JPS6420442A - Smoke sensor for engine - Google Patents
Smoke sensor for engineInfo
- Publication number
- JPS6420442A JPS6420442A JP17638487A JP17638487A JPS6420442A JP S6420442 A JPS6420442 A JP S6420442A JP 17638487 A JP17638487 A JP 17638487A JP 17638487 A JP17638487 A JP 17638487A JP S6420442 A JPS6420442 A JP S6420442A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- generating means
- field generating
- exhaust gas
- magnetic flux
- 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 Magnetic Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
PURPOSE:To continuously detect the quantity of smoke in exhaust gas with high accuracy, by providing a magnetic field generating means in an exhaust passage, and detecting the magnitude of the distortion of a magnetic flux due to passing of carbon in the exhaust gas by using an electromagnetic coil. CONSTITUTION:A magnetic field generating means 16 for generating a magnetic field in an exhaust passage 7 of an engine is provided, and also, in the vicinity of this magnetic field generating means 16, electromagnetic coils 20, 20' are arranged. When exhaust gas flow down through the exhaust passage 7, and passes through the magnetic field part generated by said magnetic field generating means 16, its magnetic flux is distorted in accordance with the quantity of carbon in the exhaust gas. In this case, the magnetic field generating means 16 operates so as to restore the magnetic flux to its original state. As a result, in the adjacent electromagnetic coils 20, 20', an induced voltage corresponding to the degree of the distortion of the magnetic flux is generated, and an induced current corresponding to said carbon quantity flows. Accordingly, by detecting this induced current by a current value detecting means, the quantity of smoke which is being exhausted can be detected continuously.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17638487A JPS6420442A (en) | 1987-07-15 | 1987-07-15 | Smoke sensor for engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17638487A JPS6420442A (en) | 1987-07-15 | 1987-07-15 | Smoke sensor for engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6420442A true JPS6420442A (en) | 1989-01-24 |
Family
ID=16012700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17638487A Pending JPS6420442A (en) | 1987-07-15 | 1987-07-15 | Smoke sensor for engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6420442A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101995138B1 (en) * | 2017-12-22 | 2019-07-01 | 권찬근 | Magnetic induction type smoke detector |
-
1987
- 1987-07-15 JP JP17638487A patent/JPS6420442A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101995138B1 (en) * | 2017-12-22 | 2019-07-01 | 권찬근 | Magnetic induction type smoke detector |
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