JPH067317Y2 - Ceramic electromagnetic flowmeter - Google Patents
Ceramic electromagnetic flowmeterInfo
- Publication number
- JPH067317Y2 JPH067317Y2 JP16257088U JP16257088U JPH067317Y2 JP H067317 Y2 JPH067317 Y2 JP H067317Y2 JP 16257088 U JP16257088 U JP 16257088U JP 16257088 U JP16257088 U JP 16257088U JP H067317 Y2 JPH067317 Y2 JP H067317Y2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- measuring tube
- electromagnetic flowmeter
- ceramics
- slurry
- 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 - Lifetime
Links
Landscapes
- Measuring Volume Flow (AREA)
Description
【考案の詳細な説明】 〈産業上の利用分野〉 本考案はセラミックス製の測定管を有するセラミックス
電磁流量計に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a ceramics electromagnetic flowmeter having a ceramics measuring tube.
更に詳述すれば、セラミックス製の測定管を有するセラ
ミックス電磁流量計の電極部分の改良に関するものであ
る。More specifically, the present invention relates to improvement of an electrode portion of a ceramics electromagnetic flowmeter having a ceramics measuring tube.
〈従来の技術〉 第２図は従来より一般に使用されている従来例の構成説
明図である。<Prior Art> FIG. 2 is an explanatory view of a configuration of a conventional example which is generally used in the past.
図において、１はセラミックス製の円筒状の測定管であ
る。測定管１は、この場合は、アルミナ（Ａｌ２Ｏ３）
が用いられている。２１，２２は測定管１に対向して配
置され導電性粉末を混合して測定管１と一体に焼成して
形成された柱状のサーメットの電極部である。In the figure, 1 is a cylindrical measuring tube made of ceramics. The measuring tube 1 is, in this case, alumina (Al 2 O 3 ).
Is used. Reference numerals 21 and 22 denote columnar cermet electrode portions which are arranged so as to face the measurement tube 1 and which are formed by mixing conductive powder and firing the mixture together with the measurement tube 1.
〈考案が解決しようとする課題〉 このようなセラミックス電磁流量計においては、電極部
２１，２２の電極表面が直接測定管内面に露出してお
り、測定流体がスラリの場合、電極表面にスラリがぶつ
かり、スラリノイズを発生し、安定した電極電位を得る
ことが出来ない。<Problems to be Solved by the Invention> In such a ceramic electromagnetic flowmeter, when the electrode surfaces of the electrode portions 21 and 22 are directly exposed to the inner surface of the measuring tube and the fluid to be measured is a slurry, the slurry is generated on the electrode surface. They collide with each other, generate slurry noise, and cannot obtain a stable electrode potential.
本考案は、この問題点を、解決するものである。The present invention solves this problem.
本考案の目的は、スラリノイズのない安定した電極電位
の得られ測定管と電極部の耐摩耗性や耐腐蝕性がほぼ同
等となるセラミックス電磁流量計を提供するにある。An object of the present invention is to provide a ceramics electromagnetic flowmeter in which a stable electrode potential without slurry noise can be obtained, and the wear resistance and the corrosion resistance of the measuring tube and the electrode portion are almost the same.
〈課題を解決するための手段〉 この目的を達成するために、本考案は、測定流体が流れ
るセラミックス製の測定管中の電極部に導電性物質が埋
め込め焼成されたセラミックス電磁流量計において、 測定管内表面に設けられ前記測定管と同じ材質からなり
液体を透過する程度多孔質に構成された保護部と、該保
護部に一端が接続され導電性物質からなる電極本体から
なる電極部を具備したことを特徴とするセラミックス電
磁流量計を構成したものである。<Means for Solving the Problem> In order to achieve this object, the present invention provides a ceramic electromagnetic flowmeter in which a conductive substance is embedded and fired in an electrode portion of a ceramic measuring tube in which a measuring fluid flows. The protective tube is provided on the inner surface of the tube and is made of the same material as that of the measuring tube and is porous to the extent that liquid is permeable; and an electrode section having an electrode body made of a conductive substance and having one end connected to the protective section. A ceramic electromagnetic flowmeter characterized by the above.
〈作用〉 以上の構成において、測定管内をスラリ流体が流れた場
合に、電極部の表面が直接測定流体に接すると、スラリ
ノイズを発生するが、電極表面に絶縁性多孔質セラミッ
クスが存在するために、直接スラリノイズが電極にぶつ
かる事がなく、スラリノイズの発生を防ぐ事が出来る。<Operation> In the above configuration, when the surface of the electrode portion directly contacts the measuring fluid when the slurry fluid flows in the measuring tube, slurry noise is generated, but the insulating porous ceramics are present on the surface of the electrode. Moreover, the slurry noise does not directly collide with the electrodes, and the occurrence of slurry noise can be prevented.
以下、実施例に基づき詳細に説明する。Hereinafter, detailed description will be given based on examples.
〈実施例〉 第１図は本考案の一実施例の要部構成説明図である。<Embodiment> FIG. 1 is an explanatory view of a main part configuration of an embodiment of the present invention.
図において、第２図と同一記号は同一機能を表わす。In the figure, the same symbols as in FIG. 2 represent the same functions.
以下、第２図と相違部分のみ説明する。Only parts different from FIG. 2 will be described below.
３１，３２は電極部である。Reference numerals 31 and 32 are electrode portions.
電極部３１，３２は測定管１の内表面に設けられ測定管
１と同じ材質からなり液体を透過する程度多孔質に構成
された保護部３１１，３２１と、保護部３１１，３２１
に一端が接続され導電性物質から成る電極本体３１２，
３２２からなる。The electrode parts 31 and 32 are provided on the inner surface of the measuring tube 1 and are made of the same material as the measuring tube 1 and are made of a porous material that protects the liquid from the protective parts 311 and 321 and the protective parts 311 and 321.
One end of the electrode body 312 made of a conductive material is connected to
322.
この場合は、保護部３１１，３２１はアルミナ、電極本
体３１２，３２２は白金とアルミナよりなる。In this case, the protection parts 311 and 321 are made of alumina, and the electrode bodies 312 and 322 are made of platinum and alumina.
以上の構成において、測定管１内をスラリ流体が流れた
場合に、電極本体３１２，３２２の表面が直接測定流体
に接すると、スラリノイズを発生するが、電極本体３１
２，３２２の表面に絶縁性多孔質セラミックスの保護部
３１１，３２１が存在するために、直接スラリノイズが
電極本体３１２，３２２にぶつかる事がなく、スラリノ
イズの発生を防ぐ事が出来る。In the above configuration, when the surface of the electrode bodies 312 and 322 directly contacts the measuring fluid when the slurry fluid flows in the measuring tube 1, slurry noise is generated.
Since the protective portions 311 and 321 of the insulating porous ceramics are present on the surfaces of the electrodes 2 and 322, the slurry noise does not directly hit the electrode bodies 312 and 322, and the occurrence of the slurry noise can be prevented.
この結果、スラリノイズによる影響がなくなり、安定し
た信号起電力を得ることが出来る。As a result, the influence of slurry noise is eliminated, and stable signal electromotive force can be obtained.
また、測定管１と保護部３１１，３２１とは、同じ材質
であるから、測定管１と電極部３１，３２の耐摩耗性や
耐腐蝕性がほぼ同等となる効果が得られる。Further, since the measuring tube 1 and the protective portions 311 and 321 are made of the same material, the effect that the measuring tube 1 and the electrode portions 31 and 32 have substantially the same wear resistance and corrosion resistance can be obtained.
なお、前述の実施例では、測定管１はアルミナ、保護部
３１１，３２１はアルミナ、電極本体３１２，３２２は
白金とアルミナよりなると説明したが、これに限る事は
ないことは勿論である。In the above-described embodiment, the measuring tube 1 is described as alumina, the protective portions 311 and 321 are made of alumina, and the electrode bodies 312 and 322 are made of platinum and alumina, but the present invention is not limited to this.
〈考案の効果〉 以上説明したように、本考案は、測定流体が流れるセラ
ミックス製の測定管中の電極部に導電性物質が埋め込め
焼成されたセラミックス電磁流量計において、 測定管内表面に設けられ前記測定管と同じ材質からなり
液体を透過する程度多孔質に構成された保護部と、該保
護部に一端が接続され導電性物質からなる電極本体から
なる電極部を具備したことを特徴とするセラミックス電
磁流量計を構成したものである。<Effects of the Invention> As described above, the present invention is a ceramics electromagnetic flowmeter in which a conductive substance is embedded in the electrode part of a ceramic measuring tube through which a measuring fluid flows and fired, and Ceramics characterized by comprising a protective portion made of the same material as the measuring tube and configured to be porous to the extent that liquid can pass therethrough, and an electrode portion composed of an electrode body made of a conductive substance and having one end connected to the protective portion. This is a configuration of an electromagnetic flow meter.
従って、測定管内をスラリ流体が流れた場合に、電極本
体の表面に絶縁性多孔質セラミックスの保護部が存在す
るために、直接スラリノイズが電極本体にぶつかる事が
なく、スラリノイズの発生を防ぐ事が出来る。Therefore, when the slurry fluid flows in the measuring tube, the protective part of the insulating porous ceramics exists on the surface of the electrode body, so that the slurry noise does not directly hit the electrode body and the generation of the slurry noise is prevented. I can do things.
この結果、スラリノイズによる影響がかくなり、安定し
た信号起電力を得ることが出来る。As a result, the influence of slurry noise is eliminated and a stable signal electromotive force can be obtained.
また、測定管と保護部とは、同じ材質であるから、測定
管と電極部の耐摩耗性や耐腐蝕性がほぼ同等となる効果
が得られる。Further, since the measuring tube and the protective part are made of the same material, the effect that the wear resistance and the corrosion resistance of the measuring tube and the electrode part are almost the same can be obtained.
したがって、本考案によれば、スラリノイズのない安定
した電極電位の得られ測定管と電極部の耐摩耗性や耐腐
蝕性がほぼ同等となるセラミックス電磁流量計を実現す
ることができる。Therefore, according to the present invention, it is possible to realize a ceramic electromagnetic flowmeter in which a stable electrode potential without slurry noise can be obtained and wear resistance and corrosion resistance of the measuring tube and the electrode portion are almost the same.
第１図は本考案の一実施例の要部構成説明図で、第２図
は従来より一般に使用されている従来例の構成説明図で
ある。 １…測定管、３１，３２…電極部、３１１，３２１…保
護部、３１２，３２２…電極本体。FIG. 1 is an explanatory view of the essential parts of an embodiment of the present invention, and FIG. 2 is an explanatory view of the structure of a conventional example that is generally used in the past. 1 ... Measuring tube, 31, 32 ... Electrode part, 311, 321 ... Protecting part, 312, 322 ... Electrode body.
Claims (1)
中の電極部に導電性物質が埋め込め焼成されたセラミッ
クス電磁流量計において、 測定管内表面に設けられ前記測定管と同じ材質からなり
液体を透過する程度多孔質に構成された保護部と、該保
護部に一端が接続され導電性物質からなる電極本体から
なる電極部を具備したことを特徴とするセラミックス電
磁流量計。1. A ceramics electromagnetic flowmeter in which a conductive substance is embedded and baked in an electrode part of a ceramics measuring tube through which a measuring fluid flows, the ceramics electromagnetic flowmeter being provided on the inner surface of the measuring tube and made of the same material as the measuring tube to transmit liquid. A ceramic electromagnetic flowmeter, comprising: a protective portion that is porous to the extent that it is provided; and an electrode portion that is connected to the protective portion and has an electrode main body made of a conductive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16257088U JPH067317Y2 (en) | 1988-12-15 | 1988-12-15 | Ceramic electromagnetic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16257088U JPH067317Y2 (en) | 1988-12-15 | 1988-12-15 | Ceramic electromagnetic flowmeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0283420U JPH0283420U (en) | 1990-06-28 |
| JPH067317Y2 true JPH067317Y2 (en) | 1994-02-23 |
Family
ID=31446516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16257088U Expired - Lifetime JPH067317Y2 (en) | 1988-12-15 | 1988-12-15 | Ceramic electromagnetic flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH067317Y2 (en) |
-
1988
- 1988-12-15 JP JP16257088U patent/JPH067317Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0283420U (en) | 1990-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6243492B2 (en) | ||
| GB2046921A (en) | Measuring sensor for determining the constituents of flowing gases | |
| JPH067317Y2 (en) | Ceramic electromagnetic flowmeter | |
| AU619264B2 (en) | Solid electrolytic substance | |
| JP2514067Y2 (en) | Ceramic transformer | |
| JPH0542336Y2 (en) | ||
| JPS63169545A (en) | Terminal for measuring electrical conductivity | |
| JPS6196320U (en) | ||
| JPH0537208Y2 (en) | ||
| JPH0355866Y2 (en) | ||
| JPH0542334Y2 (en) | ||
| JPH0542337Y2 (en) | ||
| JPH0610256Y2 (en) | Ceramic electromagnetic flowmeter | |
| JP3015580B2 (en) | Electromagnetic flow meter | |
| JPH0298660A (en) | Gas concentration sensor | |
| JP3379748B2 (en) | Solid electrolyte type nitrogen oxide sensor | |
| JPH01167626U (en) | ||
| JPS58184615U (en) | Electromagnetic flow meter for molten metal | |
| JPH0545194A (en) | Electromagnetic flowmeter | |
| JPH0234605Y2 (en) | ||
| JPS6387521U (en) | ||
| JPH0380248B2 (en) | ||
| JPH0541375Y2 (en) | ||
| SU494627A1 (en) | temperature sensor | |
| US4214967A (en) | Technique for reducing solid electrolyte cell drift |