GB829741A - A method and device for measuring small distances, especially the liquid level in liquid tanks - Google Patents

A method and device for measuring small distances, especially the liquid level in liquid tanks

Info

Publication number
GB829741A
GB829741A GB35976/56A GB3597656A GB829741A GB 829741 A GB829741 A GB 829741A GB 35976/56 A GB35976/56 A GB 35976/56A GB 3597656 A GB3597656 A GB 3597656A GB 829741 A GB829741 A GB 829741A
Authority
GB
United Kingdom
Prior art keywords
liquid
small distances
measuring small
liquid level
tanks
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
GB35976/56A
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.)
Van Der Heem BV
Original Assignee
Van Der Heem BV
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 Van Der Heem BV filed Critical Van Der Heem BV
Publication of GB829741A publication Critical patent/GB829741A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01F23/28—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 the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2962—Measuring transit time of reflected waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52004—Means for monitoring or calibrating

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
GB35976/56A 1955-12-23 1956-11-23 A method and device for measuring small distances, especially the liquid level in liquid tanks Expired GB829741A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL829741X 1955-12-23

Publications (1)

Publication Number Publication Date
GB829741A true GB829741A (en) 1960-03-09

Family

ID=19841164

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35976/56A Expired GB829741A (en) 1955-12-23 1956-11-23 A method and device for measuring small distances, especially the liquid level in liquid tanks

Country Status (1)

Country Link
GB (1) GB829741A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3163843A (en) * 1961-10-02 1964-12-29 North American Aviation Inc Liquid level indicator
US3237150A (en) * 1961-02-24 1966-02-22 Curtiss Wright Corp Ultrasonic position indicator system
US3339403A (en) * 1963-09-03 1967-09-05 Continental Oil Co Non-destructive thickness measuring device
US4535628A (en) * 1981-05-22 1985-08-20 Hope Bjoern R Apparatus for level measurements
WO1990012292A1 (en) * 1989-04-10 1990-10-18 Saab Marine Electronics Aktiebolag Device for level gauging with microwaves

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3237150A (en) * 1961-02-24 1966-02-22 Curtiss Wright Corp Ultrasonic position indicator system
US3163843A (en) * 1961-10-02 1964-12-29 North American Aviation Inc Liquid level indicator
US3339403A (en) * 1963-09-03 1967-09-05 Continental Oil Co Non-destructive thickness measuring device
US4535628A (en) * 1981-05-22 1985-08-20 Hope Bjoern R Apparatus for level measurements
WO1990012292A1 (en) * 1989-04-10 1990-10-18 Saab Marine Electronics Aktiebolag Device for level gauging with microwaves

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