JPS55132940A - Atmosphere gas measuring device - Google Patents
Atmosphere gas measuring deviceInfo
- Publication number
- JPS55132940A JPS55132940A JP4036179A JP4036179A JPS55132940A JP S55132940 A JPS55132940 A JP S55132940A JP 4036179 A JP4036179 A JP 4036179A JP 4036179 A JP4036179 A JP 4036179A JP S55132940 A JPS55132940 A JP S55132940A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- characteristic value
- change
- electrical characteristic
- target gas
- 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
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
PURPOSE: To improve the accuracy of the density measurement of the target gas and prevent the malfunction of the device even when plural kinds of gases mix by detecting the age change of the electrical characteristic value of a gas detecting element with a change in temperature.
CONSTITUTION: A gas detecting element 1 whose electrical characteristic value is determined according to the density of the target gas, a device 6 which supplies electric power to a heater 4 so that the element 1 repeatedly assumes a high-temperature state and a low-temperature state and a device 5 which detects the age change of the electrical characteristic value of the element 1 for the specified time are provided. Here, the gas sensing body 3 on the the substrate 2 of the element 1 is composed primarily of tin oxide and has the characteristic that its electrical conductivity increases when contacted with butane gas or the like. The density of the target gas is measured with good accuracy from the age change of the electrical characteristic value of the element 1 with a change in temperature. It is also possible to simultaneously detect the kinds and densities of gases other than the target gas.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4036179A JPS55132940A (en) | 1979-04-05 | 1979-04-05 | Atmosphere gas measuring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4036179A JPS55132940A (en) | 1979-04-05 | 1979-04-05 | Atmosphere gas measuring device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55132940A true JPS55132940A (en) | 1980-10-16 |
Family
ID=12578491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4036179A Pending JPS55132940A (en) | 1979-04-05 | 1979-04-05 | Atmosphere gas measuring device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55132940A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57198854A (en) * | 1981-06-02 | 1982-12-06 | Riken Keiki Kk | Identifying and detecting device for gas |
US8248253B2 (en) | 2008-04-21 | 2012-08-21 | Honeywell International Inc. | Fire detector incorporating a gas sensor |
-
1979
- 1979-04-05 JP JP4036179A patent/JPS55132940A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57198854A (en) * | 1981-06-02 | 1982-12-06 | Riken Keiki Kk | Identifying and detecting device for gas |
US8248253B2 (en) | 2008-04-21 | 2012-08-21 | Honeywell International Inc. | Fire detector incorporating a gas sensor |
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