JPS5987346A - Detecting apparatus of moisture - Google Patents
Detecting apparatus of moistureInfo
- Publication number
- JPS5987346A JPS5987346A JP19835982A JP19835982A JPS5987346A JP S5987346 A JPS5987346 A JP S5987346A JP 19835982 A JP19835982 A JP 19835982A JP 19835982 A JP19835982 A JP 19835982A JP S5987346 A JPS5987346 A JP S5987346A
- Authority
- JP
- Japan
- Prior art keywords
- inspected
- detection
- moisture content
- microwave
- moisture
- 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
- G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
- G01N22/04—Investigating moisture content
Abstract
Description
【発明の詳細な説明】
本発明は繊維状物、粉粒体物、スラッジ等の水を含んだ
物質の含水量を検出し判別する装置に関するものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for detecting and determining the water content of water-containing substances such as fibrous materials, granular materials, and sludge.
従来活性汚泥等が含む水分を検出し測定するのに加熱蒸
発による水分の秤量を行うようにした方法が知られてい
るが、この方法は時間と手数がかかり連続的に自動的に
検査するには向かない。A conventional method of detecting and measuring the moisture contained in activated sludge, etc. is to weigh the moisture by heating and evaporating it, but this method is time-consuming and labor-intensive, making continuous automatic inspection difficult. is not suitable.
本発明は簡単にしかも連続して含水量の検査測定ができ
る改良された水分検査装置を提供するものである。The present invention provides an improved moisture testing device that can easily and continuously test and measure moisture content.
以下図面の一実施例によって本発明を説明する。The present invention will be explained below with reference to an embodiment of the drawings.
第１図において、１は活性汚泥、スラッジ等の水分含有
の被検出物の輸送パイプで、被検査物１０はこのパイプ
内を左から右に連続して移送される。In FIG. 1, reference numeral 1 denotes a pipe for transporting a moisture-containing object to be detected, such as activated sludge or sludge, and an object to be inspected 10 is continuously transported from left to right within this pipe.
２はパイプ１の１部に内部を移送する被検出物１０が漏
出しないように設けたガラス、１ラミツクス。2 is a glass provided in a part of the pipe 1 to prevent the detected object 10 from leaking inside, and 1 lamics.
或いはフィルムのようなｔａｎδの小さい材料からなる
窓で、この窓を通してマイクロ波を照射する。Alternatively, microwaves are irradiated through a window made of a material with a small tan δ such as a film.
３は先端を窓２部分に固定した導波管で、上端部にマイ
クロ波を照射する。３は先端を窓２部分に固定した導波
管で、上端部にマイクロ波を発振するガンダイオード４
を設ける。５は発振用電源。3 is a waveguide whose tip is fixed to the window 2, and the upper end is irradiated with microwaves. 3 is a waveguide whose tip is fixed to the window 2, and a Gunn diode 4 that oscillates microwaves is at the top end.
will be established. 5 is the oscillation power supply.
６は導波管のほぼ中央部分に直交する方向に設けた検出
管で、ここに検出器７を設ける。８は検出器の出力信号
を判別し表示する判別装置である。Reference numeral 6 denotes a detection tube provided in a direction perpendicular to approximately the center of the waveguide, and a detector 7 is provided here. 8 is a discrimination device that discriminates and displays the output signal of the detector.
発振器ガンダイオード４から発信するマイクロ波は導波
管３から照射窓２を通して輸送パイプ１を移送する被検
出物１０に照射される。ＧＨｚ程度のマイクロ波は水に
吸収され、水分に応じて吸収度が変化する。従って被検
出物１０からの反射波は吸収度に反比例して減少し、こ
れを検出ダイオードアにより検出することによって被検
出物１０を含水率を判定することができる。Microwaves emitted from the oscillator Gunn diode 4 are irradiated from the waveguide 3 through the irradiation window 2 to the detected object 10 being transferred through the transport pipe 1 . Microwaves of about GHz are absorbed by water, and the degree of absorption changes depending on the water content. Therefore, the reflected wave from the object to be detected 10 decreases in inverse proportion to the absorbance, and by detecting this with the detection diode door, the moisture content of the object to be detected 10 can be determined.
例えば発振器に１８３ ＠ ｚの発振をするダイオード
を設け、長さ４８ｍｍの導波管を用いて測定するものに
おいて、被検出物として活性汚泥を用い、活性汚泥を始
めに充分乾燥させてから水道水を加えて含水量を変化さ
せながら測定したとき、第２図のグラフが得られた。横
軸は含水率、縦軸が検出ダイオードの検出出力である。For example, in a measurement using a waveguide with a length of 48 mm and an oscillator equipped with a diode that oscillates at 183 @ z, activated sludge is used as the object to be detected, and the activated sludge is first thoroughly dried before being poured into tap water. When measuring the water content while changing the water content, the graph shown in Figure 2 was obtained. The horizontal axis is the water content, and the vertical axis is the detection output of the detection diode.
これから含水率３％では反射波が増加して検出信号電圧
的３Ｖ、含水率１００％では吸収量が増加するため反射
波が減少して検出信号電圧は約１Ｖ程度に低下し、その
間は図のように曲線になる。従ってこの検出特性曲線を
用いて検出器７の検出出力信号を判別装置８で判別測定
することによって輸送バイブ１中を流れる被検出物１０
の含水量を自動的に連続的に検出することができる。At a moisture content of 3%, the reflected wave increases and the detection signal voltage is 3V, and at a moisture content of 100%, the amount of absorption increases, so the reflected wave decreases and the detection signal voltage drops to about 1V. It becomes a curve like this. Therefore, by using this detection characteristic curve, the detection output signal of the detector 7 is discriminated and measured by the discriminator 8, thereby detecting the detected object 10 flowing through the transportation vibrator 1.
The water content of the water can be automatically and continuously detected.
第３図はベルトコンベア１１に乗って矢印方向に移動す
る物体１２の含水率を検出する実施例である。FIG. 3 shows an embodiment in which the moisture content of an object 12 moving in the direction of the arrow on a belt conveyor 11 is detected.
物体１２は例えば衣類等で表面が凹凸状のものである。The object 12 is, for example, clothing or the like and has an uneven surface.
この場合の検出は次のようにする。検出器７の検出信号
は物体１２の凹凸によって強弱変化するので、判別装置
８では検出器７の検出信号を所定時間積分Σ■し、その
値を所定時偶ｔで微分Σ■／ｌ Ｌ、て判別するか、所
定時間ｔφのベルトコンベア１１の移動長さノで微分Ｅ
Ｖ／７１て判別することによって平均的に含水率を検出
判別することができる。勿論予め被検出物の凹凸をロー
ラ等に掛けて平滑にした状態で検出測定部位に供給する
ようにしてもよい。Detection in this case is performed as follows. Since the detection signal of the detector 7 changes in strength depending on the unevenness of the object 12, the discrimination device 8 integrates the detection signal of the detector 7 for a predetermined time Σ■, and differentiates the value by a predetermined time even t. or differentiate E by the moving length of the belt conveyor 11 for a predetermined time tφ.
By determining V/71, the moisture content can be detected and determined on average. Of course, the unevenness of the object to be detected may be smoothed by using a roller or the like in advance before being supplied to the detection and measurement site.
なお発振するマイクロ波は約３０〜１０ＧＨ２Ｐｉ！ａ
のものを利用し、これの反射波だけでなく、含水物の透
過波を検出するようにしてもよい。また信号の検出判別
は照射波と反射透過波との比較判定をすることができる
。The oscillated microwave is approximately 30-10GH2Pi! a
It is also possible to detect not only the reflected wave but also the transmitted wave of the water-containing substance. Furthermore, signal detection and determination can be made by comparing and determining the irradiated wave and the reflected and transmitted wave.
また検出判別の結果を脱水処理装置の制御信号に利用す
ることができる。Furthermore, the results of detection and discrimination can be used as control signals for the dehydration treatment device.
以上本発明は含水物にマイクロ波を照射し、その反射波
または透過波により信号検出し、それに判別することに
よって含水率を検出測定するようにしたものであるから
、検出が簡単であり、短時間に測定でき、連続して検出
でき、輸送パイプ。As described above, the present invention detects and measures the water content by irradiating a water-containing substance with microwaves, detecting a signal from the reflected wave or transmitted wave, and discriminating from the signal. Therefore, detection is simple and quick. Can be measured in time, can be detected continuously, and can be transported in pipes.
ベルトコンベア等によって移動する被検出物に対して特
に有効である。This is particularly effective for objects to be detected that are moved by a belt conveyor or the like.
第１図は本発明の一実施例装置の構成図、第２図は一実
施例の特性グラフ図、第３図は他の実施例構成図である
。
１・・・・・・・・・輸送パイプ
２・・・・・・・・・窓
３・・・・・・・・・導波管
４・・・・・・・・・マイクロ波発振器７・・・・・・
・・・検出器
８・・・・・・・・・判別装置
１０、１１・・・・・・・・・被検出物１１・・・・・
・・・・ベルトコンベア特 許 出 願 人
′ｊｒｔｌ風FIG. 1 is a block diagram of an apparatus according to an embodiment of the present invention, FIG. 2 is a characteristic graph diagram of one embodiment, and FIG. 3 is a block diagram of another embodiment. 1...Transport pipe 2...Window 3...Waveguide 4...Microwave oscillator 7・・・・・・
...Detector 8...Discrimination devices 10, 11...Detected object 11...
...belt conveyor patent application jin'jrtl style
Claims (1)
検出物からの反射波又は透過波を検出する検出器を設け
、該検出器の信号を判別する装置を設けてなる水分検出
装置。A moisture detection device comprising an oscillator that irradiates a detected object with microwaves, a detector that detects a reflected wave or a transmitted wave from the detected object, and a device that discriminates a signal from the detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19835982A JPS5987346A (en) | 1982-11-11 | 1982-11-11 | Detecting apparatus of moisture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19835982A JPS5987346A (en) | 1982-11-11 | 1982-11-11 | Detecting apparatus of moisture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5987346A true JPS5987346A (en) | 1984-05-19 |
Family
ID=16389793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19835982A Pending JPS5987346A (en) | 1982-11-11 | 1982-11-11 | Detecting apparatus of moisture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5987346A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0290048A (en) * | 1988-09-28 | 1990-03-29 | Tokyo Metropolis | Sludge-concentration measuring method |
| JPH02249958A (en) * | 1989-03-24 | 1990-10-05 | Hiroshi Azuma | Method for measuring moisture contained in object and measuring instrument thereof |
| JPH0373832A (en) * | 1989-08-15 | 1991-03-28 | Daipoole:Kk | Instrument for measuring water content of wood |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53122491A (en) * | 1977-03-31 | 1978-10-25 | Sumitomo Metal Ind | Controlling method for production of powder |
-
1982
- 1982-11-11 JP JP19835982A patent/JPS5987346A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53122491A (en) * | 1977-03-31 | 1978-10-25 | Sumitomo Metal Ind | Controlling method for production of powder |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0290048A (en) * | 1988-09-28 | 1990-03-29 | Tokyo Metropolis | Sludge-concentration measuring method |
| JPH02249958A (en) * | 1989-03-24 | 1990-10-05 | Hiroshi Azuma | Method for measuring moisture contained in object and measuring instrument thereof |
| JPH0373832A (en) * | 1989-08-15 | 1991-03-28 | Daipoole:Kk | Instrument for measuring water content of wood |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20070069740A1 (en) | Analysis of Variable-Depth Sample Using a Sweeping Microwave Signal | |
| JP6253096B2 (en) | Electromagnetic wave characteristic evaluation equipment | |
| JPH07507133A (en) | Broadband measuring device for non-destructive measurement of material properties | |
| SE9601083D0 (en) | Density measurement method and apparatus | |
| US4889815A (en) | Nephelometric method for determination of an antigen or antibody content in whole blood | |
| US3501692A (en) | Apparatus for determining the moisture content of solids and liquids | |
| JPS5987346A (en) | Detecting apparatus of moisture | |
| NL8302169A (en) | HIGHLY SENSITIVE TEST TUBE FOR DETERMINING GAS POLLUTANTS. | |
| CA1228399A (en) | Water moisture measuring instrument and method | |
| US20050007123A1 (en) | Method and a device for monitoring the dispersed aqueous phase of an oil-water emulsion | |
| YU38192A (en) | GAS ANALYSIS PROCEDURE AND DEVICE | |
| JP2003177105A (en) | Control method and control apparatus for constant cake water content | |
| RU2631340C1 (en) | Microwave method for measuring concentrations of aqueous solutions | |
| Brodgesell et al. | Moisture in solids | |
| CA1323791C (en) | Controlling water input to pulp washing system based on measurements on reduced dimension stream | |
| JPS5830534B2 (en) | Moisture content and basis weight measuring device for sheet-like objects | |
| JPS6363986A (en) | Detection and removal of metal | |
| JPS59174740A (en) | Moisture measuring apparatus | |
| SU693184A1 (en) | Shf method of measuring the moisture-content of dielectric material | |
| RU2569946C1 (en) | Method to measure moisture of wood with use of infrared radiation | |
| JPS62151740A (en) | Automatic measuring instrument for moisture content | |
| SU308343A1 (en) | RADIO ISIZABLE METHOD OF MATERIAL RESEARCH | |
| JPS647319Y2 (en) | ||
| JPS57169661A (en) | Detection of putrefaction of content in sealed vessel | |
| AU2003264180B2 (en) | Analysis of variable-depth sample using a sweeping microwave signal |