GB1524805A - Apparatus for measuring the spacing of the surface of an electrically conductive medium from an observation point disposed above this surface - Google Patents

Apparatus for measuring the spacing of the surface of an electrically conductive medium from an observation point disposed above this surface

Info

Publication number
GB1524805A
GB1524805A GB2235777A GB2235777A GB1524805A GB 1524805 A GB1524805 A GB 1524805A GB 2235777 A GB2235777 A GB 2235777A GB 2235777 A GB2235777 A GB 2235777A GB 1524805 A GB1524805 A GB 1524805A
Authority
GB
United Kingdom
Prior art keywords
measuring
contact
temperature
liquid medium
spacing
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
GB2235777A
Other languages
English (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.)
A Ott GmbH
Original Assignee
A Ott 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 A Ott GmbH filed Critical A Ott GmbH
Publication of GB1524805A publication Critical patent/GB1524805A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/04—Measuring depth or liquid level
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/06—Measuring temperature or pressure
    • 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
    • G01F23/24—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 resistance of resistors due to contact with conductor fluid
    • G01F23/241—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 resistance of resistors due to contact with conductor fluid for discrete levels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
    • G01K7/20—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer in a specially-adapted circuit, e.g. bridge circuit
    • G01K7/206—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer in a specially-adapted circuit, e.g. bridge circuit in a potentiometer circuit

Landscapes

  • Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Thermal Sciences (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
GB2235777A 1976-05-28 1977-05-26 Apparatus for measuring the spacing of the surface of an electrically conductive medium from an observation point disposed above this surface Expired GB1524805A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762624009 DE2624009C3 (de) 1976-05-28 1976-05-28 Vorrichtung zum Messen des Abstandes der Oberfläche eines elektrisch leitfähigen Mediums von einem oberhalb dieser Oberfläche angeordneten Beobachtungspunkt

Publications (1)

Publication Number Publication Date
GB1524805A true GB1524805A (en) 1978-09-13

Family

ID=5979268

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2235777A Expired GB1524805A (en) 1976-05-28 1977-05-26 Apparatus for measuring the spacing of the surface of an electrically conductive medium from an observation point disposed above this surface

Country Status (4)

Country Link
CH (1) CH614526A5 (de)
DE (1) DE2624009C3 (de)
FR (1) FR2353048A1 (de)
GB (1) GB1524805A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2266956A (en) * 1992-05-13 1993-11-17 Spirax Sarco Ltd Sensor unit for temperature and conductivity
CN106092252A (zh) * 2016-08-02 2016-11-09 清华大学 一种实验用高精度数字化自动水位测试系统
CN112816024A (zh) * 2021-01-04 2021-05-18 中国地质科学院水文地质环境地质研究所 一种地下水位测量系统及方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110207755B (zh) * 2019-06-24 2021-02-09 中国农业科学院草原研究所 一种生态水文监测装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2266956A (en) * 1992-05-13 1993-11-17 Spirax Sarco Ltd Sensor unit for temperature and conductivity
GB2266956B (en) * 1992-05-13 1995-10-25 Spirax Sarco Ltd Sensor Unit
CN106092252A (zh) * 2016-08-02 2016-11-09 清华大学 一种实验用高精度数字化自动水位测试系统
CN112816024A (zh) * 2021-01-04 2021-05-18 中国地质科学院水文地质环境地质研究所 一种地下水位测量系统及方法

Also Published As

Publication number Publication date
DE2624009C3 (de) 1979-04-19
FR2353048A1 (fr) 1977-12-23
CH614526A5 (en) 1979-11-30
DE2624009B2 (de) 1978-08-17
DE2624009A1 (de) 1977-12-08
FR2353048B3 (de) 1980-07-04

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Legal Events

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