JPH03216540A - Measurement of moisture content rate - Google Patents
Measurement of moisture content rateInfo
- Publication number
- JPH03216540A JPH03216540A JP1336490A JP1336490A JPH03216540A JP H03216540 A JPH03216540 A JP H03216540A JP 1336490 A JP1336490 A JP 1336490A JP 1336490 A JP1336490 A JP 1336490A JP H03216540 A JPH03216540 A JP H03216540A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- electrode
- measurement
- electrodes
- moisture content
- 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
- 238000005259 measurement Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 9
- 229910010293 ceramic material Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 13
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 238000011088 calibration curve Methods 0.000 description 4
- 229920002379 silicone rubber Polymers 0.000 description 3
- 239000004945 silicone rubber Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- -1 oxygen ions Chemical class 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は窯業系材料における含水率の計測方法に関する
。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for measuring moisture content in ceramic materials.
（従来の技術）
木材の含水率計測において２針式のセンサー部に電圧を
印加し、抵抗を計測する方法が提案されている。しかし
、この方法は、２針間に絶えず正と負の電圧をかけてい
るため、材料中の水の中にイオンが存在すると、電極に
イオンが集中する。(Prior Art) In measuring the moisture content of wood, a method has been proposed in which a voltage is applied to a two-needle type sensor section and the resistance is measured. However, in this method, positive and negative voltages are constantly applied between the two needles, so if ions are present in the water in the material, the ions will concentrate on the electrode.
従ってこの方法をそのまま、瓦，外壁材に用いると、正
極側に酸化カルシウムの電離した酸素イオン（０ト）が
集中し、正極電極がさびるという現象が見られた。（
２ Ｆｅ ＋ ３ ０ ”−→ＦＱｚＯ＋ ）この結果
、電極自体の抵抗が変化する欠点があった。Therefore, if this method was used as is for roof tiles and exterior wall materials, a phenomenon was observed in which ionized oxygen ions (0 t) of calcium oxide were concentrated on the positive electrode side, causing the positive electrode to rust. (
2Fe+30''-→FQzO+) As a result, there was a drawback that the resistance of the electrode itself changed.
（発明が解決しようとする課題）
本発明は上記の欠点を改善するために提案されたもので
、電極におけるイオン反応を防止し、窯業系材料におい
て含水率を計測する方法を提供することを目的とする。(Problems to be Solved by the Invention) The present invention was proposed in order to improve the above-mentioned drawbacks, and aims to provide a method for preventing ionic reactions in electrodes and measuring moisture content in ceramic materials. shall be.
（課題を解決するための手段）
上記の目的を達成するため本発明は、２対の電極を有す
るセンサー部の各電極に電圧を印加し、その時の電極間
の抵抗を計測することにより、窯業系材料の含水率を計
測する方法において、印加電圧は計測時のみ電極に加え
、かつ、印加電圧の極性を計測時毎に正と負を交互に変
えることを特徴とする含水率計測方法を発明の要旨とす
るものである。(Means for Solving the Problem) In order to achieve the above object, the present invention applies a voltage to each electrode of a sensor section having two pairs of electrodes, and measures the resistance between the electrodes at that time. Invented a method for measuring the water content of system materials, which is characterized in that an applied voltage is applied to an electrode only during measurement, and the polarity of the applied voltage is alternately changed between positive and negative at each measurement time. This is the gist of the report.
（作用）
本発明によれば、
（イ）２対の電極を用いることにより、イオンの集中を
柔げることができる。(Function) According to the present invention, (a) By using two pairs of electrodes, concentration of ions can be reduced.
（口）含水率計測時のみ印加電圧をかけることにより、
イオンの集中を柔げることができる。(Note) By applying voltage only when measuring moisture content,
It can reduce the concentration of ions.
（ハ）電圧を印加する毎に正極・負極を交互に変えるこ
とにより、イオンの１極集中を防くことができる。(c) By alternating the positive and negative electrodes each time a voltage is applied, concentration of ions in one pole can be prevented.
これによって、電極にイオンが集中することなく、イオ
ン反応を防止し、さびることをなくすことができる。This prevents ions from concentrating on the electrode, prevents ionic reactions, and prevents rust.
次に本発明の実施例について説明する。なお、実施例は
一つの例示であって、本発明の精神を逸脱しない範囲で
、種々の変更あるいは改良を行いうることは言うまでも
ない。Next, examples of the present invention will be described. Note that the embodiments are merely illustrative, and it goes without saying that various changes and improvements can be made without departing from the spirit of the present invention.
第１図は本発明に用いられるセンサー部を示す。FIG. 1 shows a sensor section used in the present invention.
図において、■は円板状のシリコンゴム栓であって、こ
のゴムを連通して４本のステンレス針２．３，４．５が
設けられており、この中ステンレス針２．３でＡ組、４
，５でＢ組の電極対を形成する。７〜１０はステンレス
針の頭であり、電極を形成する。In the figure, ■ is a disk-shaped silicone rubber stopper, and four stainless steel needles 2.3 and 4.5 are provided through this rubber, and the inner stainless steel needle 2.3 is used for group A. , 4
, 5 form a group B of electrode pairs. 7 to 10 are the heads of stainless steel needles, which form electrodes.
いま、シリコンゴム栓１の直径が４０ａ＋ｍ，高さが１
５ｍｍの円柱形のものを使用し、電極７，電極８の間隔
を１０ｍｍ、電極９，電極ＩＯの間隔を１０ｍｓ＋、電
極７，電極９の間隔を３ｍ＋ｗ、電極８，電極１０の間
隔を３ｍｓ＋とじ、ステンレス針の長さは２５ｌＩｌｍ
とした。Now, the diameter of silicone rubber stopper 1 is 40a+m, and the height is 1.
Use a 5mm cylindrical one, and set the spacing between electrodes 7 and 8 to 10mm, the spacing between electrodes 9 and IO to 10ms+, the spacing between electrodes 7 and 9 to 3m+w, and the spacing between electrodes 8 and 10 to 3ms+. , the length of the stainless steel needle is 25lIlm
And so.
ここで示した、材質，形状，大きさ，間隔は特定される
ものでないのは言うまでもない。Needless to say, the material, shape, size, and spacing shown here are not specified.
次に第２図に示すように、電極対Ａ間に電圧を印加し（
ここでは２■の直流電圧）、その時の抵抗Ｒ１を計測す
る。次に電極対Ｂ間にも電圧を印加し抵抗Ｒ２を計測す
る。この時、電極対Ａの電極７が正の時、電極対Ｂの電
極９が負になるように印加電圧５をかけ、逆に電極対Ａ
の電極７が負の時、電極対Ｂの電極９が正になるように
印加電圧５をかける。また電圧の印加は、抵抗を計測す
る時のみかけ、かつ印加電圧の正負は計測毎に正と負の
極性を変えるものとする．なお測定値は２つの抵抗値平
均をとるものである．
第３図に外壁材１ｌの含水率を計測する際の簡略図を示
し、第４図に含水率が既知の外壁材を計測した時の検量
線（抵抗と含水率の関係）を示す。Next, as shown in Figure 2, a voltage is applied between the electrode pair A (
Here, the resistance R1 at that time is measured. Next, a voltage is also applied between the electrode pair B and the resistance R2 is measured. At this time, when electrode 7 of electrode pair A is positive, applied voltage 5 is applied so that electrode 9 of electrode pair B becomes negative, and vice versa.
When electrode 7 of electrode pair B is negative, applied voltage 5 is applied so that electrode 9 of electrode pair B becomes positive. In addition, the voltage is applied only when measuring the resistance, and the polarity of the applied voltage is changed between positive and negative for each measurement. The measured value is the average of two resistance values. FIG. 3 shows a simplified diagram for measuring the moisture content of 1 liter of exterior wall material, and FIG. 4 shows a calibration curve (relationship between resistance and moisture content) when measuring exterior wall materials with known moisture content.
この検量線に従って、未知の外壁材の含水率を計測する
ことができる。According to this calibration curve, the moisture content of an unknown exterior wall material can be measured.
この実施例では２ｖの印加電圧を外壁材にかけ、検量線
を作成した後、未知の外壁材の含水率を計測した。In this example, an applied voltage of 2 V was applied to the exterior wall material, a calibration curve was created, and then the moisture content of the unknown exterior wall material was measured.
（発明の効果）
本発明によれば、２対の電極に、計測時のみ印加電圧を
かけ、かつ、計測毎に正と負を変えた電圧をかけること
により、外壁材のような窯業系材料の含水率が計測でき
るようになった．また、２対の電極を用いることにより
、含水率測定の精度向上も図ることができる効果を有す
る。(Effects of the Invention) According to the present invention, by applying a voltage to two pairs of electrodes only during measurement, and applying a voltage with different positive and negative values for each measurement, ceramic materials such as exterior wall materials can be It is now possible to measure the moisture content of Furthermore, by using two pairs of electrodes, it is possible to improve the accuracy of water content measurement.
第１図はセンサー部、第２図は計測構成図、第３図は計
測実施例、第４図は検量線を示す。
１ ・ ・ ・
・シリコンゴム栓
２〜５ ・
・ステンレス針
７〜１０・
・電極FIG. 1 shows a sensor section, FIG. 2 shows a measurement configuration diagram, FIG. 3 shows a measurement example, and FIG. 4 shows a calibration curve. 1 ・ ・ ・ ・ Silicone rubber stopper 2 to 5 ・ ・ Stainless steel needle 7 to 10 ・ ・ Electrode
Claims (1)
、その時の電極間の抵抗を計測することにより、窯業系
材料の含水率を計測する方法において、印加電圧は計測
時のみ電極に加え、かつ、印加電圧の極性を計測時毎に
正と負を交互に変えることを特徴とする含水率計測方法
。In a method of measuring the moisture content of ceramic materials by applying a voltage to each electrode of a sensor section that has two pairs of electrodes and measuring the resistance between the electrodes, the applied voltage is applied to the electrodes only during measurement. , and a water content measuring method characterized in that the polarity of the applied voltage is alternately changed between positive and negative at each measurement time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1336490A JPH03216540A (en) | 1990-01-23 | 1990-01-23 | Measurement of moisture content rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1336490A JPH03216540A (en) | 1990-01-23 | 1990-01-23 | Measurement of moisture content rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03216540A true JPH03216540A (en) | 1991-09-24 |
Family
ID=11831044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1336490A Pending JPH03216540A (en) | 1990-01-23 | 1990-01-23 | Measurement of moisture content rate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03216540A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04279147A (en) * | 1991-03-07 | 1992-10-05 | Terumo Corp | Automatic sphygmomanometer |
| JP2012154864A (en) * | 2011-01-28 | 2012-08-16 | Star Engineering Co Ltd | Moisture meter for waste treatment tank |
-
1990
- 1990-01-23 JP JP1336490A patent/JPH03216540A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04279147A (en) * | 1991-03-07 | 1992-10-05 | Terumo Corp | Automatic sphygmomanometer |
| JP2012154864A (en) * | 2011-01-28 | 2012-08-16 | Star Engineering Co Ltd | Moisture meter for waste treatment tank |
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