JPS5021639B1 - - Google Patents

Info

Publication number
JPS5021639B1
JPS5021639B1 JP42068619A JP6861967A JPS5021639B1 JP S5021639 B1 JPS5021639 B1 JP S5021639B1 JP 42068619 A JP42068619 A JP 42068619A JP 6861967 A JP6861967 A JP 6861967A JP S5021639 B1 JPS5021639 B1 JP S5021639B1
Authority
JP
Japan
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.)
Pending
Application number
JP42068619A
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 filed Critical
Publication of JPS5021639B1 publication Critical patent/JPS5021639B1/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/48—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by a capillary element
    • 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
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
    • G01F23/2925—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/06—Control of flow characterised by the use of electric means
    • G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
    • G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
    • G05D7/0676—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on flow sources
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S250/00—Radiant energy
    • Y10S250/90—Optical liquid level sensors
    • Y10S250/901—Optical liquid level sensors with gap between light guide elements, includes open light path preset

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Thermal Sciences (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Measuring Fluid Pressure (AREA)
  • Flow Control (AREA)
JP42068619A 1966-10-27 1967-10-26 Pending JPS5021639B1 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US58993466A 1966-10-27 1966-10-27

Publications (1)

Publication Number Publication Date
JPS5021639B1 true JPS5021639B1 (ja) 1975-07-24

Family

ID=24360176

Family Applications (1)

Application Number Title Priority Date Filing Date
JP42068619A Pending JPS5021639B1 (ja) 1966-10-27 1967-10-26

Country Status (3)

Country Link
US (1) US3458705A (ja)
JP (1) JPS5021639B1 (ja)
GB (1) GB1155443A (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3683196A (en) * 1970-11-27 1972-08-08 Texas Instruments Inc Differential fluid level detector
US3958898A (en) * 1972-03-06 1976-05-25 Waters Associates, Incorporated Pump control systems
US3981619A (en) * 1972-11-09 1976-09-21 Mitter & Co. Control device for controlling the level of a liquid in a container
US3995167A (en) * 1974-09-19 1976-11-30 The J. M. Ney Company Fiberoptic fluid level sensing mechanism
GB2159620A (en) * 1984-05-29 1985-12-04 Norman Barrie Jones Photoelectric pressure transducer without elastic diaphragm
FR2608798B1 (fr) * 1986-12-19 1989-02-24 Air Liquide Procede pour controler le debit d'un gaz dans une vanne et generateur de debit mettant en oeuvre ce procede
DE4028881A1 (de) * 1990-09-12 1992-03-19 Rheinhuette Gmbh & Co Verfahren und einrichtung zum schutz einer foerdereinrichtung von trockenlauf
DE4219270A1 (de) * 1992-06-14 1993-12-16 Gerhard Woerner Vorrichtung zum Umschalten eines Mehrwegeventils
US6942711B2 (en) * 2002-10-22 2005-09-13 Polymer Group, Inc. Hydroentangled filter media with improved static decay and method
CN102252716B (zh) * 2010-05-19 2015-04-29 乐金电子(天津)电器有限公司 毛细管流量的检测装置
CN103558873B (zh) * 2013-10-21 2016-03-30 上海华畅环保设备发展有限公司 适用于间歇外排的高温高压浆料的微小流量连续出料调控方法及装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1955315A (en) * 1934-04-17 photosensitive devics x
US1910202A (en) * 1931-12-31 1933-05-23 Gen Electric Electric regulating system
US2197205A (en) * 1937-12-13 1940-04-16 Holly Sugar Corp Pressure-responsive control means
US2408851A (en) * 1943-10-12 1946-10-08 G & J Weir Ltd Pump
US2588672A (en) * 1946-04-27 1952-03-11 Universal Oil Prod Co Liquid level control
US2701854A (en) * 1950-08-23 1955-02-08 Gerald S Carrick Indicator or regulator
GB703430A (en) * 1951-04-13 1954-02-03 Guy Motors Ltd Improvements in remote liquid level indicators
US2817237A (en) * 1954-04-29 1957-12-24 Leupold & Stevens Instr Inc Manometer system
US2944488A (en) * 1954-08-31 1960-07-12 Curtiss Wright Corp Pump control systems

Also Published As

Publication number Publication date
US3458705A (en) 1969-07-29
GB1155443A (en) 1969-06-18

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