JPS6063459A - Measuring device of degree of purity of air - Google Patents
Measuring device of degree of purity of airInfo
- Publication number
- JPS6063459A JPS6063459A JP15745384A JP15745384A JPS6063459A JP S6063459 A JPS6063459 A JP S6063459A JP 15745384 A JP15745384 A JP 15745384A JP 15745384 A JP15745384 A JP 15745384A JP S6063459 A JPS6063459 A JP S6063459A
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- sensor
- humidity
- air
- measuring device
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/68—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using electric discharge to ionise a gas
- G01N27/70—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using electric discharge to ionise a gas and measuring current or voltage
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
Description
【発明の詳細な説明】
本寄膏は放電電界の変化をイオン電流の変化として計測
する空気清浄度測定装置に１ｇ１−ｔ−、ｉものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention is suitable for an air cleanliness measuring device that measures changes in discharge electric field as changes in ionic current.
従来の空気清浄度測定装置の一例を第１図により説明す
Ｚ、１は放電極、２＃ｉ接地極でセンサーを構成してい
Ｚ、３け高電圧電源で放電極１．接地極２間に放電を行
ない、センサー内部に電界強度２〜３Ｋｖ１０ｍの放電
電界を形成させてい／’。An example of a conventional air cleanliness measuring device is explained with reference to FIG. A discharge is generated between the ground electrodes 2 to form a discharge electric field with an electric field strength of 2 to 3 Kv10 m inside the sensor.
４は放電電流を検出し、測定中Ｚための増幅回路で５は
計測した電流値を表示するためのｔｆｉ計である。かか
る構成の空気清浄度測定装置は、センサー内の空気が清
浄な時の放電電流を基準値とし。4 is an amplifier circuit for detecting the discharge current and for Z during measurement, and 5 is a TFI meter for displaying the measured current value. An air cleanliness measurement device with such a configuration uses the discharge current when the air inside the sensor is clean as a reference value.
センサー内に汚染し六空気が流入した時に微小粉塵とイ
オンとの衝突付着により空間電荷が形成され、イオン流
が抑制されることにより放電電流が減少する現象におい
て、電流の減少値が実際の空気の汚れ度と密接な相関が
あるという原理を応用したものであり、基準電流値に対
して減少した放電電流の差から空気の汚れ度合を測定す
るものであ札
この方式の空気清浄度測定装置はその測定原理から、高
感度で、構造が簡単なために信頼性が高く、小形で安価
なものが製作できＺという長所を有していＺｏ
しかしながら測定原理において放電場中のイオン流は空
気中の水分によっても抑制されてしまうため、空気の汚
れ度合の砥かに空気中の湿度の影響を大きく受けること
になり基準とした清浄空気の湿度とは異なる湿度条件下
では正確な空気の汚のである。肌ち放電極と接地極を有
し、高気圧電源により放電電界をつくね、その放電電流
変化を計測すＺ空気清浄度測定装置において、電気抵抗
式感湿素子を用いた湿度センサーを設け、その電気的出
力を増幅装置内で信号処理し７、放電電流の計測値を補
正−ｉ−，ＢものであＺ０
以下本品−を第２図に示す一実施例により説明す石。こ
こで従来例と同一符号のものは同一の働きｆ −＋ ７
−ものである。１は放電極、２は接地極でセンサーな構
成しており、高電圧電源３により放電極１、接地極２間
にコロナ放電を行ない、センサー内部に電界強度２〜３
ＫＶ／ｃｒｒＬの放電電界を生ずＺようにしていＺ０４
は放電電流の変化を計測−ｔ−石πめの増幅装置、５は
計ｉＩｌ！値を表示−１−まための電流計で°ある。６
は麺類抵抗式感湿素子を用いた湿度センサーで、１七と
χばアルミナ等のセラミック基板に金１極をスクリーン
印刷し、焼成焼伺した上に導電性筒分子を主体とした感
湿膜を塗荀したもの等を使用する０
一般の゛〔電気抵抗式感湿素子の湿度と抵抗値変化の様
子は第３図に示す如くであり、この抵抗値の変化特性を
一放電電流の変化を計測するための垢幅装置４に１ｊ号
として入力す２・仁とにより、センサー内に汚れ−ｆｃ
空気が流入した時に、湿度センツーも同時に空気中の湿
度を検出し、増ｒｊｊ装置４内において測定した放電電
流のうち湿度笈化による影４ｉ１袖止すＺものであＺｏ
ここで空気の汚ｆｌ裏合を検出するための放を極１およ
び接地極２より々Ｚセンサーと湿度センサー６は同−第
件の空気を計測する上で近接して使用すべきなのは官つ
まで高電圧電源によりセンサー内部で放電を行ない。When contaminated air flows into the sensor, a space charge is formed due to the collision and adhesion of fine dust and ions, and the ion flow is suppressed, resulting in a decrease in discharge current. This method applies the principle that there is a close correlation with the degree of contamination of the air, and measures the degree of contamination of the air from the difference in discharge current that decreases with respect to the reference current value.This type of air cleanliness measuring device Due to its measurement principle, it has the advantages of high sensitivity, simple structure, high reliability, and the ability to manufacture small and inexpensive products.However, in the measurement principle, the ion flow in the discharge field is Therefore, the degree of air contamination is greatly affected by the humidity in the air, and it is difficult to accurately determine the degree of air contamination under humidity conditions that are different from the standard humidity of clean air. be. In the Z air cleanliness measuring device, which has a skin discharge electrode and a ground electrode, generates a discharge electric field using a high-pressure power supply, and measures changes in the discharge current, a humidity sensor using an electrical resistance type moisture sensing element is installed, and the This product is described below with reference to an embodiment shown in FIG. 2. Here, those with the same symbols as the conventional example have the same function f −+ 7
-It is something. The sensor is composed of a discharge electrode 1 and a ground electrode 2. A high voltage power supply 3 generates a corona discharge between the discharge electrode 1 and the ground electrode 2, creating an electric field strength of 2 to 3 within the sensor.
A discharge electric field of KV/crrL is generated and Z04
5 measures the change in discharge current - t-stone πth amplifier, 5 is the total iIl! It is an ammeter that displays the value - 1 - again. 6
This is a humidity sensor that uses a noodle resistance type moisture sensing element, and a gold electrode is screen printed on a ceramic substrate such as alumina. Figure 3 shows how the humidity and resistance value of a general electric resistance type humidity sensing element change. Dirt is input into the dirt width device 4 for measuring dirt as No. 1j.
When air flows in, the humidity sensor detects the humidity in the air at the same time, and eliminates the influence of humidity in the discharge current measured in the RJJ device 4.
Here, the Z sensor and humidity sensor 6 should be used in close proximity to each other in order to measure air pollution from pole 1 and ground pole 2. A high-voltage power supply causes a discharge inside the sensor.
放電電流の変化を検出し計測すＺ増幅装置および電流計
より構成これ７−空気清浄度測定装置において湿度セン
サーを設け、その出力を増幅装置内にて信号処理し、前
記放電電流計測値の湿度による誤差を補正ｆ′るように
したので空間電界強度の変化を利用−ｔＢ空気清浄度測
定装置の精度を向上させることができＺ・
尚１本実施例によれば湿度センサーとして電気抵抗式感
湿素子を使用中Ｚの〒湿度の影響を簡単に電気的に補正
できＺことから、放電電界の変化をイオン電流の変化と
して計測すＺ空気清浄度測定装置の長所である。７＃Ｉ
Ｊ！ｆ＆度で信頼性が高く、小形、で安価であるという
、性伯を損なわずに正確な空気清浄度測定装置を得る。Consists of a Z amplifier and an ammeter that detect and measure changes in the discharge current.7 - A humidity sensor is provided in the air cleanliness measuring device, and its output is signal-processed in the amplifier, and the humidity of the measured value of the discharge current is calculated. Since the error due to f' is corrected, the accuracy of the air cleanliness measuring device can be improved by utilizing changes in the spatial electric field strength. This is an advantage of the Z air cleanliness measurement device, which measures changes in the discharge electric field as changes in the ion current, since the influence of humidity can be easily corrected electrically when using the humidity element. 7#I
J! To obtain an accurate air cleanliness measuring device without sacrificing features, such as high reliability in f& degrees, small size, and low cost.
ことかできる。即ち本考案ｒ（よ１ｒＩ−ば換気扇およ
び、空気清浄機等の空気調和後の適正運転制御用として
−それら機器に付随させＺ実用性の高い空気清浄度測定
装置を得ることが可能であＺｏI can do it. That is, the present invention can be used to properly control the operation of ventilation fans, air purifiers, etc. after air conditioning.
第１図は従来の空気清浄度測定装置の一例を示す簡単な
測定回路図、第２図は水鉢の一実前例度と電気抵抗の変
化特性の一例を示寸し１である。
向、矢印はイオンの流れ方向を示す・
１・・・放電極、２・・・接地極、３・・・高電圧電源
、４・・・増幅装置−５・・・電流計、ｔ・・・湿度セ
ンサー。
ｖ−１ロ
イ
￥、２ 図
Ｔ：３ 図
ネロ文十り！々Fig. 1 is a simple measurement circuit diagram showing an example of a conventional air cleanliness measuring device, and Fig. 2 shows an example of the change characteristics of the degree and electric resistance of a water bowl. direction, the arrow indicates the direction of ion flow. 1...Discharge electrode, 2...Grounding electrode, 3...High voltage power supply, 4...Amplifier-5...Ammeter, t...・Humidity sensor. v-1 Roy ¥, 2 Figure T: 3 Figure Nero Bunjuri! people
Claims (1)
とし為電圧電源（３）Ｋより放電極（１）と接地極（２
）間に放電を行ない、その放電電流変化を計測すに増幅
袋ｆ（４）および電流計（５）より構成される空気清浄
変曲Ｉ定装置において湿度センサー（６）を設け、その
電気的出力を増幅装置に入力し、情動処理すＺことによ
り前記放雷電流計測値の湿度の影響によ２誤差を補正す
ることを特徴と一＋Ｚ空気清浄度測定装置。 ２、 空気清浄度測定装置に用いＺ湿度センサーとして
、電気抵抗式感温素子を使用する事を特徴とする特許請
求の範囲第１項記載の 空気清浄度測定装置。1. b'i electrode (1) and grounding electrode (2)'f- As a sensor, the discharge electrode (1) and grounding electrode (2) are connected from the voltage power supply (3) K.
), and to measure the change in discharge current, a humidity sensor (6) is installed in the air purification inflection device consisting of an amplifying bag f (4) and an ammeter (5), and its electrical 1+Z air cleanliness measuring device, characterized in that the output is input to an amplifier and emotional processing is performed to correct errors in the lightning current measurement value due to the influence of humidity. 2. The air cleanliness measuring device according to claim 1, characterized in that an electrical resistance type temperature sensing element is used as the Z humidity sensor in the air cleanliness measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15745384A JPS6063459A (en) | 1984-07-30 | 1984-07-30 | Measuring device of degree of purity of air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15745384A JPS6063459A (en) | 1984-07-30 | 1984-07-30 | Measuring device of degree of purity of air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6063459A true JPS6063459A (en) | 1985-04-11 |
Family
ID=15649986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15745384A Pending JPS6063459A (en) | 1984-07-30 | 1984-07-30 | Measuring device of degree of purity of air |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6063459A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0770337A2 (en) * | 1995-10-24 | 1997-05-02 | Mitsubishi Denki Kabushiki Kaisha | Microorganism multiplication preventing method and apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4219646Y1 (en) * | 1964-03-31 | 1967-11-14 |
-
1984
- 1984-07-30 JP JP15745384A patent/JPS6063459A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4219646Y1 (en) * | 1964-03-31 | 1967-11-14 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0770337A2 (en) * | 1995-10-24 | 1997-05-02 | Mitsubishi Denki Kabushiki Kaisha | Microorganism multiplication preventing method and apparatus |
| EP0770337A3 (en) * | 1995-10-24 | 1997-07-30 | Mitsubishi Electric Corp | Microorganism multiplication preventing method and apparatus |
| US6103190A (en) * | 1995-10-24 | 2000-08-15 | Mitsubishi Denki Kabushiki Kaisha | Microorganism multiplication preventing method and apparatus |
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