CA2057995C - Water quality tester - Google Patents

Water quality tester

Info

Publication number
CA2057995C
CA2057995C CA002057995A CA2057995A CA2057995C CA 2057995 C CA2057995 C CA 2057995C CA 002057995 A CA002057995 A CA 002057995A CA 2057995 A CA2057995 A CA 2057995A CA 2057995 C CA2057995 C CA 2057995C
Authority
CA
Canada
Prior art keywords
measuring
sensor
calibration
measuring sensors
dissolved oxygen
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.)
Expired - Fee Related
Application number
CA002057995A
Other languages
English (en)
French (fr)
Other versions
CA2057995A1 (en
Inventor
Takeshi Mori
Hiromi Ohkawa
Satoshi Kohno
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.)
Horiba Ltd
Original Assignee
Horiba Ltd
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
Priority claimed from JP2416956A external-priority patent/JPH07113630B2/ja
Priority claimed from JP1991004354U external-priority patent/JP2561971Y2/ja
Application filed by Horiba Ltd filed Critical Horiba Ltd
Publication of CA2057995A1 publication Critical patent/CA2057995A1/en
Application granted granted Critical
Publication of CA2057995C publication Critical patent/CA2057995C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G01N33/18—Water
    • G01N33/1886—Water using probes, e.g. submersible probes, buoys
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/10—Composition for standardization, calibration, simulation, stabilization, preparation or preservation; processes of use in preparation for chemical testing

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Optical Measuring Cells (AREA)
CA002057995A 1990-12-30 1991-12-18 Water quality tester Expired - Fee Related CA2057995C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2-416956/1990 1990-12-30
JP2416956A JPH07113630B2 (ja) 1990-12-30 1990-12-30 水質チェッカー
JP1991004354U JP2561971Y2 (ja) 1991-01-16 1991-01-16 水質チェッカー
JP3-4354/91 1991-01-16

Publications (2)

Publication Number Publication Date
CA2057995A1 CA2057995A1 (en) 1992-07-01
CA2057995C true CA2057995C (en) 1995-07-25

Family

ID=33542722

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002057995A Expired - Fee Related CA2057995C (en) 1990-12-30 1991-12-18 Water quality tester

Country Status (4)

Country Link
US (1) US5233860A (en, 2012)
EP (1) EP0493819B1 (en, 2012)
CA (1) CA2057995C (en, 2012)
TW (1) TW211064B (en, 2012)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0651248B1 (en) * 1993-11-02 2001-01-24 Siemens Plc Water quality sensor apparatus
GB2295232B (en) * 1994-11-15 1999-05-05 Boghos Awanes Manook Continuous multi-parameter monitoring of liquids with a novel sensor cleaning and calibration system
DE29607783U1 (de) * 1996-04-30 1996-06-20 Tillich, Dirk, 64367 Mühltal Vorrichtung zur automatisierten Analyse in flüssigen Medien
ATE226321T1 (de) * 1997-04-24 2002-11-15 Daikin Ind Ltd Kammförmiges sensorelement mit elektroden auf den zähnen und kantenanschlüssen auf der gegenüberliegenden seite
US7180591B1 (en) * 1999-06-03 2007-02-20 Micron Technology, Inc Semiconductor processors, sensors, semiconductor processing systems, semiconductor workpiece processing methods, and turbidity monitoring methods
CA2449925C (en) * 2001-06-08 2010-03-09 F. Hoffmann-La Roche Ag Control solution packets and methods for calibrating bodily fluid sampling devices
US6605947B2 (en) * 2001-10-03 2003-08-12 Yi-Chia Liao Cup shape sensible container for detecting liquid property
US6842243B2 (en) * 2001-12-10 2005-01-11 Apprise Technologies, Inc. Turbidity sensor
ES2199087B1 (es) * 2002-07-25 2005-02-16 Universidad Politecnica De Valencia Sistema de control y vigilancia de la calidad del agua.
WO2004038403A1 (en) * 2002-09-19 2004-05-06 Istek Inc. Water quality measuring apparatus and method using image
US7157900B2 (en) * 2004-02-27 2007-01-02 Invensys Systems Inc. Removable breaking calibration connector for toroidal conductivity sensor and method of calibration
GB0522015D0 (en) * 2005-10-28 2005-12-07 Intellitect Water Ltd Improvements in or relating to sensing apparatus
GB0600721D0 (en) * 2006-01-13 2006-02-22 Intellitect Water Ltd Mounting and sealing system for sensors
US7648232B2 (en) * 2006-07-12 2010-01-19 Xerox Corporation Solid ink stick with reliably encoded data
US7837063B2 (en) * 2006-09-07 2010-11-23 Bryan Stoddard Dispensing measuring device
US7891792B2 (en) * 2007-11-06 2011-02-22 Xerox Corporation Solid ink stick with transition indicating region
DE102010010715B4 (de) 2010-03-08 2022-02-17 Winfried Schellbach Wirtschaftliche Kesselanalytik
WO2012000552A1 (de) * 2010-07-01 2012-01-05 Hach Lange Gmbh Wasseranalyse - sensorkartusche mit transportbehälter
US8887556B2 (en) 2011-02-15 2014-11-18 Michael A. Silveri Amperometric sensor system
KR101299678B1 (ko) * 2011-12-01 2013-08-27 한국과학기술연구원 수중센서 하우징 및 이에 사용되는 방오형 수중센서
GB201217350D0 (en) 2012-09-28 2012-11-14 Strathkelvin Instr Ltd Device for monitoring wastewater treatment
US9897570B2 (en) * 2013-08-22 2018-02-20 Horiba Advanced Techno, Co., Ltd. Dissolved oxygen measurement system and method of calibrating dissolved oxygen meter
CN103728427A (zh) * 2013-12-19 2014-04-16 谢虹 一种微型水质检测器
CN105353155A (zh) * 2015-12-08 2016-02-24 张志通 一种新型液体溶氧电子检测仪
US10458969B2 (en) 2016-03-22 2019-10-29 International Business Machines Corporation Dynamic water quality prediction
CN106645032A (zh) * 2016-09-28 2017-05-10 深圳市七善科技有限公司 一种荧光法多参数水质电极
CN107492235A (zh) * 2017-05-09 2017-12-19 安徽环美智能科技有限公司 一种废水、废气集成监测系统

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942792A (en) * 1974-04-18 1976-03-09 Biospherics Incorporated Process and apparatus for measuring dissolved gas
US4330385A (en) * 1980-06-09 1982-05-18 Arthur Technology, Inc. Dissolved oxygen measurement instrument
GB8326659D0 (en) * 1983-10-05 1983-11-09 Surrey University Of Water test kit and turbidity meter
JPS60171448A (ja) * 1984-02-17 1985-09-04 Hitachi Ltd 溶存物質の濃度測定装置
US4779446A (en) * 1985-07-12 1988-10-25 Hudson Oxygen Therapy Sales Company Oxygen monitor
US4766550A (en) * 1985-10-30 1988-08-23 Westinghouse Electric Corp. Automatic on-line chemistry monitoring system
US4689308A (en) * 1986-05-01 1987-08-25 International Biomedics, Inc. Article for preparing a chemical sensor for use
US4914424A (en) * 1987-03-02 1990-04-03 Japan Storage Battery Company, Limited Oxygen concentration monitor using galvanic cell type oxygen sensor
US4887453A (en) * 1988-06-02 1989-12-19 The Babcock & Wilcox Company Method and system for on-line calibration and validation of process instrumentation
DK170900B1 (da) * 1988-07-21 1996-03-04 Radiometer Medical As Fremgangsmåde til at bringe en sensor i kontakt med et kalibreringsfluidum, kalibreringsenhed til brug ved fremgangsmåden samt system omfattende en sensor og en kalibreringsenhed
US5061631A (en) * 1988-10-14 1991-10-29 Fisher Scientific Company Method, apparatus and solution for calibration of partial pressure value
DE3844386A1 (de) * 1988-12-30 1990-07-05 Toshiba Kawasaki Kk Verfahren und anordnung zur bestimmung der konzentration eines elektrolyten
US5124659A (en) * 1989-02-21 1992-06-23 Fisher Scientific Company Measurement of pH and specific ion concentration
JP2581833B2 (ja) * 1989-09-11 1997-02-12 株式会社日立製作所 プラントの運転状態監視システム
US5008616A (en) * 1989-11-09 1991-04-16 I-Stat Corporation Fluidics head for testing chemical and ionic sensors

Also Published As

Publication number Publication date
US5233860A (en) 1993-08-10
EP0493819A1 (en) 1992-07-08
TW211064B (en, 2012) 1993-08-11
CA2057995A1 (en) 1992-07-01
EP0493819B1 (en) 1995-08-16

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Legal Events

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EEER Examination request
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