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VASCULAR BUNDLE LIQUID FLOW RATE SENSOR AND METHOD FOR MANUFACTURING VASCULAR BUNDLE LIQUID FLOW RATE SENSOR NEW

外国特許コード F180009565
整理番号 (S2017-0033-N0)
掲載日 2018年11月5日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2018JP007693
国際公開番号 WO 2018168483
国際出願日 平成30年3月1日(2018.3.1)
国際公開日 平成30年9月20日(2018.9.20)
優先権データ
  • 特願2017-046926 (2017.3.13) JP
発明の名称 (英語) VASCULAR BUNDLE LIQUID FLOW RATE SENSOR AND METHOD FOR MANUFACTURING VASCULAR BUNDLE LIQUID FLOW RATE SENSOR NEW
発明の概要(英語) The purpose of the present invention is to provide a vascular bundle liquid flow rate sensor that can be manufactured at a low cost while having dimensions at which the flow rate of a vascular bundle liquid in a stem of a plant or the like can be measured. This vascular bundle liquid flow rate sensor (1) includes a heater sensor (HS) and a reference sensor (RS). The heater sensor (HS) is provided with: a first probe part (10a) comprising a heat transfer plate (11) and a probe (12); a heater (20); a first temperature sensor (30a); and a first case (40a) accommodating therein the heat transfer plate (11), the heater (20), and the first temperature sensor (30a). The reference sensor (RS) is provided with: a second probe part (10b) comprising a heat transfer plate (11) and a probe (12); a second temperature sensor; and a second case (40b) accommodating therein the heat transfer plate (11) and the second temperature sensor (30b). Each of the first probe part (10a) and the second probe part (10b) is formed of a metallic material.
従来技術、競合技術の概要(英語) BACKGROUND ART
The production of crops and plants and the like, from the viewpoint of enhancing the productivity growth of the plants at an appropriate timing according to the state of irrigation to supply nutrients and needs to be performed.Therefore, does not interfere with the growth of the plants, the growth condition can be accurately grasped becomes very important.
In general, many agricultural site, the non-rainfall days, the weather, based on a temperature change or the like, experience and intuition to grasp the state of growth of the plants in the situation.However, growth of the plants by a method based on experience and manage the situation, such time and labor and requires skill.In addition, a reference index based on personal experience or the like.Therefore, the growth of the plants on the basis of experience as a method to grasp the state, it is difficult to conveniently carried out by anyone.
On the other hand, in recent years, plant crops and trees based on the biometric information for fertilization and moisture control of the variety of techniques have been developed.Granier in the measurement method using the method has attracted attention.In addition, a method of measuring the flow rate of the pulse signal causes a method has also been known (for example, Patent Document 1).
Is Patent Document 1, the master tree is formed by a drill or the like can be placed in the holes 3 and 1 of the rod-like temperature sensor is a device comprising a rod-shaped heater of the present invention has been disclosed.Then, in the Patent Document 1, a temperature sensor and a rod-shaped heater of the device formed in the side members of the tree and placed in the hole, after the lapse of a predetermined period of time based on the temperature difference between the two sensors in a tree which causes a flowing through the flow rate of the disclosed technology.
However, the apparatus of Patent Document 1, in the first place which causes a relatively large diameter stems in the tree in order to measure the flow rate of the flows have been developed and, used in the apparatus having a rod-shaped sensor of certain magnitude.Therefore, the apparatus of Patent Document 1, it leads to new sugar or the like stems, the stems of the order of several mm is difficult to apply to the case.
To grasp the state of growth of the plant, the plant can grasp the vascular flow rate of liquid is important.In particular, such as crops and plants to improve the productivity and quality is, and fruit sugar end of the new plant, such as a stem connected thereto, of the order of a few mm thickness of the vascular fluid flow is very important to grasp.
Therefore, the present inventors, new sugar fruit or plant of the terminal such as the kinetics of the liquid flowing in the details of the vascular (kinetics of liquid fertilizer or moisture) sensor can measure the dynamic moisture plant (Patent Document 2) are contemplated.Patent Document 2 is, like the new sugar fruit can be piercing end and formed to the moisture probe motion sensor comprises a plant has been disclosed.The probe is disposed penetrating the stem of the plant or the like, by making use of dynamic moisture granier (vascular fluid flow rate and direction) can be measured.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
  • 発明者(英語)
  • Futo Shimokawa
  • Hideki Takao
  • Kyohei Terao
  • Hidenori Yoshimura
  • Go Kobayashi
  • Ikuo Kataoka
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG

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