ES2157034T3 - Aparato para la transferencia de un liquido con funcion sensora del nivel de liquido. - Google Patents

Aparato para la transferencia de un liquido con funcion sensora del nivel de liquido.

Info

Publication number
ES2157034T3
ES2157034T3 ES97111437T ES97111437T ES2157034T3 ES 2157034 T3 ES2157034 T3 ES 2157034T3 ES 97111437 T ES97111437 T ES 97111437T ES 97111437 T ES97111437 T ES 97111437T ES 2157034 T3 ES2157034 T3 ES 2157034T3
Authority
ES
Spain
Prior art keywords
liquid
liquid level
probe
inner tube
sensing electrode
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
ES97111437T
Other languages
English (en)
Inventor
Shigeki Matsubara
Kazuhiro Tanaka
Akira Inagaki
Bernd Roesicke
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.)
Roche Diagnostics GmbH
Original Assignee
Roche Diagnostics GmbH
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 Roche Diagnostics GmbH filed Critical Roche Diagnostics GmbH
Application granted granted Critical
Publication of ES2157034T3 publication Critical patent/ES2157034T3/es
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
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
    • G01N35/1009—Characterised by arrangements for controlling the aspiration or dispense of liquids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/268—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors mounting arrangements of probes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
    • G01N35/1009—Characterised by arrangements for controlling the aspiration or dispense of liquids
    • G01N2035/1025—Fluid level sensing
    • 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
    • Y10T436/11—Automated chemical analysis
    • Y10T436/119163—Automated chemical analysis with aspirator of claimed structure

Landscapes

  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Analytical Chemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

LA INVENCION SE REFIERE A UN APARATO PARA TRANSFERIR UN LIQUIDO CAPAZ DE REALIZAR EXACTAMENTE LA DETECCION DEL NIVEL DEL LIQUIDO UTILIZANDO UNA SONDA DE EFECTO PIPETA INCLUSO EN EL CASO DE UNA ALTA CONDUCTIVIDAD ELECTRICA DE UN FLUIDO QUE SE MUEVE EN UN CONDUCTO DE FLUJO QUE TRANSMITE LA OPERACION DE ASPIRACION Y DE DESCARGA DE UNA JERINGA (107) A LA SONDA DE EFECTO PIPETA (100. 400, 500, 600). LA SONDA TIENE UN ELECTRODO DE DETECCION DEL NIVEL DEL LIQUIDO (103, 401, 501, 601) Y UN TUBO INTERNO (102, 402, 502, 602). EL ELECTRODO DE DETECCION DEL NIVEL DEL LIQUIDO CAPAZ DE ESTAR EN CONTACTO CON UN LIQUIDO A SER ASPIRADO ESTA ELECTRICAMENTE SEPARADO DEL TUBO INTERNO LLENO CON EL FLUIDO EN MOVIMIENTO, Y AMBOS ESTAN AISLADOS POR UN MIEMBRO DE AISLAMIENTO ELECTRICO (104B, 403, 503) ENTRE ELLOS. UN CONTENEDOR (111) QUE CONTIENE EL LIQUIDO A SER ASPIRADO ESTA SUJETO MEDIANTE UN DISPOSITIVO DE SUJECION DEL CONTENEDOR (112) Y EL NIVEL DEL LIQUIDO PUEDE DETECTARSE MEDIANTE EL CAMINO EN LA CAPACITANCIA ELECTROSTATICA ENTRE EL DISPOSITIVO DE SUJECION DEL CONTENEDOR Y EL ELECTRODO DE DETECCION DEL NIVEL DEL LIQUIDO DE LA SONDA CUANDO LA SONDA SE MUEVE HACIA ABAJO. DURANTE LA ASPIRACION DEL LIQUIDO, EL TUBO INTERNO NO SE PONE EN CONTACTO CON EL LIQUIDO. EL TUBO INTERNO Y EL DISPOSITIVO DE SUJECION DEL CONTENEDOR ESTAN PUESTOS A TIERRA.
ES97111437T 1996-07-19 1997-07-07 Aparato para la transferencia de un liquido con funcion sensora del nivel de liquido. Expired - Lifetime ES2157034T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19055196A JP3158054B2 (ja) 1996-07-19 1996-07-19 液体採取装置

Publications (1)

Publication Number Publication Date
ES2157034T3 true ES2157034T3 (es) 2001-08-01

Family

ID=16259966

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97111437T Expired - Lifetime ES2157034T3 (es) 1996-07-19 1997-07-07 Aparato para la transferencia de un liquido con funcion sensora del nivel de liquido.

Country Status (6)

Country Link
US (1) US5855851A (es)
EP (1) EP0819942B1 (es)
JP (1) JP3158054B2 (es)
AT (1) ATE200582T1 (es)
DE (1) DE69704522T2 (es)
ES (1) ES2157034T3 (es)

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Also Published As

Publication number Publication date
US5855851A (en) 1999-01-05
EP0819942A3 (en) 1998-09-23
JP3158054B2 (ja) 2001-04-23
ATE200582T1 (de) 2001-04-15
DE69704522T2 (de) 2001-10-25
EP0819942A2 (en) 1998-01-21
DE69704522D1 (de) 2001-05-17
JPH1038899A (ja) 1998-02-13
EP0819942B1 (en) 2001-04-11

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