GB603217A - Improvements relating to the indication and control of liquid levels - Google Patents

Improvements relating to the indication and control of liquid levels

Info

Publication number
GB603217A
GB603217A GB914043A GB914043A GB603217A GB 603217 A GB603217 A GB 603217A GB 914043 A GB914043 A GB 914043A GB 914043 A GB914043 A GB 914043A GB 603217 A GB603217 A GB 603217A
Authority
GB
United Kingdom
Prior art keywords
relays
condensers
separate
tube
liquid
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
GB914043A
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.)
ALFRED LUIGI CIANCHI
Fielding and Platt Ltd
Original Assignee
ALFRED LUIGI CIANCHI
Fielding and Platt 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 ALFRED LUIGI CIANCHI, Fielding and Platt Ltd filed Critical ALFRED LUIGI CIANCHI
Priority to GB914043A priority Critical patent/GB603217A/en
Publication of GB603217A publication Critical patent/GB603217A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Automation & Control Theory (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

603,217. Indicating water levels. CIANCHI, A. L., and FIELDING & PLATT, Ltd. June 7, 1943, No. 9140. [Class 40 (i)] [Also in Group XXXVII] The level of a liquid under pressure is indicated with the aid of one or more condensers arranged in a strong side tube to which the liquid which serves as the dielectric is admitted. In one arrangement, Fig. 1 (not shown), separate condensers are arranged at different levels in a number of projections D<SP>1</SP> from the side tube D. The initial position of the condensers may be adjusted by means of a screw H. They may be included in separate tuned circuits associated with relays or may be connected in a common circuit. In another arrangement, Fig. 3, a number of relays L are included in the circuit of the condenser formed by the wall of the side tube and an adjustable tube. These relays are operated by the joint effect of the increase of current due to the increased capacity and of a magnet K floating on the liquid. The change in current in the relay circuit may be separately indicated. The magnet may be in a separate tube.
GB914043A 1943-06-07 1943-06-07 Improvements relating to the indication and control of liquid levels Expired GB603217A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB914043A GB603217A (en) 1943-06-07 1943-06-07 Improvements relating to the indication and control of liquid levels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB914043A GB603217A (en) 1943-06-07 1943-06-07 Improvements relating to the indication and control of liquid levels

Publications (1)

Publication Number Publication Date
GB603217A true GB603217A (en) 1948-06-11

Family

ID=9866137

Family Applications (1)

Application Number Title Priority Date Filing Date
GB914043A Expired GB603217A (en) 1943-06-07 1943-06-07 Improvements relating to the indication and control of liquid levels

Country Status (1)

Country Link
GB (1) GB603217A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1013084B (en) * 1954-09-18 1957-08-01 Wolfgang Luehn Automatic monitoring device for the liquid level in a container
EP0018467A1 (en) * 1979-04-27 1980-11-12 VDO Adolf Schindling AG Device for the electrical measurement of the volume of liquid in a container
US4711117A (en) * 1984-05-16 1987-12-08 Schlumberger Electronics, Inc. Side arm fluid level gauge with spaced-apart sensors for density error compensation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1013084B (en) * 1954-09-18 1957-08-01 Wolfgang Luehn Automatic monitoring device for the liquid level in a container
EP0018467A1 (en) * 1979-04-27 1980-11-12 VDO Adolf Schindling AG Device for the electrical measurement of the volume of liquid in a container
US4711117A (en) * 1984-05-16 1987-12-08 Schlumberger Electronics, Inc. Side arm fluid level gauge with spaced-apart sensors for density error compensation

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