WO2009130348A1 - Dendrometer - Google Patents
Dendrometer Download PDFInfo
- Publication number
- WO2009130348A1 WO2009130348A1 PCT/ES2009/000218 ES2009000218W WO2009130348A1 WO 2009130348 A1 WO2009130348 A1 WO 2009130348A1 ES 2009000218 W ES2009000218 W ES 2009000218W WO 2009130348 A1 WO2009130348 A1 WO 2009130348A1
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- WO
- WIPO (PCT)
- Prior art keywords
- sensor
- dendrometer
- trunk
- plant
- measured
- Prior art date
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0035—Measuring of dimensions of trees
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G23/00—Forestry
- A01G23/02—Transplanting, uprooting, felling or delimbing trees
- A01G23/099—Auxiliary devices, e.g. felling wedges
Definitions
- the present invention relates to a dendrometer, whose purpose is to continuously measure the diametral growth of trees, branches and fruits, allowing to monitor the growth of the plant and its water state to estimate the degree of turgidity of the same.
- the object of the invention is to provide a fully autonomous dendrometer, with low maintenance, which allows the collection of data corresponding to the continuous measurements made by it, with few displacements of personnel to the place of application and / or test.
- the study of plant growth is one of the main tools for the management of plant formations, so it is important to know the magnitude of growth over long periods of time, at what time of the year it occurs with greater intensity, than relationship It has immediate climatic conditions, and if these growth variations are related to the physiological state of the plant.
- dendrometric bands and non-electronic point devices The main disadvantages of dendrometric bands and non-electronic point devices, is that the data collection is done manually by specialized personnel, which implies frequent travel to the study area. In addition, its accuracy is low, so although they can be used to analyze periodic growths in a large number of trees or plants, it does not have sufficient sensitivity to measure daily oscillations of the dimensions of trunks or branches to relate them to the state water of the plant.
- Continuous measurement dendrometers are known based primarily on LVDT (Linear Variable Differential Transformer) and strain gauge technology, where data collection is performed by mobile telephony and allows an immediate response in risk planning, as they detect the water stress of the plant.
- LVDT Linear Variable Differential Transformer
- strain gauge technology where data collection is performed by mobile telephony and allows an immediate response in risk planning, as they detect the water stress of the plant.
- the dendrometer object of the invention has been designed to solve the above-mentioned problem, since on the one hand it is autonomous by incorporating long-lasting batteries or batteries that allow the supply of the necessary electrical energy, and on the other hand it incorporates a sensor whose path and Displacement is very wide, allowing operation without the need to go to the sensor on a regular basis, as conventionally occurs.
- the dendrometer of the invention is based on a linear positioning sensor, which transforms variations of the position of the corresponding piston thereof, in contact with the plant, in voltage differences that are collected by an electronic recorder conveniently insulated in a sealed manner. and connected to the sensor, in proximity to it, by means of a three-wire cable of high impedance, so that the reading of the radio variations of the plant object of the study or measurement is collected in the form of volts, having a relationship between voltage and length of 1 mV equivalent to 4 microns.
- the accuracy of the device is given by the capacity of the recorder, since the proposed 12-bit one is the resulting resolution of 0.61 mV equivalent to 2.44 microns, which allows to study the daily variations of the plant due to the hydric state of the same, like the accumulated radial growth of the trunk or branches and the duration of the vegetative period.
- the linear positioning sensor which constitutes a resistive potentiometer, is fixed to the plant that you want to measure by means of a support that, in trunks of remarkable diameter, is constituted by a profile in
- the electronic logger collects data with easily programmable and reduced time intervals, said logger offering a memory capable of storing up to 450 days of data if the collection is made every 15 minutes of a single sensor.
- the set is fixed and is located on the plant itself (tree trunk), without the need for cables on the ground, or solar panels, or any other electrical installation system.
- Figure 1 shows a plan view of the dendrometer of the invention provided for the measurement of large diameter trees.
- Figure 2. Shows a perspective view of the practical application of the dendrometer of the previous figure on the trunk of a tree, the connection to the electronic logger being also seen, also subject to said tree trunk.
- the dendrometer of the invention comprises a linear positioning sensor (1), with a movable piston (2) and with a connection (3) for three-wire cable connecting to an electronic recorder ( 4), which is integrated in a waterproof case to protect it from moisture.
- Said recorder (4) is provided to collect the voltage differences provided by the sensor (1) as an element of transforming the variations of the position of its piston (2) in the mentioned voltage differences.
- the referred sensor (1) constitutes a 5 k resistive potentiometer?
- the electronic recorder (4) is 12 bits, with a reading voltage of 0-2.5 volts.
- the senor (1) is mounted on a support constituted by a "L" profile (6) with double threaded screws (7) to, on the one hand, be fixed to the trunk (5) and on the other to make the corresponding adjustment by means of nuts (8), this profile (6) being placed tangentially to the trunk (5), although separated from it so that the plunger (2) of the sensor (1) is in contact with the trunk itself (5) ).
- the referred sensor (1) is fixed to the support constituted by the profile (6) by means of corresponding screws and nuts (10).
- the (1) is connected to the recorder (4), included in a waterproof box, through the wiring (9), whose waterproof box is also attached to the tree trunk, in proximity to the sensor (1), by elastic rubber.
- the support for the sensor (1) will be of variable characteristics in structure, configuration and weight, depending on the resistance of the plant being measured.
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- Life Sciences & Earth Sciences (AREA)
- Botany (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Environmental Sciences (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Cultivation Of Plants (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention relates to a dendrometer based on a linear positioning sensor which transforms variations of the position of its corresponding piston, which is in contact with the plant, into voltage differences captured by an electronic recorder connected to the sensor, in the vicinity of same, by means of a cable consisting of three high-impedance wires, in such a way that the reading of the radial variations of the plant studied or measured is taken in volts, the ratio between voltage and length being 1 mV (4 micrometres). The precision of the device is determined by the capacity of the recorder, the resulting resolution for 12 bits being 0.61 mV (2.44 micrometres), enabling the study of the daily variations of the plant, generated by the hydric status of same, along with the accumulated radial growth of the stem or branches and the duration of the vegetative period.
Description
DENDROMETRO DENDROMETER
D E S C R I P C I Ó ND E S C R I P C I Ó N
OBJETO DE LA INVENCIÓNOBJECT OF THE INVENTION
La presente invención se refiere a un dendrómetro, cuya finalidad es la de medir de manera continua el crecimiento diametral de árboles, ramas y frutos, permitiendo monitorizar el crecimiento de la planta y su estado hídrico para estimar el grado de turgencia de la misma.The present invention relates to a dendrometer, whose purpose is to continuously measure the diametral growth of trees, branches and fruits, allowing to monitor the growth of the plant and its water state to estimate the degree of turgidity of the same.
El objeto de la invención es proporcionar un dendrómetro totalmente autónomo, con bajo mantenimiento, que permite recopilar los datos correspondientes a las mediciones continuas realizadas por el mismo, con escasos desplazamientos del personal al lugar de aplicación y/o de ensayo.The object of the invention is to provide a fully autonomous dendrometer, with low maintenance, which allows the collection of data corresponding to the continuous measurements made by it, with few displacements of personnel to the place of application and / or test.
ANTECEDENTES DE LA INVENCIÓNBACKGROUND OF THE INVENTION
El estudio del crecimiento de las plantas es una de las principales herramientas para la gestión de las formaciones vegetales, por lo que resulta importante conocer la magnitud del crecimiento en periodos largos de tiempo, en que época del año se produce con mayor intensidad, que relación tiene con las condiciones climáticas inmediatas, y si estas variaciones del crecimiento están relacionadas con el estado fisiológico de la planta.The study of plant growth is one of the main tools for the management of plant formations, so it is important to know the magnitude of growth over long periods of time, at what time of the year it occurs with greater intensity, than relationship It has immediate climatic conditions, and if these growth variations are related to the physiological state of the plant.
Se conocen, al menos, dos maneras de abordar el estudio del
crecimiento, una de ellas basada en dispositivos para cuantificar variaciones en periodos amplios de tiempo, cuyos dispositivos corresponden a bandas dendrométricas con mediciones puntuales y recogida manual de datos, y otra manera basada en dispositivos electrónicos de registro continuo.There are at least two ways of approaching the study of growth, one of them based on devices to quantify variations over a long period of time, whose devices correspond to derometric bands with specific measurements and manual data collection, and another way based on electronic devices for continuous recording.
Las principales desventajas de las bandas dendrométricas y dispositivos puntuales no electrónicos, es que la toma de datos se hace de forma manual por personal especializado, lo que implica frecuentes desplazamientos a la zona de estudio. Además su precisión es baja, por lo que a pesar de que pueden ser utilizados para analizar crecimientos periódicos en un número elevado de árboles o plantas, no tiene la sensibilidad suficiente para medir oscilaciones diarias de las dimensiones de troncos o ramas para relacionarlas con el estado hídrico de la planta.The main disadvantages of dendrometric bands and non-electronic point devices, is that the data collection is done manually by specialized personnel, which implies frequent travel to the study area. In addition, its accuracy is low, so although they can be used to analyze periodic growths in a large number of trees or plants, it does not have sufficient sensitivity to measure daily oscillations of the dimensions of trunks or branches to relate them to the state water of the plant.
Se conocen dendrómetros de medición continua basados fundamentalmente en la tecnología LVDT (Transformador Diferencial Variable Lineal)y en la de galgas extensiométricas, en donde la recogida de datos se realiza por telefonía móvil y permite una respuesta inmediata en la planificación de riegos, ya que detectan el estrés hídrico de la planta.Continuous measurement dendrometers are known based primarily on LVDT (Linear Variable Differential Transformer) and strain gauge technology, where data collection is performed by mobile telephony and allows an immediate response in risk planning, as they detect the water stress of the plant.
Por este motivo éste último tipo de dispositivos se emplean fundamentalmente en sistemas agrícolas intensivos (cítricos, viñedos, etc.), aunque presenta el inconveniente de que necesita de una buena cobertura de telefonía móvil que en zonas de montaña, donde se encuentran las masas forestales, suele ser en ocasiones muy deficiente.For this reason, the latter type of devices are mainly used in intensive agricultural systems (citrus, vineyards, etc.), although it has the disadvantage that it needs a good mobile phone coverage than in mountain areas, where the forest stands are located. , is usually very poor sometimes.
Otro inconveniente de los dispositivos de medición continua basados en la tecnología anteriormente referida, sería que el sensor es un elemento desplazable, en donde el desplazamiento es pequeño, del orden de 5 mm, lo que obliga a realizar numerosos desplazamientos a la zona de estudio.
Además de los inconvenientes anteriormente referidos, existe la necesidad de implantar una instalación en el terreno para suministro eléctrico de los equipos y para conectar el dendrómetro a los respectivos registradores de datos, llevando consigo costes, mantenimiento, etc.Another drawback of the continuous measurement devices based on the aforementioned technology, would be that the sensor is a movable element, where the displacement is small, of the order of 5 mm, which forces numerous displacements to the study area. In addition to the aforementioned drawbacks, there is a need to implement a field installation for electrical supply of the equipment and to connect the dendrometer to the respective data loggers, carrying costs, maintenance, etc.
DESCRIPCIÓN DE LA INVENCIÓNDESCRIPTION OF THE INVENTION
El dendrómetro objeto de la invención ha sido concebido para resolver la problemática anteriormente expuesta, ya que por una parte es autónomo al incorporar unas pilas o baterías de larga duración que permiten suministrar la energía eléctrica necesaria, y por otra parte incorpora un sensor cuyo recorrido y desplazamiento es muy amplio, permitiendo operar sin necesidad de acudir cada cierto tiempo a realizar la manipulación oportuna sobre el sensor, como ocurre convencionalmente.The dendrometer object of the invention has been designed to solve the above-mentioned problem, since on the one hand it is autonomous by incorporating long-lasting batteries or batteries that allow the supply of the necessary electrical energy, and on the other hand it incorporates a sensor whose path and Displacement is very wide, allowing operation without the need to go to the sensor on a regular basis, as conventionally occurs.
Concretamente, el dendrómetro de la invención se basa en un sensor de posicionamiento lineal, que transforma variaciones de la posición del correspondiente émbolo del mismo, en contacto con la planta, en diferencias de tensión que son recogidas por un registrador electrónico convenientemente aislado de forma estanca y conectado al sensor, en proximidad a éste, mediante un cable de tres hilos de alta impedancia, de manera tal que la lectura de las variaciones de radio de la planta objeto del estudio o de medición se recoge en forma de voltios, teniendo una relación entre tensión y longitud de 1 mV equivalente a 4 mieras. La precisión del dispositivo viene dada por la capacidad del registrador, al ser el propuesto de 12 bits la resolución resultante es de 0,61 mV que equivalen a 2,44 mieras, lo que permite estudiar las variaciones diarias de la planta debidas al estado hídrico de la misma, al igual que el crecimiento radial acumulado del tronco o
ramas y la duración del periodo vegetativo.Specifically, the dendrometer of the invention is based on a linear positioning sensor, which transforms variations of the position of the corresponding piston thereof, in contact with the plant, in voltage differences that are collected by an electronic recorder conveniently insulated in a sealed manner. and connected to the sensor, in proximity to it, by means of a three-wire cable of high impedance, so that the reading of the radio variations of the plant object of the study or measurement is collected in the form of volts, having a relationship between voltage and length of 1 mV equivalent to 4 microns. The accuracy of the device is given by the capacity of the recorder, since the proposed 12-bit one is the resulting resolution of 0.61 mV equivalent to 2.44 microns, which allows to study the daily variations of the plant due to the hydric state of the same, like the accumulated radial growth of the trunk or branches and the duration of the vegetative period.
El sensor de posicionamiento lineal, que constituye un potenciómetro resistivo, se fija a la planta que se desea medir mediante un soporte que, en troncos de notable diámetro, está constituido por un perfil enThe linear positioning sensor, which constitutes a resistive potentiometer, is fixed to the plant that you want to measure by means of a support that, in trunks of remarkable diameter, is constituted by a profile in
"L" , al que se fija mediante correspondientes tornillos el sensor anteriormente comentado, contando además con tornillos extremos y de doble rosca para, por un lado, fijarse al tronco del árbol o planta de que se trate, y por otro lado para permitir la fijación regulada de esos tornillos mediante correspondientes tuercas."L", to which the previously mentioned sensor is fixed by means of corresponding screws, also having double-threaded end screws to, on the one hand, be fixed to the trunk of the tree or plant in question, and on the other hand to allow regulated fixing of these screws by corresponding nuts.
Entre las numerosas ventajas que ofrece el dendrómetro de la invención, pueden citarse como más importantes las siguientes:Among the numerous advantages offered by the dendrometer of the invention, the following may be mentioned as more important:
Se ve facilitado el estudio del crecimiento de plantas, tanto de órganos leñosos (troncos, ramas, etc.), como frutos, siempre y cuando tengan el tamaño y la resistencia suficiente como para soportar los elementos que constituyen el propio dendrómetro.It is facilitated the study of the growth of plants, both woody organs (trunks, branches, etc.), as fruits, as long as they have sufficient size and resistance to support the elements that constitute the dendrometer itself.
- Puede ser utilizado indistintamente para especies forestales y agronómicas.- It can be used interchangeably for forest and agronomic species.
Es un dispositivo que resulta económico y sencillo de instalar.It is a device that is economical and easy to install.
- Es resistente a las inclemencias meteorológicas, pues ha sido testado durante largos períodos de tiempo tanto en zonas cálidas como en zonas frías, es decir con elevadas temperaturas, fuertes heladas y nevadas, habiendo soportado con total efectividad los ensayos realizados.
Ofrece una gran autonomía, ya que se pueden recoger datos continuos de crecimiento durante un año sin necesidad de mantenimiento, lo que evita los desplazamientos continuos para los ensayos, en virtud de la batería o pilas utilizadas en el dendrómetro.- It is resistant to inclement weather, since it has been tested for long periods of time in both hot and cold areas, that is, with high temperatures, heavy frosts and snowfalls, having fully supported the tests performed. It offers great autonomy, since continuous growth data can be collected for one year without maintenance, which avoids continuous displacements for the tests, by virtue of the battery or batteries used in the dendrometer.
El registrador electrónico recoge datos con intervalos de tiempo fácilmente programables y reducidos, ofreciendo dicho registrador una memoria capaz de almacenar hasta 450 días de datos si la recogida se realiza cada 15 minutos de un sólo sensor.The electronic logger collects data with easily programmable and reduced time intervals, said logger offering a memory capable of storing up to 450 days of data if the collection is made every 15 minutes of a single sensor.
El conjunto se fija y queda situado sobre la propia planta (tronco del árbol), sin necesidad de que haya cables en el suelo, ni placas solares, ni ningún otro sistema de instalación eléctrica.The set is fixed and is located on the plant itself (tree trunk), without the need for cables on the ground, or solar panels, or any other electrical installation system.
- Es fácilmente adaptable al tamaño de la planta, con solo modificar los medios de anclaje, permitiendo medir crecimiento de árboles de gran tamaño, pequeño tamaño, ramas e incluso frutos tales como pinas.- It is easily adaptable to the size of the plant, just by modifying the anchoring means, allowing to measure the growth of large trees, small size, branches and even fruits such as pine trees.
- Admite la conexión de otros dispositivos de medición de humedad y temperatura del suelo, lo que posibilita analizar la influencia de variables edáficas y climáticas en el crecimiento y estado hídrico de la planta.- It admits the connection of other soil moisture and temperature measurement devices, which makes it possible to analyze the influence of edaphic and climatic variables on the growth and hydric state of the plant.
DESCRIPCIÓN DE LOS DIBUJOSDESCRIPTION OF THE DRAWINGS
Para complementar la descripción que seguidamente se va realizar y con objeto de ayudar a una mejor comprensión de las características del invento, de acuerdo con un ejemplo preferente de realización práctica del
mismo, se acompaña como parte integrante de dicha descripción, un juego de dibujos en donde con carácter ilustrativo y no limitativo, se ha representado lo siguiente:To complement the description that will then be made and in order to help a better understanding of the features of the invention, according to a preferred example of practical implementation of the It is also accompanied as an integral part of this description, a set of drawings in which the following has been represented as illustrative and not limited:
La figura 1.- Muestra una vista en planta del dendrómetro de la invención previsto para la medición de árboles de diámetro grande.Figure 1 shows a plan view of the dendrometer of the invention provided for the measurement of large diameter trees.
La figura 2.- Muestra una vista en perspectiva de la aplicación práctica del dendrómetro de la figura anterior sobre el tronco de un árbol, viéndose además la conexión al mismo del registrador electrónico, sujeto asimismo al citado tronco del árbol.Figure 2.- Shows a perspective view of the practical application of the dendrometer of the previous figure on the trunk of a tree, the connection to the electronic logger being also seen, also subject to said tree trunk.
REALIZACIÓN PREFERENTE DE LA INVENCIÓNPREFERRED EMBODIMENT OF THE INVENTION
Como se puede ver en las figuras referidas, el dendrómetro de la invención comprende un sensor de posicionamiento lineal (1), con un émbolo (2) desplazable y con una conexión (3) para cable de tres hilos de conexión a un registrador electrónico (4), el cual va integrado en una caja estanca para protegerlo de la humedad. Dicho registrador (4) está previsto para recoger las diferencias de tensión proporcionadas por el sensor (1) como elemento de transformación de las variaciones de la posición de su émbolo (2) en las diferencias de tensión comentadas.As can be seen in the aforementioned figures, the dendrometer of the invention comprises a linear positioning sensor (1), with a movable piston (2) and with a connection (3) for three-wire cable connecting to an electronic recorder ( 4), which is integrated in a waterproof case to protect it from moisture. Said recorder (4) is provided to collect the voltage differences provided by the sensor (1) as an element of transforming the variations of the position of its piston (2) in the mentioned voltage differences.
El referido sensor (1) constituye un potenciómetro resistivo de 5 k? , mientras que el registrador electrónico (4) es de 12 bits, con una tensión de lectura de 0-2,5 voltios.The referred sensor (1) constitutes a 5 k resistive potentiometer? , while the electronic recorder (4) is 12 bits, with a reading voltage of 0-2.5 volts.
En su aplicación sobre la planta, como se ve en la figura 2, concretamente sobre el tronco (5) de un árbol de mas de 20 cm. de diámetro,
se ha previsto que el sensor (1) vaya montado sobre un soporte constituido por un perfil en "L" (6) con tornillos de doble rosca (7) para, por un lado, fijarse al tronco (5) y por otro para efectuar el correspondiente ajuste mediante tuercas (8), yendo situado ese perfil (6) de forma tangencial al tronco (5), aunque separado del mismo para que el émbolo (2) del sensor (1) quede en contacto con el propio tronco (5). El sensor (1) referido queda fijado al soporte constituido por el perfil (6) mediante correspondientes tornillos y tuercas (10).In its application on the plant, as seen in Figure 2, specifically on the trunk (5) of a tree of more than 20 cm. diameter, it is provided that the sensor (1) is mounted on a support constituted by a "L" profile (6) with double threaded screws (7) to, on the one hand, be fixed to the trunk (5) and on the other to make the corresponding adjustment by means of nuts (8), this profile (6) being placed tangentially to the trunk (5), although separated from it so that the plunger (2) of the sensor (1) is in contact with the trunk itself (5) ). The referred sensor (1) is fixed to the support constituted by the profile (6) by means of corresponding screws and nuts (10).
Por otro lado, tal y como se representa en la figura 2, el sensorOn the other hand, as shown in Figure 2, the sensor
(1) está conectado con el registrador (4), incluido en una caja estanca, a través del cableado (9), cuya caja estanca está igualmente sujeta al tronco del árbol, en proximidad al sensor (1), mediante goma elástica.(1) is connected to the recorder (4), included in a waterproof box, through the wiring (9), whose waterproof box is also attached to the tree trunk, in proximity to the sensor (1), by elastic rubber.
Finalmente decir que el soporte para el sensor (1), será de características variables en estructura, configuración y peso, dependiendo de la resistencia de la planta objeto de medición.
Finally, say that the support for the sensor (1) will be of variable characteristics in structure, configuration and weight, depending on the resistance of the plant being measured.
Claims
R E I V I N D I C A C I O N E SR E I V I N D I C A C I O N E S
Ia.- Dendrómetro, que estando previsto para la medición de la variación del grosor de las plantas, ya sea el tronco, ramas e incluso frutos, se caracteriza porque se constituye a partir de un sensor de posicionamiento lineal, con un émbolo de largo recorrido cuyas variaciones de posición son transformadas en variaciones de tensión aplicables a un registrador electrónico conectado al propio sensor, habiéndose previsto un soporte de características variables para fijación del sensor sobre el respectivo elemento a medir (tronco, rama o fruto).I a .- Dendrometer, which is intended for the measurement of the variation of the thickness of the plants, whether the trunk, branches and even fruits, is characterized in that it is constituted from a linear positioning sensor, with a long plunger path whose position variations are transformed into voltage variations applicable to an electronic recorder connected to the sensor itself, having provided a support of variable characteristics for fixing the sensor on the respective element to be measured (trunk, branch or fruit).
2a.- Dendrómetro, según reivindicación Ia, caracterizado porque el sensor, aplicable en la medición de troncos de elevado grosor, va montado sobre el respectivo soporte de fijación al elemento a medir, mediante tornillos con doble roscado para fijación al tronco a medir y para fijar el sensor al propio soporte, respectivamente, estando dicho soporte constituido por un perfil en "L" dispuesto de forma tangencial al tronco a medir, con una separación respecto a éste para permitir el apoyo del extremo del émbolo del sensor sobre el elemento o tronco a medir.2 .- Dendrometer according to claim I, wherein the sensor is applicable in measuring trunks high thickness, is mounted on the respective bracket element to be measured, using screws with double screw for securing the trunk to measure and to fix the sensor to the support itself, respectively, said support being constituted by a "L" profile arranged tangentially to the trunk to be measured, with a separation from it to allow the support of the end of the sensor piston on the element or trunk to measure.
3 a,- Dendrómetro, según reivindicaciones anteriores, caracterizado porque incluye una batería o pila de gran autonomía para el suministro de la energía eléctrica requerida en el funcionamiento.3 a , - Dendrometer, according to previous claims, characterized in that it includes a battery or battery of great autonomy for the supply of the electrical energy required in the operation.
4a,- Dendrómetro, según reivindicación Ia, caracterizado porque el registrador electrónico va integrado en una caja estanca y se dispone en proximidad al propio sensor, vinculado igualmente al correspondiente elemento a medir.
4, - Dendrometer according to claim I, characterized in that the electronic recorder is integrated into a sealed box and is arranged in proximity to the sensor itself, also linked to the corresponding element to be measured.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ESU200800839 | 2008-04-22 | ||
| ES200800839U ES1067763Y (en) | 2008-04-22 | 2008-04-22 | DENDROMETER |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009130348A1 true WO2009130348A1 (en) | 2009-10-29 |
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ID=39469878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2009/000218 WO2009130348A1 (en) | 2008-04-22 | 2009-04-21 | Dendrometer |
Country Status (2)
| Country | Link |
|---|---|
| ES (1) | ES1067763Y (en) |
| WO (1) | WO2009130348A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011076965A1 (en) * | 2009-12-23 | 2011-06-30 | Universidad De Zaragoza | Electronic dendrometer |
| CN102980483A (en) * | 2012-11-16 | 2013-03-20 | 无锡麦铁精密机械制造有限公司 | Self-locating outer diameter checking fixture |
| WO2023034380A1 (en) * | 2021-09-01 | 2023-03-09 | Eplant, Inc. | Smart dendrometers for tracking plant growth |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI20227106A1 (en) * | 2022-08-09 | 2024-02-10 | Pjk Forest Tech Oy | A method for calibrating the log thickness measurement device of a forest harvester and an apparatus for measuring the diameter of a tree |
-
2008
- 2008-04-22 ES ES200800839U patent/ES1067763Y/en not_active Expired - Fee Related
-
2009
- 2009-04-21 WO PCT/ES2009/000218 patent/WO2009130348A1/en active Application Filing
Non-Patent Citations (2)
| Title |
|---|
| "ECOMATIK DENDROMETER.", Retrieved from the Internet <URL:http://web.archive.org/web/20050321173903/www.ecomatik.de/Dendrometer_EN.htm> * |
| A. BREITSPRECHER ET AL.: "A Recording Dendrometer for Humid Environments", BIOTROPICA, vol. 7, no. 2, July 1975 (1975-07-01), pages 90 - 99 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011076965A1 (en) * | 2009-12-23 | 2011-06-30 | Universidad De Zaragoza | Electronic dendrometer |
| CN102980483A (en) * | 2012-11-16 | 2013-03-20 | 无锡麦铁精密机械制造有限公司 | Self-locating outer diameter checking fixture |
| CN102980483B (en) * | 2012-11-16 | 2016-08-24 | 无锡麦铁精密机械制造有限公司 | A kind of self-align testing fixture for external diameter |
| WO2023034380A1 (en) * | 2021-09-01 | 2023-03-09 | Eplant, Inc. | Smart dendrometers for tracking plant growth |
Also Published As
| Publication number | Publication date |
|---|---|
| ES1067763U (en) | 2008-06-16 |
| ES1067763Y (en) | 2008-09-16 |
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