WO1998046984A3 - Methods and systems for sensing water in liquids - Google Patents

Methods and systems for sensing water in liquids Download PDF

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Publication number
WO1998046984A3
WO1998046984A3 PCT/US1998/007460 US9807460W WO9846984A3 WO 1998046984 A3 WO1998046984 A3 WO 1998046984A3 US 9807460 W US9807460 W US 9807460W WO 9846984 A3 WO9846984 A3 WO 9846984A3
Authority
WO
WIPO (PCT)
Prior art keywords
water content
water
value
another aspect
liquid
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
Application number
PCT/US1998/007460
Other languages
French (fr)
Other versions
WO1998046984A2 (en
Inventor
George A Altemose
Leonard E Bensch
John M Gedde
Douglas R Dolph
Charles P Lipari
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.)
Pall Corp
Original Assignee
Pall 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 Pall Corp filed Critical Pall Corp
Priority to CA002286167A priority Critical patent/CA2286167A1/en
Priority to JP54419598A priority patent/JP2002514303A/en
Priority to EP98918185A priority patent/EP0975955A2/en
Publication of WO1998046984A2 publication Critical patent/WO1998046984A2/en
Publication of WO1998046984A3 publication Critical patent/WO1998046984A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • G01N33/26—Oils; Viscous liquids; Paints; Inks
    • G01N33/28—Oils, i.e. hydrocarbon liquids
    • G01N33/2835—Specific substances contained in the oils or fuels
    • G01N33/2847—Water in oils

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Biochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Water Treatment By Sorption (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

The present invention provides a water sensing system for sensing the water content of a liquid and communicating water content information to an operator. Communicating water content information may include processing the sensed water content value and comparing the value to one or more threshold values to qualify the sensed value. According to another aspect, the water sensor includes isolated 4-20 mA interface outputs for use with external devices such as programmable logic controllers. According to another aspect, the present invention provides a water sensing system which senses a relative water content value and converts the relative water content value to an absolute water content value. According to another aspect, the present invention includes methods and circuitry for calibrating a water sensing system. According to yet another aspect, the present invention provides a liquid purification system to sense the water content of a liquid and remove water from the liquid using a purifier.
PCT/US1998/007460 1997-04-14 1998-04-14 Methods and systems for sensing water in liquids Ceased WO1998046984A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002286167A CA2286167A1 (en) 1997-04-14 1998-04-14 Methods and systems for sensing water in liquids
JP54419598A JP2002514303A (en) 1997-04-14 1998-04-14 Method and system for detecting water in a liquid
EP98918185A EP0975955A2 (en) 1997-04-14 1998-04-14 Methods and systems for sensing water in liquids

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US4356697P 1997-04-14 1997-04-14
US60/043,566 1997-04-14
US6005897P 1997-09-25 1997-09-25
US60/060,058 1997-09-25
US7431598P 1998-02-11 1998-02-11
US60/074,315 1998-02-11

Publications (2)

Publication Number Publication Date
WO1998046984A2 WO1998046984A2 (en) 1998-10-22
WO1998046984A3 true WO1998046984A3 (en) 1999-02-11

Family

ID=27366353

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/007460 Ceased WO1998046984A2 (en) 1997-04-14 1998-04-14 Methods and systems for sensing water in liquids

Country Status (4)

Country Link
EP (1) EP0975955A2 (en)
JP (1) JP2002514303A (en)
CA (1) CA2286167A1 (en)
WO (1) WO1998046984A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11433868B2 (en) * 2018-06-29 2022-09-06 Volvo Car Corporation System and method for determining water content in brake fluid

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI110287B (en) * 1999-06-17 2002-12-31 Vaisala Oyj Method and apparatus for measuring the water content of a liquid
AU7578800A (en) * 1999-09-17 2001-04-17 Pall Corporation Methods and systems for counting particles and sensing water
JP2004077378A (en) * 2002-08-21 2004-03-11 Somakkusu Kk Apparatus for measuring degradation of electrolytic cleaning liquid and method for evaluating degree of degradation of electrolytic cleaning liquid using the same
RU2282658C1 (en) * 2005-01-11 2006-08-27 Открытое акционерное общество "Татнефть" им. В.Д. Шашина Method of determining readiness of crude oil emulsions for separation
JP5477804B2 (en) * 2009-04-03 2014-04-23 株式会社タニタ Backlight device and backlight drive device
DE102010048950A1 (en) 2010-10-19 2012-04-19 Airbus Operations Gmbh Diagnostic system and diagnostic procedure, housing component of a lubricant reservoir
JP6093072B1 (en) * 2016-06-10 2017-03-08 一般社団法人日本海事検定協会 Moisture meter
US10544963B2 (en) 2016-06-10 2020-01-28 Fluid Handling Llc Field configurable low water cut-offs
EP3587203B1 (en) * 2018-06-29 2021-08-11 Volvo Car Corporation A method and a system for estimating the water content of brake fluid in a brake system
CN115598327B (en) * 2022-09-30 2026-05-05 上海置信电气有限公司 A method and apparatus for predicting trace water content in transformer oil based on an improved TRANSFORMER

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4504790A (en) * 1981-10-05 1985-03-12 The Foxboro Company Apparatus and method for determining the water content of a water-containing mixture
EP0141636A1 (en) * 1983-11-04 1985-05-15 Anderson Strathclyde Plc Detection of water in oil
DE3816315A1 (en) * 1988-05-13 1989-12-21 Kieninger & Obergfell Device for monitoring the hydraulic fluid in a brake system, especially a motor-vehicle brake system
EP0646785A1 (en) * 1993-10-01 1995-04-05 Lve Verfahrenselektronik Gmbh Method and device for continuously measuring the amount of water in a fluid

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4504790A (en) * 1981-10-05 1985-03-12 The Foxboro Company Apparatus and method for determining the water content of a water-containing mixture
EP0141636A1 (en) * 1983-11-04 1985-05-15 Anderson Strathclyde Plc Detection of water in oil
DE3816315A1 (en) * 1988-05-13 1989-12-21 Kieninger & Obergfell Device for monitoring the hydraulic fluid in a brake system, especially a motor-vehicle brake system
EP0646785A1 (en) * 1993-10-01 1995-04-05 Lve Verfahrenselektronik Gmbh Method and device for continuously measuring the amount of water in a fluid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11433868B2 (en) * 2018-06-29 2022-09-06 Volvo Car Corporation System and method for determining water content in brake fluid

Also Published As

Publication number Publication date
CA2286167A1 (en) 1998-10-22
JP2002514303A (en) 2002-05-14
WO1998046984A2 (en) 1998-10-22
EP0975955A2 (en) 2000-02-02

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