JPH0425644Y2 - - Google Patents
Info
- Publication number
- JPH0425644Y2 JPH0425644Y2 JP1986110544U JP11054486U JPH0425644Y2 JP H0425644 Y2 JPH0425644 Y2 JP H0425644Y2 JP 1986110544 U JP1986110544 U JP 1986110544U JP 11054486 U JP11054486 U JP 11054486U JP H0425644 Y2 JPH0425644 Y2 JP H0425644Y2
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- current density
- sensor
- conductor
- cylindrical body
- 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
Links
- 239000007788 liquid Substances 0.000 claims description 17
- 239000004020 conductor Substances 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000011282 treatment Methods 0.000 description 6
- 239000008151 electrolyte solution Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000011545 laboratory measurement Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Measuring Leads Or Probes (AREA)
Description
【考案の詳細な説明】
〔考案の目的〕
産業上の利用分野
本考案は電気メツキ等の電解処理を施す被処理
面の局所的電流密度を測定する装置に関する。[Detailed Description of the Invention] [Purpose of the Invention] Industrial Field of Use The present invention relates to an apparatus for measuring the local current density of a surface to be treated which is subjected to an electrolytic treatment such as electroplating.
従来の技術
電気メツキや電解研磨等の電解処理を行なうに
当つて、被処理面の電流密度を適切な範囲内に調
整することは、良好な電解処理面を得るためには
欠くことができない。このような電解処理におい
て電流密度を知るために、被処理面の面積と通電
全電流値とから算出する方法があるが、被処理面
の形状が一様でないときにはその凸部や端部など
に電流が集中し、また凹部や裏面などには少しし
か電流が廻らないという問題があり、前記のよう
な平均電流密度を知るのみでは良好な電解処理面
は得られない。Prior Art When performing electrolytic treatments such as electroplating and electrolytic polishing, it is essential to adjust the current density of the surface to be treated within an appropriate range in order to obtain a good electrolytically treated surface. In order to know the current density in such electrolytic treatment, there is a method of calculating it from the area of the surface to be treated and the total current value. There is a problem in that the current is concentrated and only a small amount of current flows to the recesses or the back surface, so it is not possible to obtain a good electrolytically treated surface just by knowing the average current density as described above.
そこで、電解処理を行なうに当つて、被処理導
電体と電解浴との接液面におけるそれぞれ異つた
場所での局所的電流密度を知ることができれば、
これによつて電解処理条件や対極の形状あるいは
対極との相対的位置関係等を調整し、効率的かつ
優れた成績が得られる電解処理を実施することが
可能となる筈である。ところがこのような接液面
の局所的電流密度を知る手段としては、実験室的
に測定する方法はあつたとしても、工業的に操業
現場で利用し得る測定方法は未だに無いのが現実
であつた。 Therefore, when performing electrolytic treatment, it would be possible to know the local current density at different locations on the contact surface between the conductor to be treated and the electrolytic bath.
This should make it possible to perform electrolytic treatment efficiently and with excellent results by adjusting the electrolytic treatment conditions, the shape of the counter electrode, the relative positional relationship with the counter electrode, etc. However, even if there is a laboratory measurement method for determining the local current density of a liquid-contacted surface, the reality is that there is still no measurement method that can be used in industrial operations. Ta.
これに対して本考案者の１人は、対になつて互
いに絶縁された導電体電極を所定距離を隔てて対
向配置したバイポーラ電極型センサを電流密度測
定対象導電体の接液面に近接させて電解液中に位
置させ、電解液中を流れる電流によつて液中に発
生する液中電流密度に比例した電位傾度を前記セ
ンサの電極間の電位差として検出し、この電位差
信号をあらかじめ同じ電解液について測定して得
た電位差−電流密度の関数に代入することによつ
て測定対象導電体の接液面付近の液中電流密度を
求め、これによって該接液面の特定箇所を通過す
る電流の密度を近似的に測定する手段が、工業的
に実用可能であることを見出した。そして、この
原理に基づく電流密度測定装置を発明し、別途特
許出願している（特開昭62−27655号）。 In contrast, one of the inventors of the present invention proposed a bipolar electrode type sensor in which a pair of mutually insulated conductor electrodes are arranged facing each other at a predetermined distance, and the sensor is placed close to the wetted surface of the conductor to be measured for current density. The sensor is placed in an electrolytic solution, and the potential gradient proportional to the current density in the solution generated by the current flowing through the electrolytic solution is detected as the potential difference between the electrodes of the sensor. The current density in the liquid near the liquid contact surface of the conductor to be measured is determined by substituting it into the potential difference-current density function obtained by measuring the liquid, and from this, the current passing through a specific point on the liquid contact surface is determined. It has been found that a means for approximately measuring the density of is industrially practical. He then invented a current density measuring device based on this principle and filed a separate patent application (Japanese Patent Laid-Open No. 62-27655).
解決しようとする問題点
かかる電流密度測定装置は、先端に導電体を離
間対向して配置したセンサと、該導電体間の電位
差を信号として導出する電線と、該信号を増幅し
て表示する出力装置とからなつている。そして、
かかる測定装置によつて得た電流密度の測定精度
は、センサに設けた電極を被測定導電体の接液面
に対して接近した位置で電位傾度が最大となるよ
うな姿勢に固定して測定を実施することによつ
て、はじめて確保される。Problems to be Solved This current density measuring device includes a sensor having a conductor disposed at its tip facing each other at a distance, an electric wire that derives the potential difference between the conductors as a signal, and an output that amplifies and displays the signal. It consists of equipment. and,
The measurement accuracy of current density obtained by such a measuring device is determined by fixing the electrode attached to the sensor in a position that maximizes the potential gradient at a position close to the wetted surface of the conductor to be measured. This can only be ensured by implementing the following.
ところが、被測定導電体の形状は必ずしも単純
なものばかりではなく、複雑な表面形状の導電体
の多くの部位の電流密度を正確に測定しようとす
ると、センサの位置決めが容易でない。またセン
サを電位傾度が最大となる姿勢となるよう固定す
るのも容易でなく、場合によつてはセンサの電極
を測定対象の部位に接近させることさえ不可能の
ことがあつた。 However, the shape of the conductor to be measured is not necessarily simple, and positioning the sensor is not easy when trying to accurately measure current density at many parts of a conductor with a complex surface shape. Furthermore, it is not easy to fix the sensor in a position where the potential gradient is maximum, and in some cases, it has been impossible to even bring the electrode of the sensor close to the part to be measured.
そこで、本考案は、複雑な表面形状の導電体に
おける接液面の電流密度を測定するに当つて、多
様な部位のそれぞれに容易に電極を接近させるこ
とができる。融通性のある電流密度測定用センサ
を提供しようとするものである。 Accordingly, the present invention allows electrodes to be easily brought close to each of various locations when measuring the current density on the liquid contact surface of a conductor with a complex surface shape. The present invention aims to provide a flexible sensor for measuring current density.
問題点を解決するための手段
上述のような本考案の目的は、絶縁性の筒状体
の先端部に２個の接液電極を互に絶縁された状態
で設けてなり、該接液電極はそれぞれの接液面が
所定距離を隔てて対設され、該筒状体の先端方向
延長部の少くとも一部が屈曲可能でありかつその
屈曲状態を維持し得る如く構成されていることを
特徴とする、導電体接液面の電流密度測定用セン
サを用いることによつて達成される。
Means for Solving the Problems The object of the present invention as described above is to provide two wetted electrodes insulated from each other at the tip of an insulating cylindrical body. The respective liquid contact surfaces are arranged opposite each other with a predetermined distance apart, and at least a part of the distal extension of the cylindrical body is configured to be bendable and maintain the bent state. This is achieved by using a sensor for measuring current density on the surface of a conductor in contact with liquid.
以下、図面によつて本考案のセンサを説明す
る。１は電気絶縁性の筒状体の基部であり、２は
同じく筒状体の延長部である。延長部２の先端に
は２個の接液電極３，３が平行に突設されてい
る。接液電極３，３の表面には絶縁被覆が設けら
れ、その尖端３ａ，３ａのみが金属面となつてい
て、尖端３ａ，３ａ間の距離は、たとえば５mm程
度としてある。また、筒体部１の内部の空間を通
つて２芯のみが金属面となつていて、尖端３ａ，
３ａ絶縁電線４が設けられ、それぞれの芯線は延
長部２の先端部位内部でそれぞれ接液極３，３に
接続されると共に、外部の計器に電極電位を伝達
するようになつている。 Hereinafter, the sensor of the present invention will be explained with reference to the drawings. 1 is the base of an electrically insulating cylindrical body, and 2 is an extension of the cylindrical body. Two liquid contact electrodes 3, 3 are provided protruding in parallel from the tip of the extension portion 2. An insulating coating is provided on the surfaces of the liquid contact electrodes 3, 3, and only the tips 3a, 3a are metal surfaces, and the distance between the tips 3a, 3a is, for example, about 5 mm. In addition, only two cores are metal surfaces passing through the internal space of the cylindrical body part 1, and the pointed ends 3a,
3a insulated wires 4 are provided, each core wire being connected to the liquid contact electrodes 3, 3, respectively, inside the distal end portion of the extension portion 2, and transmitting the electrode potential to an external meter.
かかる接液電極３，３は相互に絶縁されて設け
られ、その尖端３ａ，３ａはたとえば白金などの
ような耐食性金属か、または電解液中に含有され
るイオンと同種の金属などで構成され、たとえ溶
出しても電解液を汚染しないような金属であるこ
とが望ましい。 The liquid contact electrodes 3, 3 are provided insulated from each other, and their tips 3a, 3a are made of a corrosion-resistant metal such as platinum, or a metal of the same type as the ions contained in the electrolytic solution, It is desirable to use a metal that does not contaminate the electrolyte even if it is eluted.
このような接液電極３，３を先端部に備えた筒
状体の延長部２は、たとえば金属の螺旋管の表面
にたとえば軟質塩化ビニール樹脂あるいはシリコ
ーンゴムなどの被覆を施して形成された可撓性の
管体で構成してある。こうして可撓性管体は一旦
屈曲したときは、その状態が内部摩擦によつてそ
のまま維持されるものであればよく、上述の例示
に限定されるものではない。 The extension part 2 of the cylindrical body having such liquid-contacted electrodes 3, 3 at its tip is a flexible material formed by coating the surface of a metal spiral tube with, for example, soft vinyl chloride resin or silicone rubber. It is made up of a flexible tube. Once the flexible tube is bent in this manner, it is sufficient that the bent state is maintained as it is by internal friction, and the bending is not limited to the above-mentioned example.
作 用
本考案の電流密度測定用センサは、このように
構成されているので、筒状体の少くとも一部を屈
曲させることによつて、その先端に設けた接液電
極３，３の電位差検出方向を任意に変更すること
ができ、また被測定導電体の接液面のいかなる部
位にも接近させることができる。従つて、接液面
がたとえば凹部であつても電極３，３をその中に
挿入することもでき、あるいは下向きの面に下方
から接近させることも可能である。Function Since the current density measurement sensor of the present invention is configured as described above, by bending at least a part of the cylindrical body, the potential difference between the liquid contact electrodes 3 and 3 provided at the tip of the cylindrical body is reduced. The detection direction can be changed arbitrarily, and it can be brought close to any part of the liquid-contacted surface of the conductor to be measured. Therefore, even if the surface in contact with liquid is a recess, the electrodes 3, 3 can be inserted into the recess, or it is possible to approach the downward surface from below.
以上説明したように、本考案の導電体接液面の
電流密度測定用センサは、絶縁性の筒状体の少く
とも一部が屈曲可能でありかつその屈曲状態を維
持しうるように構成してあり、その先端部に２個
の接液電極を設けてあるので、複雑な表面形状の
被測定対象導電体の接液面各部位の電流密度を、
１個の測定用センサによつて測定することを可能
としたものである。
As explained above, the sensor for measuring current density on the surface of a conductor in contact with liquid according to the present invention is configured such that at least a portion of the insulating cylindrical body can be bent and can maintain the bent state. It has two electrodes in contact with the liquid at its tip, so it is possible to measure the current density at each part of the liquid-contacted surface of the conductor to be measured, which has a complex surface shape.
This makes it possible to measure with one measurement sensor.
図面は、本考案の導電体接液面の電流密度測定
用センサの構成を示す、一部を切欠いた正面図で
ある。
１……筒状体基部、２……筒状体延長部、３…
…接液電極、４……絶縁電線。
The drawing is a partially cutaway front view showing the configuration of a sensor for measuring current density on a surface of a conductor in contact with liquid according to the present invention. 1... Cylindrical body base, 2... Cylindrical body extension, 3...
...Wetted electrode, 4...Insulated wire.
Claims (1)
いに絶縁された状態で設けてなり、該接液電極は
それぞれの接液面が所定距離を隔てて対設され、
該筒状体の先端方向延長部の少くとも一部が屈曲
可能でありかつその屈曲状態を維持しうる如く構
成されていることを特徴とする、導電体接液面の
電流密度測定用センサ。 Two liquid-contacted electrodes are provided at the tip of an insulating cylindrical body in a mutually insulated state, and the liquid-contacted surfaces of the liquid-contacted electrodes are arranged oppositely with a predetermined distance apart,
A sensor for measuring current density on a surface of a conductor in contact with liquid, characterized in that at least a part of the extending portion in the distal direction of the cylindrical body is configured to be bendable and maintain the bent state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986110544U JPH0425644Y2 (en) | 1986-07-18 | 1986-07-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986110544U JPH0425644Y2 (en) | 1986-07-18 | 1986-07-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6319267U JPS6319267U (en) | 1988-02-08 |
| JPH0425644Y2 true JPH0425644Y2 (en) | 1992-06-19 |
Family
ID=30989643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986110544U Expired JPH0425644Y2 (en) | 1986-07-18 | 1986-07-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0425644Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5442711U (en) * | 1977-08-31 | 1979-03-23 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4968491U (en) * | 1972-09-27 | 1974-06-14 |
-
1986
- 1986-07-18 JP JP1986110544U patent/JPH0425644Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5442711U (en) * | 1977-08-31 | 1979-03-23 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6319267U (en) | 1988-02-08 |
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