JPS6420442A - Smoke sensor for engine - Google Patents

Smoke sensor for engine

Info

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
Application number
JP17638487A
Other languages
Japanese (ja)
Inventor
Yuji Akagi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mazda Motor Corp filed Critical Mazda Motor Corp
Priority to JP17638487A priority Critical patent/JPS6420442A/en
Publication of JPS6420442A publication Critical patent/JPS6420442A/en
Pending legal-status Critical Current

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  • 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.
JP17638487A 1987-07-15 1987-07-15 Smoke sensor for engine Pending JPS6420442A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101995138B1 (en) * 2017-12-22 2019-07-01 권찬근 Magnetic induction type smoke detector

Cited By (1)

* Cited by examiner, † Cited by third party
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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