GB844878A - Improvements in apparatus for ascertaining the level of a surface of a body of liquid - Google Patents

Improvements in apparatus for ascertaining the level of a surface of a body of liquid

Info

Publication number
GB844878A
GB844878A GB2516557A GB2516557A GB844878A GB 844878 A GB844878 A GB 844878A GB 2516557 A GB2516557 A GB 2516557A GB 2516557 A GB2516557 A GB 2516557A GB 844878 A GB844878 A GB 844878A
Authority
GB
United Kingdom
Prior art keywords
receiver
aug
acoustic
group
transmitter
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
GB2516557A
Inventor
Bernard Augustine Worswick
John Dennis Attwell
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.)
Danks Holding Ltd
Original Assignee
Bailey Meters and Controls 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 Bailey Meters and Controls Ltd filed Critical Bailey Meters and Controls Ltd
Priority to GB2516557A priority Critical patent/GB844878A/en
Publication of GB844878A publication Critical patent/GB844878A/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
    • G01F23/2961—Acoustic waves for discrete levels
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)

Abstract

844,878. Acoustic delay lines. BAILEY METERS & CONTROLS Ltd. Aug. 8, 1958 [Aug. 9, 1957], No. 25165/57. Drawings to Specification. Class 40(8). [Also in Group XL(c)] An acoustic variable-delay line used in an ultrasonic pulse-echo system (see Group XL(c) ) consists of a spiral of nickel wire coupled at one end to a fixed magnetostrictive transmitter coil and traversed throughout its length by a receiver coil. In another arrangement a transmitter and receiver are mounted on respective relatively movable spaced plates so that a transmitted pulse is reflected back and forth several times between them before reaching the receiver.
GB2516557A 1957-08-09 1957-08-09 Improvements in apparatus for ascertaining the level of a surface of a body of liquid Expired GB844878A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2516557A GB844878A (en) 1957-08-09 1957-08-09 Improvements in apparatus for ascertaining the level of a surface of a body of liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2516557A GB844878A (en) 1957-08-09 1957-08-09 Improvements in apparatus for ascertaining the level of a surface of a body of liquid

Publications (1)

Publication Number Publication Date
GB844878A true GB844878A (en) 1960-08-17

Family

ID=10223278

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2516557A Expired GB844878A (en) 1957-08-09 1957-08-09 Improvements in apparatus for ascertaining the level of a surface of a body of liquid

Country Status (1)

Country Link
GB (1) GB844878A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212338A (en) * 1962-03-29 1965-10-19 James B O'maley Digital manometer
US4787407A (en) * 1986-08-28 1988-11-29 Shell Internationale Research Maatschappij B.V. Method and apparatus for the detection of the fluid level in a tank being filled
WO2006128265A1 (en) * 2005-06-01 2006-12-07 Junko Hiraoka Electronic gas relay

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212338A (en) * 1962-03-29 1965-10-19 James B O'maley Digital manometer
US4787407A (en) * 1986-08-28 1988-11-29 Shell Internationale Research Maatschappij B.V. Method and apparatus for the detection of the fluid level in a tank being filled
WO2006128265A1 (en) * 2005-06-01 2006-12-07 Junko Hiraoka Electronic gas relay

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