AU2003296329B2 - Turbidity sensor - Google Patents
Turbidity sensor Download PDFInfo
- Publication number
- AU2003296329B2 AU2003296329B2 AU2003296329A AU2003296329A AU2003296329B2 AU 2003296329 B2 AU2003296329 B2 AU 2003296329B2 AU 2003296329 A AU2003296329 A AU 2003296329A AU 2003296329 A AU2003296329 A AU 2003296329A AU 2003296329 B2 AU2003296329 B2 AU 2003296329B2
- Authority
- AU
- Australia
- Prior art keywords
- light
- turbidity sensor
- sensor according
- optical
- watertight housing
- 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.)
- Ceased
Links
- 230000003287 optical effect Effects 0.000 claims description 76
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 230000005284 excitation Effects 0.000 claims description 24
- 239000000835 fiber Substances 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 11
- 229910052594 sapphire Inorganic materials 0.000 claims description 9
- 239000010980 sapphire Substances 0.000 claims description 9
- 238000004382 potting Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 239000013307 optical fiber Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000011109 contamination Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 230000003595 spectral effect Effects 0.000 claims description 2
- 239000012780 transparent material Substances 0.000 claims 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 230000005855 radiation Effects 0.000 description 20
- 238000013461 design Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 239000008239 natural water Substances 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000012625 in-situ measurement Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000005304 optical glass Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- STPKWKPURVSAJF-LJEWAXOPSA-N (4r,5r)-5-[4-[[4-(1-aza-4-azoniabicyclo[2.2.2]octan-4-ylmethyl)phenyl]methoxy]phenyl]-3,3-dibutyl-7-(dimethylamino)-1,1-dioxo-4,5-dihydro-2h-1$l^{6}-benzothiepin-4-ol Chemical compound O[C@H]1C(CCCC)(CCCC)CS(=O)(=O)C2=CC=C(N(C)C)C=C2[C@H]1C(C=C1)=CC=C1OCC(C=C1)=CC=C1C[N+]1(CC2)CCN2CC1 STPKWKPURVSAJF-LJEWAXOPSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- PSLUFJFHTBIXMW-WYEYVKMPSA-N [(3r,4ar,5s,6s,6as,10s,10ar,10bs)-3-ethenyl-10,10b-dihydroxy-3,4a,7,7,10a-pentamethyl-1-oxo-6-(2-pyridin-2-ylethylcarbamoyloxy)-5,6,6a,8,9,10-hexahydro-2h-benzo[f]chromen-5-yl] acetate Chemical compound O([C@@H]1[C@@H]([C@]2(O[C@](C)(CC(=O)[C@]2(O)[C@@]2(C)[C@@H](O)CCC(C)(C)[C@@H]21)C=C)C)OC(=O)C)C(=O)NCCC1=CC=CC=N1 PSLUFJFHTBIXMW-WYEYVKMPSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 229930002868 chlorophyll a Natural products 0.000 description 1
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000243 photosynthetic effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
Classifications
-
- 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
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/063—Illuminating optical parts
- G01N2201/0638—Refractive parts
- G01N2201/0639—Sphere lens
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/315,142 | 2002-12-10 | ||
| US10/315,142 US6842243B2 (en) | 2001-12-10 | 2002-12-10 | Turbidity sensor |
| PCT/US2003/038948 WO2004053429A2 (en) | 2002-12-10 | 2003-12-10 | Turbidity sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2003296329A1 AU2003296329A1 (en) | 2004-06-30 |
| AU2003296329B2 true AU2003296329B2 (en) | 2009-07-09 |
Family
ID=32505870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2003296329A Ceased AU2003296329B2 (en) | 2002-12-10 | 2003-12-10 | Turbidity sensor |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6842243B2 (https=) |
| EP (1) | EP1579195B1 (https=) |
| JP (1) | JP4566002B2 (https=) |
| AU (1) | AU2003296329B2 (https=) |
| WO (1) | WO2004053429A2 (https=) |
Families Citing this family (67)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES1056475Y (es) * | 2003-12-18 | 2004-07-16 | Zertan Sa | Sensor de turbidez perfeccionado. |
| US20050232638A1 (en) * | 2004-04-02 | 2005-10-20 | Woods Hole Oceanographic Institution | Methods and apparatus for underwater wireless optical communication |
| WO2005106403A2 (en) * | 2004-04-21 | 2005-11-10 | Therm-O-Disc, Inc | Multi-function sensor |
| US7333899B2 (en) * | 2004-10-13 | 2008-02-19 | Therm-O-Disc, Incorporated | Fluid flow rate sensor and method of operation |
| US7142299B2 (en) | 2004-11-18 | 2006-11-28 | Apprise Technologies, Inc. | Turbidity sensor |
| US7319523B2 (en) * | 2005-09-26 | 2008-01-15 | Jetalon Solutions, Inc. | Apparatus for a liquid chemical concentration analysis system |
| US7518719B2 (en) * | 2006-01-27 | 2009-04-14 | Velcon Filters, Inc. | Contaminant analyzer for fuel |
| US20160121009A1 (en) * | 2006-02-06 | 2016-05-05 | Woods Hole Oceanographic Institution | Optical Communication Systems and Methods |
| US7953326B2 (en) * | 2006-02-06 | 2011-05-31 | Woods Hole Oceanographic Institution | Systems and methods for underwater optical communication |
| US9575087B2 (en) | 2012-09-06 | 2017-02-21 | Parker-Hannifin Corporation | Risk-managed, single-use, pre-calibrated, pre-sterilized sensors for use in bio-processing applications |
| WO2007113604A1 (en) * | 2006-03-31 | 2007-10-11 | Nokia Corporation | Electronic device having optical data connection of movable housing parts |
| US7580128B2 (en) * | 2006-11-01 | 2009-08-25 | Finesse Solutions, Llc. | Linear optical loss probe |
| US8164747B2 (en) * | 2006-12-14 | 2012-04-24 | ASD, Inc | Apparatus, system and method for optical spectroscopic measurements |
| US20090113939A1 (en) * | 2007-11-01 | 2009-05-07 | Eric Crumpton | Fiber-optic component and method for manufacturing the same |
| DE102008009213B4 (de) * | 2008-02-15 | 2010-09-02 | Perkinelmer Optoelectronics Gmbh & Co.Kg | Strahlungsleiter, Detektor, Herstellungsverfahren |
| JP2009198190A (ja) * | 2008-02-19 | 2009-09-03 | Suntory Holdings Ltd | 液中投入型発光センサ素子及び発光光度計 |
| US9194273B2 (en) | 2008-10-31 | 2015-11-24 | Cummins Inc. | Apparatus, system, and method for aftertreatment control and diagnostics |
| US8223337B2 (en) * | 2008-10-31 | 2012-07-17 | Cummins Inc. | Apparatus, system, and method for aftertreatment control and diagnostics |
| US8648322B2 (en) * | 2008-10-31 | 2014-02-11 | Cummins Inc. | Optical sensing in an adverse environment |
| US7659980B1 (en) | 2008-11-24 | 2010-02-09 | Herbert Leckie Mitchell | Nephelometric turbidity sensor device |
| US7663751B1 (en) | 2009-02-10 | 2010-02-16 | Herbert Leckie Mitchell | Nephelometer instrument for measuring turbidity of water |
| EP2221604A1 (en) * | 2009-02-19 | 2010-08-25 | Electrolux Home Products Corporation N.V. | Turbidity sensor |
| IT1395641B1 (it) * | 2009-03-06 | 2012-10-16 | Illinois Tool Works | Sensore di torbidita' per un elettrodomestico |
| US8602640B2 (en) * | 2009-05-20 | 2013-12-10 | Entegris—Jetalon Solutions, Inc. | Sensing system and method |
| ES2383386B1 (es) * | 2009-09-30 | 2013-05-06 | Consejo Superior De Investigaciones Científicas (Csic) | Turbidimetro portatil autonomo |
| US8429952B1 (en) | 2010-02-02 | 2013-04-30 | Campbell Scientific, Inc. | Sensor with antifouling control |
| US8248611B2 (en) | 2010-03-31 | 2012-08-21 | Ecolab Usa Inc. | Handheld optical measuring device and method of use |
| US8269193B2 (en) | 2010-03-31 | 2012-09-18 | Ecolab Usa Inc. | Handheld fluorometer and method of use |
| US8373140B2 (en) * | 2010-03-31 | 2013-02-12 | Ecolab Usa Inc. | Fluorometric sensor |
| RU2430354C1 (ru) * | 2010-04-29 | 2011-09-27 | Государственное учреждение "Арктический и Антарктический научно-исследовательский Институт" (ГУ "ААНИИ") | Морской турбидиметр |
| US8488122B2 (en) | 2010-05-05 | 2013-07-16 | Ysi Incorporated | Turbidity sensors and probes |
| US9170132B2 (en) | 2010-05-05 | 2015-10-27 | Ysi Incorporated | Replaceable probe head having an operational amplifier |
| US8664938B2 (en) | 2010-05-05 | 2014-03-04 | Ysi Incorporated | Replaceable probe head |
| US8218147B2 (en) | 2010-06-18 | 2012-07-10 | Cummins Inc. | Apparatus, system, and method for detecting engine fluid constituents |
| EP2487480B1 (en) * | 2011-02-09 | 2014-01-15 | ABB Technology AG | Optical sensor element and optical sample analysing apparatus |
| WO2012115670A1 (en) * | 2011-02-23 | 2012-08-30 | Ysi Incorporated | Turbidity sensors and probes |
| US8817259B2 (en) | 2011-03-25 | 2014-08-26 | Parker-Hannifin Corporation | Optical sensors for monitoring biopharmaceutical solutions in single-use containers |
| PT106279A (pt) | 2012-04-26 | 2013-10-28 | Univ Aveiro | Sensor e método para medida de turvação |
| US9091829B2 (en) | 2012-10-24 | 2015-07-28 | Corning Cable Systems Llc | Optical connection having magnetic coupling with a piston |
| WO2014066197A1 (en) * | 2012-10-24 | 2014-05-01 | Corning Cable Systems Llc | Optical connection having magnetic coupling with a piston |
| EP2912505B1 (en) | 2012-10-24 | 2020-06-03 | Corning Optical Communications LLC | Lens block for optical connection |
| JP2014235061A (ja) * | 2013-05-31 | 2014-12-15 | 東亜ディーケーケー株式会社 | 濁度センサ |
| KR101466384B1 (ko) | 2013-06-26 | 2014-11-27 | 글로벌광통신 (주) | 탁도센서 |
| CN103645159B (zh) * | 2013-11-12 | 2016-07-06 | 浙江大学苏州工业技术研究院 | 一种高精度海洋原位浊度监测仪 |
| US9261459B1 (en) | 2014-08-12 | 2016-02-16 | Ecolab Usa Inc. | Handheld fluorometer |
| US10429369B2 (en) | 2014-11-10 | 2019-10-01 | In-Situ, Inc. | Integrated user interface for status and control of a submersible multi-parameter sonde |
| EP4080207A1 (en) | 2014-11-10 | 2022-10-26 | In-Situ, Inc. | Compact sensor for measuring turbidity or fluorescence in a fluid sample |
| CA2967329C (en) | 2014-11-10 | 2022-11-22 | In-Situ, Inc. | Submersible multi-parameter sonde having a high sensor form factor sensor |
| USD755655S1 (en) | 2015-01-06 | 2016-05-10 | In-Situ, Inc. | Multi-parameter sonde and portions thereof, including sensor, sensor guard and brush thereof |
| USD803081S1 (en) | 2015-01-06 | 2017-11-21 | In-Situ, Inc. | Multi-parameter sonde having a guard with multiple paired passages |
| KR102758132B1 (ko) * | 2015-07-21 | 2025-01-20 | 플루이드센스 인터내셔널 주식회사 | 액체 또는 공기 중의 입자를 탐지하기 위한 시스템 및 방법 |
| US10365097B2 (en) | 2015-12-22 | 2019-07-30 | In-Situ, Inc. | Sonde having orientation compensation for improved depth determination |
| CN107356596B (zh) * | 2017-07-11 | 2018-11-23 | 南京工程学院 | 水下标定目标成像装置及光学图像法水质浊度在线检测方法 |
| CN109839353A (zh) * | 2017-11-29 | 2019-06-04 | 捷腾光电股份有限公司 | 水质传感器 |
| CN109839354A (zh) * | 2017-11-29 | 2019-06-04 | 捷腾光电股份有限公司 | 水质传感器 |
| US10408739B2 (en) * | 2018-01-08 | 2019-09-10 | Solteam Opto, Inc. | Water quality sensor suitable for automated production |
| WO2019186366A1 (en) | 2018-03-26 | 2019-10-03 | Universidade Do Minho | Turbidity optical sensor for underwater continuous in-situ marine or fluvial monitoring |
| US10707966B2 (en) * | 2018-05-14 | 2020-07-07 | California Institute Of Technology | Ultrafast omnidirectional wireless data transfer apparatus and system |
| EP3584774B1 (de) * | 2018-06-19 | 2025-03-05 | Wagner Group GmbH | Streulichtdetektor und ansaugbranderkennungssystem mit einem streulichtdetektor |
| CN109374582A (zh) * | 2018-10-26 | 2019-02-22 | 苏州奥特福环境科技有限公司 | 一种用于水下探测器的油封防水结构及水下探测器 |
| JP7056612B2 (ja) * | 2019-02-28 | 2022-04-19 | 横河電機株式会社 | 濁度測定方法及び濁度計 |
| TWI722785B (zh) | 2020-01-31 | 2021-03-21 | 台達電子工業股份有限公司 | 光學校正工具 |
| US11616574B2 (en) | 2020-03-26 | 2023-03-28 | California Institute Of Technology | Optical ground terminal |
| JP7451767B2 (ja) * | 2020-05-20 | 2024-03-18 | ワイエスアイ，インコーポレイティド | 拡張した立体角の濁度センサ |
| US12095508B2 (en) | 2021-09-22 | 2024-09-17 | California Institute Of Technology | Multi-link optical terabit terminal |
| CN115235534B (zh) * | 2022-06-06 | 2026-03-24 | 南方科技大学 | 一种液体压力测量与污染监测的微型传感器及其制作方法 |
| CN116642859A (zh) * | 2023-05-31 | 2023-08-25 | 南京聚格环境科技有限公司 | 一种散射法浊度传感器的光路结构 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3888269A (en) * | 1973-07-17 | 1975-06-10 | Whirlpool Co | Control system for dishwasher |
| US4197458A (en) * | 1978-07-31 | 1980-04-08 | Benno Perren | Electro-optical apparatus for the detection of the presence of liquid |
| US6324900B1 (en) * | 1999-07-21 | 2001-12-04 | Societe D'etude Et De Realisation D' Equipments Speciaux | Method and a device for optically measuring the transparency of a liquid |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51140673A (en) * | 1975-05-28 | 1976-12-03 | Meruka Denshi Kk | Turbiditimeter |
| US4707134A (en) * | 1984-12-04 | 1987-11-17 | The Dow Chemical Company | Fiber optic probe |
| DE3579124D1 (de) * | 1984-12-04 | 1990-09-13 | Dow Chemical Co | Faseroptische sonde und verfahren zur bestimmung der groesse und/oder konzentration von stoffen in einer suspension. |
| JPS61290342A (ja) * | 1985-06-14 | 1986-12-20 | バリアン・アソシエイツ・インコ−ポレイテツド | 液体クロマトグラフイ溶離剤吸光度検知器 |
| JPS6188126A (ja) * | 1985-09-27 | 1986-05-06 | Hitachi Ltd | 粉じん濃度測定装置 |
| GB8729038D0 (en) * | 1987-12-11 | 1988-01-27 | Honeywell Control Syst | Liquid level sensor |
| US4841157A (en) * | 1988-01-06 | 1989-06-20 | Downing Jr John P | Optical backscatter turbidimeter sensor |
| JPH02259451A (ja) * | 1989-03-30 | 1990-10-22 | Shimadzu Corp | 濁度計 |
| JPH0472550A (ja) * | 1990-05-10 | 1992-03-06 | Olympus Optical Co Ltd | 光学装置 |
| CA2057995C (en) * | 1990-12-30 | 1995-07-25 | Takeshi Mori | Water quality tester |
| DE4233220A1 (de) | 1992-10-02 | 1994-04-07 | Conducta Endress & Hauser | Verfahren und Vorrichtung zur Trübungsmessung bei wässrigen Medien |
| US5350922A (en) | 1993-03-22 | 1994-09-27 | Robert Bartz | Underwater light scattering sensor |
| JPH07294429A (ja) * | 1994-04-27 | 1995-11-10 | Aretsuku Denshi Kk | 濁度計及び濁色度計 |
| JP3031778U (ja) * | 1996-04-22 | 1996-12-03 | 笠原理化工業株式会社 | プローブ式濁度検出器 |
| US6614523B1 (en) * | 2000-06-14 | 2003-09-02 | The United States Of America As Represented By The Secretary Of The Navy | Sensor for performing surface enhanced Raman spectroscopy |
| DE50210345D1 (de) * | 2002-01-31 | 2007-08-02 | Emz Hanauer Gmbh & Co Kgaa | Trübungssensor mit Temperaturerfassung für Haushaltsgeräte |
| US6894778B2 (en) | 2002-04-23 | 2005-05-17 | Hach Company | Low detection limit turbidimeter |
-
2002
- 2002-12-10 US US10/315,142 patent/US6842243B2/en not_active Expired - Lifetime
-
2003
- 2003-12-10 AU AU2003296329A patent/AU2003296329B2/en not_active Ceased
- 2003-12-10 EP EP03812850.0A patent/EP1579195B1/en not_active Expired - Lifetime
- 2003-12-10 WO PCT/US2003/038948 patent/WO2004053429A2/en not_active Ceased
- 2003-12-10 JP JP2004559421A patent/JP4566002B2/ja not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3888269A (en) * | 1973-07-17 | 1975-06-10 | Whirlpool Co | Control system for dishwasher |
| US4197458A (en) * | 1978-07-31 | 1980-04-08 | Benno Perren | Electro-optical apparatus for the detection of the presence of liquid |
| US6324900B1 (en) * | 1999-07-21 | 2001-12-04 | Societe D'etude Et De Realisation D' Equipments Speciaux | Method and a device for optically measuring the transparency of a liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004053429A2 (en) | 2004-06-24 |
| EP1579195A4 (en) | 2007-01-03 |
| US6842243B2 (en) | 2005-01-11 |
| US20030117623A1 (en) | 2003-06-26 |
| WO2004053429A3 (en) | 2004-08-26 |
| EP1579195B1 (en) | 2017-08-16 |
| AU2003296329A1 (en) | 2004-06-30 |
| JP4566002B2 (ja) | 2010-10-20 |
| EP1579195A2 (en) | 2005-09-28 |
| JP2006510015A (ja) | 2006-03-23 |
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