lorsque le capteur 14 est atteint. Comme le volume compris entre les deux capteurs<B>13</B> et 14 est connu, le calculateur peut déterminer le débit de la buse qui s'affiche sur l'écran<B>30.</B> After opening the valve of the nozzle, the liquid coming from it spreads in the pipe 20, which function is on the one hand to reduce the power of the jet by reducing <B> to </ B> a flow, and on the other hand <B> to </ B> allow container <B> 1 </ B> to be filled from below under sensor <B> 13, <B> so <B> </ B> realize in the container <B> 1 </ B> a gradual rise of fluid and without eddy. When the liquid reaches the sensor <B> 13 </ B> this triggers at the computer <B> 3 </ B> a measurement of the time that is stopped when the sensor 14 is reached. As the volume between the two sensors <B> 13 </ B> and 14 is known, the calculator can determine the flow rate of the nozzle that is displayed on the screen <B> 30. </ B>
Dans une variante, les connexions<B>16</B> et<B>17</B> sont reliées<B>à</B> un ordinateur qui incorpore un logiciel de calcul du débit, et qui présente l'avantage de permettre l'affichage simultané des débits de toutes les buses d'un pulvérisateur, autorisant ainsi une comparaison rapide de toutes les buses. In one variant, the <B> 16 </ B> and <B> 17 </ B> connections are connected to a computer that incorporates flow calculation software, and has the advantage to allow the simultaneous display of the flow rates of all the nozzles of a sprayer, thus allowing a quick comparison of all the nozzles.
Il va de soi que la présente invention ne saurait être limitée <B>à</B> la description qui précède d'un de ses modes de réalisation, susceptible de subir quelques modifications sans pour autant sortir du cadre de l'invention.It goes without saying that the present invention can not be limited <B> to </ B> the above description of one of its embodiments, may undergo some modifications without departing from the scope of the invention.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9908666A FR2795815A1 (en) | 1999-07-01 | 1999-07-01 | Equipment for measuring the rate of flow on a pulveriser nozzle, comprises a container which may be fitted to a nozzle and has upper and lower level sensors connected to a computer with timer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9908666A FR2795815A1 (en) | 1999-07-01 | 1999-07-01 | Equipment for measuring the rate of flow on a pulveriser nozzle, comprises a container which may be fitted to a nozzle and has upper and lower level sensors connected to a computer with timer |
Publications (1)
Publication Number | Publication Date |
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FR2795815A1 true FR2795815A1 (en) | 2001-01-05 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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FR9908666A Pending FR2795815A1 (en) | 1999-07-01 | 1999-07-01 | Equipment for measuring the rate of flow on a pulveriser nozzle, comprises a container which may be fitted to a nozzle and has upper and lower level sensors connected to a computer with timer |
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FR (1) | FR2795815A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB855340A (en) * | 1955-06-16 | 1960-11-30 | Baird & Tatlock Ltd | Improvements relating to liquid metering apparatus |
US4455870A (en) * | 1980-05-23 | 1984-06-26 | Jorritsma Johannes N | Method and apparatus for determining liquid flow rates |
US4485763A (en) * | 1981-10-05 | 1984-12-04 | Westfalia Separator Ag | Method for direct measurement of the amount of milk obtained from a cow by a milking system during milking |
EP0511722A2 (en) * | 1989-02-27 | 1992-11-04 | C. van der Lely N.V. | A milking plant |
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1999
- 1999-07-01 FR FR9908666A patent/FR2795815A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB855340A (en) * | 1955-06-16 | 1960-11-30 | Baird & Tatlock Ltd | Improvements relating to liquid metering apparatus |
US4455870A (en) * | 1980-05-23 | 1984-06-26 | Jorritsma Johannes N | Method and apparatus for determining liquid flow rates |
US4485763A (en) * | 1981-10-05 | 1984-12-04 | Westfalia Separator Ag | Method for direct measurement of the amount of milk obtained from a cow by a milking system during milking |
EP0511722A2 (en) * | 1989-02-27 | 1992-11-04 | C. van der Lely N.V. | A milking plant |
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