JP5032836B2 - オイルミスト検出装置 - Google Patents
オイルミスト検出装置 Download PDFInfo
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- JP5032836B2 JP5032836B2 JP2006343790A JP2006343790A JP5032836B2 JP 5032836 B2 JP5032836 B2 JP 5032836B2 JP 2006343790 A JP2006343790 A JP 2006343790A JP 2006343790 A JP2006343790 A JP 2006343790A JP 5032836 B2 JP5032836 B2 JP 5032836B2
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- 238000001514 detection method Methods 0.000 title claims description 101
- 239000003595 mist Substances 0.000 title claims description 95
- 230000002159 abnormal effect Effects 0.000 claims description 30
- 230000005540 biological transmission Effects 0.000 claims description 24
- 230000005856 abnormality Effects 0.000 claims description 22
- 230000003287 optical effect Effects 0.000 claims description 11
- 238000011109 contamination Methods 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 5
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 92
- 230000007423 decrease Effects 0.000 description 8
- 238000005259 measurement Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000005192 partition Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
- G01N21/8507—Probe photometers, i.e. with optical measuring part dipped into fluid sample
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
- G01N21/274—Calibration, base line adjustment, drift correction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
- G01N2021/155—Monitoring cleanness of window, lens, or other parts
- G01N2021/157—Monitoring by optical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
- G01N2021/8557—Special shaping of flow, e.g. using a by-pass line, jet flow, curtain flow
- G01N2021/8564—Sample as drops
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/94—Investigating contamination, e.g. dust
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/064—Stray light conditioning
- G01N2201/0642—Light traps; baffles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2888—Lubricating oil characteristics, e.g. deterioration
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pathology (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Dispersion Chemistry (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Description
具体的にオイルミスト検出装置1は、図1及び図2に示すように、先端側がクランクケースCの内側にほぼ水平〜約15°下向きに突出するように、当該クランクケースCの壁に設けた取付孔C1に外部から貫通させて取り付けられる円筒状の検出部11と、その検出部11の基端に連設される直方体状の制御装置12とを備えている。
次に、このように構成した本実施形態のオイルミスト検出装置1の動作について説明する。
汚れ異常値を設定するのは、基本的には、製品製造時の例えばゼロ点調整時である。すなわち、オイルミストが存在しない状態において、発光手段2が照射光LBを射出したときに、受光手段3が受光した背景散乱光BLSによって出力する検出信号に基づいて、このときのオイルミスト濃度を0mg/Lに設定するとともに、このときの検出信号の例えば50〜80%を汚れ異常値として設定する。なお、ディーゼル機関停止時、つまりオイルミストが存在しない状態において、オペレータがこれらを設定しても良い。
窓汚れは、オイルミストが無い状態(ディーゼル機関停止時)において検出する。特に、ディーゼル機関を長期間停止させた後再び作動させる前に、オペレータにより予め設定してある汚れ異常値と、現在の検出信号が示す測定値(ゼロ点)とを比較して、透光窓Wが所定以上汚れているかを判断する。このとき、検出信号受付部121は、受光手段3から検出信号を受け付けて、その検出信号を汚れ異常判断部122に出力する。そして、その検出信号を受信した汚れ異常判断部122は、検出信号が示す測定値と、ゼロ点の低下量の下限(汚れ異常値)とを比較して、測定値が汚れ異常値を下回ったと判断したときは、その判断信号を報知手段9に出力し、その判断信号を受信した報知手段9は、オペレータに報知する。これによりオペレータは、透光窓が所定以上汚れていることを知ることができる。
このように構成した本実施形態に係るオイルミスト検出装置1によれば、ゼロ点シフト構造により意図的にゼロ点を上げて、透光窓Wの汚れ異常による受光光量の低下を検出することができるので、透光窓Wの汚れを簡単且つ確実に検出することができる。
なお、本発明は前記実施形態に限られるものではない。以下の説明において前記実施形態に対応する部材には同一の符号を付すこととする。
W ・・・透光窓
S ・・・検出領域
LS・・・散乱光
LB・・・光(照射光)
2 ・・・発光手段
Claims (2)
- 内燃機関のクランクケース内に配置されるオイルミスト導入室を有したケーシングと、このオイルミスト導入室に設けた透光窓の外側に臨むように配置した発光手段及び受光手段とを備え、前記発光手段から前記透光窓を介してオイルミスト導入室内の所定検出領域に光を照射するとともに、その検出領域に存在するオイルミストに前記光が当たって生じる散乱光を、前記透光窓を介して前記受光手段が受光することによりオイルミストを検出するものであって、
前記オイルミスト導入室内にオイルミストが存在しない状態において、前記ケーシングからの背景散乱光を前記受光手段に意図的に一定量入射させて、当該受光手段による検出信号のゼロ点を意図的に上げるゼロ点シフト構造と、
前記受光手段からの前記検出信号を受け付けて所定の演算処理を行う制御装置と備え、
前記ケーシングが、先端面が封止された概略円筒形状をなすものであり、先端側に前記オイルミスト導入室及び基端側に前記発光手段及び前記受光手段を収容するセンサ収容室を有しており、前記オイルミスト導入室及び前記センサ収容室が前記投光窓により仕切られており、
前記ゼロ点シフト構造は、前記透光窓から前記検出領域へ向かう照射光の光軸延長線と、前記検出領域から透光窓に向かう散乱光の光軸延長線とを区切るようにして設けられた遮光部材の長さが調節されることにより構成されるものであり、
前記制御装置が、背景散乱光のみを検出した前記検出信号であるゼロ点信号を受信して、そのゼロ点が所定値低下した値である汚れ異常値と前記受光手段からの前記検出信号が示す検出信号値とを比較して、前記検出信号値が前記汚れ異常値よりも小さい場合には、透光窓が汚れていると判断する汚れ異常判断部と、を備えているオイルミスト検出装置。 - 前記汚れ異常判断部からの判断信号を受信して、前記透光窓の汚れを報知する報知手段を備えている請求項1記載のオイルミスト検出装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006343790A JP5032836B2 (ja) | 2006-12-21 | 2006-12-21 | オイルミスト検出装置 |
KR1020070126889A KR101319801B1 (ko) | 2006-12-21 | 2007-12-07 | 오일 미스트 검출 장치 |
EP20070024122 EP1936358B1 (en) | 2006-12-21 | 2007-12-12 | Oil mist detector |
CN2007101598169A CN101206176B (zh) | 2006-12-21 | 2007-12-20 | 油雾检测装置 |
HK08113059.3A HK1119246A1 (en) | 2006-12-21 | 2008-11-28 | Oil mist detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006343790A JP5032836B2 (ja) | 2006-12-21 | 2006-12-21 | オイルミスト検出装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008157648A JP2008157648A (ja) | 2008-07-10 |
JP5032836B2 true JP5032836B2 (ja) | 2012-09-26 |
Family
ID=39149261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006343790A Active JP5032836B2 (ja) | 2006-12-21 | 2006-12-21 | オイルミスト検出装置 |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1936358B1 (ja) |
JP (1) | JP5032836B2 (ja) |
KR (1) | KR101319801B1 (ja) |
CN (1) | CN101206176B (ja) |
HK (1) | HK1119246A1 (ja) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5299241B2 (ja) * | 2008-11-28 | 2013-09-25 | 株式会社島津製作所 | パーティクル計数装置 |
KR101153901B1 (ko) * | 2010-05-18 | 2012-06-18 | (주)광산 | 오일미스트 검출장치 |
CN102297023B (zh) * | 2011-07-14 | 2013-03-06 | 北京新航智科技有限公司 | 一种防止油滴飞溅侵扰油雾传感器的开放式腔体结构 |
EP2645100A1 (en) | 2012-03-27 | 2013-10-02 | Siemens Aktiengesellschaft | Infrared spectrometer measurement of droplets collected from an oil mist in a breather pipe of a gas turbine |
EP2645077A1 (en) | 2012-03-27 | 2013-10-02 | Siemens Aktiengesellschaft | Sample collecting device for droplet and gas sampling in narrow ducts of a gas turbine or any other device with an oil breather |
JP2014044157A (ja) * | 2012-08-28 | 2014-03-13 | Ricoh Co Ltd | 光学センサ及び画像形成装置 |
CN103558187A (zh) * | 2013-11-02 | 2014-02-05 | 中国工程物理研究院流体物理研究所 | 水雾浓度测量装置及测量方法 |
US9629204B2 (en) | 2014-03-21 | 2017-04-18 | Teledyne Instruments, Inc. | Detection and correction of window moisture condensation |
CN103984310A (zh) * | 2014-05-12 | 2014-08-13 | 华迪计算机集团有限公司 | 基于多源遥感数据的化工园区环境污染检测方法和装置 |
EP3037804A1 (de) * | 2014-12-22 | 2016-06-29 | Grundfos Holding A/S | Verfahren zum quantitativen und qualitativen Erfassen von Partikeln in Flüssigkeit |
JP6522404B2 (ja) * | 2015-04-22 | 2019-05-29 | 株式会社堀場製作所 | オイルミスト検出装置、オイルミスト検出方法 |
KR101853104B1 (ko) | 2016-09-30 | 2018-04-27 | 주식회사동일기연 | 광학식 초미세먼지 측정 센서 |
KR102660931B1 (ko) * | 2017-01-24 | 2024-04-25 | 삼성전자주식회사 | 공기 상태 측정 장치 및 그 방법 |
DE102017204037A1 (de) * | 2017-03-10 | 2018-09-13 | Robert Bosch Gmbh | Optischer Sensor mit Belagssensor |
EP3588055A1 (en) * | 2018-06-21 | 2020-01-01 | Koninklijke Philips N.V. | Laser sensor module with indication of readiness for use |
WO2020175070A1 (ja) * | 2019-02-26 | 2020-09-03 | パナソニックIpマネジメント株式会社 | 散乱体測定方法及び散乱体測定装置 |
JP7388894B2 (ja) | 2019-11-29 | 2023-11-29 | ダイハツディーゼル株式会社 | オイルミスト検出装置 |
CN116660114A (zh) * | 2023-04-12 | 2023-08-29 | 中国长江电力股份有限公司 | 一种水电站发电机风洞内涡轮机油油雾浓度监测方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB804541A (en) * | 1954-11-05 | 1958-11-19 | Graviner Manufacturing Co | Improvements in detectors of oil mists and the like |
DE8128634U1 (de) * | 1981-09-30 | 1982-03-04 | Siemens AG, 1000 Berlin und 8000 München | Messeinrichtung zur entnahmefreien optischen gasanalyse, insbesondere rauchgasanalyse |
JPS59202596A (ja) * | 1983-04-30 | 1984-11-16 | 松下電工株式会社 | 火災報知システム |
US5028790A (en) * | 1990-05-07 | 1991-07-02 | Lear Siegler Measurement Controls Corporation | Apparatus for full-system zero check and window soiling measurement and correction for transmissometers |
JP3236708B2 (ja) * | 1993-08-17 | 2001-12-10 | ホーチキ株式会社 | 散乱光式煙感知器 |
GB2309076B (en) * | 1996-01-10 | 1999-08-11 | Kidde Fire Protection Ltd | Particle separation and detection apparatus |
JP3957639B2 (ja) * | 2003-01-10 | 2007-08-15 | 株式会社堀場製作所 | オイルミスト検出装置 |
JP3840470B2 (ja) * | 2003-12-03 | 2006-11-01 | 株式会社堀場製作所 | オイルミスト検出装置 |
-
2006
- 2006-12-21 JP JP2006343790A patent/JP5032836B2/ja active Active
-
2007
- 2007-12-07 KR KR1020070126889A patent/KR101319801B1/ko active IP Right Grant
- 2007-12-12 EP EP20070024122 patent/EP1936358B1/en active Active
- 2007-12-20 CN CN2007101598169A patent/CN101206176B/zh active Active
-
2008
- 2008-11-28 HK HK08113059.3A patent/HK1119246A1/xx unknown
Also Published As
Publication number | Publication date |
---|---|
EP1936358B1 (en) | 2015-05-06 |
HK1119246A1 (en) | 2009-02-27 |
KR101319801B1 (ko) | 2013-10-17 |
CN101206176A (zh) | 2008-06-25 |
EP1936358A1 (en) | 2008-06-25 |
CN101206176B (zh) | 2012-12-12 |
JP2008157648A (ja) | 2008-07-10 |
KR20080058181A (ko) | 2008-06-25 |
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