GB1477457A - Method and apparatus for testing the properties of liquids - Google Patents

Method and apparatus for testing the properties of liquids

Info

Publication number
GB1477457A
GB1477457A GB3579773A GB3579773A GB1477457A GB 1477457 A GB1477457 A GB 1477457A GB 3579773 A GB3579773 A GB 3579773A GB 3579773 A GB3579773 A GB 3579773A GB 1477457 A GB1477457 A GB 1477457A
Authority
GB
United Kingdom
Prior art keywords
liquid
probe
duct
gas
strainer
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
Application number
GB3579773A
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.)
Elster Metering Holdings Ltd
Original Assignee
George Kent 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
Application filed by George Kent Ltd filed Critical George Kent Ltd
Priority to GB3579773A priority Critical patent/GB1477457A/en
Priority to DE2435357A priority patent/DE2435357A1/en
Priority to US05/491,511 priority patent/US3962046A/en
Priority to DK398874A priority patent/DK398874A/da
Priority to AU71658/74A priority patent/AU7165874A/en
Priority to FR7426181A priority patent/FR2238931B1/fr
Priority to NL7410117A priority patent/NL7410117A/en
Priority to IT52302/74A priority patent/IT1018733B/en
Priority to BE146984A priority patent/BE818135A/en
Priority to JP49086506A priority patent/JPS50146395A/ja
Publication of GB1477457A publication Critical patent/GB1477457A/en
Expired 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
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

1477457 Electrical testing of liquid GEORGE KENT Ltd 25 July 1974 [27 July 1973 26 Nov 1973] 35797/73 and 54777/73 Heading G1N Apparatus for measuring a property of a liquid comprises a probe 14 for sensing the property mounted in an open ended duct having a vertical portion 16 and at least its lower end immersed in the liquid and means 31 for injecting gas into the duct so that it entrains liquid and causes a flow of liquid past the probe. The probe is mounted in chamber 10 with its sensor part 14 extending into skirt 11 which with strainer 22 forms the lower end of the duct. Skirt 11 and the continuation 18, 17 of the duct are shaped to produce turbulent flow around the probe, thus helping to keep it clean. The vertical part of the duct 16 is connected to valve 21, which comprises elastic tube 40 which can be squashed by gas pressure at 41, and compressed gas inlet 31. The apparatus is immersed in the liquid so that outlet 39 is just above the liquid surface. The entrained gas from 31 produces a flow of liquid from outlet 39 and a corresponding flow in past the probe. Cleaning. To clean the electrode and strainer, valve 21 is closed and the gas supply is continued. The liquid level is forced down past the electrode and cleans it and cleans the strainer. If the sensor measures oxygen in water and the compressed gas is air, the sensor can be calibrated during this cleaning as it is surrounded by the oxygen in air. The chamber 10 may be extended upwards and contain two electric motors and air compressors, one which runs continuously for supply to 31 and the other producing an intermittent supply to the valve.
GB3579773A 1973-07-27 1973-07-27 Method and apparatus for testing the properties of liquids Expired GB1477457A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
GB3579773A GB1477457A (en) 1973-07-27 1973-07-27 Method and apparatus for testing the properties of liquids
DE2435357A DE2435357A1 (en) 1973-07-27 1974-07-23 METHOD AND DEVICE FOR MEASURING PROPERTIES OF A LIQUID WITH A PROPERTY DETECTING CHANGES IN PROPERTIES
US05/491,511 US3962046A (en) 1973-07-27 1974-07-24 Method and apparatus for testing properties of liquids
DK398874A DK398874A (en) 1973-07-27 1974-07-24
AU71658/74A AU7165874A (en) 1973-07-27 1974-07-25 Liquid agitator for measuring probe
FR7426181A FR2238931B1 (en) 1973-07-27 1974-07-26
NL7410117A NL7410117A (en) 1973-07-27 1974-07-26 METHOD AND EQUIPMENT FOR MEASURING A PROPERTY OF A LIQUID.
IT52302/74A IT1018733B (en) 1973-07-27 1974-07-26 DEVICE FOR MEASURING THE OWN TA OF A LIQUID
BE146984A BE818135A (en) 1973-07-27 1974-07-26 METHOD AND APPARATUS FOR CHECKING THE PROPERTIES OF LIQUIDS
JP49086506A JPS50146395A (en) 1973-07-27 1974-07-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3579773A GB1477457A (en) 1973-07-27 1973-07-27 Method and apparatus for testing the properties of liquids

Publications (1)

Publication Number Publication Date
GB1477457A true GB1477457A (en) 1977-06-22

Family

ID=10381644

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3579773A Expired GB1477457A (en) 1973-07-27 1973-07-27 Method and apparatus for testing the properties of liquids

Country Status (2)

Country Link
BE (1) BE818135A (en)
GB (1) GB1477457A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108267342A (en) * 2018-04-20 2018-07-10 南京信息工程大学 A kind of unmanned boat sampling system and sampling method
CN114370901A (en) * 2022-03-22 2022-04-19 四川省郫县豆瓣股份有限公司 High-precision liquid flow measuring probe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108267342A (en) * 2018-04-20 2018-07-10 南京信息工程大学 A kind of unmanned boat sampling system and sampling method
CN114370901A (en) * 2022-03-22 2022-04-19 四川省郫县豆瓣股份有限公司 High-precision liquid flow measuring probe

Also Published As

Publication number Publication date
BE818135A (en) 1974-11-18

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414B Case decided by the comptroller ** grants allowed (sect. 14/1949)
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930725