GB8711173D0 - Sensor - Google Patents

Sensor

Info

Publication number
GB8711173D0
GB8711173D0 GB878711173A GB8711173A GB8711173D0 GB 8711173 D0 GB8711173 D0 GB 8711173D0 GB 878711173 A GB878711173 A GB 878711173A GB 8711173 A GB8711173 A GB 8711173A GB 8711173 D0 GB8711173 D0 GB 8711173D0
Authority
GB
United Kingdom
Prior art keywords
sensor
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.)
Granted
Application number
GB878711173A
Other versions
GB2191293A (en
GB2191293B (en
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.)
Terumo BCT Inc
Original Assignee
Cobe Laboratories Inc
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 US06/869,087 external-priority patent/US4825168A/en
Priority claimed from US06/869,132 external-priority patent/US4740755A/en
Application filed by Cobe Laboratories Inc filed Critical Cobe Laboratories Inc
Publication of GB8711173D0 publication Critical patent/GB8711173D0/en
Publication of GB2191293A publication Critical patent/GB2191293A/en
Application granted granted Critical
Publication of GB2191293B publication Critical patent/GB2191293B/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
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/023—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance where the material is placed in the field of a coil
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
    • A61M1/1601—Control or regulation
    • A61M1/1603—Regulation parameters
    • A61M1/1605—Physical characteristics of the dialysate fluid
    • A61M1/1607—Physical characteristics of the dialysate fluid before use, i.e. upstream of dialyser
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/22—Measuring resistance of fluids
GB8711173A 1986-05-30 1987-05-12 Remote conductivity sensor Expired - Lifetime GB2191293B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/869,087 US4825168A (en) 1986-05-30 1986-05-30 Remote conductivity sensor using square wave excitation
US06/869,132 US4740755A (en) 1986-05-30 1986-05-30 Remote conductivity sensor having transformer coupling in fluid flow path

Publications (3)

Publication Number Publication Date
GB8711173D0 true GB8711173D0 (en) 1987-06-17
GB2191293A GB2191293A (en) 1987-12-09
GB2191293B GB2191293B (en) 1990-10-17

Family

ID=27128091

Family Applications (2)

Application Number Title Priority Date Filing Date
GB8711173A Expired - Lifetime GB2191293B (en) 1986-05-30 1987-05-12 Remote conductivity sensor
GB8928473A Expired - Lifetime GB2226141B (en) 1986-05-30 1989-12-18 Remote conductivity sensor

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB8928473A Expired - Lifetime GB2226141B (en) 1986-05-30 1989-12-18 Remote conductivity sensor

Country Status (4)

Country Link
JP (1) JPH076947B2 (en)
DE (1) DE3718111A1 (en)
FR (1) FR2599515B1 (en)
GB (2) GB2191293B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5612622A (en) * 1994-12-28 1997-03-18 Optical Solutions, Inc. Apparatus for identifying particular entities in a liquid using electrical conductivity characteristics
DE19823836C2 (en) * 1998-05-28 2000-05-04 Fresenius Medical Care De Gmbh Device and method for non-contact measurement of the conductivity of a liquid in a flow channel
JP2001147218A (en) * 1999-11-22 2001-05-29 T & C Technical:Kk Electrodeless sensor
DE102005029047B4 (en) 2005-06-21 2007-06-21 Miele & Cie. Kg Sensor device and method for producing a sensor device
JP2007327901A (en) * 2006-06-09 2007-12-20 Invensys Systems Inc Nonmetal flowing-water type electroless conductive sensor, and leak detector
DE102011002766A1 (en) 2011-01-17 2012-07-19 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Measuring arrangement for determining an electrical conductivity of a measuring liquid
JP6423579B2 (en) * 2013-02-04 2018-11-14 株式会社 堀場アドバンスドテクノ Conductivity meter and method for correcting the measured value

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE633100A (en) * 1946-06-11
GB695058A (en) * 1951-05-03 1953-08-05 Fielden Electronics Ltd Improvements relating to the measurement of conductivity of liquids
GB831692A (en) * 1956-11-15 1960-03-30 Wayne Kerr Lab Ltd Improvements in or relating to the measurement of the electrical conductance of liquids
DE1129232B (en) * 1960-02-12 1962-05-10 Siemens Ag Device for the electrodeless measurement of the electrical conductivity of fluids flowing in pipelines
US3404336A (en) * 1965-07-26 1968-10-01 Beckman Instruments Inc Apparatus for measuring electrical conductivity of a fluid
US3566841A (en) * 1969-07-11 1971-03-02 Research Corp Milk monitor and system
US3603873A (en) * 1970-01-14 1971-09-07 Nus Corp Conductivity sensor
DE2108771C3 (en) * 1970-02-27 1981-11-12 Smiths Industries Ltd., London Device for detecting particles as they pass along a continuous path
GB1395493A (en) * 1971-06-16 1975-05-29 Secr Defence Apparatus for controlling the conductivity of an electro lyte
FR2266891B1 (en) * 1974-04-05 1978-11-17 Citroen Sa
JPS5236990U (en) * 1975-09-08 1977-03-16
NZ180087A (en) * 1976-02-23 1978-11-13 Ahi Operations Ltd Mastitis detector: conductivity bridge with comparator outputs
US4138639A (en) * 1977-07-14 1979-02-06 Hutchins Thomas B Fluid conductivity measurement
DE2822943A1 (en) * 1978-05-26 1979-11-29 Tesch Gmbh & Co Kg Probe which measures electrical conductivity of liq. - uses coils to generate and detect induced voltage in liq.
JPS60190873A (en) * 1984-03-10 1985-09-28 Japan Organo Co Ltd Electromagnetic type conductivity meter

Also Published As

Publication number Publication date
FR2599515B1 (en) 1990-04-06
FR2599515A1 (en) 1987-12-04
DE3718111A1 (en) 1987-12-03
DE3718111C2 (en) 1989-06-15
GB2226141B (en) 1990-10-17
GB8928473D0 (en) 1990-02-21
GB2226141A (en) 1990-06-20
JPH076947B2 (en) 1995-01-30
GB2191293A (en) 1987-12-09
JPS631961A (en) 1988-01-06
GB2191293B (en) 1990-10-17

Similar Documents

Publication Publication Date Title
GB8717919D0 (en) Sensor
GB8601176D0 (en) Sensing
GB8615749D0 (en) Shape sensor
GB8709465D0 (en) Sensor
GB8701248D0 (en) Sensor
GB8700648D0 (en) Sensor
GB8622788D0 (en) Sensor
GB2198844B (en) Sensor
GB2213274B (en) Auto-toner sensor
GB2190262B (en) Sensor
GB8607367D0 (en) Position sensor
GB2191589B (en) Sensor
GB8712503D0 (en) Sensor
GB8711173D0 (en) Sensor
GB8723359D0 (en) Sensor
GB2192710B (en) Sensor
GB8619890D0 (en) Sensor
GB2197486B (en) Sensor
GB8602543D0 (en) Sensor
GB8614504D0 (en) Displacement sensor
GB8602544D0 (en) Sensor
GB8624371D0 (en) Force sensor
GB2210454B (en) Sensor
BG49738A1 (en) Ophthalmographic sensor
GB8716543D0 (en) Sensing

Legal Events

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

Effective date: 20050512