JPH01124555U - - Google Patents
Info
- Publication number
- JPH01124555U JPH01124555U JP1900188U JP1900188U JPH01124555U JP H01124555 U JPH01124555 U JP H01124555U JP 1900188 U JP1900188 U JP 1900188U JP 1900188 U JP1900188 U JP 1900188U JP H01124555 U JPH01124555 U JP H01124555U
- Authority
- JP
- Japan
- Prior art keywords
- heating
- utility
- model registration
- gas sensor
- detection part
- 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
- 238000001514 detection method Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000007784 solid electrolyte Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims 1
- 239000003513 alkali Substances 0.000 claims 1
- 229910001413 alkali metal ion Inorganic materials 0.000 claims 1
- 229910002092 carbon dioxide Inorganic materials 0.000 claims 1
- 239000001569 carbon dioxide Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 229910052697 platinum Inorganic materials 0.000 claims 1
- 238000007650 screen-printing Methods 0.000 claims 1
- 238000004544 sputter deposition Methods 0.000 claims 1
- 238000007738 vacuum evaporation Methods 0.000 claims 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
Description
第１図は、本考案のＣＯ２検出部の縦断面図で
ある。第２図は、実施例１を示す。ａはＣＯ２検
出部の斜視図、ｂはコイルヒーターの斜視図、ｃ
はＣＯ２検出部とコイルヒーターをステムの上に
取り付けたＣＯ２ガスセンサの様子を示す図。第
３図は、実施例２を示す。ａはＣＯ２検出部の斜
視図、ｂは平板状ヒーターを示す斜視図、ｃはＣ
Ｏ２検出部及びヒーターをステムに取り付けたＣ
Ｏ２ガスセンサの様子を示す斜視図である。
符合の説明、１…ＣＯ２検出部、２…Ｎａ２Ｃ
Ｏ３層、３…ＣＯ２感応性電極、４…リード線、
５…固体電解質、６…ＣＯ２不感応性電極、７…
熱電対、８…無機接着剤、９…コイルヒーター、
１０…端子ピン、１１…ステム、１２…平板状ヒ
ーター、１３…発熱面、１４…発熱体、１５…耐
熱性セラジク、１６…リード線。
FIG. 1 is a longitudinal sectional view of the CO 2 detection section of the present invention. FIG. 2 shows Example 1. a is a perspective view of the CO2 detection unit, b is a perspective view of the coil heater, c
1 is a diagram showing a CO 2 gas sensor in which a CO 2 detection unit and a coil heater are attached to a stem. FIG. 3 shows Example 2. a is a perspective view of the CO 2 detection unit, b is a perspective view of the flat heater, c is C
C with O2 detector and heater attached to the stem
FIG. 2 is a perspective view showing an O 2 gas sensor. Explanation of symbols, 1... CO 2 detection unit, 2... Na 2 C
O 3 layer, 3... CO 2 sensitive electrode, 4... Lead wire,
5... Solid electrolyte, 6... CO 2 insensitive electrode, 7...
Thermocouple, 8... Inorganic adhesive, 9... Coil heater,
DESCRIPTION OF SYMBOLS 10...Terminal pin, 11...Stem, 12...Flat heater, 13...Heating surface, 14...Heating element, 15...Heat-resistant Cerajic, 16...Lead wire.
Claims (1)
導電性固体電解質（以下固体電解質という）及び
固体電解質上に設けられたＣＯ２感応性電極とＣ
Ｏ２不感応性電極からなるＣＯ２検出部を小型ヒ
ーターで作動温度（２００°Ｃ以上８００°Ｃ以
下）まで加熱し、両電極間の起電力からＣＯ２ガ
ス濃度を測定することを特徴とする、空気中のＣ
Ｏ２の濃度を測定するためのデバイスであつて、
前記ＣＯ２感応性電極が集電用金属電極上にアル
カリ炭酸塩層を設けることにより構成されるＣＯ
２ガスセンサ。 (2) ＣＯ２検出部の温度を精度よくコントロー
ルするために、熱電対をＣＯ２検出部に取り付け
たことを特徴とする、実用新案登録請求の範囲第
１項記載のＣＯ２ガスセンサ。 (3) ＣＯ２検出部加熱用ヒーターがＣＯ２検出
部を周囲より加熱する傍熱型であつて、電熱線コ
イル、あるいはセラミツク発熱体円筒よりなるこ
とを特徴とする実用新案登録請求の範囲第１項及
び第２項記載のＣＯ２ガスセンサ。 (4) ＣＯ２検出部加熱用ヒーターがＣＯ２検出
部を直接加熱するために密着型であつて、耐熱性
のセラミツク板の片面に、発熱用白金パターンを
スクリーン印刷、あるいは真空蒸着、スパツタリ
ング等で形成し、他面上にＣＯ２検出部を接着す
ることを特徴とする、実用新案登録請求の範囲第
１項及び第２項に記載のＣＯ２ガスセンサ。 (5) ＣＯ２検出部加熱用ヒーターが密着型であ
つて、平板状のセラミツク発熱体よりなることを
特徴とする、実用新案登録請求の範囲第１項及び
第２項記載のＣＯ２ガスセンサ。[Scope of Claim for Utility Model Registration] (1) A small piece-shaped alkali metal ion conductive solid electrolyte (hereinafter referred to as solid electrolyte) with a length of 5 mm or less, a CO 2 sensitive electrode provided on the solid electrolyte, and C
The CO 2 detection unit consisting of an O 2 insensitive electrode is heated to the operating temperature (200°C or more and 800°C or less) with a small heater, and the CO 2 gas concentration is measured from the electromotive force between the two electrodes. C in the air
A device for measuring the concentration of O2 , the device comprising:
The CO 2 sensitive electrode is constructed by providing an alkali carbonate layer on a current collecting metal electrode.
2 gas sensors. (2) The CO 2 gas sensor according to claim 1 of the utility model registration, characterized in that a thermocouple is attached to the CO 2 detection unit in order to accurately control the temperature of the CO 2 detection unit. (3) Claim No. 1 for utility model registration, characterized in that the heater for heating the CO 2 detection part is an indirect heating type that heats the CO 2 detection part from the surroundings, and is made of a heating wire coil or a ceramic heating cylinder. CO 2 gas sensor according to Items 1 and 2. (4) The heater for heating the CO 2 detection part is a close-contact type in order to directly heat the CO 2 detection part, and a heat-generating platinum pattern is printed on one side of a heat-resistant ceramic plate by screen printing, vacuum evaporation, sputtering, etc. The CO 2 gas sensor according to claims 1 and 2 of the utility model registration claim, characterized in that the CO 2 gas sensor is formed of a carbon dioxide gas and has a CO 2 detection portion adhered to the other surface thereof. (5) The CO 2 gas sensor according to claims 1 and 2 of the utility model registration, characterized in that the heater for heating the CO 2 detection part is of a contact type and is made of a flat ceramic heating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1900188U JPH01124555U (en) | 1988-02-15 | 1988-02-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1900188U JPH01124555U (en) | 1988-02-15 | 1988-02-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01124555U true JPH01124555U (en) | 1989-08-24 |
Family
ID=31234136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1900188U Pending JPH01124555U (en) | 1988-02-15 | 1988-02-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01124555U (en) |
-
1988
- 1988-02-15 JP JP1900188U patent/JPH01124555U/ja active Pending
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