JPH0467614B2 - - Google Patents

Info

Publication number
JPH0467614B2
JPH0467614B2 JP59128351A JP12835184A JPH0467614B2 JP H0467614 B2 JPH0467614 B2 JP H0467614B2 JP 59128351 A JP59128351 A JP 59128351A JP 12835184 A JP12835184 A JP 12835184A JP H0467614 B2 JPH0467614 B2 JP H0467614B2
Authority
JP
Japan
Prior art keywords
transmitter
receiver
liquid
liquid level
wave
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 - Lifetime
Application number
JP59128351A
Other languages
English (en)
Japanese (ja)
Other versions
JPS617422A (ja
Inventor
Hideo Sofue
Toshiji Ito
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.)
Niterra Co Ltd
Original Assignee
NGK Spark Plug Co 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 NGK Spark Plug Co Ltd filed Critical NGK Spark Plug Co Ltd
Priority to JP59128351A priority Critical patent/JPS617422A/ja
Priority to US06/742,188 priority patent/US4610164A/en
Publication of JPS617422A publication Critical patent/JPS617422A/ja
Publication of JPH0467614B2 publication Critical patent/JPH0467614B2/ja
Granted 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
    • G01F23/2965—Measuring attenuation of transmitted waves
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
JP59128351A 1984-06-20 1984-06-20 液面レベル検出方法 Granted JPS617422A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP59128351A JPS617422A (ja) 1984-06-20 1984-06-20 液面レベル検出方法
US06/742,188 US4610164A (en) 1984-06-20 1985-06-07 Method of detecting liquid level

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59128351A JPS617422A (ja) 1984-06-20 1984-06-20 液面レベル検出方法

Publications (2)

Publication Number Publication Date
JPS617422A JPS617422A (ja) 1986-01-14
JPH0467614B2 true JPH0467614B2 (OSRAM) 1992-10-28

Family

ID=14982664

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59128351A Granted JPS617422A (ja) 1984-06-20 1984-06-20 液面レベル検出方法

Country Status (2)

Country Link
US (1) US4610164A (OSRAM)
JP (1) JPS617422A (OSRAM)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4964090A (en) * 1989-07-19 1990-10-16 Trw, Inc. Ultrasonic fluid level sensor
US5126616A (en) * 1989-09-05 1992-06-30 Pacesetter Infusion, Ltd. Ultrasonic transducer electrical interface assembly
US5000663A (en) * 1989-09-05 1991-03-19 Pacesetter Infusion, Ltd. Automatic tubing lock for ultrasonic sensor interface
US5176631A (en) * 1989-09-05 1993-01-05 Pacesetter Infusion, Ltd. Ultrasonic air-in-line detector for detecting entrained air in a medication infusion system
US5053747A (en) * 1989-09-05 1991-10-01 Pacesetter Infusion, Inc. Ultrasonic air-in-line detector self-test technique
US5064412A (en) * 1989-09-05 1991-11-12 Pacesetter Infusion, Ltd. Ultrasonic air-in-line detector for a medication infusion system
US5172595A (en) * 1990-06-12 1992-12-22 Scotsman Group, Inc. Bin level control circuit and transducer mounting system for an ice making machine
US5060484A (en) * 1990-06-12 1991-10-29 Scotsman Group, Inc. Bin level control circuit and transducer mounting system for an ice making machine
EP0676624B1 (en) 1994-04-06 2002-07-31 Simmonds Precision Products Inc. Ultrasonic fluid level sensing without using a stillwell
US5841028A (en) * 1996-05-02 1998-11-24 Chiron Corporation Automated liquid-level vessel apparatus
DE19718965C2 (de) 1997-05-05 2001-04-19 Endress Hauser Gmbh Co Verfahren und Anordnung zur Überwachung eines vorbestimmten Füllstands in einem Behälter
US7615954B1 (en) * 2005-01-05 2009-11-10 Metropolitan Industries, Inc. Density sensing, solid state, pump switching system
DE102005054203A1 (de) * 2005-11-14 2007-05-16 Siemens Ag Vorrichtung zum Ermitteln der Lage mindestens einer Phasengrenze durch Auswertung von Schallsignalen
DE102008050326A1 (de) * 2008-10-07 2010-04-08 Endress + Hauser Gmbh + Co. Kg Vorrichtung zur Bestimmung und/oder Überwachung einer Prozessgröße eines Mediums
WO2011061547A1 (en) * 2009-11-23 2011-05-26 Bae Systems Plc Liquid level sensor
EP2976604A4 (en) * 2013-03-22 2017-01-25 The University of Western Ontario Self-calibrating ultrasonic-based monitoring system
EP2816630A1 (de) * 2013-06-17 2014-12-24 Siemens Aktiengesellschaft Elektrochemische Speichervorrichtung mit Zustandsdetektor
GB2527759A (en) * 2014-06-30 2016-01-06 Mobrey Ltd Improvements in or relating to level detection
TWI553300B (zh) 2015-12-01 2016-10-11 財團法人工業技術研究院 液面感測裝置
EP3208577B1 (en) * 2016-02-17 2022-04-27 HELLA GmbH & Co. KGaA Method and apparatus for detecting the liquid level in a liquid reservoir
CN107202621B (zh) * 2016-03-17 2019-06-25 丰唐物联技术（深圳）有限公司 一种检测水位的方法及水位传感器
WO2022120624A1 (zh) * 2020-12-09 2022-06-16 中国科学院声学研究所南海研究站 一种自动触发和自校准的超声测雨系统
DE102021116911A1 (de) 2021-06-30 2023-01-05 Endress+Hauser Conducta Gmbh+Co. Kg Trennschichtsensor sowie Betriebsverfahren eines Trennschichtsensors

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3080752A (en) * 1958-06-30 1963-03-12 Acoustica Associates Inc Continuous level measuring apparatus
US3079596A (en) * 1960-03-17 1963-02-26 Duane E Atkinson Acoustic level sensing system
US3237451A (en) * 1962-10-16 1966-03-01 Acoustica Associates Inc Volumetric measurement system
GB1512376A (en) * 1974-08-06 1978-06-01 Communications Patents Ltd Wired broadcasting systems
JPS5215361A (en) * 1975-07-25 1977-02-04 Shimada Phys & Chem Ind Co Ltd Ultrasonic distance measuring method
JPS53140466U (OSRAM) * 1977-04-13 1978-11-07
JPS55155933U (OSRAM) * 1979-04-26 1980-11-10
US4474061A (en) * 1981-11-27 1984-10-02 Motorola, Inc. Sonic pressure volume measuring device

Also Published As

Publication number Publication date
JPS617422A (ja) 1986-01-14
US4610164A (en) 1986-09-09

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Legal Events

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