JPH04198754A - Water quality measuring device - Google Patents
Water quality measuring deviceInfo
- Publication number
- JPH04198754A JPH04198754A JP33320290A JP33320290A JPH04198754A JP H04198754 A JPH04198754 A JP H04198754A JP 33320290 A JP33320290 A JP 33320290A JP 33320290 A JP33320290 A JP 33320290A JP H04198754 A JPH04198754 A JP H04198754A
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- sensor section
- holder base
- water quality
- section
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000004140 cleaning Methods 0.000 claims abstract description 21
- 238000007654 immersion Methods 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 10
- 239000002351 wastewater Substances 0.000 abstract description 10
- 238000005259 measurement Methods 0.000 abstract description 9
- 239000007787 solid Substances 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 238000005507 spraying Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
- Optical Measuring Cells (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、溶存酸素計やｐＨ計など浸漬型センサを用い
た水質測定装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a water quality measuring device using an immersion type sensor such as a dissolved oxygen meter or a pH meter.
例えば下水処理槽内の汚水における溶存酸素量を測定す
るには、一般に溶存酸素計が用いられる。For example, a dissolved oxygen meter is generally used to measure the amount of dissolved oxygen in wastewater in a sewage treatment tank.
その場合、測定対象である汚水は比較的深い位置にある
ので、従来においては、第６図に示すように、下水処理
槽内に保護筒５１を保持し、この保護筒５１の上方から
、信号伝達用のケーブル５２の端部に接続された浸漬型
センサ５３を、その端部に形成された測定電極などより
なるセンサ部５４が保護筒５１の下端から突出しないよ
うに降下させてこれを保持すると共に、センサ部５４に
対して空気や水などの洗浄用流体を吹きつけることがで
きるように、洗浄ノズル５５を設けている。In that case, since the wastewater to be measured is located at a relatively deep position, conventionally, as shown in FIG. The immersion type sensor 53 connected to the end of the transmission cable 52 is lowered and held so that the sensor part 54 formed at the end thereof, which is formed of a measurement electrode, etc., does not protrude from the lower end of the protective tube 51. At the same time, a cleaning nozzle 55 is provided so that a cleaning fluid such as air or water can be sprayed onto the sensor section 54.
なお、第６図において、５６は保護筒５１を固定するた
めの部材である。In addition, in FIG. 6, 56 is a member for fixing the protection tube 51.
ところで、下水処理槽内を流れる汚水には、異物が浮遊
していることが多いと共に、下水処理槽に至るまでの間
にガスが溶存していることが多く、また、下水処理槽内
においては、エヤーを吹き込みながら汚水を常に撹拌す
るようにしているから、サンプルとしての汚水に気泡が
含まれていることが多い。By the way, the wastewater that flows through the sewage treatment tank often has foreign matter floating in it, and gas is often dissolved in the sewage treatment tank before it reaches the sewage treatment tank. Since the wastewater is constantly stirred while blowing air, the sample of wastewater often contains air bubbles.
従って、上記従来技術のように、センサ部５４が下方を
向くようにして浸漬型センサ５３を設けたものにおいて
は、汚水中の気泡や異物がセンサ部５４に付着しやすく
、たとえ、洗浄ノズル５５から洗浄用流体をジェット噴
流として吹きつけても、気泡や異物がセンサ部５４から
離れにくく、その結果、溶存酸素の測定に誤差が生じた
り、測定が不能になることがあった。Therefore, in the case where the immersion type sensor 53 is provided with the sensor section 54 facing downward, as in the prior art described above, air bubbles and foreign matter in the waste water tend to adhere to the sensor section 54, and even if the cleaning nozzle 55 Even if the cleaning fluid is sprayed in the form of a jet stream, air bubbles and foreign matter are difficult to separate from the sensor section 54, and as a result, errors may occur in the measurement of dissolved oxygen, or measurement may become impossible.
そして、センサ部５４に対して洗浄ノズル５５から洗浄
用流体を吹きつけてセンサ部５４を洗浄する場合、セン
サ部５４に対してまともに洗浄用流体を吹きつけていた
ので、汚水に含まれる微細な固形物が洗浄用流体と共に
センサ部５４を直撃し、例えばセンサ部５４にガラス電
極などが設けられているような場合、ガラス電極が破損
されるといった問題点もあった。When cleaning the sensor part 54 by spraying the cleaning fluid from the cleaning nozzle 55 onto the sensor part 54, since the cleaning fluid was sprayed directly against the sensor part 54, fine particles contained in the waste water There is also a problem in that the solid matter directly hits the sensor part 54 together with the cleaning fluid, and if the sensor part 54 is provided with a glass electrode, for example, the glass electrode may be damaged.
なお、上述の問題は、ｐＨ計など他の水質測定装置にお
いても生じている。Note that the above-mentioned problem also occurs in other water quality measuring devices such as pH meters.
［発明が解決しようとする課題］
本発明は、上述の事柄に留意してなされたもので、その
目的とするところは、サンプル中に含まれる気泡や異物
などがセンサ部に付着しにくく、また、仮にこれらが付
着してもセンサ部からすぐに離れるようにして、所定の
測定を常に精度よく行なうことができると共に、センサ
部の洗浄によってこれがが破損されることがない水質測
定装置を提供することにある。[Problems to be Solved by the Invention] The present invention has been made with the above-mentioned considerations in mind, and its purpose is to prevent air bubbles, foreign matter, etc. contained in the sample from adhering to the sensor section, and to To provide a water quality measuring device in which even if these adhere to a sensor part, they are immediately separated from the sensor part so that predetermined measurements can always be carried out with high precision, and the sensor part is not damaged by cleaning. There is a particular thing.
上述の目的を達成するため、本発明に係る水質測定装置
は、上下方向に設けられたガイド部材に沿って昇降自在
なホルダベースに、端部にセンサ部を形成した浸漬型セ
ンサを水平な状態または傾斜した状態になるように保持
させた点に特徴がある。In order to achieve the above-mentioned object, the water quality measuring device according to the present invention has an immersion type sensor with a sensor section formed at the end mounted on a holder base that can be raised and lowered along a guide member provided in the vertical direction in a horizontal state. It is also characterized by being held in an inclined position.
その場合、ホルダベースを、ガイド部材に沿って垂下す
る吊下げ部材に保持させると共に、センサ部に対して洗
浄用流体を吹きつけるようにしてもよい。In that case, the holder base may be held by a hanging member that hangs down along the guide member, and the cleaning fluid may be sprayed against the sensor section.
〔作用］
上記特徴的構成よりなる水質測定装置においては、端部
にセンサ部が形成された浸漬型センサを水平な状態また
は傾斜した状態になるように設けているので、サンプル
中に含まれる気泡や異物などがセンサ部に付着しにくく
、仮にこれらが付着してもセンサ部からすぐに離れる。[Function] In the water quality measuring device having the above-mentioned characteristic configuration, the immersion type sensor with the sensor section formed at the end is installed in a horizontal or inclined state, so that air bubbles contained in the sample are removed. It is difficult for foreign substances to adhere to the sensor part, and even if they do, they quickly separate from the sensor part.
従って、所定の測定を常に精度よく行なえる。Therefore, predetermined measurements can always be performed with high precision.
そして、ホルダベースを、ガイド部材に沿って垂下する
吊下げ部材によって保持させた場合、ホルダベースが安
定し、浸漬型センサを所定の状態に保持することができ
る。また、センサ部に対して洗浄用流体を吹きつける場
合、従来と異なり、センサ部に対してまともに吹きつけ
なくても、所定の洗浄を行えるので、サンプル中に含ま
れる微細な固形物がセンサ部を直撃することがなくなり
、センサ部が破損されることがなくなる。When the holder base is held by a hanging member that hangs down along the guide member, the holder base becomes stable and the immersion type sensor can be held in a predetermined state. Additionally, when spraying the cleaning fluid onto the sensor part, unlike conventional methods, the specified cleaning can be performed without spraying the cleaning fluid directly onto the sensor part, so fine solids contained in the sample can be removed from the sensor. This prevents the sensor from being directly hit and the sensor from being damaged.
以下、本発明の実施例を図面を参照しながら説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図〜第３図は本発明の一実施例に係る水質測定装置
、例えば溶存酸素計を示し、これらの図において、１は
例えば下水処理槽で、その内部には汚水２が収容されて
いる。３は下水処理槽１の壁面１ａの上方に上下方向に
設けられるパイプ状の取付は部材で、例えばステンレス
鋼など適宜の機械的強度と耐腐食性を有する材料からな
り、下水処理槽１の上面１ｂに立設された支柱４によっ
て水平に横設された保持部材５に対して固定用部材６に
よって上下方向に固定保持されている。そして、この取
付は部材３の下端には、フランジ７が設けである。Figures 1 to 3 show a water quality measuring device, such as a dissolved oxygen meter, according to an embodiment of the present invention. In these figures, 1 is a sewage treatment tank, for example, and sewage 2 is stored inside it. There is. Reference numeral 3 denotes a pipe-shaped mounting member provided vertically above the wall surface 1a of the sewage treatment tank 1, and is made of a material having suitable mechanical strength and corrosion resistance, such as stainless steel, and is mounted on the upper surface of the sewage treatment tank 1. It is fixed and held in the vertical direction by a fixing member 6 to a holding member 5 horizontally installed by a support 4 erected on 1b. This attachment is accomplished by providing a flange 7 at the lower end of the member 3.
８は後述するホルダベース１３をガイドするために上下
方向に設けられるガイド部材で、２本の例えばステンレ
ス鋼よりなるパイプ９を、互いの間に適宜の間隔を有す
るように、それらの一端側においてフランジ１０で固定
すると共に、それらの他端側において固定具１１で固定
して形成されており、フランジ１０を前記フランジ７と
突き合わせた状態で、ボルト・ナツトなどの締結具１２
を用いて取付は部材３の下部に連結されている。Reference numeral 8 denotes a guide member provided in the vertical direction to guide a holder base 13, which will be described later, in which two pipes 9 made of, for example, stainless steel are placed at one end side so as to have an appropriate distance between them. It is fixed by a flange 10 and fixed by a fixture 11 at the other end thereof, and with the flange 10 butted against the flange 7, a fastener 12 such as a bolt or nut is attached.
The mounting is connected to the lower part of the member 3 using a.
１３は前記ガイド部材８に沿って自在に昇降するホルダ
ベースで、板状のベース本体１４とその上面に一体的に
設けられるガイドブロック１５とからなり、例えばステ
ンレス鋼で形成されている。ガイドブロック１５および
これに対応するベース本体１４には、前記ガイド部材８
を挿通させることができるように、長孔状のガイド孔１
６が開設されている。A holder base 13 is movable up and down along the guide member 8, and is composed of a plate-shaped base body 14 and a guide block 15 integrally provided on its upper surface, and is made of stainless steel, for example. The guide block 15 and the corresponding base body 14 are provided with the guide member 8.
A long guide hole 1 is provided so that the
6 have been established.
そして、ベース本体１４の上面には、端部にセンサ部１
７が形成された浸漬型センサ（溶存酸素測定用センサＨ
８が、水平な状態になるように、固定用部材１９によっ
て着脱自在に固定保持されている。The upper surface of the base body 14 has a sensor section 1 at the end thereof.
7 is formed (dissolved oxygen measurement sensor H)
8 is detachably fixed and held by a fixing member 19 so as to be in a horizontal state.
この浸漬型センサ１８は従来からのものを用いることが
でき、２０はその信号取出し用ケーブルである。A conventional immersion type sensor 18 can be used, and 20 is a signal extraction cable thereof.
また、ベース本体１４の下部には、センサ部１７に臨む
ようにして洗浄用流体、例えばエヤーを吹きつけるため
のノズル２１が取り付けられており、２２はエヤー供給
するための供給配管である。なお、前記信号取出し用ケ
ーブル２０および供給配管２２は、フランジ１０，７に
それぞれ形成された孔−（図外）および取付は部材３の
内部を通って導出され、信号取出し用ケーブル２０は図
外の測定装置本体に、また、供給配管２２は図外のエヤ
ー供給装置にそれぞれ接続されている。Further, a nozzle 21 for spraying a cleaning fluid such as air is attached to the lower part of the base body 14 so as to face the sensor section 17, and 22 is a supply pipe for supplying air. Note that the signal extraction cable 20 and the supply piping 22 are led out through holes (not shown) formed in the flanges 10 and 7, respectively, and are attached through the inside of the member 3. The supply pipe 22 is connected to the main body of the measuring device, and the supply pipe 22 is connected to an air supply device (not shown).
２３は前記ホルダベース１３をガイド部材８に沿って上
下方向に自在に昇降させる昇陪装置で、支柱３の上端に
取り付けられ、ハンドル２４およびストッパー機構（図
外）を有する巻上げ機２５と、これによって巻き上げ、
巻き戻される例えばステンレス鋼製のワイヤーなどの吊
下げ部材２６とからなり、吊下げ部材２６の下端は連結
具２７を介してホルダベース１３のガイドブロック１５
に突設された係止具２８に止着されている。従って、ハ
ンドル２４を操作することにより、ホルダベース１３を
ガイド部材８に沿って自在に昇降させることができ、ま
た、前記ストッパー機構によってホルダベース１３を所
定の位置において保持することができる。Reference numeral 23 denotes an elevating device for freely raising and lowering the holder base 13 in the vertical direction along the guide member 8, which is attached to the upper end of the support column 3, and includes a hoist 25 having a handle 24 and a stopper mechanism (not shown); rolled up by
The lower end of the hanging member 26 is connected to the guide block 15 of the holder base 13 via a connector 27.
It is fixed to a locking tool 28 which is provided in a protruding manner. Therefore, by operating the handle 24, the holder base 13 can be freely raised and lowered along the guide member 8, and the holder base 13 can be held at a predetermined position by the stopper mechanism.
而して、上記構成の水質測定装置においては、下水処理
槽１内において上下方向に設けられたガイド部材８に沿
って昇降自在なホルダベース１３に、端部にセンサ部１
７を形成した浸漬型センサ１８を水平な状態で保持させ
ているので、サンプルである汚水２に含まれる気泡や異
物などがセンサ部１７に付着しにくく、仮にこれらが付
着してもセンサ部１７からすぐに離れる。従って、所定
の測定を常に精度よく行なえる。In the water quality measuring device having the above configuration, the sensor unit 1 is attached to the holder base 13 which can be moved up and down along the guide member 8 provided in the vertical direction in the sewage treatment tank 1.
Since the immersion type sensor 18 formed with 7 is held in a horizontal state, air bubbles and foreign matter contained in the sample of wastewater 2 are difficult to adhere to the sensor part 17, and even if they do, the sensor part 17 leave immediately. Therefore, predetermined measurements can always be performed with high precision.
そして、上記実施例においては、ホルダベースＩ３を、
ガイド部材８に沿って垂下する吊下げ部材２６によって
保持させた場合、ホルダベース１３が安定し、浸漬型セ
ンサ１８を所定の状態に保持することができる。また、
センサ部１７に対してエヤーを吹きつける場合、従来と
異なり、センサ部１７に対してまともに吹きつけなくて
も、例えば第２図において仮想線で示すように、エヤー
をセンサ部１７の前方を通過するように吹きつけること
によっても所定の洗浄を行うことができるから、サンプ
ル中に含まれる微細な固形物がセンサ部１７を直撃する
ことがなくなり、センサ部１７が破損されることがなく
なる。In the above embodiment, the holder base I3 is
When held by the hanging member 26 hanging down along the guide member 8, the holder base 13 is stabilized and the immersion type sensor 18 can be held in a predetermined state. Also,
When blowing air toward the sensor section 17, unlike conventional methods, you do not have to blow the air directly toward the sensor section 17; for example, as shown by the imaginary line in FIG. Predetermined cleaning can also be performed by blowing through the sample, so the fine solids contained in the sample will not directly hit the sensor section 17, and the sensor section 17 will not be damaged.
また、巻上げ機２５によって吊下げ部材２６を巻き取る
ことにより、ホルダベース１３と共に浸漬型センサ１８
を汚水２から上昇させることができるので、適宜上昇さ
せた位置において浸漬型センサ１８を点検したり、交換
することができ、メンテナンスも容５に行なえる。In addition, by winding up the hanging member 26 with the winding machine 25, the immersion type sensor 18 can be removed together with the holder base 13.
Since the immersion type sensor 18 can be raised from the wastewater 2, the immersion type sensor 18 can be inspected or replaced at an appropriately raised position, and maintenance can be easily performed.
本発明は上記実施例に限られるものではなく、種々に変
形して実施することができる。The present invention is not limited to the above embodiments, and can be implemented with various modifications.
すなわち、第４図に示す例においては、２本のパイプ９
よりなるガイド部材８を、その上端においてチャンネル
綱など水平に横設された保持部材２９に固定用部材３０
によって固定すると共に、信号取出し用ケーブル２０お
よび供給配管２２をホルダベース１３の吊下げ部材に兼
用している。That is, in the example shown in FIG.
A fixing member 30 is attached to a horizontally installed holding member 29 such as a channel rope at its upper end.
At the same time, the signal extraction cable 20 and the supply piping 22 are also used as a hanging member of the holder base 13.
また、第５図に示す例においては、ホルダベース３１を
やや厚手の素材で構成し、このホルダベース３１に、２
本のパイプ９をそれぞれ挿通させる挿通孔３２を形成し
ている。In the example shown in FIG. 5, the holder base 31 is made of a slightly thick material, and the holder base 31 has two
Insertion holes 32 are formed through which the book pipes 9 are inserted.
なお、ガイド部材８は上記構成のものに限られるもので
なく、１本のパイプあるいは丸棒など、種々の構成にす
ることができる。また、センサ部１７を洗浄水によって
洗浄してもよい。Note that the guide member 8 is not limited to the above-mentioned configuration, and can have various configurations such as a single pipe or a round bar. Further, the sensor section 17 may be cleaned with cleaning water.
さらに、上記の実施例においては、端部にセンサ部１７
を形成した浸漬型センサ１８を水平な状態になるように
保持していたが、本発明はこれに限られるものではなく
、浸漬型センサ１８を傾斜した状態に保持するようにし
ても、上記実施例と同様の効果を奏することができる。Furthermore, in the above embodiment, the sensor section 17 is provided at the end.
Although the immersion type sensor 18 in which a The same effect as the example can be achieved.
本発明は以上のように構成されるので、本発明に係る水
質測定装置は、サンプル中に含まれる気泡や異物などが
センサ部に付着しにくく、また、仮にこれらが付着して
もセンサ部からすぐに離れるので、所定の測定を常に精
度よく行なうことができると共に、センサ部の洗浄によ
ってこれが破損されるといったことがなくなる。Since the present invention is configured as described above, the water quality measuring device according to the present invention prevents air bubbles, foreign matter, etc. contained in the sample from adhering to the sensor portion, and even if these adhere to the sensor portion, the water quality measuring device according to the present invention Since it can be removed quickly, predetermined measurements can always be carried out with high precision, and the sensor part will not be damaged by cleaning.
そして、浸漬型センサは特別仕様のものではなく、従来
と同様のものを用いることができると共に、浸漬型セン
サまわりがコンパクトに構成することができる。Moreover, the immersion type sensor is not a special specification one, and the same type as the conventional one can be used, and the area around the immersion type sensor can be configured compactly.
第１図〜第３図は本発明の一実施例を示し、第１図は本
発明に係る水質測定装置の保持状態を示す斜視図、第２
図はその要部を示す正面図、第３図は前記水質測定装置
を下水処理槽に設置した状態を示す構成図である。
第４図および第５図はそれぞれ本発明の他の実施例を示
し、第４図は水質測定装置の保持状態を示す斜視図、第
５図はホルダベースの他のＵＳを示す斜視図である。
第６図は従来技術を説明するための斜視図である。
８・・・ガイド部材、１３．３１・・・ホルダベース、
１７・・・センサ部、１８・・・浸漬型センサ、２６・
・・吊下げ部材。1 to 3 show one embodiment of the present invention, FIG. 1 is a perspective view showing the holding state of the water quality measuring device according to the present invention, and FIG.
The figure is a front view showing the main parts thereof, and FIG. 3 is a configuration diagram showing the water quality measuring device installed in a sewage treatment tank. 4 and 5 respectively show other embodiments of the present invention, FIG. 4 is a perspective view showing the holding state of the water quality measuring device, and FIG. 5 is a perspective view showing another US of the holder base. . FIG. 6 is a perspective view for explaining the prior art. 8...Guide member, 13.31...Holder base,
17...Sensor part, 18...Immersion type sensor, 26.
...Hanging member.
Claims (2)
在なホルダベースに、端部にセンサ部を形成した浸漬型
センサを水平な状態または傾斜した状態になるように保
持させたことを特徴とする水質測定装置。(1) A holder base that is movable up and down along a guide member provided in the vertical direction holds an immersion type sensor with a sensor section formed at the end in a horizontal or inclined state. water quality measuring device.
下する吊下げ部材に保持させると共に、前記センサ部に
対して洗浄用流体を吹きつけるようにした請求項第（１
）項に記載の水質測定装置。(2) The holder base is held by a hanging member that hangs down along the guide member, and a cleaning fluid is sprayed onto the sensor portion.
) The water quality measuring device described in section 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2333202A JP2513533B2 (en) | 1990-11-28 | 1990-11-28 | Water quality measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2333202A JP2513533B2 (en) | 1990-11-28 | 1990-11-28 | Water quality measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04198754A true JPH04198754A (en) | 1992-07-20 |
| JP2513533B2 JP2513533B2 (en) | 1996-07-03 |
Family
ID=18263454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2333202A Expired - Lifetime JP2513533B2 (en) | 1990-11-28 | 1990-11-28 | Water quality measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2513533B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007130583A (en) * | 2005-11-10 | 2007-05-31 | Fuji Clean Kogyo Kk | Apparatus and method for treating water |
| JP2012026903A (en) * | 2010-07-26 | 2012-02-09 | Wakachiku Construction Co Ltd | Underwater position fixing device for thickness measuring tool of steel underwater structural material |
| JP2020034351A (en) * | 2018-08-28 | 2020-03-05 | ユニバーサル製缶株式会社 | Water quality measuring device |
| CN114324792A (en) * | 2021-12-15 | 2022-04-12 | 武汉新烽光电股份有限公司 | DO sensor that anti-interference stability is strong |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101057969B1 (en) | 2011-04-18 | 2011-08-19 | 길주형 | Fixture holder of water measurement sensors |
| KR101355390B1 (en) * | 2011-07-15 | 2014-01-28 | 한국원자력연구원 | Device for fixing measurement instrument in the water for multi-purpose investigation |
| BR112020005576B1 (en) * | 2017-12-15 | 2023-02-07 | Tankbots, Inc | METHOD FOR PERFORMING A SELECTED TASK IN A TANK AT LEAST PARTIALLY FILLED WITH AN ENERGETIC SUBSTANCE |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57122564U (en) * | 1981-01-26 | 1982-07-30 | ||
| JPS61189269U (en) * | 1985-05-18 | 1986-11-26 |
-
1990
- 1990-11-28 JP JP2333202A patent/JP2513533B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57122564U (en) * | 1981-01-26 | 1982-07-30 | ||
| JPS61189269U (en) * | 1985-05-18 | 1986-11-26 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007130583A (en) * | 2005-11-10 | 2007-05-31 | Fuji Clean Kogyo Kk | Apparatus and method for treating water |
| JP2012026903A (en) * | 2010-07-26 | 2012-02-09 | Wakachiku Construction Co Ltd | Underwater position fixing device for thickness measuring tool of steel underwater structural material |
| JP2020034351A (en) * | 2018-08-28 | 2020-03-05 | ユニバーサル製缶株式会社 | Water quality measuring device |
| CN114324792A (en) * | 2021-12-15 | 2022-04-12 | 武汉新烽光电股份有限公司 | DO sensor that anti-interference stability is strong |
| CN114324792B (en) * | 2021-12-15 | 2022-07-22 | 武汉新烽光电股份有限公司 | DO sensor that anti-interference stability is strong |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2513533B2 (en) | 1996-07-03 |
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