JPH0311431B2 - - Google Patents
Info
- Publication number
- JPH0311431B2 JPH0311431B2 JP56079865A JP7986581A JPH0311431B2 JP H0311431 B2 JPH0311431 B2 JP H0311431B2 JP 56079865 A JP56079865 A JP 56079865A JP 7986581 A JP7986581 A JP 7986581A JP H0311431 B2 JPH0311431 B2 JP H0311431B2
- Authority
- JP
- Japan
- Prior art keywords
- solid electrolyte
- probe
- oxygen meter
- contact
- lead
- 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
- 239000007784 solid electrolyte Substances 0.000 claims description 34
- 239000000523 sample Substances 0.000 claims description 32
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 17
- 239000001301 oxygen Substances 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 10
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 7
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 32
- 239000007789 gas Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- ZCUFMDLYAMJYST-UHFFFAOYSA-N thorium dioxide Chemical compound O=[Th]=O ZCUFMDLYAMJYST-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
Description
【発明の詳細な説明】 本発明は固体電解質酸素計に関する。[Detailed description of the invention] The present invention relates to a solid electrolyte oxygen meter.
固体電解質酸素計には種々の形式のものが実用
化されているが、その中でも、直接挿入形酸素計
はサンプリング装置を必要としないので、応答性
が良い、ダスト、ドレンによるトラブルが少ない
等の長所を有し、最近注目されている。 There are various types of solid electrolyte oxygen meters in practical use, but among them, direct insertion oxygen meters do not require a sampling device, so they have good response and are less likely to cause troubles due to dust or condensate. It has many advantages and has been attracting attention recently.
この種の酸素計は、先端に、ジルコニア、セリ
ア、トリア等の固体電解質による隔壁が形成され
るプローブ形検出部を有し、その検出部を測定ガ
スが流れる流路や炉の壁に設けられた挿入口から
挿入設置して、濃度信号を連続して得るようにな
つている。 This type of oxygen meter has a probe-shaped detection section with a partition wall made of a solid electrolyte such as zirconia, ceria, or thoria at its tip, and the detection section is installed in the flow path through which the measurement gas flows or on the wall of the furnace. It is designed to be inserted into the insertion slot and to obtain concentration signals continuously.
上記プローブ形検出部が挿入される測定箇所
は、通常、高温雰囲気（200〜500℃）で、かつ、
ダスト等が多い。このため、固体電解質の壁の両
面に密着設置した電極膜が剥れたり、その間隙に
ダストが付着したりして、特性が劣化するので、
適宜、固体電解質を交換する必要がある。しかる
に従来のプローブ形検出部は、固体電解質、ヒー
タ等がプローブの先端に一体化されており、固体
電解質のみ交換が簡単に出来ない構造となつてい
た。したがつて、固体電解質の交換はプローブ形
検出部一式を交換することになり割高なものとな
つていた。また、固体電解質のみを交換する場合
でも、電極膜用のワイヤリードの取りはずし、取
り付け作業があつて面倒で、時間を要していた。 The measurement location where the probe type detection section is inserted is usually in a high temperature atmosphere (200 to 500 degrees Celsius), and
There is a lot of dust etc. As a result, the electrode films that are placed closely on both sides of the solid electrolyte wall may peel off, and dust may adhere to the gaps between them, degrading the characteristics.
It is necessary to replace the solid electrolyte as appropriate. However, the conventional probe-type detection section has a solid electrolyte, a heater, etc. integrated into the tip of the probe, and has a structure in which only the solid electrolyte cannot be easily replaced. Therefore, replacing the solid electrolyte requires replacing the entire probe-type detection unit, which is expensive. Furthermore, even when only the solid electrolyte is replaced, the work of removing and attaching the wire leads for the electrode membranes is cumbersome and time consuming.
本発明はかかる点に鑑みてなされたものであ
り、その目的は、プローブ形検出部における固体
電解質の交換を簡単に伝えるようにして保守コス
トを低減するために、リードレスのセルユニツト
を具備する固体電解質酸素計を提供するにある。 The present invention has been made in view of the above problems, and an object of the present invention is to provide a solid state electrolyte equipped with a leadless cell unit in order to easily communicate the replacement of the solid electrolyte in the probe type detection section and reduce maintenance costs. We are here to provide electrolyte oxygen meters.
上記目的を実現した本発明は、プローブの先端
近傍の内壁に、電気的絶縁部材を介在して設置さ
れる接触部と、プローブの先端から挿入され、プ
ロープの先端に設置される試験管形固体電解質で
あつて、固体電解質の閉塞端、又は、その近傍の
外壁面及び内壁面夫々に密着設置される第１及び
第２電極、固体電解質の外壁面に密着設置され、
第１電極と接触部を電気的に接続する第１リード
並びに固体電解質の内壁面に密着設置され、第２
電極と固体電解質の開口端面を電気的に接続する
第２リードを有する試験管形固体電解質と、接触
部及び開口端面夫々に電気的に接続され、第１及
び第２電極によつて検出される信号を取り出す第
１及び第２導電部材とを有するようになつてい
る。 The present invention, which has achieved the above object, includes a contact part installed on the inner wall near the tip of the probe with an electrically insulating member interposed therebetween, and a test tube-shaped solid inserted from the tip of the probe and installed at the tip of the probe. first and second electrodes that are an electrolyte and are installed in close contact with the closed end of the solid electrolyte or an outer wall surface and an inner wall surface in the vicinity thereof, respectively, and are installed in close contact with the outer wall surface of the solid electrolyte;
The first lead electrically connects the first electrode and the contact part, and the second lead is installed in close contact with the inner wall surface of the solid electrolyte.
A test tube solid electrolyte having a second lead that electrically connects the electrode and the open end surface of the solid electrolyte, and a test tube solid electrolyte that is electrically connected to the contact portion and the open end surface, respectively, and detected by the first and second electrodes. It has first and second conductive members from which signals are extracted.
以下、図面を参照し本発明について説明する。 The present invention will be described below with reference to the drawings.
第１図及び第２図イ，ロは、本発明の一実施例
による酸素計の構成説明図で、第１図は、検出部
の要部説明図、第２図は、その要部の一部拡大説
明図である。 Figures 1 and 2 A and 2 are explanatory diagrams of the configuration of an oxygen meter according to an embodiment of the present invention. FIG.
各図において、１は胴部にさし込み溶接して取
付られたフランジ２によつて炉壁３に設置される
導電性部材から成るプローブ、４は試験管形ジル
コニア５及びフランジ６から成り、プローブ１の
先端に設置されるセルユニツトである。試験管形
ジルコニア５は、閉塞端の外壁面及び内壁面夫々
に、多孔質白金電極膜７及び８と、外壁面に白金
ペースト焼付けによつて形成されるリング形状部
９ａ及び、このリング形状部９ａと電極膜７を電
気的に接続する連結部９ｂから成るリード９と、
ジルコニア５の開口端面に白金ペースト焼付けに
よつて形成される接触面１０ａ及び内壁面に白金
ペースト焼付けによつて形成され、接触面１０ａ
と電極膜８を電気的に接続する連結部１０ｂから
成るリード１０とを有する。１１はジルコニア５
を加熱するヒータで、ジルコニア５の閉塞端に設
置される温度センサ及び調整部（いずれも図示せ
ず）とで温度制御系が構成され、ジルコニア５は
この温度制御系によつて所定の温度に制御される
ようになつている。１２は内周面が凹形状のコン
タクトリング、１３はコンタクトリング１２の凹
部に嵌着されるニクロム線又は耐高温酸化性の金
属線コイルコンタクト、１４はコンタクトリング
１２をプローブ１に固着する高絶縁接着剤（例え
ば、スミセラム：商品名）、１５は絶縁碍子１６
に被覆されてプローブ１内に設置され、一端がコ
ンタクトリング１２に接続され、他端が外部端子
（図示せず）に接続されているワイヤリードであ
る。コイルコンタクト１３は、ジルコニア５がプ
ローブ１に設置された状態でリード９のリング形
状部９ａに接触し、電極膜７、リード９、コイル
コンタクト１３、コンタクトリング１２及びワイ
ヤリード１５から成る電気的導通部が形成される
ようになつている。１７はシステム製メツシユフ
イルタ、１８はフランジ、１９はボルトである。
メツシユフイルタ１７は、フランジ１８でジルコ
ニア５の開口端面に押圧されて設置され、電極膜
８、リード１０、メツシユフイルタ１７、フラン
ジ６及び１８並びにプローブ１から成る電気的導
通部が形成されるようになつている。２０はプロ
ーブ１室内において、ジルコニア５近傍を除いて
室内を上下に仕切る仕切板、２１はプローブ１の
非先端部に設置される導電性部材から成る有底円
筒形蓋、２２は蓋２１に接続されるワイヤリード
である。蓋２１は、仕切板２０で形成されたプロ
ーブ１の各室が個々に独立して外気に連通するよ
うになつている。また、蓋２１は、プローブ１と
電気的に結合されており、ワイヤリード２２によ
つて上記した電極膜８、プローブ１等で形成され
る電気的導電部が外部端子（図示せず）に接続さ
れるようになつている。 In each figure, 1 is a probe made of a conductive member installed on the furnace wall 3 by a flange 2 attached to the body by insert welding, 4 is a test tube-shaped zirconia 5 and a flange 6, This is a cell unit installed at the tip of the probe 1. The test tube-shaped zirconia 5 has porous platinum electrode films 7 and 8 on the outer and inner wall surfaces of the closed end, a ring-shaped portion 9a formed on the outer wall surface by baking platinum paste, and this ring-shaped portion. A lead 9 consisting of a connecting portion 9b that electrically connects the lead 9a and the electrode film 7;
A contact surface 10a is formed on the open end surface of the zirconia 5 by baking platinum paste, and a contact surface 10a is formed on the inner wall surface by baking platinum paste.
and a lead 10 consisting of a connecting portion 10b that electrically connects the electrode film 8. 11 is zirconia 5
A temperature control system is configured with a temperature sensor and an adjustment unit (both not shown) installed at the closed end of the zirconia 5, and the zirconia 5 is kept at a predetermined temperature by this temperature control system. It's becoming controlled. 12 is a contact ring with a concave inner circumferential surface; 13 is a nichrome wire or high-temperature oxidation-resistant metal wire coil contact that is fitted into the recess of the contact ring 12; and 14 is a highly insulated contact ring that fixes the contact ring 12 to the probe 1. Adhesive (for example, Sumiceram: trade name), 15 is an insulator 16
It is a wire lead that is coated with a wire and installed inside the probe 1, one end of which is connected to the contact ring 12, and the other end of which is connected to an external terminal (not shown). The coil contact 13 contacts the ring-shaped portion 9a of the lead 9 with the zirconia 5 installed on the probe 1, and is electrically conductive, consisting of the electrode film 7, the lead 9, the coil contact 13, the contact ring 12, and the wire lead 15. A section is starting to form. 17 is a system mesh filter, 18 is a flange, and 19 is a bolt.
The mesh filter 17 is pressed against the open end surface of the zirconia 5 by the flange 18 and installed, so that an electrically conductive portion consisting of the electrode film 8, the lead 10, the mesh filter 17, the flanges 6 and 18, and the probe 1 is formed. There is. 20 is a partition plate that partitions the probe 1 chamber into upper and lower parts except for the vicinity of the zirconia 5; 21 is a bottomed cylindrical lid made of a conductive member installed at the non-tip portion of the probe 1; and 22 is connected to the lid 21. This is the wire lead that will be used. The lid 21 allows each chamber of the probe 1 formed by the partition plate 20 to communicate with the outside air independently. The lid 21 is electrically connected to the probe 1, and the electrically conductive portion formed by the electrode film 8, the probe 1, etc. described above is connected to an external terminal (not shown) via a wire lead 22. It is becoming more and more common.
上記の酸素計の検出部において、測定時、プロ
ーブ１の先端は200〜500℃の測定ガスの流れの中
にあり、測定ガスは拡散、対流によつてフイルタ
１７を通してジルコニア５の中に入り、ジルコニ
ア５の内壁に常時接触する。一方、ジルコニア５
の外壁に接触するガス、即ち、プローブ１内部の
空気は、測定ガス、ヒータ１１等の熱量によつて
加熱され高温状態（約700〜800℃）になつている
ので、第１図に示すように、大気→プローブ１の
下の室→プローブ１の先端（ジルコニア５の近
傍）→プローブ１の上の室→大気の対流が形成さ
れる。このため、ジルコニア５の基準ガス側は、
常時、新鮮な空気に置換され、安定した検出信号
が電極膜７と８間で得られ、ワイヤリード１５及
び２１を介して出力信号を得ることができる。 In the detection section of the oxygen meter described above, during measurement, the tip of the probe 1 is in the flow of the measurement gas at 200 to 500°C, and the measurement gas enters the zirconia 5 through the filter 17 by diffusion and convection. It is always in contact with the inner wall of zirconia 5. On the other hand, zirconia 5
The gas in contact with the outer wall of the probe 1, that is, the air inside the probe 1, is heated by the heat of the measurement gas, heater 11, etc. and reaches a high temperature (approximately 700 to 800 degrees Celsius). Then, a convection flow is formed: the atmosphere → the chamber below the probe 1 → the tip of the probe 1 (near the zirconia 5) → the chamber above the probe 1 → the atmosphere. Therefore, the reference gas side of Zirconia 5 is
It is constantly replaced with fresh air, a stable detection signal is obtained between the electrode membranes 7 and 8, and an output signal can be obtained via the wire leads 15 and 21.
また、上記のように、セルユニツト４はフラン
ジ１８、ボルト１９等でプローブ１の端部に設置
され、かつ、電極膜７，８と外部端子との接続が
リード９，１０、コイルコンタクト１３、メツシ
ユフイルタ１７等を介在する接触構造となつてい
るので、セルユニツト４の取り付け、取りはずし
は簡単に行うことができる。 Further, as described above, the cell unit 4 is installed at the end of the probe 1 using the flange 18, bolts 19, etc., and the electrode films 7, 8 and external terminals are connected to each other by the leads 9, 10, the coil contact 13, the mesh filter, etc. 17, etc., so that the cell unit 4 can be easily attached and detached.
以上、詳しく説明したように、本発明の固体電
解質酸素計によれば、セルユニツトがリードレス
構造で、固体電解質の交換が簡単に行えるように
なつているので、保守コストを低減することがで
きる。 As described in detail above, according to the solid electrolyte oxygen meter of the present invention, the cell unit has a leadless structure and the solid electrolyte can be easily replaced, so that maintenance costs can be reduced.
第１図及び第２図イ，ロは、本発明の一実施に
よる固体電解質酸素計の構成説明図で、第１図
は、プローブ形検出部の構成説明図、第２図イ，
ロは、それの一部拡大説明図である。
１……プローブ、４……セルユニツト、５……
ジルコニア、６及び１８……フランジ、７及び８
……電極膜、９及び１０……リード、１１……ヒ
ータ、１２……コンタクトリング、１３……コイ
ルコンタクト、１４……絶縁接着剤、１５及び２
２……ワイヤリード、１６……碍子、１７……メ
ツシユフイルタ、２０……仕切板、２１……蓋。
1 and 2A and 2B are explanatory diagrams of the configuration of a solid electrolyte oxygen meter according to one embodiment of the present invention. FIG. 1 is an explanatory diagram of the configuration of a probe type detection section, and
B is a partially enlarged explanatory diagram thereof. 1...Probe, 4...Cell unit, 5...
Zirconia, 6 and 18...Flange, 7 and 8
... Electrode film, 9 and 10 ... Lead, 11 ... Heater, 12 ... Contact ring, 13 ... Coil contact, 14 ... Insulating adhesive, 15 and 2
2... wire lead, 16... insulator, 17... mesh filter, 20... partition plate, 21... lid.
Claims (1)
形成され該隔壁の内と外の酸素濃度に対応する信
号を検出するプローブ形検出部を有する固体電解
質酸素計において、 凹形状の内周面が形成され前記プローブの内壁
に絶縁性接着剤によつて固着されるコンタクトリ
ング及び該コンタクトリングの凹部に嵌着される
コイルコンタクトとからなり、前記プローブの先
端近傍の内側に電気的絶縁部材を介在して設置さ
れる接触部と、 前記プローブの先端から挿入され該プローブの
先端に設置される試験管形固体電解質であつて、
該固体電解質の閉塞端、又は、その近傍の外壁面
及び内壁面それぞれに密着設置される第１及び第
２電極、前記固体電解質の外壁面に密着設置さ
れ、前記第１電極と前記接触部を電気的に接続す
る第１リード並びに前記固体電解質の内壁面に密
着設置され、前記第２電極と該固体電解質の開口
端面を電気的に接続する第２リードを有する試験
管形固体電解質と、前記接触部及び回転口端面そ
れぞれに電気的に接続され、前記第１及び第２電
極によつて検出される信号を取出す第１及び第２
伝導部材とを具備することを特徴とする固体電解
質酸素計。 ２ 前記第１及び第２リードは、壁面に白金ペー
スト焼付けで形成された導電部であることを特徴
とする特許請求範囲第１項の固体電解質酸素計。 ３ 前記第１導電部材は、絶縁碍子で被覆され、
前記プローブ内に設置されるワイヤーリードであ
ることを特徴とする特許請求範囲第１項の固体電
解質酸素計。 ４ 前記第２導電部材は、前記固体電解質の開口
端面に設置される金属製メツシユフイルタと、該
フイルタを前記開口端面に押圧すると共に、前記
固体電解質を前記プローブに固着するフランジ
と、導電性プローブとからなることを特徴とする
特許請求範囲第１項の固体電解質酸素計。[Scope of Claims] 1. A solid electrolyte oxygen meter having a probe-shaped detection section in which a partition wall is formed by a solid electrolyte supported at the tip and detects a signal corresponding to the oxygen concentration inside and outside the partition wall, comprising: It consists of a contact ring having a shaped inner peripheral surface and fixed to the inner wall of the probe with an insulating adhesive, and a coil contact fitted into a recess of the contact ring, a contact part installed with an electrically insulating member interposed therebetween; a test tube-shaped solid electrolyte inserted from the tip of the probe and installed at the tip of the probe,
first and second electrodes that are installed in close contact with the outer wall surface and inner wall surface of the closed end of the solid electrolyte or in the vicinity thereof; a test tube-shaped solid electrolyte having a first lead for electrical connection and a second lead that is installed in close contact with an inner wall surface of the solid electrolyte and electrically connects the second electrode and the open end surface of the solid electrolyte; first and second electrodes that are electrically connected to the contact portion and the end surface of the rotating mouth, respectively, and take out signals detected by the first and second electrodes;
A solid electrolyte oxygen meter comprising a conductive member. 2. The solid electrolyte oxygen meter according to claim 1, wherein the first and second leads are conductive parts formed on a wall surface by baking platinum paste. 3 the first conductive member is covered with an insulator,
The solid electrolyte oxygen meter according to claim 1, wherein the solid electrolyte oxygen meter is a wire lead installed within the probe. 4. The second conductive member includes a metal mesh filter installed on the open end surface of the solid electrolyte, a flange that presses the filter against the open end surface and fixes the solid electrolyte to the probe, and a conductive probe. A solid electrolyte oxygen meter according to claim 1, characterized in that the solid electrolyte oxygen meter comprises:
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56079865A JPS57194348A (en) | 1981-05-26 | 1981-05-26 | Solid electrolyte oxygen meter |
| US06/353,920 US4430192A (en) | 1981-03-06 | 1982-03-02 | Oxygen gas analyzer using solid electrolyte |
| CA000397396A CA1180384A (en) | 1981-03-06 | 1982-03-02 | Oxygen gas analyzer using solid electrolyte |
| GB8206502A GB2096772B (en) | 1981-03-06 | 1982-03-05 | Oxygen gas analyzer using solid electrolyte |
| GB08223968A GB2112526B (en) | 1981-03-06 | 1982-08-20 | Oxygen gas analyzer using solid electrolyte |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56079865A JPS57194348A (en) | 1981-05-26 | 1981-05-26 | Solid electrolyte oxygen meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57194348A JPS57194348A (en) | 1982-11-29 |
| JPH0311431B2 true JPH0311431B2 (en) | 1991-02-15 |
Family
ID=13702091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56079865A Granted JPS57194348A (en) | 1981-03-06 | 1981-05-26 | Solid electrolyte oxygen meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57194348A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61240154A (en) * | 1985-04-18 | 1986-10-25 | Kiyataraa Kogyo Kk | Insert type oxygen concentration detector |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51103494A (en) * | 1975-02-01 | 1976-09-13 | Bosch Gmbh Robert | |
| JPS5337094A (en) * | 1976-07-17 | 1978-04-05 | Bbc Brown Boveri & Cie | Electroochemical measuring apparatus |
| JPS5585247A (en) * | 1978-10-13 | 1980-06-27 | Milton Roy Co | Probe for oxygen estimation meter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS553746U (en) * | 1978-06-22 | 1980-01-11 |
-
1981
- 1981-05-26 JP JP56079865A patent/JPS57194348A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51103494A (en) * | 1975-02-01 | 1976-09-13 | Bosch Gmbh Robert | |
| JPS5337094A (en) * | 1976-07-17 | 1978-04-05 | Bbc Brown Boveri & Cie | Electroochemical measuring apparatus |
| JPS5585247A (en) * | 1978-10-13 | 1980-06-27 | Milton Roy Co | Probe for oxygen estimation meter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57194348A (en) | 1982-11-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS584986B2 (en) | Oxygen concentration measuring device | |
| JPH0617891B2 (en) | Oxygen concentration detector | |
| GB2194846A (en) | Oxygen concentration measuring device | |
| JPS5965758A (en) | Electrochemical device and cell | |
| JPH0311431B2 (en) | ||
| JPS6133132B2 (en) | ||
| GB2096772A (en) | Oxygen gas analyzer using solid electrolyte | |
| JPH01201149A (en) | Composite gas sensor | |
| JPS5876757A (en) | Oxygen concentration detector | |
| JPS57197459A (en) | Oxygen density measuring device | |
| JPH0754313B2 (en) | Oxygen concentration detector | |
| JPS58100746A (en) | Detector of oxygen concentration | |
| JPS60243558A (en) | Analyzing device of oxygen gas concentration | |
| JP2000146885A (en) | Composite gas analyzing device and co gas analyzer used in this composite gas analyzing device | |
| JPS6113964Y2 (en) | ||
| JPS6385352A (en) | Apparatus for measuring concentration of industrial gas | |
| JPH0114534B2 (en) | ||
| JPS6334980B2 (en) | ||
| JPS5819554A (en) | Oxygen concentration detector | |
| JPS6363935A (en) | Industrial gas concentration measuring apparatus | |
| JPH067092B2 (en) | Industrial gas concentration measuring device | |
| JPS6363936A (en) | Industrial gas concentration measuring apparatus | |
| JPH0342367Y2 (en) | ||
| JPS6326565A (en) | Composite gas sensor | |
| JPH0234605Y2 (en) |