JP6843446B2 - measuring device - Google Patents
measuring device Download PDFInfo
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- JP6843446B2 JP6843446B2 JP2019136555A JP2019136555A JP6843446B2 JP 6843446 B2 JP6843446 B2 JP 6843446B2 JP 2019136555 A JP2019136555 A JP 2019136555A JP 2019136555 A JP2019136555 A JP 2019136555A JP 6843446 B2 JP6843446 B2 JP 6843446B2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 238000005259 measurement Methods 0.000 claims description 25
- 239000012466 permeate Substances 0.000 claims description 8
- 238000001704 evaporation Methods 0.000 description 26
- 230000008020 evaporation Effects 0.000 description 25
- 238000009423 ventilation Methods 0.000 description 16
- 230000002093 peripheral effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 244000144972 livestock Species 0.000 description 3
- 238000009834 vaporization Methods 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000005373 porous glass Substances 0.000 description 1
- 238000009374 poultry farming Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Landscapes
- Storage Of Harvested Produce (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Description
この発明は、農業、畜産、養鶏等においては動植物の生育が一番の関心事で有り、その影響を左右する気温、湿球温度、蒸発量を測定する装置に関するものである。 The present invention relates to an apparatus for measuring air temperature, wet-bulb temperature, and evaporation amount, which are of the utmost concern in the growth of animals and plants in agriculture, livestock, poultry farming, and the like.
従来、気温、湿球温度、蒸発量はそれぞれ専用の機器で測定していた。例えば、気温の測定には温度センサー、湿度の測定には湿度センサーが必要であった。また、気温や湿度を正確に測定するには、センサーに日射や輻射熱が影響しないように日除けを設け、さらに周囲の空気と平衡状態にするためにファンを使って強制的に風を当てる強制通風が必要であった。 Conventionally, the air temperature, the wet-bulb temperature, and the amount of evaporation have been measured by dedicated devices. For example, a temperature sensor was required to measure air temperature, and a humidity sensor was required to measure humidity. In addition, in order to measure temperature and humidity accurately, the sensor is provided with a shade so that it is not affected by solar radiation or radiant heat, and forced ventilation is forced using a fan to balance it with the surrounding air. Was needed.
直径１２０ｃｍの蒸発パンに水を張り、水位計で水位の低下量を測定し、蒸発量を測定していた。蒸発量の測定を改善するために特開２０００−７５０５１号公報の蒸発計が提案されている。
この蒸発計は、計測前後の蒸発量による重量変化を秤で計測しているので別途秤が必要で有り、いちいち外して測るなど計測が面倒である。また、筒先端が丸められた例えば試験管の底のような形状のポーラスカップであるため、通常の蒸発量測定と蒸発量が異なる可能性がある。さらに、毛細管で容器内の水面より高い位置にあるポーラスカップに水を供給するため、この毛細管が壊れたり、毛細管内の水の連続性が絶たれると測定できなくなる虞がある。
Water was filled in an evaporation pan having a diameter of 120 cm, and the amount of decrease in water level was measured with a water level gauge to measure the amount of evaporation. An atmometer of JP-A-2000-75051 has been proposed in order to improve the measurement of the amount of evaporation.
Since this atmometer measures the weight change due to the amount of evaporation before and after the measurement with a scale, a separate scale is required, and it is troublesome to measure by removing each one. Further, since the porous cup has a rounded tip, for example, a shape like the bottom of a test tube, the amount of evaporation may differ from that of a normal measurement of the amount of evaporation. Further, since the capillary tube supplies water to the porous cup located at a position higher than the water surface in the container, there is a risk that measurement cannot be performed if the capillary tube is broken or the continuity of the water in the capillary tube is broken.
そこで、蒸発量の測定が一体として行える自然通風湿式シェルター及び気温、湿球温度までをも測定し得る測定装置を提供することを目的としている。 Therefore, it is an object of the present invention to provide a natural ventilation wet shelter capable of measuring the amount of evaporation as a unit and a measuring device capable of measuring the air temperature and the wet-bulb temperature.
この目的を達成するために、本発明の自然通風湿式シェルターは、上部開口及び下部開
口を有し、表面に計測目盛が付けられた筒状部材と、該筒状部材の前記下部開口を塞ぎ、
前記筒状部材に水を貯留し，該水を浸透させ蒸発させる多孔質板状部材と、前記筒状部材
の前記上部開口を塞ぐ栓とを備えたことを特徴としている。
さらに、本発明の測定装置は、上部開口及び下部開口を有し、表面に計測目盛が付けられた筒状部材と、該筒状部材の前記下部開口を塞ぎ、前記筒状部材に水を貯留し，該水を浸透させ蒸発させる多孔質板状部材と、前記筒状部材の前記上部開口を塞ぐ栓と、前記筒状部材の底で前記多孔質板状部材に接して置かれた温度センサー及び／又は前記多孔質板状部材の下側で１ｃｍ離間して置かれた温度センサーとを備えたことを特徴としている。
In order to achieve this object, the natural ventilation wet shelter of the present invention closes a tubular member having an upper opening and a lower opening and having a measurement scale on the surface, and the lower opening of the tubular member.
It is characterized by including a porous plate-shaped member that stores water in the tubular member and permeates and evaporates the water, and a stopper that closes the upper opening of the tubular member.
Further, the measuring device of the present invention closes a tubular member having an upper opening and a lower opening and having a measurement scale on the surface and the lower opening of the tubular member, and stores water in the tubular member. A porous plate-like member that permeates and evaporates the water, a stopper that closes the upper opening of the tubular member, and a temperature sensor placed in contact with the porous plate-like member at the bottom of the tubular member. And / or provided with a temperature sensor placed 1 cm apart on the underside of the porous plate-like member.
本発明によれば、蒸発量の測定が一体として行える自然通風湿式シェルター及び気温、湿球温度までをも測定し得る測定装置を提供することができる。 According to the present invention, it is possible to provide a natural ventilation wet shelter capable of measuring the amount of evaporation as a unit and a measuring device capable of measuring air temperature and wet-bulb temperature.
以下、本発明を良好な実施例を示す図面に基づいて説明する。 Hereinafter, the present invention will be described with reference to drawings showing good examples.
図１ないし図３には、本発明に関する自然通風湿式シェルター１０及び気温、湿球温度までをも測定し得る測定装置１００が示されている。
《自然通風湿式シェルター》
自然通風湿式シェルター１０は、大きく筒状部材１１，多孔質板状部材１２及び栓１５で構成されている。筒状部材１１は水Ｗを浸透させない透明の素材で作られ、上部開口１１ａ及び下部開口１１ｂを有し、表面に計測目盛１１ｃが付けられている。
1 to 3 show a natural ventilation wet shelter 10 according to the present invention and a measuring device 100 capable of measuring air temperature and wet-bulb temperature.
《Natural ventilation wet shelter》
The natural ventilation wet shelter 10 is largely composed of a tubular member 11, a porous plate-shaped member 12, and a stopper 15. The tubular member 11 is made of a transparent material that does not allow water W to permeate, has an upper opening 11a and a lower opening 11b, and has a measurement scale 11c on the surface.
ここに筒状部材１１は、筒の断面形状は四角でも、三角でも良いが、製作性、取り扱い性から断面円形の円筒を採用している。 Here, as the tubular member 11, the cross-sectional shape of the cylinder may be square or triangular, but a cylinder having a circular cross section is adopted from the viewpoint of manufacturability and handleability.
素材は、中の水位ＷＬを見るために透明性が必要で、ガラス、アクリル等も考えられるが、壊れにくく安価である点などから塩化ビニル樹脂が好ましい。したがって、筒状部材１１は透明塩ビ管を用いることが好ましい。 As the material, transparency is required to see the water level WL inside, and glass, acrylic, etc. can be considered, but vinyl chloride resin is preferable because it is hard to break and inexpensive. Therefore, it is preferable to use a transparent PVC pipe for the tubular member 11.
透明性は、材料が不透明なものであっても計測目盛１１ｃが付されている縦方向の部分に地を透明にするものを張り付け或いは加工することによって透明が確保されればよい。 Even if the material is opaque, the transparency may be ensured by attaching or processing a material that makes the ground transparent on the vertical portion to which the measurement scale 11c is attached.
筒状部材１１の下部開口１１ｂには、ここを塞ぎ、筒状部材１１に水Ｗを貯留し，この水Ｗを浸透させ蒸発させる多孔質板状部材１２が接着あるいは差し込みで固定されている。
多孔質板状部材１２は、上記水を浸透させ、蒸発させる材料として、セラミック、紙、布、多孔質のプラスチック、多孔質の金属、多孔質のゴム、多孔質のガラスのいずれかを用い、所望の浸透、蒸発を可能とするように加工している。
多孔質板状部材１２は、図１，図２に示す平板部１３だけで筒状部材１１の下部開口１１ｂに接着等で固定するだけでも良いし、筒状部材１１の内側あるいは外側に嵌め込む嵌め込み部１４を一体に備えていて接続をしっかりとしたものにしても良い。この嵌め込み部14は、水Ｗを湿球温度まで低下させるためのものであり、湿球温度の測定が必要なければ嵌め込み部１４は無くても構わない。
ここに蒸発面積は、外側から嵌め込み部１４を嵌め込んだ場合、平板部１３の下面の面積、平板部１３の上側面積から嵌め込み部１４の内周面積と筒端面の下端面積を引いた面積、平板部１３の厚みの部分の外周面積、嵌め込み部１４の外周面積及び嵌め込み部１４の筒端面の上端面積の和である。また、内側に嵌め込み部を差し込んで嵌めたときには、蒸発面積は、平板部１３の下面の面積、平板部１３の上側面積から嵌め込み部１４の内周面積と筒端面の下端面積を引いた面積、平板部１３の厚みの部分の外周面積及び嵌め込み部１４の外周面積から筒状部材１１が重なっている外周面積を引いた面積の和である。
The lower opening 11b of the tubular member 11 is closed, and a porous plate-shaped member 12 that stores water W in the tubular member 11 and permeates and evaporates the water W is fixed by adhesion or insertion.
The porous plate-shaped member 12 uses any one of ceramic, paper, cloth, porous plastic, porous metal, porous rubber, and porous glass as a material for permeating and evaporating the water. It is processed so as to enable desired penetration and evaporation.
The porous plate-shaped member 12 may be fixed to the lower opening 11b of the tubular member 11 only by the flat plate portion 13 shown in FIGS. 1 and 2, or may be fitted inside or outside the tubular member 11. The fitting portion 14 may be integrally provided to secure the connection. The fitting portion 14 is for lowering the water W to the wet-bulb temperature, and the fitting portion 14 may be omitted if the measurement of the wet-bulb temperature is not necessary.
Here, the evaporation area is the area of the lower surface of the flat plate portion 13 when the fitting portion 14 is fitted from the outside, the area obtained by subtracting the inner peripheral area of the fitting portion 14 and the lower end area of the cylinder end surface from the upper area of the flat plate portion 13. It is the sum of the outer peripheral area of the thick portion of the flat plate portion 13, the outer peripheral area of the fitting portion 14, and the upper end area of the cylinder end surface of the fitting portion 14. Further, when the fitting portion is inserted and fitted inside, the evaporation area is the area of the lower surface of the flat plate portion 13, the area of the upper side of the flat plate portion 13 minus the inner peripheral area of the fitting portion 14 and the lower end area of the cylinder end surface. It is the sum of the outer peripheral area of the thick portion of the flat plate portion 13 and the outer peripheral area of the fitting portion 14 minus the outer peripheral area where the tubular member 11 overlaps.
また、この筒状部材１１は、上部開口１１ａを塞ぐ栓１５を備えている。これにより、水Ｗの水圧で、水Ｗが多孔質板状部材１２から流れ出るのを防いでいる。なお、栓１５は、天然ゴム、合成樹脂でも良いが、耐候性，耐化学薬品性を考えてシリコン製が好ましい。 Further, the tubular member 11 includes a plug 15 that closes the upper opening 11a. As a result, the water pressure of the water W prevents the water W from flowing out from the porous plate-shaped member 12. The stopper 15 may be made of natural rubber or synthetic resin, but is preferably made of silicon in consideration of weather resistance and chemical resistance.
筒状部材１１に計測目盛１１ｃが付けられていることから、いわゆるメスシリンダと同様で水位ＷＬによって蒸発量が一目で分かる。 Since the measurement scale 11c is attached to the tubular member 11, the amount of evaporation can be known at a glance by the water level WL in the same manner as a so-called graduated cylinder.
筒状部材１１の内径を小さくするほど僅かな蒸発量を検出できる。逆に、筒状部材１１の内径を大きくすると多くの水を貯えられ、水を補充せずに長期間測定できる。筒状部材１１は必要に応じて大きさを変えることができ、これに伴い嵌め込み部１４の大きさを変えることが必要となる。また、筒状部材１１と嵌め込み部１４の径が違ってしまう場合には、両端で径の異なる異径ソケットを使って必要に応じて対応することができる。
《測定装置》
測定装置１００は、自然通風湿式シェルター１０に計測記録装置２０を備えさせたものである。計測記録装置２０は、自然通風湿式シェルター１０の筒状部材１１の底、多孔質板状部材１２である平板部１３の上面に接して置かれた温度センサー２１と、多孔質板状部材１２である平板部１３の下側でいくらか、例えば１ｃｍほど離間して置かれた温度センサー２２と、これら温度センサー２１，２２からの計測データを記録保存するデータロガー２３とを備えている。
The smaller the inner diameter of the tubular member 11, the smaller the amount of evaporation can be detected. On the contrary, if the inner diameter of the tubular member 11 is increased, a large amount of water can be stored, and long-term measurement can be performed without replenishing water. The size of the tubular member 11 can be changed as needed, and it is necessary to change the size of the fitting portion 14 accordingly. Further, when the diameters of the tubular member 11 and the fitting portion 14 are different, it is possible to use different diameter sockets having different diameters at both ends as necessary.
"measuring device"
The measuring device 100 is a natural ventilation wet shelter 10 equipped with a measurement recording device 20. The measurement recording device 20 includes a temperature sensor 21 placed in contact with the bottom of the tubular member 11 of the natural ventilation wet shelter 10 and the upper surface of the flat plate portion 13 which is the porous plate-shaped member 12, and the porous plate-shaped member 12. It includes a temperature sensor 22 placed on the lower side of a flat plate portion 13 at a distance of, for example, about 1 cm, and a data logger 23 for recording and storing measurement data from these temperature sensors 21 and 22.
温度センサー２１、２２とデータロガー２３とは適宜接続されている。特に、温度センサー２１とは、筒状部材１１と多孔質板状部材１２の嵌め込み部１４との間、筒状部材１１と栓１５との間に配線されても良い。筒状部材１１に穴を開けて配策しても良い。これらの場合にはしっかりとしたシールが必要である。 The temperature sensors 21 and 22 and the data logger 23 are appropriately connected. In particular, the temperature sensor 21 may be wired between the tubular member 11 and the fitting portion 14 of the porous plate-shaped member 12, and between the tubular member 11 and the stopper 15. A hole may be made in the tubular member 11 for arrangement. A solid seal is required in these cases.
筒状部材１１の上部に例えばバンドクランプ３１が取り付けられ、ここにフック３２を取り付けた吊り下げ部材３３が設けられ、例えば測定装置１００は、横桟４１、縦桟４２で組まれたハウス４０などの横桟４１に吊り下げ部材３３で吊り下げて用いられる。
《使用方法》
図１のような自然通風湿式シェルター１０の多孔質板状部材１２で底をふさがれた筒状部材１１に栓１５を取った状態で水Ｗを入れる。次に栓１５をして多孔質板状部材１２に水Ｗが十分に浸透するのを待つ。
For example, a band clamp 31 is attached to the upper part of the tubular member 11, and a hanging member 33 to which the hook 32 is attached is provided. For example, the measuring device 100 includes a house 40 assembled by a horizontal rail 41 and a vertical rail 42. It is used by being suspended by a hanging member 33 from the cross rail 41 of the above.
"how to use"
Water W is put into the tubular member 11 whose bottom is blocked by the porous plate-shaped member 12 of the natural ventilation wet shelter 10 as shown in FIG. 1 with the stopper 15 removed. Next, the stopper 15 is closed and the porous plate-shaped member 12 is waited for the water W to sufficiently permeate.
この状体の自然通風湿式シェルター１０を図３に示すように所望の測定箇所であるハウス４０などの空間に吊り下げ部材３３で吊り下げて測定準備を整える。 As shown in FIG. 3, the natural ventilation wet shelter 10 of this shape is suspended by a hanging member 33 in a space such as a house 40, which is a desired measurement location, to prepare for measurement.
次に水位ＷＬを読み取り、時刻を記録する。 Next, the water level WL is read and the time is recorded.
蒸発を開始すると、一定時間後に水位ＷＬが下がり、その時の目盛を読むことによって蒸発水量が算出される。蒸発量は、蒸発水量を先に示した蒸発面積で割ることにより算出される。 When evaporation is started, the water level WL drops after a certain period of time, and the amount of evaporated water is calculated by reading the scale at that time. The amount of evaporation is calculated by dividing the amount of evaporated water by the evaporation area shown above.
一方、多孔質板状部材１２からの水Ｗの蒸発による気化潜熱により、多孔質板状部材１２で冷却が起こり、多孔質板状部材１２の温度が湿球温度近くまで低下する。したがって、筒状部材１１の底の多孔質板状部材１２に接して置かれた温度センサー２１は、湿球温度を示している。 On the other hand, the latent heat of vaporization due to the evaporation of water W from the porous plate-shaped member 12 causes cooling of the porous plate-shaped member 12, and the temperature of the porous plate-shaped member 12 drops to near the wet-bulb temperature. Therefore, the temperature sensor 21 placed in contact with the porous plate-shaped member 12 at the bottom of the tubular member 11 indicates the wet-bulb temperature.
また、温度センサー２２は、日中、周囲の物体からの輻射熱を受けて気温より高く示されることになるが、多孔質板状部材１２からの冷気及び放射冷却により輻射熱が相殺される。その結果、簡易な日除けや通常の自然通風シェルターを使っての気温測定よりも正確な気温の測定ができる。 Further, the temperature sensor 22 receives radiant heat from surrounding objects during the day and is displayed higher than the air temperature, but the radiant heat is canceled by the cold air and radiative cooling from the porous plate-shaped member 12. As a result, it is possible to measure the temperature more accurately than using a simple awning or a normal natural ventilation shelter.
計測記録装置２０は、この温度センサー２１，２２のデータをデータロガー２３に送り、集約記録保存される。 The measurement recording device 20 sends the data of the temperature sensors 21 and 22 to the data logger 23, and aggregates and records and saves the data.
相対湿度を求める必要があるならば、ここで得られた気温と湿球温度から計算で得られる。 If you need to find the relative humidity, you can calculate it from the air temperature and wet-bulb temperature obtained here.
以上要するに、本発明の自然通風湿式シェルターによれば、気温、相対湿度、湿球温度及び蒸発量を個別の測器で測定する必要はなく、蒸発量の測定が一体としてその場での容易な測定が出来る。 In short, according to the natural ventilation wet shelter of the present invention, it is not necessary to measure the air temperature, relative humidity, wet-bulb temperature and evaporation amount with individual measuring instruments, and the evaporation amount can be easily measured on the spot as a whole. Can be measured.
また、本発明の測定装置によれば、気温の測定に関しては、気化潜熱により冷気の生成及び放射冷却を惹起させ、周囲の物体からの輻射熱を相殺させるという従来とは全く異なる発想で正確性を期することが出来た。 Further, according to the measuring device of the present invention, the measurement of the air temperature is accurate with a completely different idea from the conventional idea that the latent heat of vaporization induces the generation of cold air and radiative cooling to cancel the radiant heat from surrounding objects. I was able to expect it.
また、湿球温度の計測に関しては、気化潜熱により多孔質板状部材の温度が湿球温度近くまで低下することを観測から見いだし、この測定を可能とした。 Regarding the measurement of the wet-bulb temperature, it was found from the observation that the temperature of the porous plate-shaped member drops to near the wet-bulb temperature due to the latent heat of vaporization, and this measurement was made possible.
さらに、多孔質板状部材からの蒸発量と小型蒸発パンで測定した蒸発量に相関関係があることを見いだした点に新規性がある。 Furthermore, there is novelty in finding that there is a correlation between the amount of evaporation from the porous plate-shaped member and the amount of evaporation measured with a small evaporation pan.
電源を必要とすることなく気温、湿球温度、蒸発量を簡単に測定できるため、任意の箇所で測定でき、温室、ハウス、畜舎等の農業、畜産の分野に利用が可能である。 Since the temperature, wet-bulb temperature, and evaporation amount can be easily measured without the need for a power source, it can be measured at any location and can be used in the fields of agriculture and livestock such as greenhouses, houses, and livestock barns.
１０：自然通風湿式シェルター
１１：筒状部材
１１ａ：上部開口
１１ｂ：下部開口
１１ｃ：計測目盛
１２：多孔質板状部材
１３：平板部
１４：嵌め込み部
１５：栓
２０：計測記録装置
２１：温度センサー
２２：温度センサー
２３：データロガー
１００：測定装置
Ｗ：水
ＷＬ：水位
10: Natural ventilation wet shelter 11: Cylindrical member 11a: Upper opening 11b: Lower opening 11c: Measurement scale 12: Porous plate-shaped member 13: Flat plate part 14: Fitting part 15: Plug 20: Measurement recording device 21: Temperature sensor 22: Temperature sensor 23: Data logger 100: Measuring device W: Water WL: Water level
Claims (4)
該筒状部材の前記下部開口を塞ぎ、前記筒状部材に水を貯留し，該水を浸透させ蒸発させる多孔質板状部材と、
前記筒状部材の前記上部開口を塞ぐ栓と、
前記筒状部材の底で前記多孔質板状部材に接して置かれた温度センサー及び／又は前記多孔質板状部材の下側で１ｃｍ離間して置かれた温度センサーとを備えたことを特徴とする測定装置。 A tubular member having an upper opening and a lower opening and having a measurement scale on the surface,
A porous plate-like member that closes the lower opening of the tubular member, stores water in the tubular member, and permeates and evaporates the water.
A stopper that closes the upper opening of the tubular member,
It is characterized by including a temperature sensor placed in contact with the porous plate-shaped member at the bottom of the tubular member and / or a temperature sensor placed 1 cm apart under the porous plate-shaped member. Measuring device.
該筒状部材の前記下部開口を塞ぎ、前記筒状部材に水を貯留し，該水を浸透させ蒸発させる多孔質板状部材と、 A porous plate-shaped member that closes the lower opening of the tubular member, stores water in the tubular member, and permeates and evaporates the water.
前記筒状部材の前記上部開口を塞ぐ栓と、 A stopper that closes the upper opening of the tubular member,
前記筒状部材の底で前記多孔質板状部材に接して置かれた温度センサーとを備えたことを特徴とする測定装置。 A measuring device including a temperature sensor placed in contact with the porous plate-shaped member at the bottom of the tubular member.
該筒状部材の前記下部開口を塞ぎ、前記筒状部材に水を貯留し，該水を浸透させ蒸発させる多孔質板状部材と、 A porous plate-like member that closes the lower opening of the tubular member, stores water in the tubular member, and permeates and evaporates the water.
前記筒状部材の前記上部開口を塞ぐ栓と、 A stopper that closes the upper opening of the tubular member,
前記筒状部材の底で前記多孔質板状部材に接して置かれた温度センサー及び前記多孔質板状部材の下側で１ｃｍ離間して置かれた温度センサーとを備えたことを特徴とする測定装置。 It is characterized by including a temperature sensor placed in contact with the porous plate-shaped member at the bottom of the tubular member and a temperature sensor placed 1 cm apart under the porous plate-shaped member. measuring device.
前記筒状部材には、吊り下げ部材が設けられていることを特徴とする測定装置。
In the measuring device according to any one of claims 1 to 3.
A measuring device characterized in that the tubular member is provided with a hanging member.
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| JPS5289962A (en) * | 1976-01-22 | 1977-07-28 | Ito Kanematsu | Device for measuring evaporation from water surface |
| US4412447A (en) * | 1981-07-23 | 1983-11-01 | Mcmahan Walter C | Disposable irrigation gauge |
| JPS59129066A (en) * | 1982-12-07 | 1984-07-25 | 株式会社 ナプコ | Method and apparatus for uniformly evaporating liquid perfume |
| US4509361A (en) * | 1983-11-30 | 1985-04-09 | Johnson Lonnie G | Soil moisture potential determination by weight measurement |
| JPH0239158U (en) * | 1988-09-08 | 1990-03-15 | ||
| JPH0643663U (en) * | 1992-11-11 | 1994-06-10 | 玲樹 高橋 | Evaporation meter that can visually understand the state of evaporation |
| JPH06249796A (en) * | 1993-02-26 | 1994-09-09 | Tokyo Keisoku Kk | Apparatus and method for measuring moisture evaporation amount |
| JP2000005135A (en) * | 1998-06-19 | 2000-01-11 | Nikkiso Ysi Kk | Water evaporation amount measuring device |
| JP3644623B2 (en) * | 1998-08-26 | 2005-05-11 | 株式会社ウイジン | Evaporometer |
| JP4840803B2 (en) * | 2006-01-18 | 2011-12-21 | 独立行政法人農業・食品産業技術総合研究機構 | Soil moisture measuring method and measuring device in low moisture region |
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