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GB1462684A - Water quality determination apparatus - Google Patents

Water quality determination apparatus

Info

Publication number
GB1462684A
GB1462684A GB367474A GB367474A GB1462684A GB 1462684 A GB1462684 A GB 1462684A GB 367474 A GB367474 A GB 367474A GB 367474 A GB367474 A GB 367474A GB 1462684 A GB1462684 A GB 1462684A
Authority
GB
United Kingdom
Prior art keywords
sensor
liquid
housing
flow
outlet
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 - Lifetime
Application number
GB367474A
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.)
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Corp
Meidensha Electric Manufacturing Co 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 JP1176873A external-priority patent/JPS49101097A/ja
Priority claimed from JP1273973U external-priority patent/JPS5339517Y2/ja
Priority claimed from JP2591373A external-priority patent/JPS5329118B2/ja
Priority claimed from JP2591473A external-priority patent/JPS49115390A/ja
Priority claimed from JP2780773A external-priority patent/JPS5325517B2/ja
Priority claimed from JP2780873A external-priority patent/JPS5325518B2/ja
Priority claimed from JP2780973A external-priority patent/JPS5325519B2/ja
Priority claimed from JP3436873A external-priority patent/JPS5340479B2/ja
Application filed by Meidensha Corp, Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Corp
Publication of GB1462684A publication Critical patent/GB1462684A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/4163—Systems checking the operation of, or calibrating, the measuring apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14—Suction devices, e.g. pumps; Ejector devices
    • G01N2001/1445—Overpressure, pressurisation at sampling point
    • G01N2001/1463—Injector; Air-lift
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)

Abstract

1462684 Determining matter in liquid MEIDENSHA KK 25 Jan 1974 [29 Jan 1973 (2) 5 March 1973 (2) 9 March 1973(3) 26 March 1973] 3674/74 Heading G1N Apparatus for determining the amount of matter in a liquid comprises a housing with inlet and outlet, a sensor in the housing aligned so that flow from inlet to outlet is parallel to the sensing face, the housing being constructed for immersion in the liquid being measured, means for introducing a medium between sensor and outlet to cause fluid-flow from inlet to outlet and means for generating pressure waves in the liquid in the housing to scour adhered matter from the sensor. The flow is preferably at a rate which produces turbulence at the sensor. Provision for flushing the sensor with clean liquid and calibrating for dissolved oxygen using air may also be provided. The sensor may measure pH, dissolved oxygen, redox potential or may be ion selective. It is preferably of the membrane type and intended for use in contaminated water. The medium causing fluid-flow may be introduced as a bubble pump, a liquid pump, or a water jet. Turbulence which helps to keep the sensor clean, is generated by narrowing the fluid path adjacent the sensor. When the liquid is flowing, the housing may be maintained parallel to the flow by a vane. Pressure waves may be generated by compressing a plastics tube in a gas, a liquid flow line to the housing or by reciprocatingly changing the volume of the housing available to the fluid. The sensor may be supplied alternately with contaminated and pure water, numerous arrangements being described. This may be supplemented by subjecting an oxygen sensor to air while adjusting the sensor output to a desired reference to compensate for ageing or contamination. In other embodiments the sensor may be rotated in the liquid with its active surface parallel thereto.
GB367474A 1973-01-29 1974-01-25 Water quality determination apparatus Expired - Lifetime GB1462684A (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP1176873A JPS49101097A (en) 1973-01-29 1973-01-29
JP1273973U JPS5339517Y2 (en) 1973-01-29 1973-01-29
JP2591373A JPS5329118B2 (en) 1973-03-05 1973-03-05
JP2591473A JPS49115390A (en) 1973-03-05 1973-03-05
JP2780773A JPS5325517B2 (en) 1973-03-09 1973-03-09
JP2780873A JPS5325518B2 (en) 1973-03-09 1973-03-09
JP2780973A JPS5325519B2 (en) 1973-03-09 1973-03-09
JP3436873A JPS5340479B2 (en) 1973-03-26 1973-03-26

Publications (1)

Publication Number Publication Date
GB1462684A true GB1462684A (en) 1977-01-26

Family

ID=27571704

Family Applications (1)

Application Number Title Priority Date Filing Date
GB367474A Expired - Lifetime GB1462684A (en) 1973-01-29 1974-01-25 Water quality determination apparatus

Country Status (3)

Country Link
DE (1) DE2462281A1 (en)
FR (1) FR2215620B1 (en)
GB (1) GB1462684A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2269674A (en) * 1992-08-13 1994-02-16 Lawrence Alexander Campbell Electrochemical membrane sensor incorporating cleaning/agitating device
CN110672371A (en) * 2019-11-02 2020-01-10 浙江华圭环境检测有限公司 Unmanned aerial vehicle environment measuring device
CN111855584A (en) * 2020-07-30 2020-10-30 剑科云智(深圳)科技有限公司 Sensor system for wastewater determination
CN113514364A (en) * 2021-05-28 2021-10-19 王芹 Real-time detection device for monitoring sewage concentration of sewage pipeline
CN118225996A (en) * 2024-05-24 2024-06-21 江西省水产科学研究所(江西省鄱阳湖渔业研究中心、江西省渔业资源生态环境监测中心) Water quality detection device for raising soft-shelled turtles in paddy field
CN118501006A (en) * 2024-07-16 2024-08-16 中南大学 Hydraulic oil particle contaminant detection device and method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4713772A (en) * 1985-11-18 1987-12-15 Westinghouse Electric Corp. Automatic on-line chemistry monitoring system having improved calibration unit
DE3741454C2 (en) * 1987-12-08 1995-11-02 Draegerwerk Ag Calibration valve for gas sensors

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL299204A (en) * 1962-10-13
DE1598819A1 (en) * 1966-10-10 1971-01-07 Mez Dipl Ing Erich Rudolf Oswa Device to ensure an optimal, constant flow speed on measuring electrodes while at the same time keeping them automatically clean

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2269674A (en) * 1992-08-13 1994-02-16 Lawrence Alexander Campbell Electrochemical membrane sensor incorporating cleaning/agitating device
US5384029A (en) * 1992-08-13 1995-01-24 Campbell; Lawrence A. Electrochemical membrane sensor
GB2269674B (en) * 1992-08-13 1995-10-11 Lawrence Alexander Campbell Electrochemical membrane sensor
CN110672371A (en) * 2019-11-02 2020-01-10 浙江华圭环境检测有限公司 Unmanned aerial vehicle environment measuring device
CN110672371B (en) * 2019-11-02 2022-06-28 浙江华圭环境检测有限公司 Unmanned aerial vehicle environment detecting device
CN111855584A (en) * 2020-07-30 2020-10-30 剑科云智(深圳)科技有限公司 Sensor system for wastewater determination
CN111855584B (en) * 2020-07-30 2023-07-11 剑科云智(深圳)科技有限公司 Sensor system for measuring waste water
CN113514364A (en) * 2021-05-28 2021-10-19 王芹 Real-time detection device for monitoring sewage concentration of sewage pipeline
CN118225996A (en) * 2024-05-24 2024-06-21 江西省水产科学研究所(江西省鄱阳湖渔业研究中心、江西省渔业资源生态环境监测中心) Water quality detection device for raising soft-shelled turtles in paddy field
CN118501006A (en) * 2024-07-16 2024-08-16 中南大学 Hydraulic oil particle contaminant detection device and method

Also Published As

Publication number Publication date
DE2404190B2 (en) 1977-06-02
DE2462281A1 (en) 1976-09-30
FR2215620A1 (en) 1974-08-23
DE2462281B2 (en) 1979-08-16
DE2404190A1 (en) 1974-08-22
DE2462281C3 (en) 1980-04-30
FR2215620B1 (en) 1978-03-31

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee