JPS6461658A - Gas detector - Google Patents
Gas detectorInfo
- Publication number
- JPS6461658A JPS6461658A JP21961687A JP21961687A JPS6461658A JP S6461658 A JPS6461658 A JP S6461658A JP 21961687 A JP21961687 A JP 21961687A JP 21961687 A JP21961687 A JP 21961687A JP S6461658 A JPS6461658 A JP S6461658A
- Authority
- JP
- Japan
- Prior art keywords
- value
- load
- detected
- control
- relational
- 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)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
PURPOSE:To discriminate whether a load operation is required or not so that adequate automatic operation control is enabled regardless of the atmosphere at the start of operation by comparing the detected values from a gas detecting means before and after the prescribed time and controlling a load by the absolute value of the difference therebetween. CONSTITUTION:The gas detecting means consists of a detecting part 1 consisting of a metal oxide semiconductor such as ZnO or SnO2 which is changed in conductive characteristic by sensing a reducing gas such as CO and an A/D conversion circuit 2 which converts the output level to a digital value. A detection control part 3 consists of a data memory part which stores the detected value, a relational discriminating part 6 which compares the absolute value of the difference between the reference value of a reference data memory part 5 and the detected value with a preset value and a reference data updating part 7 which updates the reference value after the comparison. A load control part 9 which operates to control the load 8 in spite of a change in the detected value to either a large or small value controls the stop and run of the load by the output of the relational discriminating part 6 if the load is an electric motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21961687A JPS6461658A (en) | 1987-09-02 | 1987-09-02 | Gas detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21961687A JPS6461658A (en) | 1987-09-02 | 1987-09-02 | Gas detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6461658A true JPS6461658A (en) | 1989-03-08 |
Family
ID=16738321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21961687A Pending JPS6461658A (en) | 1987-09-02 | 1987-09-02 | Gas detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6461658A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5256582A (en) * | 1989-02-10 | 1993-10-26 | Texas Instruments Incorporated | Method of forming complementary bipolar and MOS transistor having power and logic structures on the same integrated circuit substrate |
| JP2002350409A (en) * | 2001-05-29 | 2002-12-04 | Mitsubishi Heavy Ind Ltd | Impact inspection device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62294949A (en) * | 1986-06-13 | 1987-12-22 | Matsushita Electric Ind Co Ltd | Gas detector |
-
1987
- 1987-09-02 JP JP21961687A patent/JPS6461658A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62294949A (en) * | 1986-06-13 | 1987-12-22 | Matsushita Electric Ind Co Ltd | Gas detector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5256582A (en) * | 1989-02-10 | 1993-10-26 | Texas Instruments Incorporated | Method of forming complementary bipolar and MOS transistor having power and logic structures on the same integrated circuit substrate |
| JP2002350409A (en) * | 2001-05-29 | 2002-12-04 | Mitsubishi Heavy Ind Ltd | Impact inspection device |
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