JPH024855B2 - - Google Patents
Info
- Publication number
- JPH024855B2 JPH024855B2 JP55019695A JP1969580A JPH024855B2 JP H024855 B2 JPH024855 B2 JP H024855B2 JP 55019695 A JP55019695 A JP 55019695A JP 1969580 A JP1969580 A JP 1969580A JP H024855 B2 JPH024855 B2 JP H024855B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- wet
- bulb temperature
- dry
- water supply
- 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.)
- Expired - Lifetime
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/56—Investigating or analyzing materials by the use of thermal means by investigating moisture content
- G01N25/62—Investigating or analyzing materials by the use of thermal means by investigating moisture content by psychrometric means, e.g. wet-and-dry bulb thermometers
- G01N25/64—Investigating or analyzing materials by the use of thermal means by investigating moisture content by psychrometric means, e.g. wet-and-dry bulb thermometers using electric temperature-responsive elements
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Control Of Non-Electrical Variables (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、乾湿球湿度計測装置における乾湿球
温度検知部に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a wet and dry bulb temperature detection section in a wet and dry bulb humidity measuring device.
（従来の技術）
従来、通気管中に乾球用水銀温度計と吸水材が
被覆された湿球用水銀温度計を設け、該吸水材に
スポイトで給水するようにしたアスマン通風乾湿
球湿度計が知られている。(Prior Art) Conventionally, the Assmann ventilated wet-bulb hygrometer has a dry-bulb mercury thermometer and a wet-bulb mercury thermometer covered with a water-absorbing material installed in a ventilation pipe, and water is supplied to the water-absorbing material with a dropper. It has been known.
（発明が解決しようとする問題点）
従来の上記した湿度計は、高い精度で湿度を測
定することができるが、前記吸水材を長時間に亘
つて湿らせるためには継続的にスポイトで吸水材
に給水しなければならないから、湿度のの連続記
録や自動制御に用いるのは困難であつた。(Problems to be Solved by the Invention) The conventional hygrometer described above can measure humidity with high accuracy, but in order to moisten the water absorbing material for a long time, it is necessary to continuously absorb water with a dropper. Since water must be supplied to the wood, it has been difficult to use it for continuous humidity recording or automatic control.
本発明は、従来のこのような不都合を解消する
乾湿球湿度計測装置における乾湿球温度検知部を
提供することをその目的としたものである。 SUMMARY OF THE INVENTION An object of the present invention is to provide a psychrometric and wet bulb temperature detection section in a psychrometric and wet bulb humidity measuring device that eliminates such conventional inconveniences.
（問題点を解決するための手段）
本発明は、上記の目的を達成するために、乾球
温度と湿球温度から相対湿度を算出する乾湿球湿
度計測装置において、ブロアモータにより風が流
入するようにされた通気管の開孔に面して吸水材
が被覆された湿球用温度一電気変換素子と乾球用
温度−電気変換素子を配置し、給水タンク内に一
端が挿入された毛細管ホースの他端を前記吸水材
に給水可能に配置して成り、該給水タンクは初期
送水用ゴムキヤツプが取付けられた開口を有し、
前記通気管の開孔の付近の気圧は、前記ブロアモ
ータの作動時、前記給水タンクの水面における気
圧より低くなることを特徴とする。(Means for Solving the Problems) In order to achieve the above object, the present invention provides a wet and dry bulb humidity measuring device that calculates relative humidity from dry bulb temperature and wet bulb temperature. A capillary hose with one end inserted into the water tank, with a wet bulb temperature-electrical conversion element and a dry bulb temperature-electrical conversion element coated with a water-absorbing material facing the opening of the vent pipe. The other end is arranged so as to be able to supply water to the water absorbing material, and the water supply tank has an opening to which a rubber cap for initial water supply is attached;
The air pressure near the opening of the ventilation pipe is lower than the air pressure at the water surface of the water tank when the blower motor is operated.
（作用）
初めに給水タンクの初期送水用ゴムキヤツプを
押圧して給水タンクの水を毛細管ホースを介して
吸水材に給水した後は、乾球用及び湿球用温度−
電気変換素子が配置された通風管の開孔近辺は給
水タンク近辺より気圧が下るので、サイホン式に
給水タンクから毛細管ホースを経て吸水材に水が
継続的に供給される。(Function) After first pressing the initial water supply rubber cap of the water supply tank and supplying water from the water supply tank to the water absorbing material through the capillary hose, the dry bulb and wet bulb temperatures -
Since the air pressure near the opening of the ventilation pipe where the electric conversion element is placed is lower than that near the water tank, water is continuously supplied to the water absorbing material from the water tank in a siphon-like manner through the capillary hose.
（実施例）
以下、本発明の一実施例を図面について説明す
る。第１図は、乾湿球温度検知部の概略説明図
で、１は湿球用温度−電気変換素子、２は乾球用
温度−電気変換素子、３は給水タンク、４は給水
用毛細管ホース、５はブロアモータ、６−１，６
−２は通風管、７は接続コード、８はコネクタで
ある。湿球用温度−電気変換素子１は、例えば集
積回路（IC）から成り、外周にガーゼなどの吸
水材１−１を巻きつける。必要に応じて、ICの
上面及び下面にアルミニウム板を張りつけて熱放
散効果を上げると湿度の高いところ及び低いとこ
ろで幾分誤差を改善することができる。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. FIG. 1 is a schematic explanatory diagram of the wet and dry bulb temperature detection section, where 1 is a wet bulb temperature-electrical conversion element, 2 is a dry bulb temperature-electrical conversion element, 3 is a water tank, 4 is a capillary hose for water supply, 5 is a blower motor, 6-1, 6
-2 is a ventilation pipe, 7 is a connection cord, and 8 is a connector. The wet bulb temperature-electricity conversion element 1 is made of, for example, an integrated circuit (IC), and a water-absorbing material 1-1 such as gauze is wrapped around the outer periphery. If necessary, attaching aluminum plates to the top and bottom surfaces of the IC to increase the heat dissipation effect can improve the error to some extent in areas with high and low humidity.
乾球用温度−電気変換素子も湿球用と同じIC
を用いる。 The temperature-electrical conversion element for dry bulbs is the same IC as for wet bulbs.
Use.
これらの湿球用及び乾球用温度−電気変換素子
１，２は通風管６−１の開孔６−１ａに面して配
置される。 These wet bulb and dry bulb temperature-electrical conversion elements 1 and 2 are arranged facing the opening 6-1a of the ventilation pipe 6-1.
給水タンク３は、水供給用開口３−１と初期送
水用ゴムキヤツプ３−２が取付けられた開口３−
３を有し、使用前に、該開口３−１から給水さ
れ、満水になつている。 The water supply tank 3 has an opening 3-1 to which a water supply opening 3-1 and an initial water supply rubber cap 3-2 are attached.
3, and before use, water is supplied through the opening 3-1 to fill it with water.
湿度計測の開始時に、指で水供給用開口３−１
をふさぐと共に前期ゴムキヤツプ３−２を押す
と、タンク３の水は、ホース４を経て湿球用温度
−電気変換素子１のガーゼ１−１に供給され、該
ガーゼ１−１をぬらす。 At the start of humidity measurement, open the water supply opening 3-1 with your finger.
When the rubber cap 3-2 is closed and the first rubber cap 3-2 is pressed, the water in the tank 3 is supplied to the gauze 1-1 of the wet bulb temperature-electrical conversion element 1 through the hose 4, and wets the gauze 1-1.
ブロア・モータ５を回転すると、風は空間Ａか
らＢに向つて流れ、乾球用及び湿球用温度−電気
変換素子１，２が配置された通風管６−１の開孔
６−１ａ近辺は給水タンク３近辺より気圧が下る
ので、サイホン式に給水タンク３から毛細管ホー
ス４を経てガーゼ１−１に水が供給され、以後自
動的に給水を継続する。給水タンク３は例えば
3.5×3.5×1.5（cm）の容積であると内径0.8mmの毛
細管ホース４を経て24時間も連続してガーゼ１−
１に給水することができた。 When the blower motor 5 is rotated, the wind flows from the space A to the space B, near the opening 6-1a of the ventilation pipe 6-1 where the dry bulb and wet bulb temperature-electrical conversion elements 1 and 2 are arranged. Since the atmospheric pressure decreases from the vicinity of the water supply tank 3, water is supplied to the gauze 1-1 from the water supply tank 3 via the capillary hose 4 in a siphon type, and the water supply continues automatically thereafter. For example, the water tank 3 is
If the volume is 3.5 x 3.5 x 1.5 (cm), gauze 1-
We were able to supply water to 1.
第２図は、複数個の上記乾湿球温度検知部を用
いた乾湿球湿度計測装置についての電気回路の一
例のブロツク図を示す。各測定個所にそれぞれ乾
湿球温度検知部の一対の乾球用及び湿球用温度−
電気変換素子１ａ，２ａ，…，１ｎ，２ｎを配置
し、それぞれをリニアライザ１−２，２−２を介
してアナログマルチプレクサ１５の複数の入力端
子に接続する。該リニアライザ１−２，２−２
は、温度−電気変換素子１ａ…１ｎ，２ａ…２ｎ
の温度−電圧特性を直線化するための回路で、こ
れをつけると50℃のレンジで0.05℃の誤差という
優れた直線性が得られる。 FIG. 2 shows a block diagram of an example of an electric circuit for a wet and dry bulb humidity measuring device using a plurality of the wet and dry bulb temperature sensing sections. A pair of dry-bulb and wet-bulb temperature detectors are installed at each measurement location.
Electric conversion elements 1a, 2a, . . . , 1n, 2n are arranged and connected to a plurality of input terminals of an analog multiplexer 15 via linearizers 1-2, 2-2, respectively. The linearizer 1-2, 2-2
are temperature-electrical conversion elements 1a...1n, 2a...2n
This is a circuit to linearize the temperature-voltage characteristics of the sensor. When this circuit is installed, excellent linearity with an error of 0.05°C can be obtained in the 50°C range.
１０−１，１０−２はＡ−Ｄ変換器で、その端
子S1，S3に、マイクロプロセツサ１１−２でセツ
トされインターフエース１１−１の端子CA２か
ら出力されたパルス信号が印加されるとＡ−Ｄ変
換が開始され、Ａ−Ｄ変換が開始されるとステー
タス信号が端子S2、S4から出力し、アンド回路１
４を介してインターフエース１１−１の端子CA
１に印加される。この端子CA１に入力するゲー
ト信号の期間がＡ−Ｄ変換時間を決定する。 10-1 and 10-2 are A-D converters, and the pulse signals set by the microprocessor 11-2 and output from the terminal CA2 of the interface 11-1 are applied to their terminals S1 and S3 . When the A-D conversion is started, a status signal is output from the terminals S 2 and S 4 , and the AND circuit 1
Terminal CA of interface 11-1 via 4
1. The period of the gate signal input to this terminal CA1 determines the AD conversion time.
１２は記憶装置で、該記憶装置の各番地には予
め各相対湿度を格納しておく。 12 is a storage device, and each relative humidity is stored in advance at each address of the storage device.
一般に、相対湿度（Ｒ・Ｈ）はＲ・Ｈ＝100・
ｅ／es（ｅ：水蒸気圧、es：飽和水蒸気圧）で表
わされ、水蒸気圧ｅは、通風乾湿球湿度計では、
湿球の周囲の風速が2.5ｍ／ｓ以上であると、次
式
ｅ＝ew−AP（−w）／755
但し、ｅ：求める空気の水蒸気圧、ew：湿球温
度における飽和水蒸気圧、Ａ：定数（０℃以下：
0.4（１／℃）、０℃以上：0.5（１／℃）、Ｐ：空気
の圧力
：乾球温度、w：湿球温度
が成立つから、各相対湿度は、乾球用温度−電気
変換素子２ａ…２ｎの温度、湿球用及び乾球用温
度−電気変換素子１ａ…１ｎ，２ａ…２ｎの温度
差に対して上記２式から計算する。 Generally, relative humidity (R・H) is R・H=100・
It is expressed as e/es (e: water vapor pressure, es: saturated water vapor pressure), and the water vapor pressure e is:
When the wind speed around the wet bulb is 2.5 m/s or more, the following formula e = e w - AP (- w ) / 755 where e: the desired water vapor pressure of the air, e w : the saturated water vapor pressure at the wet bulb temperature , A: constant (below 0°C:
0.4 (1/℃), 0℃ or higher: 0.5 (1/℃), P: Air pressure: Dry bulb temperature, w : Wet bulb temperature, so each relative humidity can be calculated using the dry bulb temperature - electrical conversion. The temperature of the elements 2a...2n, the wet bulb temperature and the dry bulb temperature--the temperature difference between the electrical conversion elements 1a...1n, 2a...2n is calculated from the above two equations.
前記アナログマルチプレクサ１５は複数の入力
端子に接続された各一対の乾球用及び湿球用温度
−電気変換素子の出力信号を出力端子から順次選
択して導出し、Ａ−Ｄ変換器１０−１，１０−２
を経てマイクロコンピユータ１１のインターフエ
ース１１−１を通してマイクロプロセツサ１１−
２に入力し、乾球用及び湿球用温度−電気変換素
子１ａ，２ａ，…１ｎ，２ｎの温度差を計算した
後、これと乾球用温度−電気変換素子１ａ…１ｎ
の温度に対応した相対湿度データの格納番地を出
力し、記憶装置１２の番地から相対湿度データを
選択的に読み出し、リアルタイムで表示器１３に
表示する。 The analog multiplexer 15 sequentially selects and derives the output signals of each pair of dry-bulb and wet-bulb temperature-electrical conversion elements connected to a plurality of input terminals from the output terminals, and outputs the output signals from the output terminals to the A-D converter 10-1. ,10-2
and then the microprocessor 11- through the interface 11-1 of the microcomputer 11.
2 and calculate the temperature difference between the dry bulb and wet bulb temperature-electric conversion elements 1a, 2a,...1n, 2n, and then calculate the temperature difference between this and the dry bulb temperature-electrical conversion elements 1a...1n.
The storage address of the relative humidity data corresponding to the temperature is output, and the relative humidity data is selectively read from the address of the storage device 12 and displayed on the display 13 in real time.
この回路は、複数対の乾球用及び湿球用温度−
電気変換素子１，２に対し、Ａ−Ｄ変換器１０−
１，１０−２、マイクロコンピユータ１１、記憶
装置１２及び表示器１３を共用できるので、構成
が非常に簡単になる。 This circuit consists of multiple pairs of dry bulb and wet bulb temperature -
For the electric conversion elements 1 and 2, an A-D converter 10-
1, 10-2, the microcomputer 11, the storage device 12, and the display 13 can be shared, making the configuration extremely simple.
尚、この回路では、マイクロコンピユータ１１
の出力信号を表示器１３で表示するように構成し
たが、表示器１３で表示することなく、又は表示
するとともに湿度の自動制御に利用することがで
き、またレコーダに記録することができる。 In this circuit, the microcomputer 11
Although the output signal of is configured to be displayed on the display 13, it can be used for automatic humidity control without displaying it on the display 13, or can be displayed and used for automatic humidity control, or can be recorded on a recorder.
（発明の効果）
以上の記載から明らかなように、本発明によれ
ば、湿度計測の初期を除いて湿球用温度−電気変
換素子を被覆した吸水材への給水が長時間に亘つ
て自動的に行なわれるから、湿度の連続的計測や
自動制御が容易である等の効果を有する。(Effects of the Invention) As is clear from the above description, according to the present invention, water is automatically supplied to the water absorbing material covering the wet bulb temperature-electrical conversion element for a long period of time, except at the initial stage of humidity measurement. Since this is carried out on a regular basis, continuous measurement of humidity and automatic control are easy.
第１図は本発明の一実施例の乾湿球温度検知部
の概略説明図、第２図は電気回路図を示す。
１……湿球用温度−電気変換素子、１−１……
吸水材、２……乾球用温度−電気変換素子、３…
…給水タンク、４……給水用毛細管ホース、５…
…ブロアモータ、６−１，６−２……通風管、１
０−１，１０−２……Ａ−Ｄ変換器、１１……マ
イクロコンピユータ、１１−１……インターフエ
ース、１１−２……マイクロプロセツサ、１２…
…記憶装置、１３……表示装置。
FIG. 1 is a schematic explanatory diagram of a wet and dry bulb temperature detection section according to an embodiment of the present invention, and FIG. 2 is an electrical circuit diagram. 1... Temperature-electric conversion element for wet bulb, 1-1...
Water absorbing material, 2... Temperature-electrical conversion element for dry bulb, 3...
...Water supply tank, 4...Capillary hose for water supply, 5...
... Blower motor, 6-1, 6-2 ... Ventilation pipe, 1
0-1, 10-2...A-D converter, 11...Microcomputer, 11-1...Interface, 11-2...Microprocessor, 12...
...Storage device, 13...Display device.
Claims (1)
乾湿球湿度計測装置において、ブロアモータによ
り風が流入するようにされた通気管の開孔に面し
て吸水材が被覆された湿球用温度一電気変換素子
と乾球用温度−電気変換素子を配置し、給水タン
ク内に一端が挿入された毛細管ホースの他端を前
記吸水材に給水可能に配置して成り、該給水タン
クは初期送水用ゴムキヤツプが取付けられた開口
を有し、前記通気管の開孔の付近の気圧は、前記
ブロアモータの作動時、前記給水タンクの水面に
おける気圧より低くなることを特徴とする乾湿球
湿度計測装置における乾湿球温度検知部。1. In a dry-wet-bulb humidity measuring device that calculates relative humidity from dry-bulb temperature and wet-bulb temperature, the wet-bulb temperature is covered with a water-absorbing material facing the opening of the ventilation pipe through which air flows in from the blower motor. An electric conversion element and a dry bulb temperature-electric conversion element are arranged, one end of which is inserted into a water supply tank, and the other end of a capillary hose is arranged so as to be able to supply water to the water absorbing material, and the water supply tank is used for initial water supply. In the wet/dry bulb humidity measuring device, the air pressure near the opening of the ventilation pipe is lower than the air pressure at the water surface of the water supply tank when the blower motor is operated. Wet and dry bulb temperature detection section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1969580A JPS56117156A (en) | 1980-02-21 | 1980-02-21 | Psychrometric device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1969580A JPS56117156A (en) | 1980-02-21 | 1980-02-21 | Psychrometric device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56117156A JPS56117156A (en) | 1981-09-14 |
| JPH024855B2 true JPH024855B2 (en) | 1990-01-30 |
Family
ID=12006387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1969580A Granted JPS56117156A (en) | 1980-02-21 | 1980-02-21 | Psychrometric device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56117156A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101201332B (en) | 2007-09-30 | 2010-06-02 | 江苏科技大学 | An Intelligent Suction Hygrometer |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4834584A (en) * | 1971-09-06 | 1973-05-19 | ||
| JPS5457076U (en) * | 1977-09-28 | 1979-04-20 | ||
| JPS5942825B2 (en) * | 1978-01-20 | 1984-10-17 | 神奈川県 | Digital ventilated wet/dry bulb hygrometer |
-
1980
- 1980-02-21 JP JP1969580A patent/JPS56117156A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56117156A (en) | 1981-09-14 |
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